The chloroplasts of flowering land plants typically contain at least two photosynthetic pigments, chlorophyll a and chlorophyll b, that differ in the wavelengths of light they absorb. The synthesis of chlorophyll pigments from precursor molecules is a process that involves many sequential enzyme-catalyzed steps. Researchers studied the growth and photosynthetic ability of a plant that contained a mutant form of one of the enzymes required for chlorophyll biosynthesis.

Q3) Scientists claim that a plant that has more than one type of photosynthetic pigment has greater fitness than a plant that has only one type of photosynthetic pigment. Provide reasoning to justify this claim.

Answers

Answer 1

Answer:

The presence of multiple photosynthetic pigments allows a plant to absorb a greater range of wavelengths of light, which means that the plant can photosynthesize more efficiently.

Explanation:

Thus, a plant with multiple photosynthetic pigments is more fit than a plant with only one pigment because it can convert more light into energy.

Answer 2

It is undoubtedly true what scientists claim: plants with multiple types of photosynthetic pigment are more fit.

What are photosynthetic pigment?

A form of pigment that is prominently found in the chloroplasts, a cell organelle found in plants and photosynthetic microorganisms, is referred to as a photosynthetic pigment.

The light energy needed for photosynthesis is captured by these pigments.

The absorption of energy from a broad variety of visible spectrum wavelengths is facilitated by the presence of multiple types of photosynthetic pigment.

Each pigment among them has an own absorption spectrum that admirably explains how it absorbs or reflects various wavelengths of light.

Thus, it is true that the one having more than one type of photosynthetic pigment has greater fitness.

For more details regarding photosynthetic pigments, visit:

https://brainly.com/question/26561399

#SPJ1


Related Questions

I need help with my work

Answers

yeah my bad but i really dont know the answer

What did the Final Rule under Title IX formally add to the Title IX definition of sexual harassment?

Answers

The Final Rule is one that mandated a K-12 school to respond anytime any employee has notice of sexual harassment, such as allegations of sexual harassment.

What was the rule about?

The Title IX Final Rule is said to be one that was addressing or handling the case of Sexual Harassment in Schools.

The issue of sexual harassment is a very serious one and it is one that can land a person in jail. Therefore if faced, one should report to the appropriate authorities and never shy away.

Hence, the Final Rule is one that needs a K-12 school to give their respond if at any time, any employee has seen of sexual harassment, such as allegations of sexual harassment.

Learn more about sexual harassment from

https://brainly.com/question/9647226

#SPJ1

The author regards the river as
A a friend.
B an obstacle.
C an inspiration.
D a threat.

Answers

More information is needed to solve this question
We need more information about this

The tenth grade is usually the
year of high school.
second
third
first
fourth
Other:

Answers

Answer:

Second

Explanation:

9th is first and in tenth grade (in the US) is a sophomore

your second year of high school is tenth grade

The Jenkins family and the Moore family each used their sprinklers last summer. The water output rate for the Jenkins family's sprinkler was per hour. The water output rate for the Moore family's sprinkler was per hour. The families used their sprinklers for a combined total of hours, resulting in a total water output of . How long was each sprinkler used?

Answers

How long was each sprinkler used is 30 hours.

How long was each sprinkler used

Let x represent  how long each sprinkler was used

Hence:

40(x)+15(55-x)=1575

40x+825-15x=1575

Collect like terms

40x+-15x=1575-825

25x=750

Divide both side by 25x

x=750/25

x=30 hours

Therefore the Jenkins used the sprinklers for 30 hours while Green's used it  for 25.

The complete question is:

The Jenkins family and the Moore family each used their sprinklers last summer. The water output rate for the Jenkins family's sprinkler was 40l per hour. The water output rate for the Moore family's sprinkler was per 15l hour. The families used their sprinklers for a combined total of 55 hours, resulting in a total water output 1575 of . How long was each sprinkler used?

Learn more about  how long was each sprinkler used here:https://brainly.com/question/13921631

#SPJ1

Question 3 of 20:
Select the best answer for the question.
3. According to Erikson, middle adults (ages 40 to 65) are at risk of feeling stagnation if they don't pass on what they've learned to future generations.
What does stagnation mean in this context?
O A. A lack of personal growth or development
O B. Renewed spirituality
OC. A better sense of self
O D. Repressed anger

Answers

The stagnation mean in this context is option A: A lack of personal growth or development.

What is stagnation According to Erikson?

Stagnation is known to be a stage that occurs in course of middle adulthood that is between the ages of 40 - 65 and it is one where People are said to often experience a need to make or nurture things that will live longer than them.

Stagnation on its own connote a point at which a person is not moving forward and also not moving backwards. it is a point at which a person is at a stand still.

Hence, The stagnation mean in this context is option A: A lack of personal growth or development.

Learn more about personal growth from

https://brainly.com/question/12827196

#SPJ1

Length of college writting pages

Answers

The appropriate and accepted length of college writing pages (essays) should be 4 pages.

What is an essay?

An essay can be defined as a written composition with specific information on a particular topic, idea, event, subject matter or thing, so as to demonstrate a student's analytical abilities.

As a general rule, the appropriate and accepted length of college writing pages (essays) should be 4 pages, but 5 pages might be accepted in some cases.

Read more on essay here: brainly.com/question/21336802

#SPJ1

7. It is a marketing strategy in which the owners convince the consumers or buyers to have a free taste of
use of the product.
a. Free sample marketing b. Retalling
c. Selling in the farm
d. Word-of-mouth marketing
8. The following are steps in making brochure, which of this is not included?
a. Determine the audience for your message.
b. Decide the purpose of your brochure.
C. Think about the message you want to convey to your readers.
d. Give directly to the audience without even text.
9. It is a way of obtaining products where customers go directly to the farm to buy
a. Free sample marketing b. Retailing
c. Selling in the farm d. Selling through Cooperatives​

Answers

Answer:

7. Free sample marketing.

8. Give directly to the audience without even text.

9. Selling in the farm.

Explanation:

7. Free sample marketing can be defined as a marketing strategy in which the owners convince the consumers or buyers to have a free taste or use of the product. The main purpose of free sample marketing is to create a massive awareness of a product, most especially a new product and to  gain consumer trust.

8. A brochure can be defined as a book or pamphlet comprising of texts or images usually for the promotion of goods and services. Thus, it is usually given to potential customers or consumers by a salesperson.

The following are steps in making brochure;

a. Determine the audience for your message.

b. Decide the purpose of your brochure.

c. Think about the message you want to convey to your readers.

9. Selling in the farm can be defined as a way of obtaining products, where customers go directly to the farm to buy. Therefore, in this type of market, the farmers sells their crops or produce directly to the customers without any middleman such as retailers or wholesalers.

Using practical illustrations in politics, religion, medicine and law, explain why a value judgement, unlike a factual statement, will have no objective truth

Answers

A value judgement, unlike a factual statement, will have no objective truth because it is like giving a moral judgment and it can look like offering a fact as it tries to describe objective reality but it is merely stating one's preference or opinion.

Is value judgement an objective?

The term value judgment is one whose conclusion is known to be insular, one-sided, and it is one that not objective  and it is one that contrasting with judgments as a result of deliberation, balance and others.

A  practical illustrations in politics is the case of Russian and Ukraine war where China is in support of Russia.

Hence, A value judgement, unlike a factual statement, will have no objective truth because it is like giving a moral judgment and it can look like offering a fact as it tries to describe objective reality but it is merely stating one's preference or opinion.

Learn more about value judgement from

https://brainly.com/question/26181959

#SPJ1

what is foundation of education​

Answers

Answer:

huh?

Explanation:

What makes a school formal organization

Answers

Answer:

A school has the following formal structure:

The school board acts as an agent of wider community. Frankly speaking, the school is a complex web of social interactions with various types of interactions taking place simultaneously, each affecting the whole, and having at least an indirect influence upon the child.

Answer:

School organizations, just as other organizations, have formally stated goals, criteria for membership, a hierarchy of offices, and a number of informal goals, such as friendship and sharing of interests.

I hope it's helpful!

• How could the natural hormone melatonin be reduced or altered in order to slow the metastasis/circulating cancer cells breaking away from the original tumor and forming new tumors without upsetting the natural balances in our bodies?
Could someone help to reduce the length but making the same point for my scientific question

Answers

The natural hormone melatonin be reduced or altered in order to slow the metastasis/circulating cancer cells breaking away from the original tumor and forming new tumors without upsetting the natural balances in our bodies by introducing beta blockers

What are hormones?

Hormones are chemical substances which are released to the sites where they are needed in order to help regulate the body's internal environment

Learn more about hormones:

https://brainly.com/question/8162998

#SPJ1

Students have to pay to go to
O kindergarten
O high school
O middle school
W
O private school
Other:

Answers

Private $$$$$$$$$$$$$$$$$$$$$$$$$$
Private school has to be paid for

Students have to pay to go to
4 points
kindergarten
high school
middle school
private school
Other:

Answers

Students have to pay to go to college, so I would say other. Although, parents do have to pay for their kids to go to private school. Hope this helps!

How does keeping the end in mind keep you motivated when you are overwhelmed

Answers

Keeping the end in mind keep you motivated when you are overwhelmed because as at that state, you see the possibility of finishing the project and as such the person is motivated and overwhelmed.

Why is it vital to keep the end in mind?

If a person begin a project  with the end in mind one can be able to have or gain clarity, and this will naturally push you to become more efficient.

Note that it will also help you to plan and strategize the best route in terms of your goals and as such, Keeping the end in mind keep you motivated when you are overwhelmed because as at that state, you see the possibility of finishing the project and as such the person is motivated and overwhelmed.

Learn more about motivation from

https://brainly.com/question/11871721

#SPJ1

Read the description of 1844 Manchester England and write a short advertisement for a real estate company that might encourage people to move or work there.

Answers

Answer:

Advertising is any paid form of communication from an identified sponsor or source that draws attention to ideas, goods, services or the sponsor itself. Most advertising is directed toward groups rather than individuals, and advertising is usually delivered through media such as television, radio, newspapers and, increasingly, the Internet. Ads are often measured in impressions (the number of times a consumer is exposed to an advertisement).

Advertising is a very old form of promotion with roots that go back even to ancient times. In recent decades, the practices of advertising have changed enormously as new technology and media have allowed consumers to bypass traditional advertising venues. From the invention of the remote control, which allows people to ignore advertising on TV without leaving the couch, to recording devices that let people watch TV programs but skip the ads, conventional advertising is on the wane. Across the board, television viewership has fragmented, and ratings have fallen.

Print media are also in decline, with fewer people subscribing to newspapers and other print media and more people favoring digital sources for news and entertainment. Newspaper advertising revenue has declined steadily since 2000.[1] Advertising revenue in television is also soft, and it is split across a growing number of broadcast and cable networks. Clearly companies need to move beyond traditional advertising channels to reach consumers. Digital media outlets have happily stepped in to fill this gap. Despite this changing landscape, for many companies advertising remains at the forefront of how they deliver the proper message to customers and prospective customers.

The Purpose of Advertising

Advertising has three primary objectives: to inform, to persuade, and to remind.

Informative Advertising creates awareness of brands, products, services, and ideas. It announces new products and programs and can educate people about the attributes and benefits of new or established products.

Persuasive Advertising tries to convince customers that a company’s services or products are the best, and it works to alter perceptions and enhance the image of a company or product. Its goal is to influence consumers to take action and switch brands, try a new product, or remain loyal to a current brand.

Reminder Advertising reminds people about the need for a product or service, or the features and benefits it will provide when they purchase promptly.

Explanation:

PLEASSS MARK ME AS BRAINLIEST ANSWER

Please select the word from the list that best fits the definition

Shows boundaries of cities

Answers

Answer:

Political Maps

Explanation:

Please select the word from the list that best fits the definition

Shows boundaries of cities

Answer:

Political Maps

Explanation:

Which of the following statements best explains the trend shown in the data?

a. State governments tend to be more responsive to social movements than the federal government because they are able to test out new programs on a smaller scale.
b. The growth of social media has enabled movements to accelerate the acceptance of social change at the state level, because these activities are not as successful at the federal level.
c. A social movement needs to be approved by a percentage of the states before the federal government will consider acting on the change because of fear of angering the conservative electorate.
d. The federal government refuses to use the federal courts to respond to social-reform movements.

Answers

Hello there!

The correct answer is A:

State governments tend to be more responsive to social movements than the federal government because they are able to test out new programs on a smaller scale.

It is my pleasure helping students here!

~Garebear

Thorium-234 has a half-life of 24 days. How many grams of thorium-234 would remain from 100 g after 72 days? Show your problem-solving technique.

Answers

Answer:

[tex] \underline{ \boxed{12.5 g }}\: of \: (thorium-234 ) \\ \: would \: remain \: from \: \\ 100 g \: after \: 72 \: days[/tex]

Explanation:

[tex]if \: (Thorium-234) \: has \: a \: (half-life )\: of \: 24 \: days \\ then \: : it \: will \: disintegrate \: into \: \frac{1}{2} \: of \: 100g \\ but \: after \: 72 \: days \: i.e \: (24 \times 3)days \\ it \: will \: reduce \: to\:half \: its \: original \: ( \times 3) \\ hence \to \: \\ \frac{100}{ {2}^{3} } = \frac{100}{8} = \frac{25}{2} = \underline{ \boxed{12.5g}}[/tex]

A plane crashes on the border of the USA and Canada where do you bury the survivors?

Answers

Survivors are not to be buried.

Who are survivors?

The survivors of accidents are those that escape death or being killed during the course of the events. They could be totally unhurt or injured in a non-fatal way and get back to their healthy self with time.

Unlike survivors, dead bodies are considered a nuisance to the environment. Hence, they are quickly buried before they start decomposing and become a source of diseases to the populace.

In other words, survivors are not usually buried in any sane society. Only those that are dead are buried.

So, if a plane crashes on the border of the USA and Canada, burying the survivors does not come up at all. That would be a total aberration.

More on the USA and Canada can be found here: https://brainly.com/question/17338291

#SPJ1

Which of the following can be considered a military alliance? (2 points)
Kyoto Protocol
NAFTA
NATO
United Nations

a
I only

b
III only

c
I and II

d
I, II, and III

e
II, III, and IV

Answers

Answer:

B. III only (NATO)

Explanation:

I need to get the solution

Answers

yeah im sorry but i dont know

:c

In U.S., children usually have to go to school when they are
three years old
four years old
five years old
six years old
Other:

Answers

Answer:

Hmm... I think that's a trick question. I know in Pennsylvania, kindergarten is technically not required and kindergarten is when kids are 5 turning 6 so I'm guessing it's other. I'm not totally sure. Sorry, but I hope this helps!

47. The binding of erythropoietin to the
erythropoietin receptor (EpoR) stimulates
intracellular signaling in certain cells, which
causes them to differentiate to red blood cells.
The EpoR is a transmembrane protein with two
cytoplasmic domains, each of which is bound by
a kinase protein, JAK2. The binding of
erythropoietin to the EpoR causes the
cytoplasmic domains of the EpoR to undergo
conformational changes that activate the bound
JAK2 kinases. The JAK2 kinases then
phosphorylate several intracellular proteins,
including STATS, whose resulting activity
causes the cells to differentiate to red blood
cells.
Which of the following explains how a mutation
that removes a portion of each cytoplasmic
domain of EpoR most likely affects
differentiation of the cells?
(A) The cells will differentiate more rapidly
than they typically do because the JAK2
kinases will always be active.
(B) The cells will mature to another cell type
because the JAK2 kinases will
phosphorylate inappropriate cellular
proteins.
(C) STATS will not be activated because
erythropoietin cannot bind to the EpoR.
(D) STATS will not be activated because it will
not be phosphorylated by the JAK2
kinases.

Answers

Erythropoietin (Epo) is required for the production of mature red blood cells. The requirement for Epo and its receptor (EpoR) for normal heart development and the response of vascular endothelium and cells of neural origin to Epo provide evidence that the function of Epo as a growth factor or cytokine to protect cells from apoptosis extends beyond the hematopoietic lineage. We now report that the EpoR is expressed on myoblasts and can mediate a biological response of these cells to treatment with Epo. Primary murine satellite cells and myoblast C2C12 cells, both of which express endogenous EpoR, exhibit a proliferative response to Epo and a marked decrease in terminal differentiation to form myotubes. We also observed that Epo stimulation activates Jak2/Stat5 signal transduction and increases cytoplasmic calcium, which is dependent on tyrosine phosphorylation. In erythroid progenitor cells, Epo stimulates induction of transcription factor GATA-1 and EpoR; in C2C12 cells, GATA-3 and EpoR expression are induced. The decrease in differentiation of C2C12 cells is concomitant with an increase in Myf-5 and MyoD expression and inhibition of myogenin induction during differentiation, altering the pattern of expression of the MyoD family of transcription factors during muscle differentiation. These data suggest that, rather than acting in an instructive or specific mode for differentiation, Epo can stimulate proliferation of myoblasts to expand the progenitor population during differentiation and may have a potential role in muscle development or repair.

What is macroeconomic

Answers

Answer:

Macroeconomics is the the study of economics between nations as a whole. So it's basically how the behavior of one country can influence others. It's also primarily concerned with how we deal with scarcity, since everything has a limited supply, so we have to make decisions on how we allocate our limited resources.

Answer:

It is the sum of all the decisions of the families and individual enterprises of the economy, seeing their behavior of these as a whole.

Explanation:

Hope this helps

(HELP 50 POINTS NEED HELP ASAP PLEASE) Summarize the third NASA spinoff technology in the answer space.- Earth Science

Answers

Answer:

One of the first interesting NASA SpinoffTechnology is the Drill Bits that are able to break off and retain rock samples. They are then collected on Perseverance and flown to earth for the use of geologists.What is NASA Spinoff Technology?This is a publication from the National Aeronautics and Space Administration that shows the technology used by NASA to the public.NASA has shown about fifty technologies each year since 1976 in this annual publication.

Explanation:

The summary of the third NASA spinoff technology is given below.

What is a summary?

A summary is a concise version of the larger text holding all essential ideas but without any verbiage.

The summary of the Third NASA Spinoff Technologies is given as follows:

NASA spinoff technologies are commercial goods and services created with NASA's aid, such as Small Business Innovation Research (SBIR) or STTR awards, licensing of NASA patents, use of NASA facilities, technical assistance from NASA people, or data from NASA research.

"NASA Tech Briefs" provides frequent and website-based information about new NASA technology that may be valuable to business, while successful examples of commercialization are documented annually in the NASA journal "Spinoffs."

Over the years, the Spinoff journal has recorded over 2,000 technologies.

Learn more about NASA:
https://brainly.com/question/24174850
#SPJ1


Amanda is a teacher working with a student named Chanse. Previously, when
Chanse laughed loudly at the other kids in the class, Amanda spoke with him and
asked him laugh quietly. Following an FBA and BIP, Amanda stopped speaking with
Chanse when he laughed loudly and instead continued speaking to the other
students quietly, Chanse began laughing louder and eventually began yelling. This
could be an example of
O
a poor FBA.
4
an extinction burst.
W 4%
resurgence,
implementation fidelity

Answers

In the case above, one can attribute it to an extinction burst.

What is an Extinction burst?

This is known to be a scenario of a former reinforced or learned behavior temporarily going up when the reinforcement for the behavior is said to be deleted or removed.

Hence one can say that Chanse  behavior can be attributed to an extinction burst.

Learn more about extinction burst from

https://brainly.com/question/12912712

#SPJ1

Both nonpoint source pollution and point source pollution can impact water quality in streams, rivers, and lakes. Despite significant improvements to water quality from implementation of Clean Water Act regulations, many waters across the United States do not meet water quality standards. What is the most likely cause for the continued impairment of water quality?

Much of the pollution today is from pollutants being exposed to rainwater, and runoff is reaching the water.

The chemical industry is producing and discharging record amounts of chemicals into rivers and streams.

Environmental enforcement has been reduced, and more pollution is being discharged into rivers and streams.

Water quality standards have become more lenient, allowing more pollutants to be discharged into the water.

Answers

The most likely cause for the continued impairment of water quality  is much of the pollution today is from pollutants being exposed to rainwater, and runoff is reaching the water.

What is the leading cause of water quality problems?

The most common kind of Water Contamination that is seen in the US and the world is agriculture and it is said to be the leading cause of water degradation.

In the United States, agricultural pollution is said to be at the highest peak and as such, the most likely cause for the continued impairment of water quality  is much of the pollution today is from pollutants being exposed to rainwater, and runoff is reaching the water.

Learn more about  Clean Water Act from

https://brainly.com/question/924602

#SPJ1

If all chlorine and bromine from human sources were eliminated from the stratosphere, which statement would be correct?


Chlorine and bromine would be zero.

Chlorine would be less abundant than bromine.

Current total chlorine would decrease by half.

Bromine would be less abundant than chlorine.

Answers

The statement that would be correct is that Current total chlorine would decrease by half.

What is the presence of chlorine and bromine in the stratosphere?

The both in the stratosphere leads to Ozone Depletion this is because if chlorine and bromine atoms unit with ozone in the stratosphere, they tend to destroy ozone molecules.

Hence, The statement that would be correct is that Current total chlorine would decrease by half as it is the most valuable options among them.

Learn more about bromine from

https://brainly.com/question/23894494

#SPJ1

Chlorine and bromine would be zero.

In U.S., children usually have to go to school when they are
O three years old
о
four years old
five years old
six years old
O
Other:

Answers

Explanation:

In the USA, children start school when they are five or six years old. Depending on the state, schooling is compulsory until the age of 16 or 18. Children younger than five can go to a nursery school or preschool.

It’s usually 5 years old
Other Questions
the benefits of pioneering include the following except a. market uncertainty b. barriers to entry c. learning curve d. resource advantage e. preference formation condtion in which mental symptoms such as amnesia hide the pain T/F The following is an example of normative ethics: "Capital punishment is wrong because it is wrong to directly take a human life." You buy one SPX call option with a strike price of 2,892 and write one SPX put option with a strike of 2,933. Both options have the same maturity date.What is your payoff if the S&P 500 stands at 2,729 on the expiration date of the options? Which of the following might be considered a long-term solution to the current nursing shortage?A) Granting sign-on bonuses to newly hired registered nurse employeesB) Providing generous continuing-education reimbursement for registered nurse employeesC) Instituting initiatives to promote a more positive image of nursing to aid in changing the public's perceptionD) Granting license reciprocity to all practicing registered nurses so that they could work in any state of their choosing What is the equation for a circle centered at the origin (0,0)? determining the mass of sodium hydroxide pellets required to prepare 250.0 ml of a 0.10 m sodium hydrowxid soltion firearm databases can be searched to match crime scene evidence to ____________________ weapons. list the customer id and name of all the customers who took a gymnastics class The majority of fiction films fall into what category of ideology? Select one: a. implicit b. neutral c. explicit d. cultural. Heather puts $200 in a savings account that earns simple interest. The interest rate is 5%. How long will it take heather to have $250 in this account if she makes no other deposit or withdrawal?A. 50 yearsB. 25 yearsC. 10 yearsD. 5 years true or false: companies who rely on network effects to create social value should encourage rapid scaling and shareable features. Write 36 as a product of primes.Use index notation when giving your answer. hich of the following points in the document submitted by michael are correct? check all that apply. the irs puts restrictions on lease terms so that the lease transaction can allow companies to increase rapid payments that are tax deductible. the lessee has the option of buying the equipment at the expiration of the lease contract at its fair market value. the lessee or any other party has the right to purchase the equipment at the expiration at a predetermined price specified in the lease contract. the residual value of an equipment after expiration of the lease should be at least 20% without adjusting for inflation. equipment with a 20-year life cannot be leased for more than 16 years. expenses associated with international and global bon funds tend to be _____ than those of domestic bond funds because of the ______ costs involved nancy works for peoplesoft, an up-and-coming company that makes soft people, such as inflatable paramedic demonstration dummies. the working atmosphere at this start up organization provides workers with a more relaxed, family feel so that workers do not feel over stressed. at the same time, there exists a strong motivation to get peoplesoft's product out to the market. part of the ceo's plan is to forge communal bonds to emphasize the need to be innovative in everything the company does, so that it can separate itself from the competition. the atmosphere of values that makes up the environment where nancy works is better known as rembert works for a grocery store that buys food from producers and sells it to customers. the grocery store is considered a What best describes these? A prokaryote, a eukaryote, both, or neither.Has a cell membraneHas ciliaHas a NucleusHas circular DNAHas multiple chromosomesHas spike proteins to attach to cell membranesHas FlagellaHas double stranded RNAHas Ribosomes Question #1 Using Boolean algebra prove that the LHS = RHS (a) W. Y+ W'. Y. Z' + W. X. Z + W'. X. Y' = W. Y + W'. X. Z' + X'. Y. Z' + X. Y'. Z (b) A. D' + A'. B + C'. D + B'. C = (A' + B' + C + D'). (A + B + C + D) An L-R-C series circuit consists of a 2.50 uF capacitor, a 4.50 mH inductor, and a 60.0 ohm resistor connected across an ac source of voltage amplitude 18.0 V having variable frequency.(a)At what frequency is the average power delivered to the circuit equal to 1/2 V_rms I_rms ?