a cyclist applies a constant forward force of 20 N to maintain a velocity 2.5 m/s. how much power does the cyclist deliver?

Answers

Answer 1

The power exerted by the cyclist is determined as 50 W.

Average power exerted by the cyclist

The power exerted by the cyclist is calculated as follows;

P = FV

where;

F is the applied forceV is velocity

P = 20 x 2.5

P = 50 W

Thus, the power exerted by the cyclist is determined as 50 W.

Learn more about power here: https://brainly.com/question/25263760

#SPJ1


Related Questions

which of the following travels the fastest​

Answers

All move at the same speed.

Explanation:

Electronic magnetic spectrum includes radio waves, micro waves, infra red, visible light, ultra violet, x-rays, gamma rays. These all electromagnetic waves travel at the same speed of light of about 300,000,000 m/s through vacuum. Though they have different wavelength, their speed is same.

how does radiation differ from conduction and convection for the transference of heat
?

Answers

Answer:

look below! :)

Explanation:

Radiation transfers heat through electromagnetic waves

conduction transfers heat through direct contact of things

convection transfers heat through movement of air or water


A kettle consumes 198 kJ to boil water. If 168 kJ was used to boil the
water, what is the efficiency of the kettle?

Answers

The efficiency of the kettle is 117.9%

What is efficiency?

Efficiency is used to measuring how much work or energy we can conserve in a process. In other words, it is like comparing the output of the energy to the input of the energy in any given system.

It is also define as the ratio of  Energy Input to the Energy Output. To express it in percent multiply it by 100.

Here, Efficiency = Energy output / Energy input

          [tex]η =\frac{W_{out} }{W_{in} } * 100[/tex]

[tex]η = \frac{198kJ}{168kJ} * 100[/tex]  

=  117.9%

So , the efficiency is 117.9%

For more Efficiency related question visit:

https://brainly.com/question/13110830

#SPJ1

Describe a situation in which friction changes the direction of a moving object.​

Answers

Consider a person trying to push a large crate across a floor, as in the diagram. As they apply a force to push the crate along the floor in one direction, a frictional force is generated in the opposite direction.

[tex]study \: well.....[/tex]

can a person run at a speed of 20 meters per second

Answers

Answer:

No

Explanation:

The fastest recorded time for a person to run 100 metres is 9.58 seconds, which is the equivalent of 10.4 metres per second

Answer:

No

Explanation:

Humans can run as fast as 19.3m/s, using their full possible energy.

ubes have sides of equal lengths. What is the fastest way to measure the volume of a cube-shaped table?

measure the length, width, and height of the table, then multiply those numbers
measure one side with a ruler, and multiply that number by itself three times
measure one side with a ruler, and multiply that number by itself and then by
measure the length, width, and height of the table, then multiply those numbers by

Answers

The quickest technique to calculate the volume of a cube-shaped table is to use a ruler to measure one side, then multiply that figure by three. Option B is correct.

How do you calculate the volume of a cube?

Assume the side length of the cube under consideration is L units. The volume of the cube is then equal to L³ cubic units.

The volume of a cube is;

V = L³

Ubes have equal-length sides. The quickest technique to calculate the volume of a cube-shaped table is to use a ruler to measure one side, then multiply that figure by three.

Hence option B is correct.

To learn more about the volume of a cube refer

https://brainly.com/question/26136041

#SPJ1

What is the frequency in hertz of the UK
mains electricity supply?

Answers

Answer:

HERTZ=HZ

Explanation:

whats the process to getting the answer

Answers

The third charge is in equilibrium, 2a/3

What is electric field?

An electric property associated with each point in space when charge is present in any form.

The magnitude and direction of the electric field are expressed by the value of E, called electric field strength or electric field intensity or simply the electric field.

According to the question,

force on it due to +4e= force due to +e

[tex]\frac{ k(4e)q}{x^{2} } = \frac{ k(e)q}{(a-x)^2}[/tex]

4(a-x)² = x²

2(a-x)=x

2a-2x =x

x= [tex]\frac{2a}{3}[/tex]

Therefore,

The position along the line XY is [tex]\frac{2a}{3}[/tex]

Learn more about Electric field here:

https://brainly.com/question/15800304

#SPJ1

9. Ripening is a _______________ and spoiling is a ______________.
A. Physical reaction, chemical reaction.
B. Physical reaction, physical reaction.
C. Chemical reaction, physical reaction.
D. Chemical reaction, chemical reaction.

Answers

Answer:

C

Explanation:

Chemical reaction,physical

C. Chemical reaction, physical reaction

what would happened if there is no invented of machine?​

Answers

if there were no invention of machines then life would have been more difficult and simple works could be hard to do. Even now we are using our phones, sitting in a AC room interacting to eachother from different places. without the invention of machines simple things like transportation would have been difficult. There would be horses and donkey for the transportation. There would be no electricity,no internet, no transportation, not even c computers or mobile etc. The market for business will be smaller, the knowledge and news about world would be less.

so the problem would have been bigger than we can imagine. But one thing is that nature could survive lot more compared to what we have done till now by destroying nature.

What is the unit of velocity ratio and why​

Answers

Answer:

the unit of velocity is meter per second

Answer:

No unit

Explanation:

If this question is asking what the unit of velocity to velocity is i.e. v/v then there is no unit because the units are canceled.

PLEASE HELPP

just do the diagram

Answers

Answer:the line away from the spacecraft should be straight down (perpendicular to it). Label this M. This is the force of the moon on the spacecraft. A minuscule line upward from the moon towards the spacecraft shows the force of the spacecraft on the moon. Should be directly below the spacecraft and pointed straight up at it.

Explanation:

Identify each statement that describes a benefit of the scientific method. (Select all choices that apply)
Group of answer choices

a) It provides an answer to questions immediately.

b) It gives scientists a standardized way to approach a problem.

C) It gives scientists a common vocabulary for sharing information.

D) It reduces bias and judgment from personal experiences.

Answers

The statements that describe a benefit of the scientific method are as follows:

It gives scientists a standardized way to approach a problem. It reduces bias and judgment from personal experiences. It gives scientists a common vocabulary for sharing information.

Thus, the correct options are B, C, and D.

What is the Scientific method?

The scientific method may be defined as a strategy of research in which a problem is recognized, relevant data is collected, a conjecture is composed of this data, and the assumption is empirically tested to determine the outcome of particular research.

The scientific method never explains or provides an answer to any question immediately because it consists of a scripted format with certain parameters.

The scientific method uses the identical vocabulary for sharing information with one another in particular terminology.

Therefore, it is well described above.

To learn more about the Scientific method, refer to the link:

https://brainly.com/question/17216882

#SPJ1

Please help me! Uniform acceleration problem sheet:
In 1997, the thrust SSC, a turbofan powerd vehicle, acheive the land speed world record of 780.34 mph (1,223.65km/h) and became the first car to break the sound barrier. If it tool 1 minute for the thrust SSC to reach its top speed, what was the average acceleration during the time?

Answers

From the calculation, the value of the acceleration is 5.8 m/s^2.

What is uniform acceleration?

The term uniform acceleration refers to a situation in which the velocity increases by equal amounts in equal time intervals.

Given the fact that the car started from rest and reached a velocity of  780.34 mph or 348.84 m/s in 1 minute of 60 seconds;

v = u + at

a = v/t

a = 348.84 m/s/ 60 seconds

a = 5.8 m/s^2

Learn more about acceleration:https://brainly.com/question/12550364?

#SPJ1

A rare butterfly (0.01 kg) is slowly flapping its wings and moving across a road. An unsuspecting driver in a large car (1000 kg) going very fast makes a sharp turn and runs directly into the butterfly. The butterfly smashes against the windshield (of course) but the car keeps moving down the road. Which object has the greater force: The butterfly or the car?

Answers

Both the butterfly and the large car will have equal forces but in opposite direction.

Newton's third law of motion

Newton's third law of motion states that action and reaction are equal and opposite. That is, the force exerted on an object is equal to the reaction experienced by the object.

Fa = - Fb

where;

Fa is the force exerted by the large carFb is the force of the butterfly

Thus, both the butterfly and the large car will have equal forces but in opposite direction.

Learn more about Newton's third law of motion here: https://brainly.com/question/25998091

#SPJ1

The actual mass of a sheet of copy paper is 4.5 g. What must be the actual mass of a 1 cm² plece of copy paper?
Show your calculations.

Answers

The actual mass of a 1 cm² piece of copy paper is determined as 0.0074 g.

Area of the sheet of paper in square centimeters

Area = Length x Width

Area = (11 x 2.54 cm) x (8.5 x 2.54 cm)

Area = 603.22 cm²

Actual mass of the sheet of paper

Mass = area density/area

Mass = (4.5 gcm²)/(603.22 cm²)

Mass = 0.0074 g

The complete question is below:

A sheet of 8.5 inch by 11inch paper has a mass of 4.50 grams one square centimeter , 1cm2 of that sheet of paper will have a mass closets to ____grams ( (hint use 1inch = 2.54 centimeters and area = length times)

Learn more about mass here: https://brainly.com/question/1762479

#SPJ1

which is a barrier to the correct interpretation of what you hear?

Answers

The a barrier to the correct interpretation of what you hear can occur due to different frame of reference.

What is frame of reference?

A frame of reference is a particular set of beliefs or ideas on which you base your judgment of things.

A barrier in the correct interpretation of information can occur when two observers are in different frames of reference.

Thus, the a barrier to the correct interpretation of what you hear can occur due to different frame of reference.

The complete question is below:

Which is a barrier to the correct interpretation of what you​ hear?

-Different frame of reference

-Dissimilar vocabulary

-Differing accent

-Jargon usage

-Poor explanation

Learn more about frame of reference here: https://brainly.com/question/1707361

#SPJ11

what is the index of the refraction?​

Answers

Answer:

The value of index of refraction(n) is 1.26

Explanation:

look at the attachment above

A golfer wishes to chip a shot into the hole 50m away on flat level ground. if the ball flies to a maximum height of 25m, what speed must it have initially to reach the hole?

it's grade 11 physics, so the more equations the better, thanks :d

Answers

The speed the golf must have initially to reach the hole is 31.32`1 m/s.

What is projectile?

When an object is thrown at an angle from the horizontal direction, the object is said to be in projectile motion. The object which follows the projectile motion.

A golfer wishes to chip a shot into the hole 50m away on flat level ground. if the ball flies to a maximum height of 25m.

The angle with which the ball flies,

tan θ = 25 m/ (50m/2)

tan θ =1

θ  =45°

If u is the initial speed, the maximum height of the ball is

H = u² sin²θ / 2g

Put the values, we get

25 =  u² sin²45 / (2x9.81)

u = 31.321 m/s

Thus, the initial speed is 31.321 m/s

Learn more about projectile.

brainly.com/question/11422992

#SPJ1

Which of these is most likely consequence of failing petroleum prices

Answers

More sales of traditional, large cars are the most likely consequence of falling petroleum prices.

Explanation

Since the majority of conventional, large cars employ combustion engines, these engines need petroleum fuel to operate.

As a result, Choice C—more sales of conventional, large cars—is one of the effects of dropping oil prices that is most likely to occur.

Learn more about petroleum here https://brainly.com/question/21518946

#SPJ10

The table describes the properties of four compounds.



Which compounds are most likely ionic?

Answers

compounds that are most likely ionic is NCI3

which will have longer shadow: ben whose height is 5 feet tall and 2 inches or his brother mike who is 6 feet and 2 inches when they both stand under the sun around 10am? i need help asap and anyone get my answer now i will give branliest

Answers

Answer: I believe his brother, Mike, who is 6'2, will have the longer shadow.

Al 26.98 and S 32.06 calculate the number of formula units in 62.2 g sample of aluminum sulfide

Answers

The number of formula units would be  2.5 x  [tex]10^2^3[/tex]

Formular unit

This is mathematically given as: mole x Avogadro number

Molar mass of the aluminum sulfide (Al2S3) sample = 26.98 x 2 + 32.06 x 3

= 53.96 + 96.18 = 150.14 g/mole

Mole of 62.2 g aluminum sulfide = 62.2/150.14 = 0.4143 moles

Formular unit = 0.4143 x 6.023 x [tex]10^2^3[/tex] = 2.5 x  [tex]10^2^3[/tex]

More on formula units can be found here: https://brainly.com/question/21494857

#SPJ1

what type of bulb is unaffected ​

Answers

A N S W E R :

c) Parallel

Nothing happens to the brightness of the light bulbs in the parallel circuit if the power supply is capable of supplying the additional current.

Which best describes solubility? the speed at which a substance dissolves the ability of one substance to dissolve in another the amount of surface area per a given mass the temperature at which subtances become a mixture

Answers

Answer:

The ability of a substance to dissolve into another, called the solvent.

Explanation:

That is why water is called "the universal solvent."

Because it can dissolve almost anything.

The speed and temperature have nothing to do with solubility.

Answer:

the ability of one substance to dissolve in another

Explanation:

What is the magnetic field due to a very very long wire with current A at a perpendicular distance 0.30000000000000004 m away from the wire

Answers

The magnetic field due to a  very long wire with current A is 6.67 x 10⁻⁷ A (Tesla).

What is magnetic field?

This is the region of space where the effect of magnetic force is felt.

The magnetic field due to a current carrying conductor is calculated as;

B = μI/2πd

where;

μ is permeability of free space = 4π x 10⁻⁷ Tm/AI is current in the conductord is the distance of field from the wire

at a distance of 0.3 m

B = μI/2π(0.3)

B = 0.53μI

B = 0.53 x (4π x 10⁻⁷)I

B = 6.67 x 10⁻⁷ A (Tesla)

Learn more about magnetic field here: https://brainly.com/question/7802337

#SPJ1

Look at the diagram. The electricity supplier charges 14p per unit. How much did this electricity cost over the 24 hour period

Answers

Total units

31487-3146323units

Cost°

14(23)$322

a sample contains 100 g of radioactive isotope. How much radioactive isotope will remain in the sample after 1 half-life?

Answers

Answer:

[tex]\huge\boxed{50g}[/tex]

Definition:

Half-life- The time taken for half of the radioactive isotopes to decay.

Explanation:

How does radioactive decay work? Radioactive decay is a process by which unstable nuclei become more stable through the emission of alpha or beta particles or gamma rays.

Since a half-life is the time taken for half of the isotopes to decay, we can simply divide the initial mass of 100 grams by 2; this gives us 50 grams.

1) Divide 100g by 2.

[tex]\frac{100g}{2}=50g[/tex]

You launch a model rocket that has a mass of 1.5 kg.At a height of 300m,it is traveling at 125 m/s.what is the kinetic energy at this point

Answers

Answer:

zero

Explanation:

Because if the object is not in motion then it only posseses potential energy not kinetic energy

What is the difference between a conductor and an insulator?
Select one:
O a. An insulator transfers thermal energy while a conductor does not. Insulators do not
allow thermal energy to move through them.
Ob.
A conductor transfers thermal energy while an insulator does not.
O c.
Both conductors and insulators transfer thermal energy, but not electrical energy.
One of them does not transfer energy.
O d. Both conductors and insulators transfer electrical energy, but not thermal energy.

Answers

Answer:

b

Explanation:

An insulator does not transfer thermal or electrical energy but a conductor does

Other Questions
Solve x2 3x = 8. (2 points)x equals quantity of 3 plus or minus I square root of 29 all over 2x equals quantity of 3 plus or minus I square root of 23 all over 2x equals quantity of negative 3 plus or minus I square root of 29 all over 2x equals quantity of negative 3 plus or minus I square root of 23 all over 2x equals negative 2 plus or minus 4 I square root of 2x equals negative 2 plus or minus 2 I square root of 2x equals negative 1 plus or minus 4 I square root of 2x equals negative 1 plus or minus 2 I square root of 2 Paragraph 1 Which sentence does not contribute to paragraph unity?A reason I believe in teen curfews is my concern for teens' safety. When teens stay out late, they must either drive or walk home when they are tired, when visibility is limited, and when crime rates are statistically high. Therefore, curfews help parents and communities ensure the well-being of their young people by requiring them to be home early. Although I disagree with some of the traditional consequences for violating a curfew, I feel curfews are a good thing. Teen curfews can help protect young people.Which sentence does not contribute to paragraph unity?a.When teens stay out late, they must either drive or walk home when they are tired, when visibility is limited, and when crime rates are statistically high.c.A reason I believe in teen curfews is my concern for teens' safety.b.Therefore, curfews help parents and communities ensure the well-being of their young people by requiring them to be home early.d.Although I disagree with some of the traditional consequences for violating a curfew, I feel curfews are a good thing.A is not the answer Question 2(Multiple Choice Worth 1 points)(02.02 LC)If g(x)= x + 3, find g(4).1119168 Which event resulted in the end of the Bretton Woods system?A. The United States decided to abandon the gold standard.B. The Great Depression devastated economies around the world.C. The United States experienced the second Industrial Revolution. D. Countries around the world tied their currencies to the U.S. dollar. Help me and i'll help you earn more points if the question is right ____________________ is characterized by severe chronic motor and vocal tics that is known to have a substantial genetic basis. Find ZABC00A3832 how does global warming impact animals?please answer asap help me I need this done by tonight for extra credit Which statement is symbolic of Reverend Hales change? Danforth: Marshal. Herrick stops. When did Reverend Hale arrive? Herrick: It were toward midnight, I think. Danforth, suspiciously: That is he about here? Herrick: He goes among them that will hang, sir. And he prays with them. He sits with Goody Nurse now. And Mr. Parris with him. Hathorne: Let you question Hale, Excellency; I should not be surprised he have been preaching in Andover lately. Danforth: Well come to that; speak nothing of Andover. Parris prays with him. Thats strange. Parris, prayerfully holding up his hands: Excellency, hear me. It is a providence. Reverend Hale has returned to bring Rebecca Nurse to God. all of the above Z varies directly as x and y, z=6 when x=2 and y=6 find the value of z when x=3 and y=8 Which table correctly shows all the sample spaces for tossing a coin to get heads and rolling a number on a six-sided number cube? Find the slope of the line passing through the points (3,-9) and (2, -3). Evaluate:lim h->0 ((x+h) - x) / h Describe another set of criteria that could be used to divide the United States into regions, and include which type of region it is in your description. (3-4 sentences) An Interest Only Strip holder benefits from _____ than expected prepayments, and a Principal Only Strip holder benefits from lower than expected _____. Some flowers have both male and female parts. With itself as the only parent, one of these flowers can still create offspring, this process is called ____ The Pyrenees Mountains separate this Peninsula from the rest of Europe.Select one:a. Jutlandb. Apenninec. Balkand. Iberiane. Scandinavian Students should always be _____ towards their teachers.A) GreetfulB) GreatfulC) RespectfulD) Approval An experiment consists of rolling a standard six-sided die once. Event A is "rolling a 5{}^{\prime\prime} and event B is "rolling an odd number." Are the events dependent or independent? Why? Select the option that correctly answers both questions. O Events A and B are independent, because P(B) = P(B|A) = 1/2. O Events A and B are independent, because P(A) = P(B|A) = 1/12. O Events A and B are dependent, because P(A) =/ P(B|A). O Events A and B are dependent, because P(B) =/ P(B|A).