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3 years ago

If a runner exerts 350 J of work to make 125 W of power, then how long did it take the runner to do the work?

Physics

2 answers:

MatroZZZ [7]3 years ago

6 0

Answer:

43,750 s

Explanation:

Power= work/time

125=350/time

125 x 350 = 43,750 s

PilotLPTM [1.2K]3 years ago

5 0

225 is the correct answer

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Answer:

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Explanation:

A fixed amount of ideal gas is kept in a container of fixed volume. The absolute pressure P, in pascals, of the gas is plotted as a function of its temperature T, in degrees Celsius. Which of the following are properties of a best fit curve to the data? Select two answers.

A) Having a positive slope

B) Passing through the origin

C) Having zero pressure at a certain negative temperature

D) Approaching zero pressure as temperature approaches infinity

solution

from the ideal gas equation

PV=nRT

P=pressure

T=absolute temperature in kelvin

V=volume

R=gas constant 8.314j/molK

n=mole= mass/molecular mass

P=nRT/V

nR/V is the constant

P=nR(Tc+273)/V

plotting the graph we will discover that as pressure increases , temperature also increases . which means it's a positive graph.

Also Approaching zero pressure as temperature approaches infinity

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