Physics, 01.02.2021 22:30 xcoder1732

A. A person does 5415J of work in 4.5 minutes, how much power, expressed in watts, rounded to the tenths place, was generated? B. Calculate the potential energy of an object whose mass is 56.90kg when dropped from a height of 2150.cm. Round your answer to the nearest tens place.
C. Calculate the kinetic energy of an object with a mass of 355g moving at a velocity of 7.73 m/s. Round your answer to the nearest tenths place.
D. What is the total energy of a system with KE = 1368 J and a PE = 5782J? Express your answer in kJ.

Answers: 2

Show answers

Another question on Physics

Physics, 22.06.2019 02:00

The crank oa rotates in the vertical plane with a constant clockwise angular velocity ω0 of 5.6 rad/s. for the position where oa is horizontal, calculate the force under the light roller b of the 10.6-kg slender bar ab.

Answers: 2

Answer

Physics, 22.06.2019 12:10

Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f

Answers: 2

Answer

Physics, 22.06.2019 14:00

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration

Answers: 1

Answer

Physics, 22.06.2019 14:30

The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.

Answers: 1

Answer

You know the right answer?

A. A person does 5415J of work in 4.5 minutes, how much power, expressed in watts, rounded to the te...

Questions