Physics, 27.01.2020 00:31 kateykob01

A0.05-kg car starts from rest at a height of 0.95 m. assuming no friction, what is the kinetic energy of the car when it reaches the bottom of the hill? (assume g = 9.81 m/s2.)
a. 0.466 j
b. 0.308 j
c. 4.317 j
d. 0.0475 j

Answers: 2

Show answers

Another question on Physics

Physics, 22.06.2019 06:00

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

Answers: 1

Answer

Physics, 22.06.2019 12:30

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.

Answers: 1

Answer

Physics, 22.06.2019 14:30

Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.

Answers: 2

Answer

Physics, 22.06.2019 21:30

Calculate the minimum energy required to remove one proton from the nucleus 126c. this is called the proton-removal energy. (hint: find the difference between the mass of a 126c nucleus and the mass of a proton plus the mass of the nucleus formed when a proton is removed from 126c.) express your answer with the appropriate units. emin e m i n = nothing nothing request answer part b how does the proton-removal energy for 126c compare to the binding energy per nucleon for 126c, calculated using eb=(zmh+nmn−azm)c2?

Answers: 1

Answer

You know the right answer?

A0.05-kg car starts from rest at a height of 0.95 m. assuming no friction, what is the kinetic energ...

Questions