Physics, 20.11.2020 20:40, biba54

A ball rolls across the floor. Because of friction, the ball will eventually slow down and come to a stop. Which of the following is evidence of energy transfer resulting from the change in the motion of the ball?
Different surfaces create different amounts of friction.
The ball moves in the same direction as it rolls across the floor.
Energy sets the ball in motion.
The ball and the floor gain a small amount of heat energy.

Answers: 2

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 16:00, amoakoh800003

As shown in fig. p3.64, a closed, rigid tank fitted with a fine-wire electric resistor is filled with refrigerant 22, initially at 2108c, a quality of 80%, and a volume of 0.01 m3. a 12-volt battery provides a 5-amp current to the resistor for 5 minutes. if the final temperature of the refrigerant is 408c, determine the heat transfer, in kj, from the refrigerant.

Answers: 1

continue

Physics, 22.06.2019 14:30, gus2006santos

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

continue

Physics, 22.06.2019 22:00, petroale000

Awhite-blue star is hotter than a red star. select the best answer from the choices provided true or false

Answers: 2

continue

Physics, 22.06.2019 23:30, roman2328

When barack obama was running for president, at a campaign stop he tried to bowl, something he isn't very good at. the media loved it because he threw a gutter ball while they were all watching. this is an example of:

Answers: 2

continue

Do you know the correct answer?

A ball rolls across the floor. Because of friction, the ball will eventually slow down and come to a...