You take the same 3 kg metal block and slide it along the floor, where the coefficient of friction is only 0.4. you release the block with an initial velocity of 6 m/s. how long will it take for the block to come to stop? how far does the block move?

Discuss how the hardness or softness of the landing surface is related to the time required to stop the egg

Select all the correct answers. which three statements about electromagnetic radiation are true?

Two identical stars with mass m orbit around their center of mass. each orbit is circular and has radius r, so that the two stars are always on opposite sides of the circle. (a) find the gravitational force of one star on the other. (b) find the orbital speed of each star and the period of the orbit. (c) how much energy would be required to separate the two stars to infinity?