A bullet is fired into a 12 kg block of wood. After the bullet
stops in the block of wood the
block has 29 J of kinetic energy. At what speed is the block moving?

Energy flows from the producer level to the level. is called

Which statements did both aristotle and ptolemy assume? check all that apply.

You are your friend move a new refrigerator into his kitchen. you apply a horizontal force of 252 n in the negative x direction to try and move the 56 kg refrigerator. the coefficient of static friction is 0.61. (a) how much static frictional force does the floor exert on the refrigerator? give both magnitude (in n) and direction. magnitude n direction (b) what maximum force (in n) do you need to apply before the refrigerator starts to move?