Apiano has a mass of 185 kg, and the coefficient of friction between it and the floor is 0.39. what is the maximum force of friction between the piano and the floor?

707 n
523 n
1813 n
1208 n

If the temperature were raised very high, classically what would we expect the heat capacity per object to be for this one-dimensional system? give a numerical value. chigh t = __ j/k/object (one reason for the discrepancy is that the high-temperature limit assumes that the number of oscillators is large (n > > 1), which is not the case in this tiny system.)

What are similarities and differences of reflection, refraction, diffraction and absorption?

An open cart is moving along a straight frictionless horizontal track. when rain starts falling vertically into the cart, what happens to the speed of the cart?