15. A kitten is sitting stationary on a skateboard. The kitten has a mass of 1.25 kg, and the skateboard has a mass of 3.5 kg. If the kitten remained on the skateboard while being pushed, what force would be
required to achieve an acceleration of 2.0 m/s2? Ignore friction.

A0.750 kg aluminum pan is removed from the stove and plunged into a sink filled with 10.0 kg of water at 293 k. the water temperature quickly rises to 297 k. what was the initial temperature of the aluminum pan? the specific heat of aluminum is ca = 900 j/(kgk) and water is cw = 4190 j/(kgk)

How many atoms of nitrogen are in the chemical formula ni(w on

As the distance from a magnet increases, what happens to the magnet force?