The net force on the propeller of a 3.2 kg model airplane is 7.0 N forward. 10 points What is the acceleration of the airplane?
22.4 m/s^2
2.2 m/s^2
0.46 m/s^2
72 m/s^2

Iflow from a warmer object to a cooler object until both objects are the same temperature what am i?

A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?

The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6−0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.