A car moving at 60 mph (27 m/s) encounters a resistive air frictional force of 200 Newtons. How much power must the engine generate to maintain this speed? If the engine is only 40% efficient, how much power is wasted in heat losses?

like poles repel so keep pushing north to north and repels funny to see this

i am pretty sure it is c because when people are closer together, they cannot move as freely. picture being in a mostly full elevator, for instance. the people are right next to you, and you can barely move.

the answer is false. this is because for ice to melt, it requires latent heat of melting. latent heat means heat energy required to change phase without any increase in temperatures. therefore, the ice will take energy from the environment to melt hence atmospheric temperatures will reduce.