A block connected to a horizontal spring is in simple harmonic motion on a level, frictionless surface, oscillating with amplitude A around x = 0. Identify whether each of the following statements is true or false:

(a) If x = ±A then |v|=|vmax| and |a|=|amax|.
(b) If x = 0 then |v|=|vmax| and |a|= 0.
(c) If v > 0 then a < 0.
(d) If x > 0 then a < 0.
(e) If x > 0 then v > 0.

temp rises, and expansion

not too sure thinking all accelerations are pointed down

answergravity;

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.