Answer:1265 N
Explanation:
Given
acceleration of motorcycle 
Velocity 
Air friction and Friction
mass of the motorcycle with rider
Applying Forces on motorcycle




Ng seismic and translational waves we get the law of michio kaku.
Answer: B
Explanation:
It's not the time it took to heat the substance, so that rules out A and C.
This means that we only have to choose between
B. the area of contact
D. the area of the substances
(since everything else in each of those answers are the same)
Area of contact matters more (e.g. an object with greater surface area is exposed to the air more, will lose/gain heat quicker than an object with less surface area).