Answer:
(The first law of thermodynamics) When you put a hot object in contact with a cold one, heat will flow from the warmer to the cooler. As a result, the warmer one will usually cool down and the cooler one will usually warm up. Eventually, they will reach the same temperature and heat flow will stop.
Answer:
Baby are born due to the fertilization of Owen or egg present in vigina due to the fertilization from sperms
1 cubic cm is the same as 1 mL, so the answer would be C.
Answer: 4
The mechanical advantage is the ratio of the force exerted by the object to the force applied to do work on it.
Here, Jeff tried to lift a rock weighing 600 pounds by wedging board under the rock. Jeff who weighs 150 pounds uses all his weight to exert force on lever and lift rock.
Mechanical advantage, 
Therefore, the mechanical advantage that lever provided to Jeff in lifting rock is 4.
Acceleration(a) is the change in velocity(Δv) over the change in time(Δt). so just divide your velocity and time.
