Velocity B (relative to the A) = Velocity B (relative to the ground) - Velocity A (relative to the ground)
Velocity B (relative to the ground) = Velocity B (relative to the A) + Velocity A (relative to the ground)
Velocity B (relative to the ground) = 7.5 + 5 = 12 m/s
Since both go up in the same direction, we should use the minus sign for relative velocity.
Biodegradable when wood rots
like if you leave types of paper and wood or cardboard over time it will break down and enrich the soil.
same things with a compost.
Answer:
there is less mass to move so the 2kg ball will move faster. the kinetic energy of the 5kg ball will move slower due to the fact that it needs more energy to move if it has more mass.
M=2.45 because you multiply out the equation on the right and divide by 10
B. evaporation
c. condensation
They are opposite processes that involve the same transfer of energy