Radioactive "decay" means particles and stuff shoot OUT of a nucleus.
After that happens, there's less stuff in the nucleus than there was before.
So the new mass number is always less than the original mass number.
Answer: Rolling Friction
Explanation:A rolling ball stops because the surface on which it rolls resists its motion. A rolling ball stops because of friction.
Answer:
Explanation:Newton.s law of cooling states that the rate of cooling of an object is proportional to the difference between its own temperatures and temperature of its surroundings. Mathematically,
where is the heat transfer
is heat transfer coefficient
is the heat transfer surface area
is the temperature of the object's surface
is the temperature of the surroundings
I believe the answer would be, refractor type telescopes because these are best used for planetary observations.
Answer:
Explanation:
Given:
ΔT
So the power the air conditioner do first determine the heat that removed
Now that heat in the time the air take to remove the heat
Finally that power drawn can be find by the power and the COP is knowing