Usually the unit of measurement of velocity is meters per second or m/s
Answer: Option 2
Explanation:
Option 1 is wrong because there are 2 protons and 2 neutrons in nucleus.
Option 3 is wrong because there are two electrons moving around nucleus.
Option 4 is wrong because electrons are negatively charged and are moving around the nucleus.
Option 5 is wrong because there equal amount of protons and electrons with 2 each.
I believe the answer is b) slowly heating the surface
Answer: heat
Insulation Traps Heat. Keeping the cold air out
Explanation:
The amount of force an object has will change the velocity
