Answer:
As an object falls from rest, its gravitational potential energy is converted to kinetic energy.
Explanation:
It converts to kinetic energy because it is moving
Answer:
Blood is moved away from the brain
Explanation:
Took the test
*size
*shape
*temperature
*compostion
Answer:
Minimum uncertainty in velocity of a proton,
Explanation:
It is given that,
A proton is confined to a space 1 fm wide, 
We need to find the minimum uncertainty in its velocity. We know that the Heisenberg Uncertainty principle gives the uncertainty between position and the momentum such that,

Since, p = mv





So, the minimum uncertainty in its velocity is greater than
. Hence, this is the required solution.