Answer:
A. They use X-rays that penetrate most objects.
Answer:
The mass <u>Number</u> is the number of protons and neutrons in an atoms nucleus.
We have
y=78.4 m and the distance, x=2400 m
we need to find out the time in the air, t=√2y/a
where a is 9.8 m/s²
t=√ 2*(-78.4)/-9.8 m/s²= √ -156.80/ -9.8 =√16=4s
speed of the bullet will be
v=x/t= 2400/4= 600m/s
Answer:
Explanation:
Energy is related to power by:
where P is the power and t is the time. In this problem, we have:
So, the energy used in one hour is