Answer:
<h2>9.3kN</h2>
Explanation:
Step one:
given data
mass of bullet= 0.02kg
speed v=700m/s
time taken =1.5ms= 0.0015 seconds
Step two:
we know that from the first law
F=ma-----1 first law of motion
also, we know that
a=v/t----2
put a=v/t in equation 1 we have
F=mv/t
Step three:
substitute our given data to find force
F=0.02*700/0.0015
F=14/0.0015
F=9333.33N
F=9.3kN
<u>The average force exerted is 9.3kN</u>
In the question where as a model rocket is launched straight upward with an initial speed of 50.0m/s and it accelerate with a constant acceleration of 2m/s^2 until it engines stop at an altitude od 150. So the following are the answer to your question:
a.The motion, the acceleration was equals to Zero
b.the maximum height is 150m
Hydroelectric dams convert the gravitational potential energy of falling water into electricity.
I think the correct answer from the choices listed above is option D. The force most responsible for holding the nucleus of an atom together is the strong nuclear force of attraction between particles in the nucleus. It <span>is also </span>responsible<span> for binding the quarks and gluons into protons and neutrons. </span>
Answer:
Absence of light causes shadow
Explanation:
The shadow is of the black colour because it is formed by the white light from the sun. Black is the opposite colour of white. In case you use different colour of light to cast a shadow you will get a shadow of opposite colour of light used to cast shadow.
