To develop this problem we will proceed to use the principle of energy conservation. For this purpose we will have that the change in the electric potential energy and kinetic energy at the beginning must be equal at the end. Our values are given as shown below:
Applying energy conservation equations
Replacing,
Solving for v,
Therefore the speed of each sphere at the moment they collide is 5.4m/s
Answer:
8.975 m/
Explanation:
Travel starting velocity (u) = 34.8 m/s
Achieved (final) velocity = 214.3 m/s
Travelling time(t) = 20 s
we know that, v =u +at
; where v= final velocity
u=start velocity
a=acceleration
t=time
Therefore,
His acceleration, a = (v-u)/t
=(214.3-34.8)/20
= 8.975 m/
If C.) is meant to be refraction, it's C.)
Answer: Electromagnetic radiation
Explanation:
Electromagnetic radiation is a combination of oscillating electric and magnetic fields, which propagate through space carrying energy from one place to another.
To understand it better:
This radiation is spread thanks to the electromagnetic fields produced by moving electric charges and their sources can be natural or man-made.
It should be noted that the energy of electromagnetic radiation can vary and depending on its frequency it can be useful for various situations.
