C.half the energy is carried by the electric field and half is carried by the magnetic field.
C.
Explanation: Because mirrors are lighter, and they are easier than lenses to make perfectly smooth.
Answer:
7.9m/s
Explanation:
We are given that
Mass of wagon=40 kg
Tension=
Initial velocity of wagon=
Displacement=s=80 m
Net force applied on wagon=
By using
We know that
Using the formula
Answer: 735 N
Explanation:
Weight is a measure of the gravitational force acting on an object and is directly proportional to the product of the mass of the body by the acceleration of gravity :
In the case of our planet Earth, the acceleration due gravity is . So for a man whose mass is , his weight is:
Well, if the salt that Gerry's looking at under a powerful microscope has a crystalline structure, then that's saying that salt is technically a solid.
(I hope that this is an answer you were looking for)