Answer:
In physics, electromagnetic radiation refers to the waves of the electromagnetic field, propagating through space, carrying electromagnetic radiant energy. It includes radio waves, microwaves, infrared, light, ultraviolet, X-rays, and gamma rays.
If one m³ of that material holds 4,000 kg of it,
then 0.09 m³ holds
(0.09) x (4,000) = 360 kg of it
The force of gravity acting on 360 kg of anything
on the Earth's surface is
(mass) x (gravity)
= (360 kg) x (9.8 m/s²) = 3,528
The electric field depends not on the magnetic field, but change in magnetic field. if the magnetic field is constant. electric field will be zero.
This rotation causes days. The relative position of us to the sun, and the Earth's rotation will cause the sun to appear to rise above the horizon and below, creating day and night.
Answer:
The the average magnitude of the force exerted on the ball by the floor
N
Explanation:
Given:
Mass of ball
kg
Initial speed 
Rebound speed 
Contact time interval
sec
For finding the average magnitude of the force on the ball by the floor is given by,

Here 


N
Therefore, the the average magnitude of the force exerted on the ball by the floor
N