D. it is decreased by a factor of 9.
Force = kqq ÷ r^2
The distance is squared so if it is increased or decreased by any factor, then it must be squared too. Because the distance is on the bottom of the equation, you divide the force by the increasing or decreasing factor.
Answer:
Hey
Say that there was no light on in the building that they were ch,at,tin,g in, then they could hear each other but not see each other.
Electromagnetic radiation is one of many ways as energy travels through space.
As you may already know, a wave has a valley (lowest point) and a ridge (highest point). The vertical distance between the tip of the crest and the central axis of the wave is known as amplitude. This is the property associated with the brightness, or intensity, of the wave. The horizontal distance between two consecutive crests or valleys of the wave is known as wavelength
Answer:
Solution given:
frequency[f]=60,500,000Hz
velocity[V]=300,000,000m/s
wave length=?
we have
wave length=
=
=
=4.96 m
Option A.4.96m
