Answer:
Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. Radio waves have frequencies as high as 300 gigahertz (GHz) to as low as 30 hertz (Hz).
Explanation:
A person is attracted towards the center of Earth by a 440 N gravitational force. The force with which Earth is attracted toward the person is <u>440 N</u>.
<u><em>Reason</em></u><em>: If you were to consider Newton's third law, it says for every action, there is an equal and opposite reaction. That means if the earth exerts a 440N force on the human, then the human will exert a 440N force on the planet.</em>
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p.s. Newton's three laws would be very helpful to know for these sorts of conceptual questions that involve forces
Power is the scientific term defined as the rate at which
work is accomplished. Power can be seen everywhere as it is applied to our
everyday living. Power is seen when one pushes a heavy cart. It could be seen
when a baseball hitter hits the ball.
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To solve this problem we will apply the concept related to the electric potential energy, defined from the laws of Coulomb for which it is necessary to,
Here,
k = Coulomb's constant
= Charge of each object
r = Distance,
Our values are given as,
Finally replacing we have that,
Therefore the energy necessary to move the particle is 0.27J