What happens to an electromagnetic wave that is stretched or squeezed together in space?
1 answer:
You might be interested in
<h2>Answer :</h2>
□ The Final velocity of body = 45 m/s
Initial velocity of body = 0 m/s
Acceleration of body = 3 m/s²
Time taken by body = 15 sec
<h2>To Calculate :</h2>Final velocity of body = ?
<h2>How To Calculate ?</h2><h3>❒ </h3>Here in this question we are provided that a body is in rest so it's initial velocity will be 0 m/s (because from rest), Acceleration of body is 3 m/s², and Time taken is also given which is 15 sec.
<h3>❒</h3>To calculate the Final velocity of body we'll use the first equation of motion which says v = u + at
Where,
- v is the Final velocity in m/s.
- u is the Initial velocity in m/s.
- a is the Acceleration in m/s².
- t is the Time taken in second.
From first equation of motion
- ⇒ v = u + at
- ⇒ v = 0 + 3 × 15
- ⇒ v = 0 + 45
- ⇒ v = 45
Hence, the Final velocity of body is 45 m/s.
Answer:
Pressure
Explanation:
The measure of how much force is applied to an object from gas particle bouncing into it is called pressure.
Pressure is defined as the force per unit area on a body.
Mathematically;
Pressure =
The pressure of a gas is the combined force with which gas molecules bombard a unit area of the wall of the container. It is the sum of all tiny pushes on the wall of the container.
Various units of pressure are atm, mmHg, torr, pascal e.t.c