All light waves move through a vacuum with a constant speed. True or False
1 answer:
You might be interested in
Let's convert the quantities in SI units first.
The force exerted by the horse is
and the distance covered is
Therefore, the work done by the horse is equal to the product between the force applied and the distance:
The force exerted by the horse is
and the distance covered is
Therefore, the work done by the horse is equal to the product between the force applied and the distance:
Answer:
<u>18000 J</u> is the work can do by the motor.
Explanation:
If an electric motor works for 12 seconds and the power output is 1.5 KW = 1500 Watts we need to find how much work can an electric motor does.
We know that,
“Power” is defined as the “rate” of doing “work”, the “energy” transferred or converted per unit time. Mathematically,
Where, units of power is “Watt”, units of work is “Joule” and time in “seconds”.
Substitute the given values to find work
1500 × 12 = work
Work = 18000 Joules
Therefore, work can done by an electric motor is <u>18000 J</u>.