Answer:
B) 6 W
Explanation:
First of all, we need to find the work done by the force. This is given by
where
F = 4 N is the magnitude of the force
d = 3 m is the distance through which the force is applied
Substituting,
Now we can find the power, which is given by
where
W = 12 J is the work done by the force
t = 2 s is the time taken
Substituting,
Answer
Correct Answer is
6 m/s^2
Explanation
in this question we have given
Force=12N
mass of oject=2kg
we know that
force= mass* acceleration
therefore,
acceleration=Force/mass.............(1)
Put values of mass and force in equation 1
It becomes thermal energy
this heat is produced by tiny particles moving within an object
Answer: energy will be transferred from the warmer object to the cooler one. The movement of thermal energy from a substance at a higher temperature to one at a lower temperature is called heat. When a substance is heated, it gains thermal energy.
Explanation: