Depends on how strong you are. People can hit it anywhere between a few inches and 500 yards.
Answer:
50 N
Explanation:
Since the refrigerator doesn’t move, that means the force of friction equals the amount of force the child exerts on the fridge. If the friction force were greater than the force by the child, the fridge would start accelerating towards the child. If it were less than the force the child exerted, the fridge would start accelerating away from the child. Therefore, the net force must be 0, in this case, the friction force is equal to the force the child exerted, for it to stay at rest (as Newton’s First Law stated).
I hope this helps! :)
Answer:
2.30714 W
-16.38071 W
Explanation:
k = Heat conduction coefficient = 0.8 W/(m·°C)
A = Area = 2907 cm²
l = Thickness = 5.6 mm
= Outside temperature
= Inside temperature
Rate of heat transfer is given by
The rate of energy transfer is 2.30714 W
The rate of energy transfer is -16.38071 W
The speed of sound is 340.29 meters per second.
Knowing that, we can calculate how high this cliff is by 340.29 * .4
The cliff is 340.29 * .4 = 136.12 meters
Answer:
power=400Watt
Explanation:
work done =12kJ=12×10³=12000j
time taken=30s
power=?
as we know that
power=work done/time taken
power=12000J/30s
power=400Watt
i hope this will help you :)
