Refer to the diagram shown below.
The input force of 20 N should use the effect of the lever to lift the weight W on the other side of the fulcrum. Therefore the output force is equal to the weight lifted.
Moment balance about the fulcrum yields
W*0.5 - Fin*2 = 0
Because the output force is equal to W,
Answer: The output force is 80 N
Answer:
Explanation:
We are given that
Energy difference,
We have to find the magnitude of B.
Bohr magneton=
We know that magnetic field ,B=
By using the formula
Hence, the magnitude of B=
If you're using the bulb as a source of light, then it's. 14/60 = 23.3% efficient.
If you're using it to heat a bird nest or a hamster cage, then it's. 46/60 = 76.7% efficient !
It just depends on your point of view, and what you consider 'useful' output.
Answer:
Please see list of answers below
Explanation:
If the FORCE applied to the car doubles, then following the equation F = m * a , the acceleration will DOUBLE as well.
The mass of the car stays the SAME.
And the velocity of the car will INCREASE with time based on the formula of kinematics of an accelerated object:
v(t) = vi + a * t