Answer:
90 W
Explanation:
The power of the light bulb is given by:

where
V is the voltage of the bulb
I is the current through the bulb
In this problem,
V = 120 V
I = 0.75 A
Substituting into the equation,

The formula for the momentum is
p = mv
As a consequence of the conservation of energy, there is also the law of conservation of momentum.
So,
Δp = Δmv = mΔv
The maximum precision that the position can be ascertained is less than 100% because of dissipation.
Half mass car because it's traveling faster
That's the definition of the property called "density".