Not enough information given to nail down an answer. 'Work' in physics is defined as force acting through a distance. The question says nothing about the forces on the Baseball, and doesn't tell us anything about the direction of the 30-meters' travel, which we could use to calculate the work done on it by gravity.
125
It is the energy expended by a mechanical force acting over a distance.
The power during the lift is (weight of the barbell in Newtons)/4.4 watts.Note:Power is not "expended". Energy is. Power is the rate at which energy is expended.
No. A light year is a measure of distance. It is the distance light travels in a year.
It means the same as spent. Money which is expended is spent. A battery which is expended is spent; it has been used up.
hey bro, energy becomes kinetic :)
Energy expended to work done
energy
Expended by someone else
energy
Calorie
?