Where does the energy come from?

What is the acceleration of a 2,000 - kilogram truck if a force of 4,200. N is used to make it start moving forward?

What force is needed to accelerate a child on a sled (total mass=60.0kg) at 1.50m/s^2?

A 4.0 kg bird has 8.0 joules of kinetic energy how fast is it flying

If you throw a red stone into the blue sea what it will become?

The isotope of an atom contains 40 protons and 51 neutrons suddenly has two neutrons added to it. What isotope is created? 1. Antimony-39 2. Zirconium-93 3. Antimony-53 4. Zirconium-53

All of the following describe climate except it is hot today the average temperature of a place the average precipitation of a place the average number of sunny days of a place

A 55 kilogram person jumps off a cliff and hits the water 5.8 seconds later, how high is the cliff above the water?

The force that is most responsible for the stability of the atomic nucleus is: A.) gravityB.) electromagnetismC.) strong nuclear force D.) weak nuclear force

when two object P and Q are supplied with the same quantity of heat, the temperature change in P is observed to be twice that of Q. The mass of P is half that of Q. The ratio of the specific heat capacity of P to Q

Why do we say energy is the ability to do work