Two kittens are on opposite sides of a field, 250 m apart. Kitten A runs at a constant speed of 15 m/s due east on a collision course with kitten B, which is traveling west at 10 m/s. How much time elapses before the two kittens collide?

What is the mass of the same rock on the earth

Aforklift raises a 1,020 n crate 3.50 m up to a shelf. how much work is done by the forklift on the crate? the forklift does j of work on the crate.

Which of the following best describes internal energy? a. the difference between the kinetic and potential energies of the particles in a system b. the sum of the kinetic and potential energies of the particles in a system c. the sum of the kinetic and thermal energies of the particles in a system d. the difference between the kinetic and thermal energies of the particles in a system