2. a 4.0 kg ball moving to the right at 1.2 m/s collides inelastically with a 1.0 kg ball at rest. what will the velocity of the combined balls be after the collision?
3. an object is lowered into a deep hole in the ground. how does the potential energy of the object change?
4. a real spring does not oscillate forever. instead, it eventually comes to a stop. does this violate the law of conservation of energy? explain why or why not.
5. a boy can raise a rock that weighs 100 n by using a lever and applying a force of 20 n. what is the mechanical advantage of the lever?
Answers: 1
Physics, 21.06.2019 15:30, stinematesa
A1kg cart slams into a stationary 1kg cart at 2 m/s. the carts stick together and move forward at a speed of 1 m/sl. determine whether kinetic energy was conserved in the collision. use the law of conservation of energy to explain the collision
Answers: 3
Physics, 22.06.2019 09:00, kiarajack456
Why can blue light and yellow light combine to produce white light? question 17 options: they are both primary colors of light. they absorb each other's wavelengths. because blue, yellow, and white are primary colors. they are complementary colors of light.
Answers: 1
2. a 4.0 kg ball moving to the right at 1.2 m/s collides inelastically with a 1.0 kg ball at rest. w...
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