A 1. 2-kg object moving with a speed of 8. 0 m/s collides perpendicularly with a wall and emerges with a speed of 6. 0 m/s in the opposite direction. If the object is in contact with the wall for 2. 0 ms, what is the magnitude of the average force on the object by the wall?.

Which characteristic demonstrates a healthy self-esteem? accepts others does not listen well seeks constant approval frustrates easily

Earth's atmosphere is unique among the planets and is able to support life because it contains a large amount of a) oxygen b) helium c) methane d) carbon dioxide

Luminous objects such as flashlights emit light that we can see. how do we see an object that isn’t luminous? a. the object emits light that reaches our eyes. b. light reflects off the object and reaches our eyes. c. light passes through the object uninterrupted. d. light is fully absorbed by the object. e. we can’t see an object that isn’t luminous.