Object A has mass 1.00 kg and is initially moving to the right at 4.00 m/s. It collides with and sticks to object B, which also has mass 1.00 kg and is initially at rest. (a) Is the total momentum of the two objects just after the collision the same as just before the collision

What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th

An athlete is holding 24 lb of weights at a height of 6 inches above the stack as shown. to lower the weights, she applies a constant force of 5 lb to the handle. determine the velocity of the weights immediately before they hit the stack.

Explain the difference in reactivity of the elements based on their electron configurations.