Two objects with identical masses, m1 and m2, have an elastic collision. The initial velocity of m1 is +20 m/s and of m2 is +9.0 m/s. After the collision, what will be the velocity of m1?

Using the given data table, calculate the acceleration of the skateboarder. you can use either form of the equation below?

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

Aquantity of gas has a volume of 1.5 m3 and an absolute pressure of 95 kpa. when the gas is compressed to a volume of 0.5 m3, what is the new absolute pressure of the gas? (assume that there’s no change in temperature.)