You push on your friend's car until you give it 3000 J of kinetic energy. How much work did you do?

Aprojectile is launched from ground level with an initial velocity of v 0 feet per second. neglecting air resistance, its height in feet t seconds after launch is given by s equals negative 16 t squared plus v 0 t. find the time(s) that the projectile will (a) reach a height of 192 ft and (b) return to the ground when v 0equals112 feet per second. (a) find the time(s) that the projectile will reach a height of 192 ft when v 0equals112 feet per second. select the correct choice below and, if necessary, fill in the answer box to complete your choice.

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value

Most short-period comets do not have randomly oriented orbits because