An 8.0 kg ball travelling at 4m/s collides head on with a 3kg ball travelling at 14m/s . The balls bounce off each other and travel back the way they came. The 8.0 ball away at 2m/s . Calculate the velocity of the 3kg ball after the collision

For a particular reaction, ? h = -144.6 kj and ? s = -301.2 j/k. calculate ? g for this reaction at 298 k.

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.

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest