A block is sliding up a ramp with initial velocity of 2 m/s. iIt experiences a constant acceleration and comes to a stop after sliding 45 cm along the ramp. What was the acceleration?

Match each scenario to the form of energy it represents

Amagnetic field applies forces on: a)static chargesb)moving chargesc)water flow

An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?