Three students independently measure the time it takes for a ball to roll down the hallway. They record following times. Calculate the average and uncertainty with units. 17.33s 18.67s 15.98s Average w/uncertainty +/-kg

Is it possible to use the energy from two atoms colliding to create a clean burning lasting fuel source with a large amount of force? is it also possible to harness that energy from the two atoms colliding to create a clean energy source that will last for years from just two atoms colliding. is there a possibility to control and store that energy for years but slowly let the energy out enough to power cities cheaper and faster.

Brutus, the dog, is pulling a bone to the left with a force of 20 n. lassie, another dog, is pulling a bone to the right with a force of 18n. what is the net force? a. b. c.

Sound is a disturbance that travels through a medium as a