Georgie was pulling her brother (of mass 16 kg) in a 9.4 kg sled with a constant force of 39 N for one block (128 m). How much work did Georgie do? Answer in units of J.

A car is raised a certain distance in a service-station lift, thus giving it potential energy relative to the floor. if it were raised twice as high, how much more potential energy would it have?

Short note on types of errors

Uranium 235 can be split if it is hit by: a neutron a proton an electron a neutrino

Two waves equal amplitudes meet other result in a wave with zero amplitudes. Which phenomenon

A restaurant decides to test their oven's thermostat to see if it is working properly, that is, if the actual temperature inside the oven is the same as the temperature to which the thermostat was set.

Ways that charges can be transferred

If you drive at 100 km/hr for six hours how far will you go

Chemical bonds are formed from the attractive force of atoms for electrons. What is the force called?

How resistance, current, and voltage behave in a series circuit.?

A father racing his son has 1/3 the kinetic energy of the son, who has 1/2 the mass of the father. The father speeds up by 1.4 m/s and then has the same kinetic energy as the son. What are the original speeds of (a) the father and (b) the son