Jill is getting ready to push little Frank in his swing. She pulls Frank back as high as she can and then releases the swing. What is the initial transfer of energy that accelerates the swing when she lets go?

The invention of the microscope made it possible for people to discover a. plants. b. skin. c. animals. d. cells.

In what phase does water have its highest specific heat

Viscosity is the a. Tendency of a liquid to take the shape of its container. B. Resistance of an object to change its motion. C. Tendency of a liquid to take a definite shape. D. Resistance of a liquid to flow.

What is the power dissipated by a toaster that has a resistance of 60 ohms and is plugged into a 120 v outlet? show work

A sample of radium-226 will decay to ¼ of its original amount after 3200 years. What is the half-life of radium-226? years?

You and your housemate have an argument over the cost of the electric bill. You want to turn off the outside porch light before going to bed each night.

Work is a product of A force and distance B force and heat energy C cause and heat energy D cause and effect

An exploration submarine should be able to descend 1200 m down in the ocean. If the ocean density is 1020 kg/m3, what is the maximum pressure on the submarine hull?

Why cooking pans don't have have metal handles?

Why will marchers at the end of a long parade following a band be out of step with marchers nearer the band