Which object has elastic potential energy? a piece of bread a ball at rest a stretched rubber band a falling leaf

In a physics lab, a 0.500-kg cart (Cart A) moving with a speed of 129 cm/s encounters a magnetic collision with a 1.50-kg cart (Cart B) that is initially at rest. The 0.500-kg cart rebounds with a speed of 45 cm/s in the opposite direction.

What is the temperature of a metallic block in a thermal equilibrium with a mixture of ice and water at 1 atm pressure? A) 0C B) 273k. C) 0K. D) 100C

Suzanne is making a list of examples of weathering. Which of the following should Suzanne be sure to include? A. a rainstorm washes away soil from a garden. B. a sudden flood transports pebbles into a river. C.

Which statements describe a physical property of matter? Check all that apply. A cumulus cloud is puffy and white. Vinegar has a very sour smell. A mixture of baking soda and vinegar produces gas. Iron rusts when it is exposed to water.

Which of the following would decrease the magnetic field around a wire? A) decreasing the current B) reversing the poles of the wire C) looping a section of the wire into a solenoid D) increasing the current

A nuetral atom has no overall charge. Explain this in terms of its particles.

It takes a car 1.75 h to go from mile marker 115 what's the average speed of the car?

There is force of 10 Newtons between two charged particles. If one charge is doubled, what is the force now? 5 N 10 N OZN 20 N

For an isothermal process, the work done by or a system of ideals gas is equal to change in what A the work done is equal to the change in internal energy B the work is equal to the change in heat energy C the work done is equal to change in entropy

The wavelength of light is related to our perception of ... ?