You do work on something when you lift it against gravity. If the lifted object is released, what becomes of this energy? Be sure to define all terms that you use.

If a machine has an efficiency of 50 percent and an MA of 3, what is its IMA?

What must exist for electric charges to flow? electric potential or electric potential difference

Which of the following is a false statement about dispersion forces? View Available Hint (s) Which of the following is a false statement about dispersion forces?

A system expands by 0.91m3 at a constant pressure of 105 kPa. (a) Find the heat that flows into or out of thesystem if its internal energy increases by 91 J.

Write an Hypothesis whether land or water heats faster

Which of these rocks are formed by volcanic activity? select the two correct answers. a. marble b. basalt c. limestone d. granite e. sandstone

Which source is most likely an authority on the subject? Dr. Vale, a pediatrician, discusses electrical circuitry on her home-improvement website. Jonah, an amateur cook, teaches his son how to make the best grilled cheese sandwiches.

What methods can be used to break down substances into elements

8. A gas is contained in a horizontal piston-cylinder apparatus at a pressure of 350 kPa and a volume of 0.02 m3. Determine the work done by the piston on the gas if the cylinder volume is increased to 0.15 m3 through heating.

A 75.0 kg person stands on a scale in an elevator. (a) What does the scale read (in N and in kg) when the elevator is at rest?