a particle with a charge of 5.5 x 10^-8 c is 3.5 cm from a particle with a charge of - 2.3 x10^-8 c. the potential energy of this two particle system relative to the potential energy at infinite separation is:

How does the gravity which pulls the moon and earth toward each other also affect the ocean?

What is the best description of a convergent boundary? (Do they move towards eachother, side by side past each other, away from each other, or are they attracted to each other by gravity)

Which device uses AC current to operate? A. locomotive train B. desktop computer C. car D. portable media player E. flashlight

Can you separate standards from testing?

A pencil has a mass of 35g. What is the pencil's weight in Newtons?

What kind of change is salt dissolving in water

Which of these is the most effective way for manny to cool down after kickboxing? start static stretches to increase his flexibility walk around to lower his heart rate sit and catch his breath to avoid light-headedness run one to three miles to

One of the driving forces of plate motion is: A. volcanic eruptions along coastlines B. meteor impacts in the ocean basins C. convection currents in the mantle D. hot liquid magma in the inner core

Which element is required for the combustion of fossil fuels? nitrogen hydrogen oxygen carbon

When air pressure is lower what happens to a balloon filled with air