Given the electric flux density, D=0.3r^2 ar nC/m^2 infree space, find total charge wothin the sphere r=3

Which statement best describes the weather shown by the blue triangles on a line on a weather map? A cold front can cause heavy rain, thunder, and lightning. A warm front brings drizzly weather.

Which terrestrial planet has the longest year? A. Mars B. Earth C. Venus D. Mercury

An earthquake is what happens when two blocks of the earth suddenly slip past one another. The surface where they slip is called a A) fault. B) epicenter. C) foreshock. D) tectonic plate.

In what situation will mass change?

In a series circuit, what is the same in each circuit element

David walks 3 km north, and then turns east and walks 4 km

In a Millikan oil-drop experiment, the charges on several different oil drops were as follows: - 5.92; - 4.44; - 2.96; - 8.88. The units are arbitrary.

A person riding on the roof of a freight train throws a ball forward. (a) If we ignore air drag and relative to the ground, is the ball moving faster or slower when the train is moving than when it is standing still?

Determine which factors will increase the reaction rate and which factors will decrease te reaction rate.

Read the paragraph below from the section "An Object At Rest Has Potential Energy Potential energy is the energy an object rgy is the energy an object has because of its position. It is energy that is waiting to be released.