Now, assume the two balls are losing charge to the air very slowly. that means they'll be slowly approaching each other. if a ball is moving at an instantaneous speed of 5.60e-5 m/s, at what rate is the ball losing charge?

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

In this thread, i would like you to comment on the nature of light and how operation of telescopes. light has a duality of a particle and a wave; which one affects your life? also how does light interact with optics inside telescopic systems? answer these questions in two paragraphs. then respond the another students response.

If water vapor with the mass of 35.0 grams is cooled and condensed into water in a closed system such as a closed glass jar, what is the mass of the water after the water vapor completely condenses? a) 34.5 grams b) 35.0 grams c) 35.5 grams d) the mass cannot be determined without knowing the volume