An object glides on a horizontal tabletop with a coefficient of kinetic friction of 0.5. If its initial velocity is 2.9 m/s, how long does it take for the object to come to rest?

What is a subatomic particle with a negative charge and very little mass?

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.

Metals are good conductors of electricity because they