The 10­-kg block rests on the smooth incline. if the spring is initially stretched 0.5 m, determine the total work on the block when a horizontal force pushes the block up the plane s = 2 m. how does the work done by a spring force change with the spring constant?

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.

What structural formula represents 4 electrons shared between two atoms?

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.