A grindstone of radius 2.50 m that is spinning with a constant angular speed of 4.80 rad/s. What is the magnitude of the centripetal acceleration (in m/s2) of a point on the rim of the grindstone?

True or false graphs must include scales that increase by the same amount

Madison pushes with a 210-n horizontal force on a 24-kg crate of coffee resting on a warehouse floor. the force of friction on the crate is 74 n. what is the acceleration?

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.