5.5m/s to 8.0m/s in 7.5 seconds. What is the average rate of acceleration of the truck

The mass of a bowling ball is 10 kg and the mass of a ping pong ball is 0.015 kg. if the two objects are 5 meters apart, what is the gravitational force ?

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.

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?