A ball rolls down the street 9 meters in 3.5 seconds, what is it's average speed?

There are two routes similar in terrain; however, one route has an incline of approximately 28 degrees, and you must decide on which route to take. what is the maximum road grade that your fully loaded ecv can climb?

Give an example in which the electrical energy changes to light energy

Amajor difference radio waves, visible light, and gamma rays is the of the photons, which results in different photon frequencies and wavelengths