Make the following prefix conversions. 0.001s = ms

A-of 75 cm by cm by 17.5 cm up. of is 2 kg a , in ,if it is in , kg/?

A26 cm object is 18 cm in front of a plane mirror. a ray of light strikes the object and is reflected off the mirror at a 42-degree angle. what is the angle of reflection? degrees what type of image is formed? what is the size of the image? cm

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects