11. which of the following phenomena is taking place when sound waves are reflected from a surface along parallel lines? a. refracting b. absorption c. focusing d. diffusion

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?

Using gravity, an elephant can pull a mouse towards it from the ground. true or false explain why. will give brainliest if answered fast and the best explanation

In the illustration, which two simple machines are being used to enable the student to reach the door? a. inclined plane and pulley b lever and wheel-and-axle c pulley and lever d wheel-and axle and inclined plane