Awave is traveling at a speed of
15 m/s and its wavelength is 3 m. calculate the
wave's frequency.

What do you think car designers do if the damage caused by a crash test is too severe?

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space.b. we'll know it immediately because it will be brighter than the full moon in the sky.c. we won't know about it until 600 years from now.d. none of the above.

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?