*please help fast**15 points* How is laser light different from the light produced by a flashlight?

A. The crests of laser light waves align with one another.
B. Lasers produce multiple wavelengths of light.
C. Lasers produce light that is incoherent
D. Flashlights use reflecting mirrors and lasers do not.

B.

Explanation:

Laser light is different from normal light in other ways as well. First, its light contains only one wavelength (one specific color). ... Whereas a laser generates a very tight beam, a flashlight produces light that is diffuse. Because laser light is coherent, it stays focused for vast distances, even to the moon and back

D

Explanation:

the rest do not explain the flashlight

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s