Which are uses of lasers? Check all that apply. scanning barcodes transmitting telephone and Internet signals examining internal body parts cutting through metals, ceramics, plastics, and cloth correcting vision problems

c)as speed changes, wavelength and frequency change.

everything changes!

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr