A human hair has a thickness of about 70 micrometers. How many meters is this?
O A. 70 x 10-3 m
B. 70 x 10-6 m
C. 70 x 10-9 m
O D. 70 x 10-2 m
SUBME

The radius of a sphere is increasing at a rate of 9 cm/ sec. find the radius of the sphere when the volume and the radius of the sphere are increasing at the same numerical rate.

Aprotein molecule in an electrophoresis gel has a negative charge. the exact charge depends on the ph of the solution, but 30 excess electrons is typical. what is the magnitude of the electric force on a protein with this charge in a 1600n/c electric field? write in two significant numbers, and also in newton

What is an electric motor? explain its operation. 2-3 sentence