I pretty much know how to solve this problem, but I have a simple question.
The question asks a charge of +45 uC (u is coefficient of friction and C is Columb). Now what would that translate into scientific notation?
Because I know 3 uC equals 3.0 x 10^-6, but what about double figures? Thanks
yeah I know P = W/T
for #2, I have this answer written down which is C but I don't know how I got it because I just punched numbers into the calculator omg I'm so screwed
How do you do these problems:
1) What is the magnitude of the force required to accelerate an electron of mass 9.1x10^-31 kg from rest to a speed of 2.0x10^7 m/s for a distance of 0.5 cm
(a) 1.8 x 10^-21 N
(b) 9.0 x 10^-19 N
(c) 1.8 x 10^-16 N
(d) 3.6 x 10^-14 N
2) In an elevator system, a...