Physics, 09.04.2020 05:22 Babygirljay1540
A student combs his hair with a plastic comb, and the hair becomes positively charged. What is the net charge of the comb and the hair and the direction of the charge
transfer?
A.)Protons move from the comb to the hair, and the total charge of the hair and the comb is positive.
B.)Electrons move from the hair to the comb, and the total charge of the hair and the comb is negative.
C.)Protons move from the comb to the hair and the total charge of the hair and the comb is zero.
D.)Electrons move from the hair to the comb, and the total charge of the hair and the comb is zero.
Answers: 1
Physics, 22.06.2019 05:40
Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.
Answers: 3
Physics, 22.06.2019 18:00
The protons in a nucleus are approximately 2 ✕ 10^−15 m apart. consider the case where the protons are a distance d = 1.93 ✕ 10^−15 m apart. calculate the magnitude of the electric force (in n) between two protons at this distance.
Answers: 1
Physics, 22.06.2019 23:00
Which of the following will cause an induced current in a coil of wire? the constant field of the earth passing through the coil a magnet resting near the coil a magnet being moved into or out of the coil a wire carrying a constant current near the coil
Answers: 3
Physics, 23.06.2019 00:30
What is the largest meteoroid that has collided with this planet
Answers: 1
A student combs his hair with a plastic comb, and the hair becomes positively charged. What is the n...
Mathematics, 04.04.2020 11:57
Advanced Placement (AP), 04.04.2020 11:57
Mathematics, 04.04.2020 11:57
English, 04.04.2020 11:58
English, 04.04.2020 11:58