Answer:
E. It will decrease because the charge will move in the direction of the electric field.
Explanation:
The electric potential energy decreases uniformly as the charge move away in the direction of the field. Since a positive charge that experiences a force in the direction of an electric field increases its kinetic energy at the expense of its electric potential energy.
The average angular acceleration of the fan is
The number of revolutions after time is given by
Acceleration is assumed to be constant, so and over the 2 second interval we have
so the answer is A.
Answer:
.17Hz
Explanation:
The formula for frequency is f= 1/T , where T is the period.
f = 1/6 and 1/6 ≈ .17
Answer:
767.2 nm
Explanation:
The optical path for the reflection for the inner surface is:
For maximum wavelength, this distance has to be traveled doubled (The ray is normally incident). So,
Given that:
Thickness = 140 nm
So, wavelength is:
<u>Wavelength is 767.2 nm</u>
Carl Sagan and biologist Harold Morowitz