Gas because that’s what the periodic table says
First we need to find the voltage difference between the initial and final location of the electron.
Since the electron travelled for a distance d=5 m in an uniform electric field of intensity E=300 N/C, the voltage difference between the final and initial location is
And then, we can calculate the change in potential energy of the electron, which is the product between the charge of the electron and the voltage difference:
And the negative sign is due to the fact that we assumed the electron traveled in the natural direction of the electric field, so traveling from a point at lower voltage to a point at higher voltage (the sign of
is positive), so since it's a negative charge the electron is losing potential energy.
Answer:
The value in m/s
The value in km/h
Explanation:
Generally the average velocity of the helicopter is mathematically represented as
substituting and 30.0 s for t
We have
=>
Now converting to km/h
=>
Answer:
Experiments showed that increasing the light frequency increased the kinetic energy of the photoelectrons, and increasing the light amplitude increased the current.
Explanation:
The photocurrent increases linearly with the intensity of the incident light but is independent of its frequency. The stopping potential increases linearly with the frequency of the incident light but is independent of its intensity.