The relationship between wavelength, frequency and speed of an electromagnetic wave is
where
is the wavelength of the wave
c is the speed of light
f is the wave's frequency
The wave in this problem has frequency
, so its wavelength is
Answer: 1: (A) They allow electrons to move freely between them. 2: (C) they change their positions relative to one another.
Explanation:
Answer:
Tbc = 230.69 N ; Fac = 172.31 N
Explanation:
Sum of forces in y direction:
Sum of forces in x direction:
Solving Eq 1 and Eq 2 simultaneously:
Answer: Tbc = 230.69 N ; Fac = 172.31 N
The frequency of the
scattered photon decreases or it will be lower compare to the frequency of
incident photon. An x-ray photon scatters in one direction after a collision
and some energy is transferred to the electron as it recoils in another
direction resulting to have less energy in the scattered photon. In addition, the
frequencies will also depend on the differences of the angle at which the
scattered photon leaves the collision and this incident is called Compton Effect.
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. It behaves exactly like a permanent magnet, like those magnets commonly used to stick items to our fridge.
To make a permanent magnet we need:
- One iron nail ( Could be fifteen centimeters (6 in) long
)
- Three meters (10 ft) of copper wire
- One or more D-cell batteries
To make the electromagnet, we need to:
1. Wrap the Wire Around the Nail
2. Connect the Battery
And you are all set!