Answer:
e = 1.21 mV
Explanation:
given,
length of rod = 10 m
height of drop = 4.89 m
Earth’s magnetic field = 12.4 µT
acceleration of gravity = 9.8 m/s²
velocity of the beam


v = 9.79 m/s
emf of the beam
e = B l v
e = 12.4 x 10⁻⁶ x 9.79 x 10
e = 1.21 x 10⁻³ V
e = 1.21 mV
Answer:
The net magnetic flux through the rest of Earth's surface is 
Explanation:
Given that,
Magnetic field = 42 μT
Area 

We need to calculate the flux per unit area

We need to calculate the total earth's surface area



We need to calculate the rest of earth's area

Put the value into the formula


We need to calculate the net magnetic flux through the rest of Earth's surface


Hence, The net magnetic flux through the rest of Earth's surface is 
The answer is: 12.30 degrees.
To solve this problem you must apply the proccedure shown below:
1. You run 22 meters horizontally and then you climb a rope vertically for 4.8 meters.
2. So. let's call the angle
, therefore, you must find it using
, as following:

3. Substitute values and solve for the angle:
