Answer:
Induced emf in the rod is, 
Explanation:
Given that,
Length of the rod, L = 22 cm = 0.22 m
Angle with x axis is 37.9 degrees with the positive x-axis and an angle of 52.1 degrees with the positive y-axis.


Velocity of the rod, v = 6.8i m/s
Magnetic field, 
The formula for the emf induced in the rod is given by :


So, the magnitude of the emf induced in the rod is 0.08262 volts. Hence, this is the required solution.
Answer:
Digestion begins in the mouth, when you chew.
Explanation:
The capacitance in two parallel-plate capacitors is:

For air, we have 
For plastic, we have 
Hence:

a) Recall that the potential difference between the plates is the same (
). The electric field is given by:

The potential difference is defined as:

Replacing:

b) The energy is defined as:

So:

Answer:
states that the rate of diffusion of gases is inversely proportional to their square roots
Answer:

Explanation:
The formula for linear expansivity, 
original length, l₁ = 123 cm = 1.23 m
final length, l₁ = 92.6 cm =0.926 m
original temperature, θ₁ = 200°C
Linear expansivity, α = 2 * 10⁻⁵ °C⁻¹
Putting these values into the formula:
