Answer:
Vertical component of velocity is 9.29 m/s
Explanation:
Given that,
Velocity of projection of a projectile, v = 22 m/s
It is fired at an angle of 22°
The horizontal component of velocity is v cosθ
The vertical component of velocity is v sinθ
So, vertical component is given by :
Hence, the vertical component of the velocity is 9.29 m/s
QUESTION:
Part A
The induced emf in the loop is measured to be . What is the magnitude
of the magnetic field that the loop was in?
Part B
For the case of a square loop of side length being pulled out of the magnetic field with constant speed
(see the figure), what is the rate of change of area
?
Answer:
Part A:
Part B:
Explanation:
Part A:
Faraday's law says that the induced voltage is equal to
,
which in our case(because we have only one loop) becomes
,
and since the magnetic field is uniform (not changing),
Now, we know that
therefore,
which gives us
Part B:
The area of the loop can be written as
,
where is the instantaneous length of the side along which the loop is moving.
Taking the derivative of both sides we get:
,
and since we have
where the negative sign indicates that the area is decreasing.