Answer:
3.53 second
Explanation:
The formula for the height is
When it hits the ground, the height is zero.
So, put h = 0 in the above equation
Take positive sign
t = 3.53 second.
Thus, the time taken to hit the ground is 3.53 second.
Calculate the density of a tin of mass 100g whose dimensions are 2cmx5cmx
1 answer:
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I guess the problem is asking for the induced emf in the coil.
Faraday-Neumann-Lenz states that the induced emf in a coil is given by:
where
N is the number of turns in the coil
is the variation of magnetic flux through the coil
is the time interval
The coil is initially perpendicular to the Earth's magnetic field, so the initial flux through it is given by the product between the magnetic field strength and the area of the coil:
At the end of the time interval, the coil is parallel to the field, so the final flux is zero:
Therefore, we can calculate now the induced emf by using the first formula:
Faraday-Neumann-Lenz states that the induced emf in a coil is given by:
where
N is the number of turns in the coil
The coil is initially perpendicular to the Earth's magnetic field, so the initial flux through it is given by the product between the magnetic field strength and the area of the coil:
At the end of the time interval, the coil is parallel to the field, so the final flux is zero:
Therefore, we can calculate now the induced emf by using the first formula: