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:
The correct answer is
<span>C. The current in the battery and in each resistor is the same.
In fact, when resistors are connected in series, the current flowing through them is the same in each resistor. This is also equal to the current flowing in the circuit, so it is the same as the current flowing through the battery.</span>
Answer:
The acceleration in the block is 2.1 m/s²
Explanation:
Given that,
Mass = 50 kg
Angle = 54°
Force = 40 N
Coefficient of friction = 0.33
We need to calculate the acceleration in the block
Using balance equation



Put the value into the formula


Hence, The acceleration in the block is 2.1 m/s²
Answer:
No. It may be at rest or moves with a constant velocity.
Explanation:
The term "net force" refers to the vector addition of all forces acting on a defined body.
If the magnitude of the net is zero, then the acceleration of the given body would be zero. Hence, the given body may be moving with an unchanged velocity or at rest.
''The freezer and room are not an isolated system, since electrical energy flows in.'' is the correct statement.
<h3>
What is Second Law of Thermodynamics?</h3>
The Second Law of Thermodynamics says that "in all energy exchanges, if no energy enters or leaves the system, the potential energy of the state will always be less than the energy of the initial state."
So we can conclude that ''The freezer and room are not an isolated system, since electrical energy flows in.'' is the correct statement.
Learn more about law here: brainly.com/question/820417
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