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sashaice [31]
3 years ago
13

WILL GIVE BRAINLIEST

Physics
1 answer:
zheka24 [161]3 years ago
8 0

Answer:

The boat will go faster.

Explanation:

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What is the peak emf generated by a 0.250 m radius, 500-turn coil is rotated one-fourth of a revolution in 4.17 ms, originally h
zysi [14]

Complete question:

What is the peak emf generated by a 0.250 m radius, 500-turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having its plane perpendicular to a uniform magnetic field 0.425 T. (This is 60 rev/s.)

Answer:

The peak emf generated by the coil is 15.721 kV

Explanation:

Given;

Radius of coil, r = 0.250 m

Number of turns, N = 500-turn

time of revolution, t = 4.17 ms = 4.17 x 10⁻³ s

magnetic field strength, B = 0.425 T

Induced peak emf = NABω

where;

A is the area of the coil

A = πr²

ω is angular velocity

ω = π/2t = (π) /(2 x 4.17 x 10⁻³) = 376.738 rad/s =  60 rev/s

Induced peak emf = NABω

                               = 500 x (π x 0.25²) x 0.425 x 376.738

                               = 15721.16 V

                               = 15.721 kV

Therefore, the peak emf generated by the coil is 15.721 kV

5 0
3 years ago
Globalization is the process of
Delvig [45]

Answer: Globalization is the process of interaction and integration among people, companies, and governments worldwide.

Explanation:

5 0
3 years ago
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What is the minimum value of the resultant if we combine a 6 Newton force and a 3 Newton force?
Setler79 [48]
The minimum is 3 Newton, when the two forces act in opposite directions.
7 0
3 years ago
Which of the following safety devices provides a weak link in a circuit that will melt if it received too much current, thus bre
SVETLANKA909090 [29]
The correct answer is B. Fuse.

Fuses were commonly used in houses up to recent ages, when circuit breakers became the more popular options, as they don't have to be changed every time they melt, since they don't melt.
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3 years ago
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In a completely frictionless Newton's Cradle toy, the change in speed of the balls coming in and those going out is zero. This i
BlackZzzverrR [31]

Answer:

False. The net force is Zero

Explanation:

To answer this question we propose the solution of the problem.

 We have a toy where balls come in and out after crashes between them, this toy forms our system, so all the balls are parts of the system, when the balls collide with each other according to Newton's third law force and action and reaction, so it has the same magnitude, but opposite direction, this is each is applied to some of the objects.

In conclusion of the previous one for the system the net force is Zero, all are internal. Therefore, the only thing that happens is a redistribution of speeds according to the conservation of the moment.

Let's review the answer.

False. The net force is Zero

3 0
3 years ago
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