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Alenkinab [10]
3 years ago
9

A ship is travelling due east at 30 km/hr and a boy runs across the deck

Physics
1 answer:
dsp733 years ago
8 0

Answer:

Vr = 20 [km/h]

Explanation:

In order to solve this problem, we have to add the relative velocities. We must remember that velocity is a vector, therefore it has magnitude and direction. We will take the sea as the reference measurement level.

Let's take the direction of the ship as positive. Therefore the boy moves in the opposite direction (Negative) to the reference level (the sea).

V_{r}=30-10\\V_{r}=20 [km/h]

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maw [93]

Answer:

I = 578A

Explanation:

The magnitude of the peak value of the induced current flowing in a coild is given by

I = \frac{\epsilon_{max}}{R}

I = \frac{NBA\omega}{R}

Where

I= current

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\omega = angular velocity

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Replacing our values we have that,

I = \frac{(100)(1.3)(0.055)^2(2.5)}{1.7*10^{-3}}

I = 578A

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What does the electric field strength tell about the electric firld?
Solnce55 [7]

Answer:

Explanation:

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The strength of electric field is defined as the force experienced by the unit positive test charge.

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