3 years ago

(V2 – V.), what do 6 Label In the equation a = V, and v, represent?

Physics

1 answer:

Orlov [11]3 years ago

5 0

Answer:

Explanation: represends a=v

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The New England Merchants Bank Building in Boston is 152 m high. On windy days it sways with a frequency of 0.15Hz , and the acc

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Answer:

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Explanation:

Hi there,

I'm a bit late with this response, but I attached the work below.

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3 years ago

According to Faraday, what is produced by a changing magnetic field?

Alex_Xolod [135]

Answer:

c. Induced voltage.

Explanation:

Faraday's law says

$\varepsilon = N \dfrac{d \Phi_B}{dt},$

or in words,

<em>"A changing magnetic flux induces an emf (potential difference) in a coil of wire "</em>

This potential difference is induced, and therefore, we can also call it "induced voltage"; Hence, from the choices given, choice C stands correct.

<em>P.S: Another tempting choice is d; however, it is incorrect since induced emf is NOT an electrostatic force.</em>

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Why does a ship need an anchor

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So there is extra wait that pulls the boat to stop.

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Suppose a rock is dropped off a cliff with an initial speed of 0m/s. What is the rocks speed after 5 secounds, in m/s, if it enc

Tasya [4]

Answer:

The rock's speed after 5 seconds is 98 m/s.

Explanation:

A rock is dropped off a cliff.

It had an initial velocity of 0 m/s. And now it is moving downwards under the influence of gravitational force with the gravitational acceleration of 9.8 m/s².

Speed after 5 seconds = V

We know that acceleration = average speed/time

In our case,

g = ((0+V)/2)/5

9.8*5 = V/2

=> V = 2*9.8*5

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I am not sure but i think the answer is C

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