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soldi70 [24.7K]
3 years ago
15

If an object floats, the volume of the displaced water is equal to the volume of the whole object. True or false?

Physics
1 answer:
azamat3 years ago
8 0

Answer:

True

Explanation:

This is in fact what the Archimedes principle states, and what he used in the famous anecdote about finding if  the crown of the King was really made of gold.

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A single coil of wire, with a radius of 0.13 m is rotated in a uniform magnetic field such that the angle between the field vect
Vedmedyk [2.9K]

The magnitude of emf induced in the single coil of wire rotated in the uniform magnetic field is 0.171 V.


<h3>Induced emf</h3>

The emf induced in the loop is determined by applying Faraday's law of electromagnetic induction.

emf = N(dФ/dt)

where;

  • N is number of turns of the wire
  • Ф is magnetic flux

Ф = BA

where;

  • B is magnetic field strength
  • A is the area of the loop

emf = NBA/t

A = πr²

A = π x (0.13)²

A = 0.053 m²

emf = NBA/t

emf = (1 x 3.746 x 0.053)/(1.16)

emf = 0.171 V

Thus, the magnitude of emf induced in the single coil of wire is 0.171 V.

Learn more about induced emf here: brainly.com/question/13744192

5 0
2 years ago
What must be true about a surface in order for diffuse reflection to occur?
balu736 [363]

Answer:

carpet

Explanation:

Diffuse reflection is the reflection of light from a surface such that an incident ray is reflected at many angles rather than at just one angle as in the case of specular reflection.

The structure of carpet's surface is as shown. Thus it shows large amount of diffuse reflection.

4 0
3 years ago
Answer quick to get brain list but not wrong
Studentka2010 [4]

Answer:

option c.

option c.38° and 42°

6 0
3 years ago
Simlarity between longitudanal and transverse waves
babymother [125]

For transverse waves, the waves move in perpendicular direction to the source of vibration. For longitudinal waves, the waves move in parallel direction to the source of vibration . They are similar in the sense that energy is transferred in the form of waves.

8 0
3 years ago
As the wavelength increases, the frequency? A. decreases and energy decreases B. increases and energy increases C. decreases and
const2013 [10]

For the same wave, the product product of

               (wavelength) times (frequency)

is always the same number.  (It happens to be the speed of the wave.)

So if one of them changes, the other one has to change in the opposite
direction, in order to keep their product constant.

For electromagnetic waves, higher frequency means higher energy.
I'm not sure about mechanical waves just now.

8 0
4 years ago
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