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Gala2k [10]
4 years ago
5

7.) A car starts from rest and accelerates

Physics
1 answer:
gizmo_the_mogwai [7]4 years ago
7 0

It will take 20 seconds for the car to attain a speed of 34 m/s

Explanation:

  • Acceleration of an object is given by a = velocity/time.
  • Here, acceleration of the car = 1.7 m/s² and velocity = 34 m/s. Using these, find time.
  • Time =  velocity/acceleration

                 = 34/1.7 = 20 s

So it takes 20 seconds to attain a speed of 34 m/s

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7nadin3 [17]

Answer:

5.3 cm

Explanation:

This question is an illustration of real and apparent distance.

From the question, we have the following given parameters

Real Distance, R = 8.0cm

Refractive Index, μ = 1.5

Required

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The relationship between R, A and μ is:

μ = R/A

i.e.

Refractive Index = Real Distance ÷ Apparent Distance

Substitute values in the above formula

1.5 = 8/A

Multiply both sides by A

1.5 * A = A * 8/A

1.5A = 8

Divide both side by 1.5

1.5A/1.5 = 8/1.5

A = 8/1.5

A = 5.3cm

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8 0
3 years ago
Which type of wave is described as a wave that is not confined to the space along medium?
Dmitry [639]

Traveling wave is a wave that is not confined to the space along medium.

traveling wave is a wave that travels along the medium causing disturbance. instead of vibrating at the same place, the particles actually move in the direction of wave. one common example of such type of wave is ocean waves.

4 0
4 years ago
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B. Power
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Explanation:

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liquid have close particles but which are able to move with a bit of kinetic energy, for this reason they have no fixed volume but take the volume of the container or vessel

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