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Evgesh-ka [11]
4 years ago
10

[No Value Inputted Into Question]

Physics
1 answer:
Elden [556K]4 years ago
5 0

Answer:

what do you mean ???????????

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A Hooke's law spring is mounted horizontally over a frictionless surface. The spring is then compressed a distance d and is used
zloy xaker [14]

Answer:

The compression is \sqrt{2} \  d.

Explanation:

A Hooke's law spring compressed has a potential energy

E_{potential} = \frac{1}{2} k (\Delta x)^2

where k is the spring constant and \Delta x the distance to the equilibrium position.

A mass m moving at speed v has a kinetic energy

E_{kinetic} = \frac{1}{2} m v^2.

So, in the first part of the problem, the spring is compressed a distance d, and then launch the mass at velocity v_1. Knowing that the energy is constant.

\frac{1}{2} m v_1^2 = \frac{1}{2} k d^2

If we want to double the kinetic energy, then, the knew kinetic energy for a obtained by compressing the spring a distance D, implies:

2 * (\frac{1}{2} m v_1^2) = \frac{1}{2} k D^2

But, in the left side we can use the previous equation to obtain:

2 * (\frac{1}{2} k d^2) = \frac{1}{2} k D^2

D^2 =  \frac{2 \ (\frac{1}{2} k d^2)}{\frac{1}{2} k}

D^2 =  2 \  d^2

D =  \sqrt{2 \  d^2}

D =  \sqrt{2} \  d

And this is the compression we are looking for

3 0
4 years ago
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What is the mass of the sun plus all the planets in solar system?
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It’s a very huge mass
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Which is a vector quantity
Korolek [52]

Explanation:

Physical quantities are usually designated as either vector or scalar quantities.

There are several fundamental quantities know out there that makes definition of the world possible. Derived quantities are obtained from these fundamental quantities.

  • A vector quantity expresses a quantity that shows both magnitude and direction.
  • With a vector, you know the amount or quantity of measurement taken and the directional attribute.
  • A scalar quantity is a quantity that shows magnitude but no direction.
  • For example velocity is a vector and speed is a scalar. If a body moves at 10m/s due east, that is a vector.

learn more:

Vector brainly.com/question/2678571

#learnwithBrainly

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If, in the above diagram, no gravitational force delay the ball's movement (that is, if the right-hand side of the diagram were
viva [34]

Answer:

A or B

Explanation:

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What is heat a measure of ?A) kinetic energy B) potential energy C) thermal energy
disa [49]
Thermal energy, creates steam or pressure, therefore, if in a small space it creates pressure within its "shell"
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