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dezoksy [38]
3 years ago
8

How is velocity ratio of wheel and axle calculatedaad​

Physics
1 answer:
iogann1982 [59]3 years ago
3 0

Answer:

VR = \frac{Radius of wheel}{Radius of axle}

Explanation:

A machine is a device that can be used to overcome a load by the application of an effort through a pivot. Examples are: pulleys, wedge, screw jack, wheel and axle etc.

The wheel and axle is a simple device that can be used to lift a load through a height. Its velocity ratio (VR) can be determined by:

VR = \frac{Radius of wheel}{Radius of axle}

Note that for a practical wheel and axle, the radius of the wheel is greater than the radius of the axle.

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Describe the orbital diagram of an atom with 16 electrons
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Answer:

The orbital diagram represents the filling of electrons in the sub levels of an orbit. The filling of the orbitals in sub- levels follow some basic rules and principles.

The orbital diagram of an orbit containing 16 electrons will be as follows:

    1s²2s²2p⁶3s²3p⁴

  • The maximum number of electrons in each sublevel of the orbitals are:
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3 years ago
Sally can run 3 flights of stairs in 25 seconds. Each stair is 0.15 meter tall and there are 15 stairs in one flight. Sally has
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Explanation

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2 years ago
THE LENGTH OF A PENDULUM IS (1.5±0.01)m AND THE ACCELERATION DUE TO GRAVITY IS TAKEN AS (9.8±0.1)ms-² calculate the time period
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Answer:

  2.4583 ± 0.0207 seconds

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The time period of a pendulum is approximately given by the formula ...

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The maximum period will be achieved when length is longest and gravity is smallest:

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The minimum period will be achieved for the opposite conditions: minimum length and maximum gravity:

  Tmin = 2π√(1.49/9.9) ≈ 2.43756 . . . seconds

If we want to express the uncertainty using a symmetrical range, we need to find half their sum and half their difference.

  T = (2.47903 +2.43756)/2 ± (2.47903 -2.43756)/2

  T ≈ 2.4583 ± 0.0207 . . . seconds

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We have about 2+ significant digits in the given parameters, so the time might be rounded to 2.46±0.02 seconds.

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2 years ago
A rock is at the top of a 20m tall hill. The rock has a mass of 10kg. How much potential energy does the rock have?
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