2 years ago

50 J of work was done in order to move a chair 5 meters. what was the force applied to the chair

1 answer:

3 0

Using the Definition of Work, we have:

$T=F\DeltaS \\ 50=5F \\ \boxed {F=10N}$

If you notice any mistake in my english, please let me know, because i am not native.

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Zolol [24]

Answer:

$\frac{E_{2}}{E_{1}} \approx 1 -\frac{3\theta}{1-\theta}$ (for small oscillations)

Explanation:

The total energy of the pendulum is equal to:

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For small oscillations, the equation can be re-arranged into the following form:

$E_{1} \approx m\cdot g \cdot (1-\theta) \cdot L$

Where:

$\theta = \frac{A}{L^{2}}$ , measured in radians.

If the amplitude of pendulum oscillations is increase by a factor of 4, the angle of oscillation is $4\theta$ and the total energy of the pendulum is:

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The factor of change is:

$\frac{E_{2}}{E_{1}} \approx \frac{1 - 4\theta}{1-\theta}$

$\frac{E_{2}}{E_{1}} \approx 1 -\frac{3\theta}{1-\theta}$

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2 years ago

The __________-second rule applies to any speed in ideal weather and road conditions.

SOVA2 [1]

The two-second rule.

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2 years ago

Una pelota de golf se lanza con una rapidez de 50 m/seg y un ángulo de elevación de 40º. Calcular:

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Answer:

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2 years ago

A truck pulls a block 8 meters across a level surface at a force of 216 N over the course of 12 seconds. How much power did the

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Answer:

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by using the formula,

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3 years ago

Please give an answer that is coherent

Semmy [17]

Answer:

480

Explanation:

resistance equals to potential difference divide by electric current

120÷0.25

=480

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2 years ago