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Vladimir [108]
3 years ago
8

How would decreasing the time it takes you to run a certain distance affect your speed?

Physics
1 answer:
morpeh [17]3 years ago
5 0

You have it exactly backwards.

IN ORDER TO run a certain distance in less time,
you must increase your speed. That's the only way.

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Differentiate the following functions with respect to x <br>xsin x​
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Answer:

Here is your answer

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Rahul sits in a chair reading a book. Which force is equal to the force Rahul exerts on Earth?
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An old light bulb draws only 54.3 W, rather than its original 60.0 W, due to evaporative thinning of its filament. By what facto
Lemur [1.5K]

Answer:

The factor of the diameter is 0.95.

Explanation:

Given that,

Power of old light bulb = 54.3 W

Power = 60 W

We know that,

The resistance is inversely proportional to the diameter.

R\propto\dfrac{1}{D}

The power is inversely proportional to the resistance.

P\propto\dfrac{1}{R}

P\propto D^2

We need to calculate the factor of the diameter of the filament reduced

Using relation of power and diameter

\dfrac{P_{i}}{P_{f}}=\dfrac{D_{i}^2}{D_{f}^2}

Put the value into the formula

\dfrac{D_{i}^2}{D_{f}^2}=\dfrac{54.3}{60}

\dfrac{D_{i}}{D_{f}}=0.95

D_{i}=0.95 D_{f}

Hence, The factor of the diameter is 0.95.

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3 years ago
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You push a bike pedal 10cm and the bike moves 100cm. Calculate the Speed ratio ( show all work ) ( use the formula and divide th
scZoUnD [109]

Answer:

when you are pushing the pedal you are causing the pedal to move done and then you will move 100cm

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3 years ago
An archer shoots an arrow at a 75.0 m distant target; the bull’s-eye of the target is at same height as the release height of th
jeyben [28]

Answer:

the shooting angle ia 18.4º

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For resolution of this exercise we use projectile launch expressions, let's see the scope

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      2θ = sin⁻¹ (0.6)

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To know how for the arrow the tree branch we calculate the height of the arrow at this point

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We calculate the time to reach this point since the speed is constant on the X axis

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With the height of the branch is 3.5 m and the arrow passes to 6.23, it passes over the branch

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