3 years ago

One astronomical unit is equal to which distance?

Physics

1 answer:

Semmy [17]3 years ago

4 0

Answer:

B. the distance from Earth to the Sun

Explanation:

Around 93 million miles

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An 18-cm-long bicycle crank arm, with a pedal at one end, is attached to a 20-cm-diameter sprocket, the toothed disk around whic

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Answer:

Part a)

$a = 0.056 m/s^2$

Part b)

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Explanation:

Part a)

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so the angular acceleration is given as

$\alpha = \frac{\omega_2 - \omega_1}{\Delta t}$

so we will have

$\alpha = \frac{2\pi(\frac{90}{60}) - 2\pi(\frac{60}{60})}{10}$

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$a = 0.18 \times 0.314$

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Part b)

Total angular displacement made by the sprocket in the interval of 10 s is given as

$\theta = \frac{\omega_f + \omega_i}{2} t$

$\theta = \frac{2\pi (\frac{90}{60}) + 2\pi (\frac{60}{60})}{2}(10)$

$\theta = 78.5 radian$

now length of the chain passing over it is given as

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