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geniusboy [140]
3 years ago
8

A car accelerates for 10 seconds. During this time, the angular

Physics
1 answer:
bagirrra123 [75]3 years ago
4 0

Answer:

the angular acceleration of the car is 1.5 rad/s²

Explanation:

Given;

initial angular velocity, \omega_i = 10 rad/s

final angular velocity, \omega_f = 25 rad/s

time of motion, t = 10 s

The angular acceleration of the car is calculated as follows;

a_r = \frac{\omega_f - \omega_i }{t} \\\\a_r = \frac{25-10}{10} = 1.5 \ rad/s^2

Therefore, the angular acceleration of the car is 1.5 rad/s²

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C

Explanation:

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A student wants to start a small business in school. Write down six items that
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Neutron stars, such as the one at the center of the Crab Nebula, have about the same mass as our sun but have a much smaller dia
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Answer:

Wn = 9.14 x 10¹⁷ N

Explanation:

First we need to find our mass. For this purpose we use the following formula:

W = mg

m = W/g

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W = Weight = 675 N

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Therefore,

m = (675 N)/(9.8 m/s²)

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gn = (G)(Mn)/(Rn)²

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G = Universal Gravitational Constant = 6.67 x 10⁻¹¹ N.m²/kg²

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Therefore,

gn = (6.67 x 10⁻¹¹ N.m²/kg²)(1.99 x 10³⁰ kg)/(10000)

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Wn = m(gn)

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<u>Wn = 9.14 x 10¹⁷ N</u>

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d=\frac{at^2}{2}

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