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Mariulka [41]
2 years ago
6

PLEASE HELP!! I’ll give brainliest pls

Physics
1 answer:
marin [14]2 years ago
6 0

Answer:

A

Explanation:

houses use alternating current source

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A wheel that is rotating at 33.3 rad/s is given an angular acceleration of 2.15 rad/s 2. Through what angle has the wheel turned
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Answer:

The angle through which the wheel turned is 947.7 rad.

Explanation:

initial angular velocity, \omega _i = 33.3 rad/s

angular acceleration, α = 2.15 rad/s²

final angular velocity, \omega_f = 72 rad/s

angle the wheel turned, θ = ?

The angle through which the wheel turned can be calculated by applying the following kinematic equation;

\omega_f^2 = \omega_i^2 + 2\alpha \theta\\\\\theta = \frac{\omega_f^2\   -\  \omega_i^2}{2\alpha } \\\\\theta = \frac{(72)^2\   -\  (33.3)^2}{2(2.15)}\\\\\theta = 947.7 \ rad

Therefore, the angle through which the wheel turned is 947.7 rad.

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2 years ago
MATHPHYSSSSSSSS PLEASEEEEEE IM SORRY YOU PROBABLY HATE ME
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Answer:

3.1 m/s

Explanation:

First, find the time it takes for the cat to land.  Take down to be positive.

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Δy = 0.61 m

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a = 9.81 m/s²

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t = 0.353 s

Now find the horizontal velocity needed to travel 1.1 m in that time.

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Δx = 1.1 m

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v₀ = 3.1 m/s

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