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3 years ago

A cat was standing at the 0m line and ran south to the 100m in 4 seconds what's the average velocity

Physics

1 answer:

Setler79 [48]3 years ago

5 0

Answer:

Explanation:

Velocity= change in displacement/ change in time

=100-0/4-0

=25

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¨Facts you didn´t know¨ or ¨unknown facts¨

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3 years ago

Electromagnetic radiation includes only visible light waves. true or false

stealth61 [152]

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2 years ago

The blades in a blender rotate at a rate of 6100 rpm. When the motor is turned off during operation, the blades slow to rest in

MissTica

Answer:

155.80rad/s

Explanation:

Using the equation of motion to find the angular acceleration:

$\omega_f = \omega_i + \alpha t$

$\omega_f$ is the final angular velocity in rad/s

$\omega_i$ is the initial angular velocity in rad/s

$\alpha$ is the angular acceleration

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Given the following

$\omega_f = 6100rpm$

Time = 4.1secs

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6100rpm = x

x = 6100 * 0.10472

x = 638.792rad/s

$\omega_f = 638.792rad/s\\$

Get the angular acceleration:

Recall that:

$\omega_f = \omega_i + \alpha t$

638.792 = 0 + ∝(4.1)

4.1∝ = 638.792

∝ = 638.792/4.1

∝ = 155.80rad/s

Hence the angular acceleration as the blades slow down is 155.80rad/s

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2 years ago

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Answer:

Explanation:

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3 years ago

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3 years ago