2 years ago

Describe friction force (Ffr) in your own words

1 answer:

3 0

Answer: Friction is like when u take two stick's and rub it together to make fire when you use friction it can produce heat. Applied force is like and applied to an object or person if a person is pushing a desk across the room then there is applied force.

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9.9 m/s

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The current that flows from and back to the power supply in a parallel circuit is called __________ current.

blagie [28]

Answer:

mainline current

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Current that flows from and back to the power supply in a parallel circuit. Fuse. A type of circuit protection device.

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An object having a mass of 2.0 kilograms falls from a height of 15 meters. What is its kinetic energy when it hits the ground?

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How long does it take a wheel that is rotating at 33.3 rpm to speed up to 78.0 rpm if it has an angular acceleration of 2.15 rad

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initial angular speed is given by 33.3 rpm

$w_0 = 2\pi \frac{33.3}{60}$

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$w_f = 8.17 rad/s$

now by using kinematics we will have

$w_f = w_0 + \alpha * t$

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3 years ago

What relation does distance have with force and mass

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This relationship was first published by Sir Issac Newton. His law of universal gravitation says that the force (F) of gravitational attraction between two objects with Mass1 and Mass2 at distance D is: F = G(mass1*mass2)/D squared

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