3 years ago

FOR BRAINLIEST! Someone draw me a Rube Goldberg Machine.

Physics

1 answer:

tatyana61 [14]3 years ago

8 0

This ain’t mine but here is someone else’s

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2. A marble is rolling at a velocity of 1.5 m/s with a momentum of 3.0 kg×m/s. What is its mass?

Nikolay [14]

Answer:

m= 2[kg]

Explanation:

Linear momentum can be calculated as the product of mass by Velocity.

$P=m*v$

where:

P = linear momentum = 3 [kg*m/s]

v = velocity = 1.5 [m/s]

m = mass [kg]

$m=P/v\\m=3/1.5\\m=2[kg]$

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3 years ago

How do we know that an object has accelerated?

Olin [163]

A change in velocity or a change in direction, or both! Hope this helps

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A 50 kg boy on ice skates throws a 5 kg ball to the left. If the ball ends up going 20 m/s. How fast is the boy going?

lukranit [14]

Answer:

He's going 4m/s per second

Explanation:

3tgk

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3 years ago

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A flea may live on the skin of a dog and feed on the dog's blood. This relationship between the flea and the dog is an example o

AlexFokin [52]

I think it might be a Parasite

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3 years ago

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Two satellites are orbiting earth at different altitudes. Which satellite orbits at a higher speed v around earth?

aniked [119]

Answer:

Low satellite has high orbital velocity

Explanation:

let v be the orbital speed of the satellite orbiting at a height h is given by

$v=\sqrt{\frac{GM}{R+h}}$

where, M be the mass of planet, r be the radius of planet and h be the height of planet from the surface of planet.

here we observe that more be the height lesser be the orbital velocity.

So, a satellite which is at low height has high orbital velocity.

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4 years ago