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tatyana61 [14]
2 years ago
13

A 5kg box is being pulled for a force of 20 n and is sliding with an acceleration of 2 m/s. Find the coefficient of friction

Physics
1 answer:
RUDIKE [14]2 years ago
3 0

Answer:

Coefficient of friction = 0.5

Explanation:

Given:

Mass of box = 5 kg

Force applied = 20 N

Acceleration = 2 m/s²

Find:

Coefficient of friction

Computation:

Friction force = Mass x Acceleration.

Friction force =  5 x 2

Friction force = 10 N

Coefficient of friction = Friction force / Force applied

Coefficient of friction = 10 / 20

Coefficient of friction = 0.5

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6.<br> What is the speed of a rocket that travels 9000 meters in 12.12 seconds?
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Answer:

742.57 m/s

Explanation:

Given:

Distance travels by a rocket = 9000 metres

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Questioned asked:

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5 0
3 years ago
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Answer:

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Explanation:

6 0
2 years ago
At room temperature what is the strength of the electric field in a 12-gauge copper wire (diameter 2.05 mm that is needed to cau
Dima020 [189]
Electric field strength = resistivity of copper x current density
where
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cross section area = pi.(d/2)^2;  
cross section = 3.3 006x10-6 m^2
substitute the values 
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Electric field stregnth =1.72 x 10^-8 ohm meter x 35.55 x10^2 A/m^2
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The electric field strength of copper is 46.415 V/m.


6 0
3 years ago
Nicolas is playing with his toy car. A parachute in the back of the car is released to help slow down the car.
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Answer:3 N —->

Explanation:

4 0
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