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3 years ago

Please help me on this question

Physics

1 answer:

soldi70 [24.7K]3 years ago

3 0

Lowest -- 1

Next -- 4

Next -- 2

Highest -- 3

If every resistor is, let's say, 100 ohms, then . . .

#1 ... 25 ohms

#2 ... 250 ohms

#3 ... 400 ohms

#4 ... 100 ohms

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3 years ago

A boy pushes a 50 kg wheelbarrow with a velocity of 0.5 m/s. If he uses a force of 10 N, how far does he push

labwork [276]

Answer:

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3 years ago

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3 years ago

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Answer:

Explanation:

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4 years ago

A car travels along a horizontal road which is an arc of radius 125m. the greatest speed at which the car can travel without sle

hammer [34]

The coefficient of friction between the Tyre and the ground is 0.11

<u>Explanation:</u>

Given:

Radius of the track (r)=125 m.

Speed with which the car travels (v) =42 km/hr

=11.67 m/s

To Find:

Coefficient of friction between the Tyre and the ground.

Formula to be used:

$Centripetal\ force\ Fc= mv^2/r\\\\=m\times 11.67^2/125\\\\=1.08 m$

We know that,Frictional force is equal to centripetal force

Frictional force=μmg

therefore 1.08 m=μmg

Cancelling "m" on both sides we get,

μ=1.08/g=1.08/9.8

=0.11

Thus the coefficient of friction between the Tyre and the ground is 0.11

7 0

3 years ago

Please help me on this question​

Please help me on this question