3 years ago

URGENT HELP PLEASE WILL AWARD BRAINLIEST!!!!!

Physics

1 answer:

dexar [7]3 years ago

6 0

Answer:

2.B 4.C 5.also C 7.A 10.D

Explanation:

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Frictional force increases with the increase in the _______________ of the surface.

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Answer:

Frictional force increases with the increase in the roughness of the surface.

Explanation:

You will see that the rougher the surface, the greater the wear and tear.

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The magnetic field 0.100 m from a

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Answer:

Your answer is given below:

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A step-up transformer is connected to a generator that is delivering 141 V and 110 A. The ratio of the turns on the secondary to

hammer [34]

Answer:

31302 Volts and 55/111 Amps (≈0.5)

Explanation:

Secondary voltage / 141 = 1110 / 5

Secondary voltage = (1110*141) / 5

Secondary voltage = 31302

Amperage = 110/ (31302/141) = 55/111

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You are pushing a wooden crate across the floor at constant speed. You decide to turn the crate on end, reducing by half the sur

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Answer:

D. Half as great

Explanation:

Since we know that the friction force between the surface of crate and ground is given as

$F_f = \mu F_n$

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$\mu$ = friction coefficient between two surfaces which depends on the effective contact area between two surfaces

$F_n$ = normal force due to the object

So when we turn the object on another side such that the surface area is half then the friction coefficient will become also half

So here the friction force will also reduce to half

so correct answer will be

D. Half as great

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A force has both______ and _______. Question 1 options: Speed and impact Magnitude and direction Motion and speed Direction and

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Answer:

magnitude

and direction

Explanation:

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