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Dafna1 [17]
2 years ago
9

PLEASE HELPPPP!!!!!!!!!!

Physics
2 answers:
son4ous [18]2 years ago
5 0

Answer:

I think its B

Explanation:

marysya [2.9K]2 years ago
3 0
I’m pretty sure it’s B :)
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A person is walking down the street maintain the same speed and direction. The person is accelerating.
balandron [24]

Answer:

no change in speed, therefore the body cannot be accelerated.  a=0

Explanation:

When a person is accelerating his speed must change, if the speed is in the same direction as the acceleration the speed increases and if the acceleration is in the opposite direction to the speed it decreases.

In this case there is no change in speed, therefore the body cannot be accelerated.

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2 years ago
What would be Kelley's weight be in newtons if her mass was 70 kilograms
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Kelly's weight would be 688.47 Newtons.

Explanation:

1 Kilogram would be 9.81 Newtons.

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The normal force always points ____ to the two surfaces in contact.
shepuryov [24]

Answer:

A..................

6 0
3 years ago
What form water has the greatest kinetic energy
Ray Of Light [21]

Answer:

Boiling water

Explanation:

Boiling water because it has the most rapid movement.

4 0
3 years ago
A parallel-plate capacitor has plates of area A. The plates are initially separated by a distance d, but this distance can be va
ohaa [14]

Answer:

d' = d /2

Explanation:

Given that

Distance = d

Voltage =V

We know that energy in capacitor given as

U=\dfrac{1}{2}CV^2

C=\dfrac{\varepsilon _oA}{d}

U=\dfrac{1}{2}\times \dfrac{\varepsilon _oA}{d}\times V^2

If energy become double U' = 2 U then d'

U'=\dfrac{1}{2}\times \dfrac{\varepsilon _oA}{d'}\times V^2

2U=\dfrac{1}{2}\times \dfrac{\varepsilon _oA}{d'}\times V^2

2\times \dfrac{1}{2}\times \dfrac{\varepsilon _oA}{d}\times V^2=\dfrac{1}{2}\times \dfrac{\varepsilon _oA}{d'}\times V^2

2 d ' = d

d' = d /2

So the distance between plates will be half on initial distance.

7 0
2 years ago
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