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kifflom [539]
3 years ago
11

Calculate the electrical energy expended in a device across which the circuit voltage drops by 40.0 volts in moving a charge of

2 coulombs.
A) 20
B) 80
Physics
2 answers:
bogdanovich [222]3 years ago
7 0
Electrical energy = Q x V
Energy = 2 x 40
= 80

The correct answer is B.
elixir [45]3 years ago
4 0

Answer:

80

Explanation:

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Explanation:

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3 years ago
A stone is dropped from a bridge and hits the pavement below in two seconds. What is the velocity of the stone when it hits the
Helen [10]
We have: a = v/t
Here, t = 2 s  [ Given ]
a = 9.8 m/s²  [constant value for earth system ]

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In short, Your Answer would be Option B

Hope this helps!
4 0
3 years ago
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How does The centripetal fotce change if the car has less Mass?​
vaieri [72.5K]

Answer:

The centripetal force acting on the car is proportional to the mass of the car.

Explanation:

Let,

The mass of the car be 'm'

The velocity of the car moving in the curved path be 'v'

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According to physics, a body moving ion circular path experience a force directed along the radius of the path. This force is called centripetal force.

The formula for centripetal force is,

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Where,

                                      a = v²/r

So, if the mass of the car changes, the centripetal force also changes proportionally according to the above equation.

5 0
3 years ago
Which chemicals are major contributors to ozone layer destruction? Select two answer choices.
Nastasia [14]

Answer:

what are the answers to select? or do you just say them

Explanation:

???

3 0
3 years ago
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What does it mean when the
vfiekz [6]

Answer:

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