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Volgvan
2 years ago
5

When a +0.00235 C charge

Physics
1 answer:
irakobra [83]2 years ago
4 0

Answer:177.87

Explanation:

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A) how your body uses oxygen

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Polymers are widely used advanced materials, which are found almost in every material used in our daily life. ... The rapid increase in demand for the manufactured products introduce the new materials. These new materials are polymers, and their impact on the present way of life is almost incalculable.Explanation:

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A mechanic jacks up the front of a car to an angle of 8.0° with the horizontal in order to change the front tires. the car is 3.
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a single 1,300 jk cargo car is rolling along a train track at 2.0 m/s when 400 kg of coal is dropped vertically into it. what is
tensa zangetsu [6.8K]

Answer:

1.53 m/s

Explanation:

Given:

Mass of the car (M) = 1300 kg

Mass of the coal (m) = 400 kg

Initial velocity of the car (U) = 2 m/s

Initial velocity of the coal (u) = 0 m/s (Since it is dropped)

When the coal is dropped into the car, then they move with same final velocity.

Let the final velocity be 'v' m/s.

For a closed system, the law of conservation of momentum holds true.

So, initial momentum is equal to final momentum of the car-coal system.

Initial momentum of the car = MU=1300\times 2=2600\ Ns

Initial momentum of the coal = mu=0\ Ns

Total initial momentum is the sum of the above two momentums.

So, total initial momentum = 2600 + 0 = 2600 Ns

Now, final momentum is given as the product of combined mass and final velocity. So,

Final momentum of the system = (M+m)v=(1300+400)v=1700v

Now, from law of conservation of momentum,

Initial momentum = Final momentum

2600=1700v\\\\v=\frac{2600}{1700}\\\\v=1.53\ m/s

Therefore, the final velocity of either of the two masses is same is equal to 1.53 m/s.

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