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Elenna [48]
3 years ago
11

Which do you think the correct answer was wrong Help plis:(

Physics
1 answer:
Alex777 [14]3 years ago
7 0

Answer:

36255 Kg.

Explanation:

From the question given above, the following data were obtained:

Momentum = 1450200 Kgm/s

Velocity = 40 m/s

Mass =?

Momentum is simply defined as the product of mass and velocity. Mathematically, it is expressed as:

Momentum = mass × velocity

With the above formula, we can obtain the mass of the train as follow:

Momentum = 1450200 Kgm/s

Velocity = 40 m/s

Mass =?

Momentum = mass × velocity

1450200 = mass × 40

Divide both side by 40

Mass = 1450200 / 40

Mass = 36255 Kg

Thus the mass of the train is 36255 Kg

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In a physics lab, Asha is given a 10.7 kg uniform rectangular plate with edge lengths 67.3 cm by 53.5 cm . Her lab instructor re
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Answer:

I=2.6363\ kg.m^2

Explanation:

Given:

dimension of uniform plate, (0.673\times 0.535)\ m^2

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where:

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I_{cm}=\frac{1}{12} \times 10.7\times(0.673^2+0.535^2)

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We know that the center of mass of the rectangular plane is at its geometric center which is parallel to the desired axis XX' .

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I=I_{cm}+m.s^2

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6 0
3 years ago
Earth’s atmosphere is in hydrostatic equilibrium. What this means is that the pressure at any point in the atmosphere must be hi
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Consider a large tank holding 1000 L of pure water into which a brine solution of salt begins to owat a constant rate of 6L/min.
lbvjy [14]

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T = 693.147 minutes

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The tank is being continuously stirred. So let the salt concentration of the tank at some time t be x in units of kg/L.

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Brine water flows into the tank at a rate of 6 L/min which has a concentration of 0.1 kg/L

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Also, there is a continuous outflow from the tank at a rate of 6 L/min.

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Irina-Kira [14]

Answer:

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Explanation:

6 0
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