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PtichkaEL [24]
3 years ago
15

A water tank has a mass of 3.64 kg when empty and 51.8 kg when filled to a certain level. What is the mass of the water in the t

ank?
Physics
1 answer:
mrs_skeptik [129]3 years ago
3 0
Subtract the total mass of the tank and water by the mass of the empty tank. That will yield the mass of the water. 

51.8 - 3.64 = 48.16.

Your answer is 48.16 kg
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Questions Diagram is attached below

Answer:

T=2.08s

Explanation:

From the question we are told that:

Speed of Train V=3.0m.s

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Width of window w_w=2.0m

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Therefore

Time Required to travel trough d is mathematically given as

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Answer:

When the starting and ending points are the same, the total work is zero.

Explanation:

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Explanation:

1)

The acceleration due to gravity is the acceleration that an object in free fall (acted upon the force of gravity only) would have.

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where

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The pendulum in the problem is at an altitude of 3 times the radius of the Earth (R), so its distance from the Earth's center is

r=4R

where

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Therefore, we can calculate the acceleration due to gravity at that height using eq.(1):

g=\frac{GM}{(4R)^2}=\frac{(6.67\cdot 10^{-11})(5.98\cdot 10^{24})0.}{(4\cdot 6.37\cdot 10^6)^2}=0.61 m/s^2

2)

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For the pendulum in this problem, we have:

L = 3 m is its length

g=0.61 m/s^2 is the acceleration due to gravity (calculated in part 1)

Therefore, the period of the pendulum is:

T=2\pi \sqrt{\frac{3}{0.61}}=13.9 s

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