3 years ago

Has The property of inertia

1 answer:

3 0

Answer:

Inertia is a property of a body through which a body resists a change which occurs due to applied force in its state of rest or motion.

For example, if a passenger sitting in the bus and the bus suddenly applied brakes, the passenger lower part is stop but the upper part move in forward direction. It is due to inertia because the upper part wants to continue its motion in the farward direction.

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Atmospheric pressure at sea level is 760 mm Hg, and oxygen makes up 20.9% of this air when it is dry. Scientists at the Mt. Wash

Lubov Fominskaja [6]

Answer:

127.28 mmHg

Explanation:

The molar fraction of oxygen in dry air at 760 mmHg is 20.9%. This molar fraction is not affected too much by the height, so it may be taken as a constant. The partial pressure of oxygen may be calculated as:

$P_{O_{2}}=y_{O_{2}}*P$

So, if the total pressure is 609 mmHg,

$P_{O_{2}}=0.209*609=127.28$ mmHg.

8 0

3 years ago

A cube of ice melts in a beaker to form 10 g of water. What is the best estimate of the mass of the ice cube?

prohojiy [21]

I think the answer is 10g
when you freeze a specific amount of water into an ice cube, only the form and the density is changed, while the mass will be pretty much the same.
Probably the mass of the melted water will be a little bit less than the cube (if count the mass that released to the air) , but the amount will NOT BE SIGNIFICANT.

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3 years ago

Read 2 more answers

Can u guys pls write a little paragrapgh for each number hurry pls i need to pass this class for my mom

marin [14]

What the person above said is correct

5 0

3 years ago

What is the difference between a molecular formula and a molecular model?

icang [17]

There really isn't a difference if you think about it

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