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aivan3 [116]
3 years ago
8

TRUE OR FALSE : Boyle’s law states that, as the pressure of a gas increases, the volume decreases.

Physics
2 answers:
White raven [17]3 years ago
6 0

True, but only if the temperature of the gas doesn't change ...
which is pretty hard to manage when you're compressing it.

I think Boyle's law actually says something like

       (pressure) x (volume) / (temperature)  =  constant.

So you can see that if you want to say anything about two of the
quantities, you always have to stipulate that the statement is true
as long as the third one doesn't change.


NemiM [27]3 years ago
3 0

It's true, but the temperature of gas can NOT change.

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As more resistors are added in series across a constant voltage source, the power supplied by the source: A) does not change. B)
Anon25 [30]

As series resistors are added, the resistance is added directly so the total resistance will be equal to

R_T = R_1+R_2+R_3... R_{\infty}

Since the power is determined as

P = \frac{V^2}{R}

We have there that

P \propto \frac{1}{R}

The power is inversely proportional to the increase in resistance, so it will tend to decrease as more resistors are added in series.

The correct answer is: C.

4 0
3 years ago
a 10kg ball is thrown into the air. it is going 3m/s when thrown. How much potential energy will it have at the top?
Alexandra [31]

Answer:

45 J

Explanation:

Assuming the level at which the ball is thrown upwards is the ground level,

We can use the equations of motion to obtain the maximum height covered by the ball and then calculate the potential energy

u = initial velocity of the ball = 3 m/s

h = y = vertical distance covered by the ball = ?

v = final velocity of the ball at the maximum height = 0 m/s

g = acceleration due to gravity = -9.8 m/s²

v² = u² + 2ay

0 = 3² + 2(-9.8)(y)

19.6y = 9

y = (9/19.6)

y = 0.459 m

The potential energy the ball will have at the top of its motion = mgh

mgh = (10)(9.8)(0.459) = 45 J

Hope this Helps!!!

7 0
3 years ago
A hockey puck is hit with a large force. The puck moves at a high speed as it slides over the ice.
ValentinkaMS [17]

According to Newton's first law of motion, the puck gradually slows down because friction would be acting on it.

<h3>What is Newton's first law?</h3>

Newton's first law of motion states that an object will remain at rest or move uniformly in a straight line unless acted upon by an external force.

According to this question, a hockey puck is hit with a large force. The puck moves at a high speed as it slides over the ice.

However, in accordance with the first law of motion proposed by Newton, the puck gradually slows down because friction would be acting on it.

Learn more about Newton's law at: brainly.com/question/974124

#SPJ1

8 0
2 years ago
Due to human demand because of its importance to life, the Earth's most precious resource is 
pychu [463]
The answer is variant C because every living organism needs water to survive. A human can live without water only 6 days, after that period the most important organs start to shut down because of the lack of water.
3 0
3 years ago
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Advocard [28]

Explanation:

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Sun's own motion is not that evident to us because of which the impact of that motion is nullified. But, motion of planet is clearly visible and it also shows in their annual round around the Sun. Here, Mars also shows retrograde motion which means it will show a back and forth motion in the sky. Because of which Mars might be visible in the same zodiac for a longer Duration as compared to the Sun.

7 0
3 years ago
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