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3 years ago

4. Challenge: Try to explain these results based on the fact that air pressure decreases with

Physics

1 answer:

lara [203]3 years ago

6 0

Answer with Explanation:

I can see that you haven't attached the results.

Under Ideal Gas Law, "pressure" is directly proportional to the number of molecules (provided that the volume and temperature remains constant).

Most of the atmosphere's molecules are drawn towards the surface of the Earth because of "gravity." This means that there are more atmospheric molecules closer to the Earth's surface, which also means the air pressure in lower altitude is higher due to a denser air space.

This, in turn, leaves a lesser number of atmospheric molecules as the height increases which means there is lesser atmospheric pressure in areas of higher altitudes due to a less denser air space.

So, this explains the answer.

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A round loop of wire carries a current of 100 A, has a radius of 10 cm, and its normal (vector) makes an angle of 30∘ with a mag

Oliga [24]

Answer:

0.823 Nm

Explanation:

current, i = 100 A

radius, r = 10 cm

Angle between the normal and the magnetic field, θ = 30°

Magnetic field, B = 0.524 T

Torque is defined as the

$\tau = i \times A\ B\times sin\theta$

$\tau = 100 \times 3.14\times 0.1\times 0.1\ 0.524\times 0.5$

Torque = 0.823 Nm

Thus, the torque is 0.823 Nm.

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3 years ago

An airplane starts at rest and accelerates at 6.8 m/s2 at an angle of 39° south of west. After 9 s, how far in the westerly dire

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Answer:36.8

Explanation:

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3 years ago

The most recently discovered system close to Earth is a pair of brown dwarfs known as Luhman 16. It has a distance of 6.5 light-

just olya [345]

Answer:

1.99 parsecs.

Explanation:

We have been given that the most recently discovered system close to Earth is a pair of brown dwarfs known as Luhman 16. It has a distance of 6.5 light-years.

We know that one light year equals to 0.306601 parsecs. To convert 6.5 light-years to parsecs, we will multiply 0.306601 by 6.5.

$6.5\text{ Light-years}=6.5\times 0.306601\text{ Parsecs}$

$6.5\text{ Light-years}=1.9929065\text{ Parsecs}$

$6.5\text{ Light-years}\approx 1.99\text{ Parsecs}$

Therefore, Luhman 16 is approximately 1.99 parsecs away from the Earth.

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3 years ago

What is your least favorite candy? Explain

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Answer:

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3 years ago

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You are throwing a stone straight-up in the absence of air friction. The stone is caught at the same height from which it was th

balu736 [363]

Answer:

A. True

Explanation:

When a stone is thrown straight-up, it has an initial velocity which decreases gradually as the stone move to maximum height due to constant acceleration due to gravity acting downward on the stone, at the maximum height the final velocity of the stone is zero. As the stone descends the velocity starts to increase and becomes maximum before it hits the ground.

Height of the motion is given by;

$H = \frac{u^2}{2g}$

g is acceleration due to gravity which is constant

H is height traveled

u is the speed of throw, which determines the value of height traveled.

Therefore, when the stone is caught at the same height from which it was thrown in the absence of air resistance, the speed of the stone when thrown will be equal to the speed when caught.

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3 years ago