3 years ago

Which statement about atmospheric pressure near earth's surface is true

1 answer:

7 0

The correct answer is it decreases as someone moves away from earth's surface.

The atmospheric pressure decreases when you go near the surface of the earth. Atmospheric pressure can also be referred to as barometric pressure.

This is the pressure which is being found in the earth's atmosphere. It is approximated by pressure of hydrostatic which is known to be caused by weight of air where the measurement points are above.

When elevation increases, there is decrease in atmospheric pressure.

Force per unit are is measured by pressure.

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An object has 90,000 J of kinetic energy and is moving at 12 m/s. What is the objects mass?

trapecia [35]

Answer:

plug it into your calculator

Explanation:

Kinetic energy = KE = Joules = J

KE= 1/2mv^2

90,000 = 1/2 m (12^2)

180,000 = m (144)

m = 180,000 / 144

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4 years ago

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Answer:

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3 years ago

Which of the following is an example of heat being transferred by radiation? Choose all that apply, Fire, Sun, Candle Flame, Sto

OlgaM077 [116]

Answer:

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3 years ago

Read 2 more answers

Find the circumference of a circle whose area is 452.16 square meters. (Use 3.1416 as the value of .)

kakasveta [241]

1) The area of a circle is given by

$A=\pi r^2$

where r is the radius of the circle. In this problem, we are told that the area is

$A=452.16 m^2$

so we can rearrange the previous equation to calculate the radius:

$r=\sqrt{\frac{A}{\pi}}=\sqrt{\frac{452.16 m^2}{3.1416}}=12.0 m$

And now we can find the circumference, by using the formula:

$c=2 \pi r=2 \pi (12.0 m)=75.3984 m$

Therefore, the correct answer is D. 75.3984 meters.

2) The volume of a cube is given by:

$V=L^3$

where L is the length of the edge. In this problem, L=6 cm, therefore the volume of the cube is

$V=L^3=(6 cm)^3=216 cm^3$

and so, the correct answer is A. 216 cu. cm.

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4 years ago

What if there is no subscript for a element?

Scorpion4ik [409]

Well no elements then no energy for our body we would probably be dead -__-

7 0

3 years ago