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Arte-miy333 [17]

2 years ago

10

What is the suns purpose

1 answer:

Bumek [7]2 years ago

7 0

Answer:

The Sun provides Life to the Earth

Explanation:

The Sun is made up of mostly Hydrogen and some Helium, and it is in delicate balance with both gravity trying to pull it in while the power of fusion pushes it outwards. The fusion creates energy, which is used to keep our delicate world in balance with the sun.

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a sample of ideal gas is originally at 40 degrees celsius. what is the final temperature of the gas if the volume is doubled and

Assoli18 [71]

Answer:

313 K or 40 degree celsius.

Explanation:

Initial , $V_{i}=V_{0}$

$P_{i}=P_{0}$

$T_{i} =40+273=313K$

Now, final

$P_{f} =\frac{1}{2}P_{0}$

$V_{f} =2V_{0}$

Combined the ideal gas law

$\frac{P_{i}V_{i}}{T_{i}}=\frac{P_{f}V_{f}}{T_{f}} \\\frac{P_{0}V_{0}}{T_{0}}=\frac{1}{2} \frac{P_{0}2V_{0}}{T_{f}} \\T_{f}=T_{0}\\T_{f}=313K$

Therefore, the final temperature of ideal gas is 313 K.

4 0

4 years ago

A student runs a 400m race around the school track in 65 seconds. At the start of the race, the student accelerates to a speed o

taurus [48]

Answer:

2.7 m/s²

Explanation:

Average acceleration is change in velocity over change in time. Assuming the acceleration is constant, we can say it is equal to the average:

a = Δv / Δt

a = (6.0 m/s - 0 m/s) / 2.2 s

a ≈ 2.7 m/s²

5 0

3 years ago

1. (1 pt) Which of these is a physical property of wood? A. Wood can burn. B. Wood can rot. C. Wood does not rust. D. Wood is so

anygoal [31]

A physical property can be seen or a change in color.
The answer is B because you can see when wood is rotting.

3 0

4 years ago

A uniform disk with a mass of 5.0 kg and diameter 30 cm rotates on a frictionless fixed axis through its center and perpendicula

Marina86 [1]

Answer: $\alpha =10.66 rad/s^2$

Explanation:

Given

mass of disk $m=5 kg$

diameter of disc $d=30 cm$

Force applied $F=4 N$

Now this force will Produce a torque of magnitude

$T=F\cdot r$

$T=4\dot 0.15$

$T=0.6 N-m$

And Torque is given Product of moment of inertia and angular acceleration $(\alpha )$

$T=I\cdot \alpha$

Moment of inertia for Disc $I= \frac{Mr^2}{2}$

$I=0.05625 kg-m^2$

$0.6=0.05625\cdot \alpha$

$\alpha =10.66 rad/s^2$

3 0

3 years ago

What is the highest energy of radiation?

ser-zykov [4K]

Gamma rays ..........................

6 0

4 years ago