3 years ago

Which best defines the skeletal system?

Physics

1 answer:

slamgirl [31]3 years ago

6 0

I’d say B is the best choice

Hope this helps

-AaronWiseIsBae

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Pls answerrrrr thisssss

Jobisdone [24]

The amplitude of wave-c is 1 meter.

The speed of all of the waves is (12meters/2sec)= 6 m/s.

The period of wave-a is 1/2 second.

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4 years ago

What forces are used to jump over a wall?

k0ka [10]

Answer:

Potential and kinetic

Explanation:

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3 years ago

Which renewable resource produces the most electricity in the United States? geothermal energy solar energy wind power hydroelec

Anna71 [15]

Hydroelectricity is the best answer.

This is an article by the EIA, but the pie graph is the most helpful: https://www.eia.gov/energyexplained/?page=us_energy_home

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3 years ago

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A hydraulic machine can be used to lift extremely heavy objects. Why is the fluid in the hydraulic machine a liquid rather than

Sauron [17]

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The force that acts on hydraulic machine is heavy therefore the content must be something that cannot be compressed by that kind of force, the gas can easily be compressed while a liquid is nearly impossible to.

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3 years ago

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How far would a spacecraft moving in a circular orbit 500 km above Pluto's surface travel during that time?

Ilia_Sergeevich [38]

Answer:

The speed of the spacecraft should be 719.35m/s

Explanation:

if the spacecraft is orbiting the planet with a circular orbit, the gravitational force must act as a centripetal force. This means:

$F_G=F_c\\\frac{GmM}{d^2}=m\frac{v^2}{d}$

In this case, the pluto's mass M is 1.3099·10^22 kg. The radius of the planet R is 1188.3Km and G is the gravitational constant. Therefore:

$\displaystyle\frac{G M}{d^2}=\frac{v^2}{d}\\v=\sqrt{\frac{GM}{d} } =\sqrt{\frac{GM}{(R + 500km)} } =719.35m/s$

7 0

3 years ago