3 years ago

As the space shuttle orbits the Earth, the shuttle and the astronauts

Physics

1 answer:

morpeh [17]3 years ago

7 0

The answer is B. Weightlessness

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A ball is kicked from the ground into the air at a velocity of 3 m/s at an angle 35° above the horizontal and hits the ground so

Dennis_Churaev [7]

Answer:2.45 m/s

Explanation:

Given

Launch velocity $(u)=3 m/s$

launch angle $=35^{\circ}$

as the vertical velocity first decreasing to zero and then increases to original value so its avg is zero .

$v_{avg}=\frac{displacement}{time}$

$v_{avg}=\frac{Range}{time}$

$v_{avg}=\frac{u\cos \theta \times t}{t}$

thus $v_{avg}=\frac{3\cos 35\times t}{t}$

$v_{avg}=3\cos 35=2.45 m/s$

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3 years ago

1. What is the gravitational force between two 4 kilogram masses separated by a distance of 5

Anon25 [30]

Yo, I assumed that this situation occurs on Earth otherwise the answer would be different.

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3 years ago

HELP ASAP PLS. ILL GIVE BRAINLIEST

Blizzard [7]

Answer:

I'm not completely sure, but I believe the first and third of the three are mechanical.

Explanation:

Chemical potential isn't moving or about to go into motion. It can't be mechanical.

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3 years ago

A certain gas is compressed adiabatically. The amount of work done on the gas is 800 J. What is the change in the internal (ther

Black_prince [1.1K]

Answer:

800J

Explanation:

Using the formula for change in the internal energy of a system

∆U = Q - W

Q = heat added to the system

W =workdone by system.

We know the process is an adiabatic one then, there no addition/ removal of heat, then Q= 0

(∆U = -W )

Then substitute for W, we have

∆U = -[-800]

∆U= 800J

∆U = 800J

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3 years ago

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QveST [7]

Joule

hope this helps :)

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3 years ago