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Fudgin [204]
2 years ago
5

As the hot gas from a space shuttle is released downward, what does this cause to happen?

Physics
1 answer:
andrew11 [14]2 years ago
8 0

Answer:

D. Upward force on the shuttle

Explanation:

The hot gas from space shuttles released downward causes an upward force on the shuttle and propels it up the more.

  • This hot gas is produced from super cooled oxygen and hydrogen tanks within the shuttle.
  • The upward force on the shuttle allows the craft to escape the gravitational pull of the earth on the shuttle
  • Special level of rapid acceleration must be attained for the shuttle to escape the earth pull.
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The initial volume reading in a graduated cylinder is 30 mL. The mass of an irregular shape of an unknown metal piece is 55.3 g.
Vadim26 [7]

Answer:

7.9\frac{gr}{cm^3}

Explanation:

When we put the metal piece in the liquid (which is in the graduated cylinder), how much it goes up is equal to the volume of the piece we inserted.

So now we know that the volume of that piece of unknown metal is 7mL (which is the same as 7cm^3).

Density is \frac{mass}{volume}.

So the density of that piece of metal is \frac{55.3g}{7cm^3}

Which leaves us with a final density of 7.9\frac{gr}{cm^3}

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3 years ago
The tendency of an object to resist any change in its motion is known as?
kvv77 [185]
It's inertia. A rule that you see every day, for example a brick will stay in the same spot unless a force acts on it.
7 0
3 years ago
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A pilot heads his jet due east. The jet has a speed of 475 mi/h relative to the air. The wind is blowing due north with a speed
oksian1 [2.3K]

Explanation:

a. The velocity of the wind as a vector in component form will be represented as v vector:

    v=30j

b.The velocity of the jet relative to the air as a vector in component form will be represented as u vector

    u=475i

c. The true velocity of the jet as a vector will be represented as w:

  w=u+v

  w=475i+30j

d.  The true speed of the jet will be calculated as:

    IwI=\sqrt{(475)^2+(30)^2}

    IwI=\sqrt{225625+900}

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    IwI=476 mi/h

e. The direction of the jet will be:

tita=tan^{-1}\frac{30}{475}

tita=tan^{-1}(0.0632)

tita=3.62degrees,or,N86.38degreesS

7 0
2 years ago
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Explanation:

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2.) When noise is added to analogue signals, it usually sounds like background hiss. Such noise can not be removed so the original clean signal can not be re-created or re-generated.

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3 years ago
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Power is the rate at which work is done (2nd option)
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3 years ago
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