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RoseWind [281]
2 years ago
11

When preparing for a rocket launch, the mission control center uses the phrase "T minus" before liftoff. ...T minus 3, T minus 2

, T minus 1, ... After the rocket has launched, "T plus" is used while the rocket is in flight. ...T plus 1, T plus 2, T plus 3, ... When does the rocket launch? What does "T" represent?
Physics
1 answer:
yKpoI14uk [10]2 years ago
6 0

Answer: The "T" in rocket launch

Explanation:

This tells the Mission Control What will be happening

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What is a molecule called when it has more than one element?
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ivanzaharov [21]

Answer:

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A .100 kg bullet is flying at 200 m/s. How much energy is the bullet storing due to its motion?
morpeh [17]

KE = 2000 J

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4 0
2 years ago
(b) A piece of wood of volume 0.6 m² floats in water. Find the volume
enot [183]

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Explanation:

Let the volume below water be v . Then

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weight of wood piece = volume x density of wood x g

= .6 x 600 x g

for equilibrium while floating

buoyant force = weight

= v x 1000 x g  =  .6 x 600 x g

v = .36 m²

volume above water or volume exposed = .6 - .36

= .24 m²

When immersed completely ,

buoyant force = .6 x 1000 x 9.8

= 5880 N

weight of wood

=  .6 x 600 x g

= 3528 N

buoyant force is more than the weight . In order to equalise them for floating with full volume in water

weight required = 5880 - 3528

= 2352 N.

6 0
3 years ago
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