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Mazyrski [523]
3 years ago
8

find the potential energy of an aircraft weighing 10000 bs at 5000 ft true altitude and 125 kts true air speed

Physics
1 answer:
Cloud [144]3 years ago
6 0

Answer:

U=5*10^7ft.Ib

Explanation:

From the question we are told that

Weight  W= 10000bs

Altitude H=5000ft

Speed    V=125kts\\1kts=0.514m/s\\V=125*0.514=>64.25m/s

Generally the equation for Potential energy ids mathematically given as

Potential\ Energy\ U=mgh

U=Wh

U=10000*5000

U=5*10^7ft.Ib

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A column of water exerts a pressure of 100.Pa and a force of 2.40 N. What is the cross-sectional area of a the column?
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Train cars are coupled together by being bumped into one another. Suppose two loaded train cars are moving toward one another, t
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Their final velocity is 0.103 m/s

Explanation:

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mass of the first car, m₁ = 130,000 kg

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initial velocity of the second car, u₂ = -0.120 m/s

Let their final velocity, = v (since they were coupled together, they will have common final velocity)

Apply the principle of conservation of linear momentum;

Total momentum before collision = Total momentum after collision

m₁u₁ + m₂u₂ = v(m₁ + m₂)

(130,000 x 0.3) + (115,000 x -0.12) = v(130,000 + (115,000)

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6 0
3 years ago
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