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slega [8]
3 years ago
10

Calculate the potential energy stored in an object of mass 50 kg at a height of 20 m from the ground.

Physics
2 answers:
bearhunter [10]3 years ago
8 0

Answer:

potential energy=mgh

=50×10×20

=10000 J

NARA [144]3 years ago
3 0

Answer:

\huge\boxed{\sf P.E. = 10 kJ}

Explanation:

<u>Given Data:</u>

Mass = m = 50 kg

Height = h = 20 m

Acceleration due to gravity = g = 10 m/s²

<u>Required:</u>

Potential Energy = P.E. = ?

<u>Formula:</u>

P.E. = mgh

<u>Solution:</u>

P.E. = (50)(20)(10)

P.E. = 10,000 Joules

P.E. = 10 * 10³ Joules (10³ = Kilo)

P.E. = 10 kJ

\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>

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8 0
2 years ago
what is the distance a train can travel if its speed is 20mph over a time of 5.6 hours (show all 3 steps)
erik [133]

Answer:

distance = 112 miles

Explanation:

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2 years ago
Determine the kinetic energy of a 10 Kg roller coaster car that is moving with a speed of 2m/s.
skelet666 [1.2K]

In this question all required information's are already provided. Based on these details the answer to the question can be easily determined. Let us now write down all the information's that are already given.

Mass of the roller coaster = 1000 kg

Velocity of the roller coaster = 20.0 m/s

We know the formula for finding the kinetic energy is

Kinetic energy = 0.5 * mass * (velocity) ^2

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So the Kinetic energy of the roller coaster is 200000 joules.

i hope this helps you friend good luck on your quiz or lesson

6 0
2 years ago
What do we mean when we say that energy levels are quantized in atoms?
jek_recluse [69]

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Explanation:

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A confirmation of Bohr's model is found in the spectrum of emission of gases. In fact, when an electron jumps from a higher energy level to a lower energy level, it emits a photon whose energy is exactly equal to the difference in energy between the two levels: since the energy levels are discrete, this means that the emitted photons cannot have any value of wavelength, but also their wavelength will appear as a discrete spectrum. This is exactly what it is observed in the spectrum of emission of gases.

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3 years ago
Is the matching correct?
iragen [17]

Yes thats right :)

have a great day!!!


7 0
3 years ago
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