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Strike441 [17]
4 years ago
15

Undersoil electrical heating systems are used in greenhouses. This system could also be

Physics
1 answer:
Nata [24]4 years ago
4 0

Answer:t

Explanation:

Given that,

Power output is

P = 0.50kW = 0.5 × 1000 = 500W.

We want to find energy transfer in

t = 2minutes = 2 × 60 = 120 seconds

Also, time to hour

t = 2/60 = 1/30 hour

Power is the rate of energy.

Therefore,

Power = energy / time taken

Energy = power × time taken

Energy = 0.5kW × 1/30 hr

Energy = 0.01667 kWh

Also, energy in Joule

Energy = power × time

Energy = 500W × 120s

Energy = 60,000J

Energy = 60kJ.

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Answer:

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Explanation:

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<u>v₀ = 16.55 m/s</u>

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3 years ago
Whats mechanical energy mean
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Mechanical energy<span> is the sum of kinetic and potential </span>energy<span> in an object that is used to do work. In other words, it is </span>energy<span> in an object due to its motion or position, or both.

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5 0
3 years ago
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why does chelsea see sparks as she removes her clothes from the clothes dryer? conduction. induction. static discharge. loss of
ollegr [7]

Answer:

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Explanation:

The conduction of static energy is pulled throughout the clothes and left over static electricity is what causes the spark.

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Answer:

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