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Tresset [83]
3 years ago
7

The Tesla Roadster electric car is rated at 16.8kW. How much energy does it use during a one hour drive? Answer in MJ

Physics
2 answers:
Soloha48 [4]3 years ago
7 0

Answer:

E = 60.5 MJ

Explanation:

As we know that power is defined as rate of energy

So we will have

P = \frac{E}{t}

so we will have

E = P \times t

P = 16.8 kW

t = 1 hour

t = 3600 s

now we have

E = (16.8 \times 10^3)(3600)

E = 60.5 MJ

ASHA 777 [7]3 years ago
6 0

(16.8 kW) means (16,800 joules/second)

Energy in 1 hour = (1 hour) x (16,800 J/s) x (3,600 s/hour)

Energy = (16,800 x 3,600) J

Energy =  60,480,000 Joules

Energy = 60.48 MJ

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All household circuits are wired in parallel. A 1140-W toaster, a 270-W blender, and a 80-W lamp are plugged into the same outle
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Answer:

total current = 12.417 A

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given data

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solution

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total current = 12.417 A

so it will not fuse as current is less than 15 A

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