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Simora [160]
3 years ago
9

How much energy in Joules (J) would an electric heater that draws 9.5 A when connected to a 120 V supply use if the heater were

allowed to run for 2 hours.
Physics
1 answer:
leonid [27]3 years ago
7 0
<h2>Energy used by heater is 8.21 x 10⁶ J</h2>

Explanation:

Energy = Power x Time

Power = Voltage x Current

Voltage = 120 V

Current = 9.5 A

Power = Voltage x Current

Power = 120 x 9.5 = 1140 W

Time = 2 hours = 2 x 60 x 60 = 7200 s

Energy = Power x Time

Energy = 1140 x 7200

Energy = 8208000 J

Energy used by heater is 8.21 x 10⁶ J

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Answer:

-292 degrees F

Explanation:

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2 years ago
The Earth’s diameter is about 8,000 miles; our Moon’s diameter is about 2,000 miles; how
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Three moons can fit inside the volume of the sun.

<h3>What is the moon?</h3>

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Since the Earth’s diameter is about 8,000 miles and the Moon’s diameter is about 2,000 miles, to obtain the number of moons that could fit inside the sun we have;

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2 years ago
1. A baseball is thrown vertically at 16.7 m/s. What is the maimum height of the baseball?
Anvisha [2.4K]

Answer:

14.2 m

Explanation:

Using conservation of energy:

PE at top = KE at bottom

mgh = ½ mv²

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Using kinematics:

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a = -9.8 m/s²

Find: Δy

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3 years ago
You push a coin across a table. The coin stops. How does this motion relate to balanced and unbalanced forces?
Snezhnost [94]
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anyanavicka [17]

Answer:

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Explanation:

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3 years ago
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