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Citrus2011 [14]
2 years ago
9

A lamp marked 100w 250v is lit up for 10hours, costs 2I what is the cost of lighting the lamp ​

Physics
1 answer:
olga nikolaevna [1]2 years ago
3 0

Answer:

2k

Explanation:

100W X 10h = 1000Wh = 1KWh thus cost is 2k

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Which of the following is the smallest conceivable amount of time that could pass between a lunar eclipse and a solar eclipse .
pickupchik [31]
The time required for a moon to orbit around the earth is about 27-28 days

In order for lunar eclipse to occur the line that should be formed is:
Sun-Earth-Moon
because earth is making shade on moon

in order for solar eclipse to occur the line is now:
Sun-Moon-Earth
because moon is making a shade on earth (blocking sun = solar eclipse)

Therefore moon needs to make half of its orbit to go from behind the earth to in front of the earth.

28/2 = 14

Answer is 14
5 0
2 years ago
What cloud makes hail
MArishka [77]

Answer:

Cumulonimbus

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Explanation:

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2 years ago
A ball with a mass of 5.0 g is moving at a speed of 2.0 m/s. Would doubling the mass or doubling the speed have a greater effect
Sloan [31]

Answer:

Explanation:

doubling the speed will have a greater impact on kinetic energy as KE is a product of mass and the square of velocity.

KE = ½mv²

Base KE = ½(0.005)2.0² = 0.01 J

doubling the mass

        KE = ½(0.010)2.0² = 0.02 J

doubling the velocity

        KE = ½(0.005)4.0² = 0.04 J

8 0
3 years ago
The density of air on the Earth decreases almost linearly with height from 1.22kgm–3 at sea level
Paraphin [41]
P = 10^5 - ρ (average)gh

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we know g & h

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3 years ago
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Fittoniya [83]
The North American one is im pretty sure divergent boundary but no so 100% on it
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3 years ago
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