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Question and answer
Q: How much energy does a 50-watt light bulb use compared to a 100-watt light bulb if both are shining for the same length of time? Explain your answer.
A: Energy = power * time. So, The 100W bulb uses double the energy of the 50W bulb.
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Original conversation
User: How much energy does a 50-watt light bulb use compared to a 100-watt light bulb if both are shining for the same length of time? Explain your answer.

Weegy: Energy = power * time. So, The 100W bulb uses double the energy of the 50W bulb.
may100|Points 2316|

User: Which waves have wavelengths longer than those of visible light? Give an example of how each kind of wave is used.

Weegy: Infrared light, microwaves and radio waves have wavelengths longer than visible light. Radio waves have the longest wavelength.
chd@23|Points 0|

User: Explain how energy is conserved in a heat pump.

Weegy: in a heat pump, work input allows heat to be transferred from the cooler reservoir to the warmer. Hence: work provided + heat released by the cooler res. = heat received by the warmer res. - - -
vanilla2bean|Points 4116|

User: Identify two types of nuclear reactions in which the equation E = mc2 applies.

Weegy: Fission and Fusion
Polio123|Points 357|

User: The magnetic field lines of a bar magnet begin near the magnet’s ____________________.

Weegy: Begin near the close lines
MrG|Points 3164|

User: The region where a magnet's force is strongest is at the________________________

Weegy: The region where a magnet's force is strongest is at its poles.
wiwit|Points 688|

User: The law of reflection states that the angle of reflection is equal to the angle of ____________________.

Weegy: The angle of reflection is equal to the angle of incidence.
pi728|Points 10|

User: When a person plucks a guitar string, the number of half wavelengths that fit into the length of the string determines the ____________________ of the sound produced.

Weegy: Answer: pitch Ref:
bellepepper|Points 145|

User: As an object’s temperature increases, the ____________________ at which it radiates energy increases.

Weegy: rate; how is energy "radiated" from the following- a heated piece of platinum metal; a fluorescent light; an incadescent light; the human body As an object?s temperature increases, [ the rate at which it radiates energy increase. ]
Sting|Points 2250|

User: The universal force that is effective over the longest distances is ____________________.

Weegy: magnetic
xixu93|Points 125|

User: In a closed system, the loss of momentum of one object ____________________ the gain in momentum of another object.

Weegy: In a closed system, the loss of momentum of one object is Equal To the gain in momentum of another object.
sunny4691|Points 983|

User: It usually takes more force to start an object sliding than it does to keep an object sliding because static friction is usually ____________________ than sliding friction.

Weegy: static friction is usually greater than sliding friction.
koaley|Points 6262|

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Asked 3/2/2013 12:40:56 PM
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