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.
Auto answered|Score 1|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.
Infrared light, microwaves and radio waves have wavelengths longer than visible light. Radio waves have the longest wavelength.Auto answered|Score 1|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. - - - [http://openstudy.com/updates/5038ccade4b0602a15b2caf7
]Auto answered|Score .6|vanilla2bean|Points 4116|User:
Identify two types of nuclear reactions in which the equation E = mc2 applies.Weegy:
Fission and FusionAuto answered|Score 1|Polio123|Points 357|User:
The magnetic field lines of a bar magnet begin near the magnet’s ____________________.
Begin near the close linesAuto answered|Score 1|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.
Auto answered|Score 1|wiwit|Points 688|User:
The law of reflection states that the angle of reflection is equal to the angle of ____________________.
The angle of reflection is equal to the angle of incidence.Auto answered|Score .6|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:
]Auto answered|Score .6|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. ] Auto answered|Score 1|Sting|Points 2250|User:
The universal force that is effective over the longest distances is ____________________.Weegy:
magneticAuto answered|Score 1|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. Auto answered|Score 1|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.
static friction is usually greater than sliding friction.
Auto answered|Score 1|koaley|Points 6262|
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