Ultraviolet radiation cannot be used for solar cells because its energy is too low

What will be an ideal response?


Ultraviolet radiation actually has a greater energy than that of visible light. The
problem is more that there is such a small amount of ultraviolet available.

Physics & Space Science

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Consider two long, straight parallel wires, each carrying a current I. If the currents are flowing in the same direction:

a. the two wires will attract each other. b. the two wires will repel each other. c. neither wire will exert a force on the other. d. the two wires will exert a torque on each other.

Physics & Space Science

When the Sun becomes a white dwarf with a surface temperature similar to its current surface temperature, what will its luminosity be?

What will be an ideal response?

Physics & Space Science

A force-carrying particle is a(n)

a. lepton. b. baryon. c. meson. d. intermediate (or gauge) boson. e. hadron.

Physics & Space Science

The __________ moon is visible above the western horizon a couple of hours before sunrise

a. waning gibbous b. waxing gibbous c. waxing crescent d. waning crescent e. new moon

Physics & Space Science