The resistance of a wire does not change when its temperature changes
a. True
b. False
Indicate whether the statement is true or false
False
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If expresses the relationship between Kelvin temperature and the wavelength of maximum intensity in nanometers, what is the wavelength in nanometers of maximum intensity for a star with a surface temperature of 7,250K?
What will be an ideal response?
Compressions and rarefactions are characteristics of
A) longitudinal waves. B) transverse waves. C) both of these D) need more information
Which of the following statements about sidereal and solar days is not true?
A) A sidereal day is the definition of a day on the Earth and a solar day is the definition of a day on the Sun. B) A solar day is approximately 4 minutes longer than a sidereal day. C) A solar day is the amount of time between successive appearances of the Sun on our meridian. D) A sidereal day is the amount of time between successive appearances of any star on our meridian.
At what rate is thermal energy generated in the 5-? resistor when ? = 24 V?
A. 13 W B. 3.2 W C. 23 W D. 39 W E. 51 W