A filtergram is a photograph of the sun's surface made
a. in a band of wavelengths in the infrared.
b. in a band of wavelengths in the ultraviolet.
c. using the Zeeman effect.
d. with only those photons emitted in a specific spectral line.
e. none of the above
D
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When a tensile stress is applied to a composite material with short fibers, the tensile stress in the matrix is transferred into the fibers by _________stress between the matrix and the fiber.
Fill in the blank(s) with the appropriate word(s).
A gas in which the pressure no longer depends on the temperature of the gas is said to be ____________________
Fill in the blank(s) with correct word
Your friend left your house and is now driving 40 miles per hour, but she has been speeding up the whole time since she left your house, and has gone 10 miles. How long has she been driving?
A) shorter than 15 minutes B) longer than 15 minutes C) 15 minutes
A 100-m long transmission cable is suspended between two towers. If the mass density is 2.01 kg/m and the tension in the cable is 3.00 × 10^4 N, what is the speed of transverse waves on the cable?
a. 60 m/s b. 122 m/s c. 244 m/s d. 310 m/s e. 1 500 m/s