As you move farther away from a source emitting a pure tone, the ___________ of the sound you hear decreases
a. frequency
b. period
c. wavelength
d. amplitude
e. none of the above
D
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If a red filter were placed in front of blue dungarees, you would see
A) white. B) green. C) blue. D) red. E) black.
A rectangular steel plate with dimensions of 40.0 cm × 30.0 cm is heated from 14.0°C to 164.0°C. What is its change in area? (Coefficient of linear expansion for steel is 11 × 10^?6/C°.)
a. 8.96 cm2 b. 29.7 cm2 c. 3.96 cm2 d. 1.32 cm2 e. 9.90 cm2
A coil of 160 turns and area 0.20 m2 is placed with its axis parallel to a magnetic field of 0.40 T. The magnetic field changes from 0.40 T in the x-direction to 0.40 T in the negative x-direction in 2.0 s
If the resistance of the coil is 16 ?, at what rate is power generated in the coil? A) 5.0 W B) 10 W C) 15 W D) 20 W E) 25 W
The geology of Venus appears to be dominated by
a. volcanism. b. plate tectonics. c. erosion by flowing water. d. impact cratering. e. strip mining.