A transverse periodic wave is represented by the equation z(y, t) = 1.50 cm sin(1,250 rad/s t + 10.0
y). What is the frequency of the vibration of the wave?
A. 319 Hz
B. 289 Hz
C. 240 Hz
D. 199 Hz
E. 150 Hz
D. 199 Hz
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The sky is dark at night:
A) because the stars in the Milky Way are far away. B) because the Sun is on the other side of Earth. C) because there are far fewer stars on the night side of Earth. D) because all the light from all the objects in the universe hasn't arrived here yet. E) because the quasars are too far away from Earth for their light to have arrived here.
A proton has a speed of 3.0 × 106 m/s in a direction perpendicular to a uniform magnetic field, and the proton moves in a circle of radius 0.20 m. What is the magnitude of the magnetic field?
A) 0.040 T B) 0.080 T C) 0.16 T D) 0.24 T E) 0.32 T
The constant G that appears in the equation F = Gm1m2/r2 is
a. smaller on the Moon than on Earth. b. the force of gravity. c. equal to g. d. the acceleration due to gravity. e. a universal constant.
When water boils, its temperature __________
Fill in the blank(s) with correct word