You run directly towards a plane mirror at 5 m/s. How fast do you approach your image?
A)
0 m/s
B)
5 m/s
C)
7 m/s
D)
10 m/s
E)
2 m/s
D
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If the magnetic field in a traveling electromagnetic wave has a maximum value of 16.5 nT, what is the maximum value of the electric field associated with this wave? (c = 3.00 × 108 m/s)
A) 5.5 × 10-17 V/m B) 4.95 V/m C) 0.495 V/m D) 55.0 × 10-16 V/m E) 55.0 × 10-15 V/m
Spring tides and neap tides are caused solely by the effects of the Sun
Indicate whether the statement is true or false
A certain kind of lightbulb carries 0.5 amperes of current when connected to a 120 volt AC circuit. What is its power rating?
A. 75 W B. 240 W C. 100 W D. 60 W
A mole of oxygen (O2) molecules and a mole of carbon dioxide (CO2) molecules at the same temperature and pressure have
A) the same average molecular speeds. B) the same number of atoms. C) different average kinetic energy per molecule. D) the same number of molecules. E) different volumes.