A nail is stuck into the side of a car tire. As the car drives down a level road at constant speed, which of the following is simple harmonic motion?
A)
the motion of the center of the tire
B)
the vertical component of motion of the nail
C)
the horizontal component of motion of the nail
D)
both answers A and B
E)
none of the above
B
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Which of the following represents the "Mechanical Equivalent of Heat"?
A) 1 ft-lb = 1.36 Joules B) 1 cal = 3.97 × 10-3 BTU C) 1. eV = 1.6 × 10-19 J D) 1. J = 1 kg?m2 / s2 E) 1.00 J = 0.239 cal
Public health often arouses controversy on moral grounds, most often when it confronts what type of issues?
What will be an ideal response?
A nonrelativistic proton is confined to a length of 2.0 pm on the x-axis. What is the kinetic energy of the proton if its speed is equal to the minimum uncertainty possible in its speed?
(1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ? s, mproton = 1.67 × 10-27 kg) A) 5.1 eV B) 51 eV C) 510 eV D) 5100 eV E) 51,000 eV
Relative Velocity: An airplane with an airspeed of 140 km/h has a heading of 50° west of north in a wind that is blowing toward the east at 25 km/h. What is the groundspeed of the plane?
Fill in the blank(s) with the appropriate word(s).