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Question
A solid wheel with mass M,radius R, and rotational inertia MR2/2, rolls without sliding on a horizontal surface. A horizontal force Fis applied to the axle and the center of mass has an acceleration a. The magnitudes of the applied force F and the frictional force f of the surface, respectively, are:A) F= Ma, f= 0
B) F= Ma, f= Ma/2
C) F= 2Ma, f= Ma
D) F= 2Ma, f= Ma/2
E) F= 3Ma/2, f= Ma/2
Answer
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Related questions
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Q:
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Q:
In a photoelectric effect experiment at a frequency above cut off, the stopping potential is proportional to:
A) the energy of the least energetic electron before it is ejected
B) the energy of the least energetic electron after it is ejected
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D) the energy of the most energetic electron after it is ejected
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Q:
In a photoelectric effect experiment at a frequency above cut off, the number of electrons ejected is proportional to:
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Q:
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Q:
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Q:
A particle with zero mass and energy Ecarries momentum:
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Q:
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Q:
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Q:
A meter stick moves sideways (that is, in a direction perpendicular to its length) at 0.95c. According to measurements taken in the laboratory, its length is:
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Q:
Pi mesons at rest have a half-life of T.If a beam of pi mesons is traveling at a speed of, the distance in which the intensity of the beam is halved is:
Q:
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Q:
Figure (i) shows a double-slit pattern obtained using monochromatic light. Consider the following five possible changes in conditions:
1) decrease the frequency
2) increase the frequency
3) increase the width of each slit
4) increase the separation between the slits
5) decrease the separation between the slits
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B) 5 only
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D) 1 and 5 only
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Q:
The resolving power of a telescope can be increased by:
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B) increasing the lens diameters
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Q:
Light of wavelength 480 nm falls on a slit of width 3.5 m. What is the relative intensity (that is, the value of I/Im) of the diffraction pattern at an angle of 18?
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C) 1.1 x 10-2
D) 1.0 x 10-1
E) 1.0
Q:
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