A 20.0 cm wrench is used to generate a torque at a bolt. A force of 50 N is applied at the end of the wrench at an angle of 60.0 degrees to the wrench. The torque generated at the bolt is
A. 4.9 N•m.
B. 5.7 N•m.
C. 6.0 N•m.
D. 7.5 N•m.
E. 8.7 N•m.
E. 8.7 N•m.
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A) have bluer stars. B) show more internal structure. C) have no arms, but a better defined disk. D) have more dust. E) show no evidence of ongoing star formation.
Apparent weightlessness can be experienced in freely falling elevator
Indicate whether the statement is true or false
A ray of light is incident on a liquid-to-glass interface at an angle of 34.1°. Indices of refraction for the liquid and glass are, respectively, 1.93 and 1.64 . What is the angle of refraction for the ray moving through the glass?
a. 23.9° b. 28.5° c. 41.3° d. 29.0° e. 40.6°
If a long spring with spring constant k is cut into 3 equal lengths, what is the spring constant of each of the 3 shorter springs?
a. It is still k. c. It is k/3. b. It is 3k. d. It is k/9.