Consider a deer that runs from point A to point B. The distance the deer runs can be greater than the magnitude of its displacement, but the magnitude of the displacement can never be greater than the distance it runs
A) True
B) False
A
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Refracting Telescope: The objective and the eyepiece of a refracting astronomical telescope have focal lengths of 320 cm and 4.0 cm, respectively. The telescope is used to view Neptune and the final image is set at infinity. The diameter of Neptune is 4.96 × 107 m, and its distance from Earth at the time of observation is 4.4 × 1012 m. What is the angle (in milliradians) subtended by the final telescopic image of Neptune?
A. 0.90 mrad B. 1.1 mrad C. 1.3 mrad D. 1.5 mrad E. 1.7 mrad
While driving fast around a sharp right turn, you find yourself pressing against the car door. What is happening?
A. The door is exerting a rightward force on you. B. Centrifugal force is pushing you into the door. C. Both of the above. D. Neither of the above.
Which of the following sources of electric power is NOT an example of a heat engine?
A. Fossil fuels B. Geothermal C. Wind energy D. Flat plate solar collectors
In what ways is Earth different from the other terrestrial planets?
A) Most of its surface is covered with liquid water. B) It has oxygen in its atmosphere. C) Its lithosphere is broken into plates that move around. D) Life can be found almost everywhere. E) All of the above are true.