Physics
7th Edition
ISBN: 9780321733627
Author: Douglas C. Giancoli
Publisher: PEARSON
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Chapter 4, Problem 12MCQ
The normal force on an extreme skier descending a very steep slope (Fig. 4-42) can be zero if
a. his speed is great enough.
b. he leaves the slope (no longer touches the snow).
c. the slope is greater than 75°.
d. the slope is vertical (90°).
Figure 4-42
MisConceptual Question 12.
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T1. Calculate what is the received frequency when the car drives away from the radar antenna at a speed v of a) 1 m/s ( = 3.6 km/h), b) 10 m/s ( = 36 km/h), c) 30 m /s ( = 108 km/h) . The radar transmission frequency f is 24.125 GHz = 24.125*10^9 Hz, about 24 GHz. Speed of light 2.998 *10^8 m/s.
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Chapter 4 Solutions
Physics
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Problem 21.
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