An oscillating system has a small amount of damping. It is observed that in the course of 20.0 s the amplitude has decreased from A to A/2. What additional time is required for the amplitude to decrease to A/4?
What will be an ideal response?
20.0 s
Physics & Space Science
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If we use 67 W of power to heat 148 g of water, how long will it take to raise the temperature of the water from 15°C to 25°C? The specific heat of water is 4190 J/kg ? K
A) 93 s B) 5.3 s C) 22 s D) 114 h
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Plane Mirrors: A lighted candle is placed a short distance from a plane mirror, as shown in the figure. At which location will the image of the flame appear to be located?
A. at A B. at B C. at C D. at M (at the mirror)
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The two Voyager spacecraft carry a message from Earth, just in case an alien civilization ever runs across them
Indicate whether the statement is true or false
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When water boils, its temperature increases
a. True b. False Indicate whether the statement is true or false
Physics & Space Science