Water comes down the spillway of a dam from an initial vertical height of 100 m. What is the highest possible speed of the water at the end of the spillway?
a. 15 m/s
c. 58 m/s
b. 44 m/s
d. 1370 m/s
B
Physics & Space Science
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Ross 128 is 1.1 times further than Ross 154 . As such, the parallax angle of Ross 128 is 0.9 times larger than Ross 154
a. True b. False Indicate whether the statement is true or false
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Voltage can also be called
a. potential. b. pressure. c. work. d. energy. e. none of the above.
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A copper cable needs to carry a current of 160 A with a power loss of only 2.0 W/m. What is the required radius of the copper cable? (The resistivity of copper is 1.7 × 10^?8 ??m)
a. 0.43 cm b. 0.83 cm c. 1.7 cm d. 2.6 cm e. 0.33 cm
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A typical SUV uses more gas in a year than a typical family sedan
What will be an ideal response?
Physics & Space Science