Energy Conservation With Conservative Forces: When you throw a pebble straight up with initial speed V, it reaches a maximum height H with no air resistance. At what speed should you throw it up vertically so it will go twice as high?
A. 16V
B. 8V
C. 4V
D. 2V
E. 
V
Answer: E
Physics & Space Science
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If the diameter of a wire increases, its resistance decreases
Indicate whether the statement is true or false
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