Suppose that the speed of an electron traveling 1.0 km/s is known to an accuracy of 1 part in 105 (i.e., within 0.01%). What is the greatest possible accuracy within which we can determine the position of this electron?
What will be an ideal response?
12. mm
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A simple pendulum is suspended from the ceiling of a stationary elevator, and the period is measured. If the elevator accelerates upward, the period
1.increases. 2.decreases. 3.remains the same.
Relativistic time-dilation means that astronauts aboard a spaceship traveling close to the speed of light will actually age less than their families left behind on the Earth
Indicate whether the statement is true or false
Consider a situation where a skater pulls her arms inward, causing her rotation rate to speed up.Kinetic energy __________ conserved
Fill in the blank(s) with correct word
Warm air rises because faster moving molecules tend to move to regions of less
A) density. B) pressure. C) both of these D) none of the above