Physics, 30.08.2019 21:20 dcarranza626
In a photoelectric experiment, you shine light onto an electrode and record a current of 25 μa. when you apply +500 mv to the electrode, the current drops to 19 μa. what is the stopping potential magnitude in v?
Answers: 2
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Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s
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In a photoelectric experiment, you shine light onto an electrode and record a current of 25 μa. when...
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