Physics, 24.03.2020 17:02 Aldcperformer
In an X-ray tube, a uniform electric field E extends over a distance of 12 cm from an electron source to a target; the field points from the target to the source. If the potential difference between the source and target is 40 kV then what is the magnitude of the electric field? What is the energy gained by an electron as it accelerates from source to target? Express the energy both in electronvolts and joules. (16 pts)
Answers: 2
Physics, 21.06.2019 14:40
A50.0-n box is sliding on a rough horizontal floor, and the only horizontal force acting on it is friction. you observe that at one instant the box is sliding to the right at and that it stops in 2.25 s with uniform acceleration. what magnitude force does friction exert on this box
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Physics, 21.06.2019 20:50
Aball is thrown upward in the air, and its height above the ground after t seconds is h ( t ) = 57 t − 16 t 2 feet. find the time t when the ball will be traveling upward at 14.25 feet per second.
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The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. this process was repeated by 3 observers. the pooled standard deviations of these 3 data sets was 1.21. determine the true mean force using all pooled data (with a 95% probability). the result should look like this: true mean = mean +/- margin of error
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Physics, 22.06.2019 13:30
Select the three ways that the parallel-plate capacitor differs from a car battery.
Answers: 1
In an X-ray tube, a uniform electric field E extends over a distance of 12 cm from an electron sourc...
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