Physics, 02.04.2021 01:00 kkingstone453
What is the strength of the electric field at a point charge of magnitude +6.4×10^-19th C at a distance of 4.0×10^- 3M?
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What is the energy of a photon of ultraviolet radiation with a frequency of 4.4 × 1015 hz? planck’s constant is 6.63 × 10–34
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Road users moving into your lane, brake lights, and abrupt changes in road surface are a. rare at night b. indicators of potential hazards c. not worth worrying about before you reach them d. no problem for experienced drivers
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Physics, 22.06.2019 08:40
Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?
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What is the strength of the electric field at a point charge of magnitude +6.4×10^-19th C at a dista...
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