Physics, 15.04.2020 21:16 raincalderxn
What is the internal heat gain, in kW, from a factory with 20 kW of lighting (surface-mounted), 10 kW of running motors, and 10 people doing light benchwork?
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Physics, 22.06.2019 08:00
What is a carrier wave and how does it affect what you hear on the radio
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Physics, 22.06.2019 22:50
Cyclotrons are widely used in nuclear medicine for producing short-lived radioactive isotopes. these cyclotrons typically accelerate h- (the hydride ion, which has one proton and two electrons) to an energy of 5 mev to 20 mev. this ion has a mass very close to that of a proton because the electron mass is negligible—about 1 2000 of the proton’s mass. a typical magnetic field in such cyclotrons is 1.9 t. (a) what is the speed of a 5.0-mev h-? (b) if the h- has energy 5.0 mev and b = 1.9 t, what is the radius of this ion’s circular orbit?
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Physics, 23.06.2019 00:30
If you let go of the notebook after lifting it, will it move? how?
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What is the internal heat gain, in kW, from a factory with 20 kW of lighting (surface-mounted), 10 k...
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