What are these things called
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Physics, 22.06.2019 14:30
Exercise 2. find the wavelength of a photon emitted when an electron jumps from the n = 3 energy level down to the n = 2 energy level. where is this photon in the electromagnetic spectrum?
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Physics, 22.06.2019 20:00
Aturntable that spins at a constant 74.0 rpm takes 3.10 s to reach this angular speed after it is turned on. find its angular acceleration (in rad/s2), assuming it to be constant, and the number of degrees it turns through while speeding up.
Answers: 2
Physics, 22.06.2019 20:10
Two cannon balls weighing 18 kg and 24 kg are chained together and fired horizontally with a velocity of 165 m/s from the top of a 21-m wall. the chain breaks during the flight of the cannonballs and the 18-kg cannonball strikes the ground at t = 1.5 s, at a distance of 240 m from the foot of the wall, and 7 m to the right of the line of fire. determine the position of the other cannonball at that instant. neglect the resistance of the air.
Answers: 1
Mathematics, 11.05.2020 17:57
Mathematics, 11.05.2020 17:57
Mathematics, 11.05.2020 17:57
Mathematics, 11.05.2020 17:57
Mathematics, 11.05.2020 17:57
English, 11.05.2020 17:57
Mathematics, 11.05.2020 17:57
Mathematics, 11.05.2020 18:57
Mathematics, 11.05.2020 18:57
Biology, 11.05.2020 18:57