Physics, 04.04.2020 19:51, toritori4015
It is well known that lightning is seen before the thunder is heard. Wavelengths of electromagnetic and sound waves can be the same. Imagine that the wavelengths from the lightning and thunder are the same, what can be said about their frequencies?
Answers: 1
Physics, 22.06.2019 04:10, brianamelara
Atotal charge of โ6.50 ยตc is uniformly distributed within a sphere that has a radius of 0.150 m. what is the magnitude and direction of the electric field at 0.300 m from the surface of the sphere? a) 2.89 ร 105 n/c, radially inward b) 6.49 ร 105 n/c, radially outward c) 4.69 ร 105 n/c, radially inward d) 9.38 ร 105 n/c, radially outward e) 1.30 ร 106 n/c, radially inward
Answers: 3
Physics, 22.06.2019 10:00, lorelei7668
(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present
Answers: 3
Physics, 23.06.2019 02:00, lyly214
Dc versus ac problem. suppose your dc power supply is set to 15 v and the vertical setting on the oscilloscope is at 5 v/div. how many divisions will the trace deflect if you connect the output of the power supply to the scope with the a input switch set on dc? how many divisions if the switch is on ac?
Answers: 3
Physics, 23.06.2019 02:30, brodycruce
Afaulty model rocket moves in the xy-plane (the positive y direction is vertically upward). the rocket's acceleration has components ax(t) = ? t2 and ay(t) = ? ? ? t, where ? = 2.50 m/s4 , ? = 9.00 m/s2 , and ? = 1.40 m/s3 . at t = 0 the rocket is at the origin and has velocity ~v0 = v0x ? i + v0y ? j with v0x = 1.00 m/s and v0y = 7.00 m/s. (a) calculate the velocity and position vectors as functions of time. (b) what is the maximum height reached by the rocket? (c) sketch the path of the rocket. (d) what is the horizontal displacement of the rocket when it returns to y = 0?
Answers: 1
It is well known that lightning is seen before the thunder is heard. Wavelengths of electromagnetic...
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