Physics, 21.03.2020 10:30 electrofy456
Tape recorders contain strips of thin plastic tape, which are covered in a layer of very fine iron dust. The iron dust reacts to a changing magnetic field and slightly rearranges itself on the tape, thereby recording the pattern generated by the changing magnetic field.
Answers: 1
Physics, 21.06.2019 19:30, queenpaige2015
Ben(55 kg) is standing on very slippery ice when junior(25kg) bumps into him. junior was moving at a speed of 8m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision .
Answers: 2
Physics, 22.06.2019 04:00, zoepatterson1p0lij1
When an object is heated it contracts. a. true b. false
Answers: 2
Physics, 22.06.2019 18:00, abigail018
Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.
Answers: 1
Physics, 22.06.2019 20:30, cnicole71
Ascientist notices that an oil slick floating on water when viewed from above has many different colors reflecting off the surface, making it look rainbow-like (an effect known as iridescence). she aims a spectrometer at a particular spot and measures the wavelength to be 750 nm (in air). the index of refraction of water is 1.3
Answers: 1
Tape recorders contain strips of thin plastic tape, which are covered in a layer of very fine iron d...
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