Physics, 21.04.2020 18:07 parisowl7900
A light beam is directed parallel to the axis of a hollow cylindrical tube. When the tube contains only air, the light takes 8.72 ns to travel the length of the tube, but when the tube is filled with a transparent jelly, the light takes 1.82 ns longer to travel its length. What is the refractive index of this jelly?
Answers: 2
Physics, 21.06.2019 17:00
Which of the following is considered to be a vector? a. temperature b. velocity c. time d. mass
Answers: 1
Physics, 21.06.2019 22:30
A-4.60 ฮผc charge is moving at a constant speed of 6.80ร105 m/s in the +xโdirection relative to a reference frame. at the instant when the point charge is at the origin, what is the magnetic-field vector it produces at the following points.
Answers: 3
Physics, 22.06.2019 13:10
The atoms in a nickel crystal vibrate as harmonic oscillators with an angular frequency of 2.3 ร 1013 rad/s. the mass of a nickel atom is 9.75 ร 10-26 kg. what is the difference in energy between adjacent vibrational energy levels of nickel? (h = 6.626 ร 10-34 j โข s, , 1 ev = 1.60 ร 10-19 j)
Answers: 2
Physics, 23.06.2019 00:20
When can a theory be modified if a new type of technology allows for new observations that raise new questions? a-immediately, while the questions about the theory are being asked b-after new hypotheses related to the theory are tested in experiments c-only after the new observations disprove all parts of the theory d-while scientists begin to think about how the theory could improve
Answers: 1
A light beam is directed parallel to the axis of a hollow cylindrical tube. When the tube contains o...
Computers and Technology, 12.03.2021 15:20