Physics, 15.01.2020 03:31 zhellyyyyy
Ahockey puck, mass of 0.115 kg, moving at 35 m/s strikes a ray thrown on the ice by a fan. the ray has a mass of 0.265 kg. the puck and the ray slide off together.
find their velocity.
Answers: 1
Physics, 22.06.2019 07:30
Some material consisting of a collection of microscopic objects is kept at a high temperature. a photon detector capable of detecting photon energies from infrared through ultraviolet observes photons emitted with energies of 0.3 ev, 0.5 ev, 0.8 ev, 2.0ev, 2.5ev, and 2.8ev. these are the only photon energies observed. (a) draw and label a possible energy-level diagram for one of the microscopic objects, which has four bound states. on the diagram, indicate the transitions corresponding to the emitted photons. explain briefly. (b) would a spring–mass model be a good model for these microscopic objects? why or why not? (c) the material is now cooled down to a very low temperature, and the photon detector stops detecting photon emissions. next, a beam of light with a continuous range of energies from infrared through ultraviolet shines on the material, and the photon detector observes the beam of light after it passes through the material. what photon energies in this beam of light are observed to be significantly reduced in intensity (“dark absorption lines”)? explain briefly.
Answers: 3
Physics, 22.06.2019 17:20
The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b.b. at twice the distance, the magnitude of the field is 2b.c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.
Answers: 3
Physics, 22.06.2019 17:30
Which planet do you think would be easiest for humans to colonize some day?
Answers: 1
Physics, 22.06.2019 18:30
Energy can be transformed from one form to another. the diagram shows one such process. which energy transformation is represented in the diagram? nuclear to thermal and radiant nuclear to electrical and chemical chemical to nuclear and radiant chemical to electrical and nuclear
Answers: 1
Ahockey puck, mass of 0.115 kg, moving at 35 m/s strikes a ray thrown on the ice by a fan. the ray h...
English, 14.07.2020 02:01
Mathematics, 14.07.2020 02:01
Mathematics, 14.07.2020 02:01
Mathematics, 14.07.2020 02:01
Mathematics, 14.07.2020 02:01
English, 14.07.2020 02:01
Mathematics, 14.07.2020 02:01
Mathematics, 14.07.2020 02:01
Mathematics, 14.07.2020 02:01
English, 14.07.2020 02:01
Mathematics, 14.07.2020 02:01
English, 14.07.2020 02:01
Mathematics, 14.07.2020 02:01
Mathematics, 14.07.2020 02:01