Physics, 11.11.2020 22:10 punkieladie
¿QUÉ TIPO DE MOVIMIENTO ES EL QUE REALIZA UN TREN QUE AVANZA A 100 km/h POR UN TRAMO RECTO?
1. MOVIMIENTO RECTILINEO UNIFORME
2. MOVIMIENTO RECTILÍNEO UNIFORMEMENTE ACELERADO
3. MOVIMIENTO CIRCULAR UNIFORME
4. TODAS SON CORRECTAS
Answers: 3
Physics, 21.06.2019 19:30
Aparticle travels in a circular orbit of radius 21 m. its speed is changing at a rate of 23.1 m/s2 at an instant when its speed is 37.2 m/s. what is the magnitude of the acceleration (in m/s? ) of the particle?
Answers: 1
Physics, 21.06.2019 22:30
Abug is 12 cm from the center of a turntable that is rotating with a frequency of 45 rev/min . what minimum coefficient friction is required so that the bug stays on the turntable?
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 07:50
Imagine you are standing in the antarctic during the southern hemisphere summer. the sky is clear and blue. there are no clouds in the sky. your shadow is cast on the icy ground. what is the color of the shadow?
Answers: 1
¿QUÉ TIPO DE MOVIMIENTO ES EL QUE REALIZA UN TREN QUE AVANZA A 100 km/h POR UN TRAMO RECTO?
1. MOVI...
Mathematics, 03.11.2020 07:30
Physics, 03.11.2020 07:30
Mathematics, 03.11.2020 07:30
Biology, 03.11.2020 07:30
Mathematics, 03.11.2020 07:30
Health, 03.11.2020 07:30
History, 03.11.2020 07:40
Chemistry, 03.11.2020 07:40
Mathematics, 03.11.2020 07:40
Chemistry, 03.11.2020 07:40
English, 03.11.2020 07:40
Physics, 03.11.2020 07:40
Mathematics, 03.11.2020 07:40
Mathematics, 03.11.2020 07:40