The graphs display velocity data. Velocity is on the y-axis (m/s), while time is on the x-axis (s). Based on the graphs, which data set represents constant acceleration? Untitled and unlabeled graph with x axis numbered 0 to 4 and the y axis numbered from 0 to 5. There is a line connecting square points of (0, 0), (1, 1), (2, 2), (3, 3) and (4, 4). Untitled and unlabeled graph with x axis numbered 0 to 4 and the y axis numbered from 0 to 12. There is a line connecting square points of (0,0), (1,.5), (2,2.5), (3,6) and (4,10). Untitled and unlabeled graph with x axis numbered 0 to 4 and the y axis numbered from 0 to 6. There is a line connecting square points of (0, 5), (1, 5), (2, 5), (3, 5) and (4, 5).

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.

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

A40.0 l tank of ammonia has a pressure of 12.7 kpa. calculate the. volume of the ammonia if it’s pressure is changed to 8.4 kpa while its temperature remains constant.