You have two samples of water. Sample 1 contains little green stoneflies, armored mayflies, green caddisflies larva, pitot tube caddisflies and diving beetles. Sample 2 contains diving beetles, skinners, pitot tube caddisflies, and one northern case maker caddisflies. What can you say about these samples based on this information?
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Physics, 21.06.2019 19:00
Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied.
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Physics, 21.06.2019 22:30
A-4.60 Îźc charge is moving at a constant speed of 6.80Ă105 m/s in the +xâdirection 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.
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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 springâmass 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 (âdark absorption linesâ)? explain briefly.
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Physics, 22.06.2019 12:00
Suppose a comet has an orbital period of 309.1 years around the sun. what is itâs average distance from the sun?
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You have two samples of water. Sample 1 contains little green stoneflies, armored mayflies, green ca...
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