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The time taken for an object to fall from a height of h m from the earth'fs surface is t s.
If the gravitational acceleration on the Moon is 1.6 m s.2, compare the time taken of the
object to fall from the same height on the Moon.
Suatu objek mengambil masa ts untuk jatuh setinggi h m dari permukaan bumi.
Jika pecutan graviti di Bulan adalah 1.6 m s.2, bandingkan masa untuk objek itu jatuh dari
ketinggian yang sama di Bulan.
A Same as ts
Sama dengan ts
B Less thants
Kurang daripada ts
C Longer than ts
Lebih lama daripada ts

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.

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

The speed of light can be used to measure the