1 Step Procedure Result Mix sodium borate with water. Sodlum borate dissolves. Mix water and white liquld glue. Mixture is runny Add red food coloring to the glue mixture in Step 2. Mixture turns red. Stir together the sodium borate mixture and the glue mixture. Ball of slime forms. 2 3 4 Have the students made a new substance?
Choose "Yes" or "No."
Which result supports your answer?
A. The sodium borate dissolves in water,
B. Adding water makes the liquid glue runny.
C. Adding food coloring causes the glue to turn red.
D. Mixing the sodium borate mixture and the glue mixture forms a ball of slime.

If a sphere and a cure have the same mass and are propelled up a ramp with the same force, which would travel father up the ramp? explain.

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.

Which symbol in the first law of thermodynamics represents the sum of the chemical and thermal energy stored in atoms and molecules? a. q b.w c.v d.u