Assignment: Ch. 2 L. 3 Review Question 6 of 10
Nikhil bought a large plant in a planter for his mother. He took it home and pushed it around his
living room until he found a good location for it near the window. After he watered the plant, he
was very surprised how difficult it was to push the planter. Based on Newton's second law, the
planter is more difficult to move. Using Newton's 2nd Law of Motion, choose the one statement
that does NOT apply.
(1 point)
A. With the water, the planter had more mass and more inertia.
B. Nikhil had to apply more force to produce the same acceleration.
C. Increased inertia mea that less force is needed to move the planter.
D. If Nikhil used the same amount of force, the acceleration of the moving planter would be less after adding the water.

How are calculation for velocity and speed different

Aforklift raises a 1,020 n crate 3.50 m up to a shelf. how much work is done by the forklift on the crate? the forklift does j of work on the crate.

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.