Is the formation of rust on an iron nail a chemical change or a physical change?

Which statement about the spectrum of light that emerges from a prism is true?

Which best describes the current atomic model?

A 12 oz can of soda was left in a car on a hot day. in the morning, the soda temperature was 60°f with a gauge pressure of 40 psi. what will the gauge pressure be when the soda reaches 90°f (or 305 kelvin) ?

Which of the following does NOT serve a way to neutralizer the charge in a body? A. adding more protons to a positively charged body until the numbers of protons matches the number of Electrons, B.

If a force of 22 N is applied to an object with a mass of 6 kg, the object will accelerate at

A rectangular coil with sides 0.10 m by 0.25 m has 500 turns of wire. It is rotated about its long axis in a magnetic field of 0.58 T directed perpendicular to the rotation axis.

Stars set about how many minutes earlier each day? A. 8 B. 6 C. 4 D. 2

Whose atomic theory explains how atoms emit and absorb light

Closed clusters are groups of closely grouped stars that are located along the spiral disk of a galaxy. a. True b. False

Five forces are exerted on a box as follows: 10 N south 20 N north 50 N east 35 N west 15 N west. What is the resultant force?