Parallel-Plate Capacitor: Two parallel square metal plates that are 1.5 cm apart and 22 cm on each side carry equal but opposite charges uniformly spread out over their facing surfaces. How many excess electrons are on the negative surface if the electric field between the plates has a magnitude of 18,000 N/C? (k = 1/4??0 = 9.0 × 109 N ? m2/C2, e = 1.6 × 10-19 C)
What will be an ideal response?
4.8 × 10-19 electrons
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Our solar system contains more than 100 Kuiper Belt objects larger than 300 km in diameter
Indicate whether the statement is true or false
The spectra of interstellar gas clouds show that they have the same basic composition as
A) Earth's atmosphere. B) stars. C) asteroids. D) interstellar dust. E) the Martian polar caps.
The neutron is radioactive and can beta decay to form a proton. This can occur primarily because
a. the proton has less mass than a neutron. b. there are several hydrogen isotopes. c. of the binding energy of hydrogen. d. the neutron is neutral.