AM radio stations have greater range than FM stations because they have more powerful transmitters
Indicate whether the statement is true or false
F
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Photocopiers make use of the photoelectric effect
Indicate whether the statement is true or false
Coulomb's Law: The zirconium nucleus contains 40 protons, and an electron is 1.0 nm from the nucleus. What is the electric force on the electron due to the nucleus? ( e = 1.60 × 10-19 C, k = 1/4??0 = 9.0 × 109 N ? m2/C2)
A. 2.9 nN B. 1000 C C. 3.7 nN D. 6.8 nN E. 9.2 nN
If you push a 4-kg mass with the same force that you push a 10-kg mass from rest, then
A) both masses accelerate at the same rate. B) the 10-kg mass accelerates 2.5 times faster than the 4-kg mass. C) the 4-kg mass accelerates 2.5 times faster than the 10-kg mass. D) the 10-kg mass accelerates 4 times faster than the 4-kg mass. E) the 4-kg mass accelerates 4 times faster than the 10-kg mass.
A ray of light enters an equilateral prism made of material with n = 1.45. What angle of incidence,
will cause the internally refracted ray to be parallel to the base of the prism?
A. 46.5 
B. 30.0
C. 20.2
D. 5.70
E. this cannot happen