Which of the following may be determined using Ampere's law?
a) electric fields due to current carrying wires
b) magnetic forces between two current carrying wires
c) magnetic fields due to current carrying wires
d) magnetic forces acting on charged particles
e) magnetic fields due to permanent magnets
Ans: c) magnetic fields due to current carrying wires
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The Big Bang is a theory describing the ____
a. birth of our Solar System b. start of civilization on Earth c. beginning of planet formation d. beginning of the Universe e. massive extinction of dinosaurs
A 24.0 N picture hangs from a nail in the wall. The diameter of the nail is 2.00 mm. The shear stress on the nail is
a. 
b. 
c. 
d. 
e. 
High mass stars evolve more slowly to the main sequence than lower mass stars
Indicate whether the statement is true or false
A star with planets orbiting in a plane that is not face-on to our line-of-sight exhibit a Doppler effect due to ________
A) the light emitted by the moving planets B) the light reflecting from the moving planets C) the planet gravitationally tugging the star D) the planet's mass shifting the path of light from the star