Which of these is a transverse wave?
A) a Slinky shaken to and fro.
B) a radio wave
C) a sound wave
D) all of the above
E) none of the above
Answer: B
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A. 2 B. 4 C. 8 D. 16 E. 32
How do Tadpole galaxies get their shapes?
A: They form in a region of chaotic spacetime expansion. B: They're spreading out on their own due to internal pressures. C: They are the results of ellipticals with powerful x-ray jets coming from their cores. D: They were fully-formed spiral galaxies before, and lost some arms to black holes. E: They respresent merging galaxies.
Angular momentum is calculated as the
A. product of mass times velocity B. product of mass times angular velocity C. product of moment of inertia times D. product of moment of velocity inertia times velocity angular
A superconducting wire carries a current of 1.0 × 104 A. Find the magnetic field at a distance of 1.0 m from the wire.
What will be an ideal response?