The presence of granulation is clear evidence that energy is flowing upward through the photosphere by a process known as__________
A) convection
B) ionization
C) blueshift
D) polarization
A
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Energy resulting from motion is called ______________
Fill in the blank(s) with correct word
Two-dimensional momentum conservation works
A. for a few special cases B. for all collisions C. If the momenta are perpendicular to each other D. if the angle between the original momenta is small
The length of your arm is closest to
A) 10 centimeters. B) one meter. C) one kilometer. D) 100 meters. E) two meters.
Solenoid: An ideal solenoid with 400 turns has a radius of 0.040 m and is 40 cm long. If this solenoid carries a current of 12 A, what is the magnitude of the magnetic field at the center of the solenoid? (?0 = 4? × 10-7 T ? m/A)
A. 16 mT B. 4.9 mT C. 15 mT D. 6.0 mT E. 9.0 mT