The light radiated from the Sun's surface reaches Earth in about 8 minutes, but the energy of that light was released by fusion in the solar core about ________
A) a few hundred thousand years ago B) one hundred years ago
C) three days ago D) one thousand years ago
A
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A coil of 160 turns and area 0.20 m2 is placed with its axis parallel to a magnetic field of initial magnitude 0.40 T
The magnetic field changes uniformly from 0.40 T in the +x direction to 0.40 T in the -x direction in 2.0 s. If the resistance of the coil is 16 ?, at what rate is power generated in the coil? A) 5.0 W B) 10 W C) 15 W D) 20 W E) 25 W
The San Andreas Fault is a transform fault separating the
A) westward moving North American Plate from the eastward moving Pacific ridge. B) westward moving North American Plate from the southwest moving Pacific Plate. C) Farallon Plate from the North American Plate. D) eastern part of California from the Gulf of California.
Which of the following is typical of a Jovian planet?
A. an orbit inside the asteroid belt B. a hydrogen-poor composition C. the presence of many moons D. an average density about that of rock E. evidence for volcanic activity
How will the wavelength of electromagnetic radiation change during the Doppler shift?
What will be an ideal response?