When helium fusion begins in a one solar mass main star, it begins gradually, with this rate slowly increasing over time
Indicate whether the statement is true or false
FALSE
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Double-Slit Interference: In a two-slit experiment, monochromatic coherent light of wavelength 600 nm passes through a pair of slits separated by 2.20 × 10-5 m. At what angle away from the centerline does the second dark fringe occur?
A. 4.70° B. 3.51° C. 3.94° D. 1.17° E. 2.34°
Instructions: On occasion, the notation 
will be a shorthand notation for 
.
The displacement of the tip of the 10 cm long minute hand of a clock between 12:15 A.M. and 12:45 P.M. is:
A. 10 cm, 90° B. 10 cm, 180° C. 10 cm, 4 500° D. 20 cm, 180° E. 20 cm, 540°
Collisions in which kinetic energy is conserved are said to be inelastic collisions
Indicate whether the statement is true or false
A boulder rolls off of a very high cliff. If you disregard air, while it is falling, its trajectory is never truly vertical
A) True B) False