Based on current understanding, the minimum mass of a black hole that forms during a massive star supernova is roughly
A) 0.5 solar masses.
B) 1.4 solar masses.
C) 3 solar masses.
D) 10 solar masses.
C
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The Last Quarter phase of the Moon
A) rises at sunrise. B) sets at sunrise. C) crosses the meridian at sunrise. D) rises at sunset. E) sets at sunset.
A 30.00 kg mass falls from a height of 4.000 m. The momentum of the mass just before it hits the ground is
A. 144.2 kg m/s. B. 187.8 kg m/s. C. 320.0 kg m/s. D. 442.4 kg m/s. E. 502.1 kg m/s.
Which is larger, a calorie or a joule?
a. calorie b. joule c. Neither—they are the same. d. They cannot be compared since they measure different physical quantities.
A coffee maker, which draws 13.5 A of current, has been left on for 10.0 min. What is the net number of electrons that have passed through the coffee maker?
What will be an ideal response?