Suppose a 70-kg student were to be compressed to form a black hole. What would be the Schwarzschild radius of this black hole? (G = 6.67 × 10-11 N ? m2/kg2, c = 3.0 × 108 m/s)
What will be an ideal response?
1.0 × 10-25 m
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Dimensional Analysis: The speed v of an object falling with a constant acceleration g can be expressed in terms of g and the distance traveled from the point of release, h, as v = agbhc, where a, b, and c, are dimensionless constants. What must be the values of b and c?
Fill in the blank(s) with the appropriate word(s).
The visual appearance of Neptune is much bluer than Uranus
Indicate whether the statement is true or false
Two capacitors with CA greater than CB and are connected in series with a battery. Which of the following is true?
a. There is more charge stored on CA. b. There is more charge stored on CB. c. There is the same charge stored on each capacitor. d. There is the same potential difference across both capacitors.
An airplane flies in a horizontal circle of radius 500 m at a speed of 150 m/s. If the plane were to fly in the same 1000-m circle at a speed of 300 m/s, by what factor would its centripetal acceleration change?
a. 0.25 b. 0.50 c. 1.00 d. 2.00 e. 4.00