"Catastrophes" are NOT needed to explain:
A) the exceptionally large nickel-iron core of Mercury.
B) the asteroid belt.
C) our Moon.
D) the tilt of Uranus.
E) the appearance of Miranda's surface.
B
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Which of the following is an exemple of chronic ilness
A. Strep throat B. Chickenpox C. Arthritis D. Poison ivy
The orbits of halo stars are typically circular and have a low inclination with respect to the disk
a. True b. False Indicate whether the statement is true or false
A wheel is spinning about a fixed axis in a clockwise direction at 20.0 revolutions per minute. There is a spot of paint on the wheel located 20.0 cm from the axis of rotation
Disregarding the phase of the motion and with the origin located at the center of the wheel, which of the following is a description of the motion of the paint spot projected onto a given direction in the plane of motion? A) x(t) = (20.0 cm)cos[(2.09 s-1)t] B) x(t) = (40.0 cm)cos[(0.333 s-1)t] C) x(t) = (20.0 cm)cos[(0.333 s-1)t] D) x(t) = (20.0 cm)cos[(20.0 s-1)t] E) x(t) = (40.0 cm)cos[(126 s-1)t]
N rays do not exist
Indicate whether the statement is true or false