These photos show two different astronomical objects. Which object is bigger, and by about how much?
A) Object 2 is more than a trillion times as large as Object 1.
B) Object 2 is approximately 1,000 times as large as Object 1.
C) Object 2 is about 10 times as large as Object 1.
D) Object 1 is about 10 times as large as Object 2.
E) Both objects are about the same size.
A) Object 2 is more than a trillion times as large as Object 1.
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Which of the following is true about the seasons on Uranus?
A) The seasons on Uranus are not unlike those on Earth or Mars. B) The Uranian rotation axis produces some extreme seasonal effects. C) Like Jupiter, Uranus has little tilt, with its equator always facing the Sun. D) From the Uranian equator, the Sun would remain stationary all the time. E) Uranus' weather will become less turbulent as equinox approaches in 2049.
An atom with fewer electrons than protons is a negative ion
a. True b. False Indicate whether the statement is true or false
A potter's wheel, with rotational inertia 46 kg • m2, is spinning freely at 40 rpm. The potter drops a lump of clay onto the wheel, where it sticks a distance 1.2 m from the rotational axis
If the subsequent angular speed of the wheel and clay is 32 rpm what is the mass of the clay? A) 8.0 kg B) 5.4 kg C) 7.0 kg D) 8.8 kg
Two +6.0-µC charges are placed at two of the vertices of an equilateral triangle having sides 2.0 m long. What is the electric potential at the third vertex, relative to infinity, due to these charges? (k = 1/4??0 = 9.0 × 109 N ? m2/C2 )
A) 108 V B) 54 kV C) 90 kV D) 0 V E) 27 kV