Uranus and ________ are very similar in size, mass, and color
Fill in the blank(s) with correct word
Neptune
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__________is that component of an object's velocity that is directed away from or toward an observer
A) Parallel velocity B) Radial velocity C) Tangential velocity D) Identical velocity
The mass of a single galaxy might be found by
a. the double galaxy method. b. the rotation curve method. c. the cluster method. d. any of these methods. e. none of these methods.
Pianos are usually strung with multiple identical wires sounding each note. If two wires that each are meant to have a fundamental frequency of 283.5 Hz are played, and a beat frequency of 1.5 Hz is heard, by what fraction must the string which is lower in frequency than the other have its tension adjusted?
A. 0.27% B. 0.53% C. Impossible to determine D. 1.1%
A 30.0-kg child sits on one end of a long uniform beam having a mass of 20.0 kg, and a 40.0-kg child sits on the other end
The beam balances when a fulcrum is placed below the beam a distance 1.10 m from the 30.0-kg child. How long is the beam? A) 2.12 m B) 1.98 m C) 1.93 m D) 2.07 m E) 2.20 m