Contrast Saturn's moon Titan with Earth's Moon
What will be an ideal response?
Titan and Earth's Moon are similar size and have similar surface gravity. The Moon is denser. Titan is icy, colder, and has a thick atmosphere.
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A child is riding a merry-go-round that has an instantaneous angular speed of 1.25 rad/s and an angular acceleration of 0.745 rad/s2. The child is standing 4.65 m from the center of the merry-go-round
What is the magnitude of the linear acceleration of the child? A) 8.05 m/s2 B) 7.27 m/s2 C) 2.58 m/s2 D) 3.46 m/s2 E) 4.10 m/s2
What is the meaning of the term "critical mass"?
A) This refers to the mass of the "critical" elements in a reactor, i.e., the uranium or plutonium. B) This refers to the minimum amount of fissionable material required to sustain a chain reaction. C) This refers to the maximum amount of fissionable material required to sustain a chain reaction. D) This is the amount of mass needed to make a power reactor economically feasible. E) This is the material which is just on the verge of becoming radioactive.
If you wanted to know how much the temperature of a particular piece of material would rise when a known amount of heat was added to it, which of the following quantities would be most helpful to know?
A) initial temperature B) specific heat C) density D) coefficient of linear expansion E) thermal conductivity
Distinguish between pressure and density. How are they related to each other?
What will be an ideal response?