Process of Science: A scientific theory must produce testable hypotheses that are then evaluated when data are available
What testable hypotheses does nebular theory predict? Describe two hypotheses about solar systems that come from nebular theory that we can test when more data on other solar systems become available.
1. Larger planets should be in the outer solar system.
2. Planets should orbit in the same direction.
3. Planets should lie in approximately the same plane.
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It's cold! You are sitting on what appears to be an ice-covered world (water ice). The Sun is low on the horizon and circles the horizon about once every 24 hours
Despite the low Sun, you can almost "feel" the skin cancers appearing on your exposed face (because there is little ozone to protect you). Despite these discomforts, you are pleased to find that the air is quite satisfactory; oxygen seems plentiful, and you are able to breathe even without the life-support belt.
Consider a brick that is totally immersed in water. The long edge of the brick is vertical. The pressure on the brick is
A) the same on all surfaces of the brick. B) greatest on the face with largest area. C) greatest on the top of the brick. D) greatest on the sides of the brick. E) greatest on the bottom of the brick.
A charge of 2.00 ?C flows onto the plates of a capacitor when it is connected to a 12.0-V potential source. What is the minimum amount of work that must be done in charging this capacitor?
A) 6.00 µJ B) 24.0 µJ C) 12.0 µJ D) 144 µJ E) 576 µJ
The sum of the kinetic and potential energies of an object is conserved only when the object is under the influence of conservative forces
Indicate whether the statement is true or false