A heavily loaded boat is floating in a pond. The boat sinks because of a leak. What happens to the surface level of the pond?
a. It stays the same.
b. It goes up.
c. It goes down.
d. More information is needed to reach a conclusion.
c
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A radioactive isotope with an atomic number of 37 undergoes electron capture. What is the atomic number of the daughter nucleus?
A) 35 B) 34 C) 38 D) 36
A person in a boat sees a fish in the water (n = 1.33), the light rays making an angle of 40° relative to the water's surface. What is the true angle (in degrees) relative to the water's surface of the same rays when beneath the surface?
A. 40 B. 35 C. 50 D. 55 E. 61
Diagram 6-2 illustrates a light source, a gas cloud, and three different lines of sight. Along which line of sight would an observer see an emission spectrum?
a.
1
b.
2
c.
3
d.
2 and 3
e.
none of them
A vertical cylinder with a movable cap is cooled. The process corresponding to this is: