A quantum number for a quark is
a. strangeness
b. beauty
c. charm
d. truth
e. all of the above
E
You might also like to view...
Momentum: A 0.330-kg volleyball is thrown vertically downward with a speed of 0.150 m/s in a place where g = 9.81 m/s2. It takes it 0.0655 s to reach the ground. What is the magnitude of its momentum just before it hits the ground?
A. 0.212 kg ? m/s B. 0.262 kg ? m/s C. 0.163 kg ? m/s D. 0.0216 kg ? m/s E. 0.0418 kg ? m/s
The distributed loading on beam ABCD is to be replaced by a statically equivalent set of forces. The mag- nitude and location of the statically equivalent force on beam segment AB are:
(A) 575 lb, 4.1 ft
(B) 638 lb, 4.2 ft
(C) 740 lb, 3.9 ft
(D) 428 lb, 4.4 ft
This diagram shows how light from a binary star system would travel to Earth if the speed of light were not constant. What is its observational significance?
A) It tells us that if the speed of light were not the same for everyone, then we would not necessarily see binary stars as distinct objects. B) It shows that time runs slower for fast-moving objects. C) It shows that motion is relative. D) It shows that observers in different reference frames will not necessarily agree when two events are simultaneous.
The magnetic pole of the Earth nearest the geographic South Pole corresponds to which of the following?
a. a magnetic south pole c. a magnetic north pole b. a magnetic Antarctic pole d. a magnetic arctic pole