The number of quarks in a deuteron (2H) is
A)
1.
B)
2.
C)
3.
D)
4.
E)
6.
E
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In the context of the double-slit experiment, quantum nonlocality refers to
A) the fact that the entire matter field or EM field instantaneously collapses to the single interaction point when the field interacts with the screen. B) our inability to precisely predict the point at which a spread-out matter field or EM field will interact with the screen. C) the fact that each interaction with the screen occurs over a broad area of the screen. D) the fact that the electron beam or light beam goes through both slits rather than only one. E) the fact that the particles of matter or radiation are instantaneously replaced by a spread-out matter field or EM field when the particles impact the screen.
A liquid has a specific gravity of 0.68. What is its density?
A) 680 kg/m3 B) 1360 kg/m3 C) 1000 kg/m3 D) 6800 kg/m3
The flow rate of blood through the average human aorta, of radius 0.95 cm, is about 90 cm3/s. What is the speed of the blood flow through the aorta?
a. 14 cm/s b. 32 cm/s c. 37 cm/s d. 32 cm/s
A segment of wire carries a current of 25 A along the x axis from x = ?2.0 m to x = 0 and then along the z axis from z = 0 to z = 3.0m. In this region of space, the magnetic field is equal to 40 mT in the positive z direction. What is the magnitude of the force on this segment of wire?
a. 1.0 N b. 5.0 N c. 2.0 N d. 3.6 N e. 3.0 N