What is the CNO cycle?
A) a set of steps by which four hydrogen nuclei fuse into one helium nucleus
B) the process by which helium is fused into carbon, nitrogen, and oxygen
C) the process by which carbon is fused into nitrogen and oxygen
D) the set of fusion reactions that have produced all the carbon, nitrogen, and oxygen in the universe
A) a set of steps by which four hydrogen nuclei fuse into one helium nucleus
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A space station of diameter 40. meters is turning about its axis at a constant rate. What is the period of revolution of the space station if the outer rim experiences an acceleration of 2.5 m/s2?
A) 10. s B) 14. s C) 11. s D) 13. s E) 18. s
Sonic Booms: The half-angle of the conical shock wave produced by a supersonic aircraft is 60°. What is the ratio of the speed of the aircraft to the speed of sound?
A. 0.87 B. 1.2 C. 1.7 D. 2.0
A lunar eclipse can only occur when the Moon is ____
a. full b. new c. waxing d. waning e. rising
A uniform linear charge of 2.0 nC/m is distributed along the x axis from x = 0 to x = 3 m. What is the x component of the electric field at y = 2 m on the y axis?
a. ?5.0 N/C b. ?4.0 N/C c. ?5.7 N/C d. ?6.2 N/C e. ?9.0 N/C