The triple-alpha process involves the fusion of
a. three alpha particles. b. three neutral helium atoms.
c. three alpha particles or three neutral helium atoms. d. None of the other choices are correct.
c
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How many significant figures are in 120.07?
A) 6 B) 5 C) 4 D) 3 E) 2
The quasar epoch ended when the galactic merger rate ________
Fill in the blank(s) with correct word
A particle (mass = 4.0 g, charge = 80 mC) moves in a region of space where the electric field is uniform and is given by Ex = ?2.5 N/C, Ey = Ez = 0 . If the velocity of the particle at t = 0 is given by vx = 80 m/s, vy = vz = 0, what is the speed of the particle at t = 2.0 s?
a. 40 m/s b. 20 m/s c. 60 m/s d. 80 m/s e. 180 m/s
During an isothermal process, 5.0 J of heat is removed from an ideal gas. What is the change in internal (thermal) energy of the gas?
A) 2.5 J B) 5.0 J C) 7.5 J D) 10 J E) 0.00 J