A summary of the nuclear reactions that power our sun is 4p ? 4He + 2e-, with masses of 938.272 MeV/c2 for a proton, 3727.38 MeV/c2 for the helium nucleus, and 0.511 MeV/c2 for each electron
How much energy is released by each of these reactions? A) 24.69 MeV
B) 28.3 MeV
C) 2790.13 MeV
D) 279.01 MeV
A
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Which of the following processes would be the most likely process for making continuous-fiber composite material for a Formula 1 race car chassis?
(a) Resin transfer molding (b) Vacuum bagging (c) Pultrusion (d) Filament winding
Intensity: The intensity of the waves from a point source at a distance d from the source is I. What is the intensity at a distance 2d from the source?
A. 4I
B. 2I
C. I/2
D. I/4
E. I/
How big are nebulae in size?
A.) 10^5 m. B.) 10^10 m. C.) 10^25 m. D.) 10^17 m. E.) 10^50 m.
When an ideal gas undergoes a slow isothermal expansion:
A. the work done by the gas is the same as the energy absorbed as heat B. the work done by the environment is the same as the energy absorbed as heat C. the increase in internal energy is the same as the energy absorbed as heat D. the increase in internal energy is the same as the work done by the gas E. the increase in internal energy is the same as the work done by the environment