As a star evolves, heavier elements tend to form by various processes. Which of the following is NOT one of these processes?
A) proton capture and neutron capture
B) fusion of like nuclei
C) helium capture
D) the s process
E) neutronization
E
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Work Done by a Gas: While 3.0 moles of gas expand from an initial volume of 0.040 m3 to a final volume of 0.085 m3, the temperature of the gas is kept fixed at 300 K. How much work does the gas do during this expansion? (R = 8.31 J/mol ? K)
A. 5.6 kJ B. 6.6 kJ C. 7.6 kJ D. 8.6 kJ E. 14 kJ
What is the maximum efficiency of a heat engine operating between 293 Kelvins and 273 Kelvins, the temperatures at the surface and several hundred meters below the surface, respectively, of the ocean?
A 2.00 kg mass is connected to a spring with a spring constant of 9.00 N/m. The velocity is given by the expression v(t) = 10.0 cm/s sin
What is the maximum acceleration of the simple harmonic motion?
A. 17.5 
B. 21.2
C. 25.2
D. 30.5
E. 36.7
A CD with a diameter of 12.0 cm starts from rest and with a constant angular acceleration of 1.0 
acquires an angular velocity of 5.0 rad/sec. The CD continues rotating at 5.0 rad/sec for 15.0 seconds and then slows to a stop in 12.0 second with a constant angular deceleration. What is the tangential velocity of a point 4.0 cm from the center at the time 25.0 seconds from the start?
a. 
b. 
c. 
d. 
e. 