In which of the following nuclear processes are other forms of energy converted into nuclear energy? In other words, in which of these processes is nuclear energy created?
A) In nuclear fission of the lighter elements and nuclear fusion of the heavier elements.
B) Exothermic ["heat producing"] chemical reactions.
C) Supernova explosions, i.e., explosions of stars.
D) Endothermic ["heat consuming"] chemical reactions.
E) In nuclear fusion of the lighter elements and nuclear fission of the heavier elements.
C
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Taurus the Bull is a(n)
a. star. b. asterism. c. galaxy. d. constellation.
Given the equation 
, which answer provides the best description of a possible physical situation?
A. A 3.00-kg mass is suspended from the ceiling. B. A 2.00-kg mass hanging over a pulley drags a 3.00-kg mass along a frictionless horizontal surface. C. A 3.00-kg mass hanging over a pulley drags a 2.00-kg mass along a frictionless horizontal surface. D. A 3.00-kg mass hanging over a pulley drags a 5.00-kg mass along a frictionless horizontal surface. E. A 5.00-kg mass hanging over a pulley drags a 3.00-kg mass along a frictionless horizontal surface.
The gauge pressure inside a pressure cooker is 13 psi. What is the net force on the lid of the pressure cooker if the lid's area is 110 square inches?
The period of a satellite circling planet Nutron is observed to be 84 s when it is in a circular orbit with a radius of 8.0 × 10^6 m. What is the mass of planet Nutron?
a. 6.2 × 10^28 kg b. 5.0 × 10^28 kg c. 5.5 × 10^28 kg d. 4.3 × 10^28 kg e. 3.7 × 10^28 kg