First Law of Thermodynamics: During an isochoric process, the internal (thermal) energy of a gas decreases by 50 J. How much heat is added to the gas during this process?
A. 0 J
B. 50 J
C. -50 J
D. 25 J
E. -25 J
Answer: C
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In the diagram below, draw the transition that would emit a photon with the shortest wavelength
What will be an ideal response?
Consider a particle with mass m. As its speed approaches the speed of light, its relativistic momentum magnitude
approaches:
A. infinity B. mc C. m D. zero
A blue laser beam is incident on a metallic surface, causing electrons to be ejected from the metal. If the frequency of the laser beam is increased while the intensity of the beam is held fixed,
A) the rate of ejected electrons will increase and their maximum kinetic energy will increase. B) the rate of ejected electrons will remain the same but their maximum kinetic energy will decrease. C) the rate of ejected electrons will remain the same but their maximum kinetic energy will increase. D) the rate of ejected electrons will decrease and their maximum kinetic energy will increase.
At what distance could one theoretically distinguish two automobile headlights separated by 1.5 meters? Assume a pupil diameter of 0.50 cm and yellow headlights seen at the wavelength 5.0 × 10^-7 m. Assume eye fluid has an average n = 1.33
a. 6.0 km b. 12 km c. 9.0 km d. 3.0 km e. 16 km