What is pair production? Choose the best answer.
A) Energy turns into a particle and its corresponding antiparticle.
B) Energy turns into two copies of identical particles.
C) A particle splits into two completely different particles.
D) Two antimatter particles turn into ordinary matter.
E) A particle splits into two copies of itself.
A) Energy turns into a particle and its corresponding antiparticle.
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Work Done by a Gas: A gas expands at constant temperature from an initial volume of 0.040 m3 and an initial pressure of 210 kPa until its pressure drops to 135 kPa. How much work is done by the gas during this expansion? (R = 8.31 J/mol ? K)
A. 3.0 kJ B. 3.7 kJ C. 4.1 kJ D. 5.6 kJ E. 7.9 kJ
Simple Harmonic Motion: An air-track cart is attached to a spring and completes one oscillation every 5.67 s in simple harmonic motion. At time t = 0.00 s the cart is released at the position x = +0.250 m. What is the position of the cart when t = 29.6 s?
A. x = 0.0461 m B. x = 0.210 m C. x = 0.218 m D. x = 0.342 m E. x = -0.218 m
A 40-?C charge is positioned on the x axis at x = 4.0 cm. Where should a ?60-?C charge be placed to produce a net electric field of zero at the origin?
A. ?5.3 cm B. 5.7 cm C. 4.9 cm D. ?6.0 cm E. +6.0 cm
A layer of ethyl alcohol (n = 1.361) is on top of water (n = 1.333). To the nearest degree, at what angle relative to the normal to the interface of the two liquids is light totally reflected?
a. 78° b. 88° c. 68° d. 49° e. the critical angle is undefined