Synchrotron radiation found with active nuclei implies strong ________ fields directing and accelerating the electrons trapped in them
Fill in the blank(s) with correct word
magnetic
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We are warmed on a hot moist day because water molecules in the air striking our bodies
A) transfer some of their kinetic energies to us. B) gain kinetic energy as they change state. C) form an insulating layer on our bodies.
Three resistors having resistances of 4.0 ?, 6.0 ?, and 10.0 ? are connected in parallel. If the combination is connected in series with an ideal 12-V battery and a 2.0-? resistor, what is the current through the 10.0-? resistor?
A) 0.59 A B) 2.7 A C) 6.4 A D) 11.2 A E) 16 A
In the fissioning of uranium, the typical amount of energy released per nucleon is
A) 0.025 eV. B) 100 MeV C) 0.9 MeV. D) 200 MeV. E) 10 MeV
X-rays with a wavelength of 0.00100 nm are scattered at 130° by free electrons. What is the kinetic energy of each recoil electron?
(1 eV = 1.60 × 10-19 J, melectron = 9.11 × 10-31 kg, c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s) A) 0.50 MeV B) 0.99 MeV C) 2.0 MeV D) 0.34 MeV E) 0.68 MeV