What is meant by "neutrino oscillation"?
What will be an ideal response?
Japanese physicists found the neutrinos can change to a different type of neutrino in flight, and 2/3 of them are doing so in the eight minutes from the Sun's core to Earth.
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A crack is 1 mm long and has a 1-nm radius of curvature at the crack tip. What is the magnitude of the stress concentration factor for this crack?
(a) 2 (b) 20 (c) 200 (d) 2000
A uniform cylinder of radius R, mass M, and length L rotates freely about a horizontal axis parallel and tangent to the cylinder, as shown below. The rotational inertia of the cylinder about this axis is
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A.
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D.
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.Two long parallel wires each carry a current of 5.0 A directed to the east. The two wires are separated by 8.0 cm. What is the magnitude of the magnetic field at a point that is 5.0 cm from each of the wires?
a. 72 ?T b. 48 ?T c. 24 ?T d. 96 ?T e. 32 ?T
A heat pump has a coefficient of performance that is 60% of the Carnot heat pump coefficient of performance. The heat pump is used to heat a home to 24.0°C during the winter with the low temperature reservoir at the outdoor temperature
At which outdoor temperature would it be more efficient to add the energy directly to the interior of the home than use it to run the heat pump? A) -25.2°C B) -154°C C) -40.0°C D) -83.4°C E) -4.00°C