Which of the following statements about neutrinos is not true?
A) About a thousand trillion neutrinos are passing through your body every second.
B) Neutrinos are created as a by-product of the proton-proton chain.
C) Neutrinos have no electrical charge.
D) Neutrinos have a tendency to pass through just about anything without interactions, making them very difficult to detect.
E) The mass of a neutrino is 30 percent of the mass of an electron.
E
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Saturn's rings are widest open, doubling the planet's brightness, when it is at:
A) opposition. B) quadrature. C) greatest elongation. D) equinox. E) solstice.
To measure the current through and the voltage across a resistor in a circuit, you should place the ammeter in _____ with the resistor and the voltmeter in _____ with the resistor
a. series, series b. parallel, series c. parallel, parallel d. series, parallel
A 3.50-g bullet, traveling at 250 m/s, hits a hinged, light board at right angles, at a distance of 55.0 cm from its hinges, and emerges on the other side of the board with a speed of 150 m/s
The board is initially stationary but is free to rotate about its hinges and has a moment of inertia of 0.275 kg?m2. What is the angular speed of the board after the bullet emerges? A) 0.700 rad/s B) 3.05 rad/s C) 6.10 rad/s D) 0.0212 rad/s E) 22.6 rad/s
Which of the following explains why navigators a few hundred years ago found it much more difficult to determine their longitude than their latitude?
A) Determining longitude requires mathematical techniques that were not known at the time. B) Determining longitude without modern instruments requires being able to see the Moon. C) Determining longitude requires much more precise measurements of angles in the sky than does latitude. D) Determining longitude requires having an accurate clock.