Strangeness is conserved observed in strong and electromagnetic interactions, but not in weak interactions
Indicate whether the statement is true or false
T
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As the Moon and Earth pull on one another, the oceans bulge about 1m on opposite sides of the Earth. In Earth's daily rotation, the area that passes the bulge experiences high tide. The time of the high tides fluctuates because
A) not all areas of Earth use daylight savings time. B) while Earth spins on its axis, the Moon orbits the Earth—the timing is a bit off. C) as Earth spins on its axis, the Moon spins on its own axis—the timing is a bit off.
The Copernican Principle notes that we are nothing special, not at the center of anything. Apply it to the work of Harlow Shapley
What will be an ideal response?
An astronaut sets up a pendulum on the Moon, where the acceleration due to gravity is 1/6 that of Earth. If she finds that she must push the pendulum with a frequency of 0.10 Hz to maintain a swinging motion, what is the length of the pendulum?
a. 4.1 m b. 1.6 m c. 99 m d. 7.8 m
A 120-V rms voltage at 60.0 Hz is applied across an inductor, a capacitor, and a resistor in series. If the peak current in this circuit is 0.8484 A, what is the impedance of this circuit?
A) 200 ? B) 141 ? C) 20.4 ? D) 120 ? E) 100 ?