According to the standard model, a quark and its antiquark may have the same
a. spin.
b. baryon number.
c. charge.
d. All of the above may be the same.
a
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A 10.0-m-long copper wire with cross-sectional area 1.25 × 10^–4 m2 is bent into a square loop, and then connected to a 0.25-V battery. The loop is then placed in a uniform magnetic field of magnitude 0.19 T. What is the maximum torque that can act on this loop? The resistivity of copper is 1.70 × 10^–8 ?·m
a. 2.2E+2 N·m b. 1.8E+2 N·m c. 9.7E+2 N·m d. 5.6E+2 N·m
Graphical Analysis: The graph in the figure shows the position of a particle as a function of time as it travels along the x-axis.(a) What is the magnitude of the average velocity of the particle between t = 1.0 s and t = 4.0 s?(b) What is the average speed of the particle between t = 1.0 s and t = 4.0 s?
What will be an ideal response?
The Perseid meteor shower gives us about a meteor every minute in mid:
A) January. B) May. C) August. D) October. E) November.
A series ac circuit consists of a voltage source of frequency 60 Hz and source voltage amplitude 345 volts, a 701-? resistor, a 1.6-?F capacitor, and an inductor of inductance L
(a) What must be the value of L for the phase angle to be zero? (b) When L has the value calculated in part (a), what is the current amplitude in the circuit?