The quark and antiquark in a meson are always of the same flavor
Indicate whether the statement is true or false
F
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Solenoid ?1 has a length L, cross-sectional area A, and N turns. Solenoid ?2 has a length 2L, cross-sectional area 2A, and 2N turns. Which solenoid has the greater magnetic field at its center when equal currents are going through them?
a. ?1 b. ?2 c. Both have the same magnetic field. d. Since it depends on the values of A and L, none of the above are correct.
A radar pulse is bounced off the Moon at a distance of 400,000 km. What is the time from the transmitting of the pulse until its return?
a. 1.28 s c. 2.67 s b. 2.56 s d. 3.84 s
Human output of carbon dioxide is small compared to natural output by volcanoes, for example
a. True b. False Indicate whether the statement is true or false
When an acid reacts with a carbonate or hydrogen carbonate, the products are water, carbon dioxide, and ______________
Fill in the blank(s) with correct word