What is different between a particle and its antiparticle?

a. opposite electric charge
b. opposite strangeness
c. opposite charm
d. all of the above


d
RATIONALE: There are more possible "opposites" as well.

Physics & Space Science

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A positive object touches a neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to the leaves?

A) They separate further. B) They move closer together. C) They are unaffected. D) cannot be determined without further information

Physics & Space Science

Space telescopes looking for transiting planets look for small drops in brightness; these drops are:

A) less than 10%. B) less than 1%. C) less than 0.01%. D) less than 0.0001%. E) any size.

Physics & Space Science

If an R = 1.0-k? resistor, a C = 1.0-?F capacitor, and an L = 0.20-H inductor are connected in series with a V = 150 sin (377t) volts source, what is the maximum current delivered by the source?

A. 0.007 0 A B. 27 mA C. 54 mA D. 0.31 A E. 0.34 A

Physics & Space Science

In ultrasound the __________ of the sound is much greater than in normal sound

Fill in the blank(s) with correct word

Physics & Space Science