Which of the following particles participate in the strong interaction?
a. Mesons and leptons.
b. Mesons and neutrinos.
c. Neutrinos and leptons.
d. Mesons and baryons.
e. Baryons and leptons.
d
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Two slits separated by 0.10 mm are illuminated with green light (? = 540 nm). Calculate the distance (in cm) from the central bright-region to the fifth bright band if the screen is 1.0 m away
a. 2.3 b. 2.5 c. 2.7 d. 2.1 e. 2.0
The amount of energy equivalent to one kilogram of mass at rest is
A) 9.0 × 1016 J. B) 3.0 × 108 J. C) 4.5 × 1016 J. D) 6.0 × 10-3 eV. E) 1.2 × 108 eV.
If the maximum possible accuracy in measuring the velocity of a particle increases, the maximum possible accuracy in measuring its position will
A) increase. B) decrease. C) not be affected.
At a point in space where the magnetic field is measured, the magnetic field produced by a current element
a. points radially away in the direction from the current element to the point in space. b. points radially in the direction from the point in space towards the current element. c. points in a direction parallel to the current element. d. points in a direction parallel to but opposite in direction to the current element. e. points in a direction that is perpendicular to the current element and perpendicular to the radial direction.