A proton with a kinetic energy of 0.20 keV follows a circular path in a region where the magnetic field is uniform and has a magnitude of 60 mT. What is the radius of this path?
a. 4.1 cm
b. 2.9 cm
c. 3.4 cm
d. 5.1 cm
e. 2.4 cm
c
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A mass of 1.53 kg is attached to a spring and the system is undergoing simple harmonic oscillations with a frequency of 1.95 Hz and an amplitude of 7.50 cm. What is the total mechanical energy of the system?
A) 0.844 J B) 0.646 J C) 0.633 J D) 0.955 J E) 0 J
The ____________________ are theories that unify the electromagnetic, weak and strong forces at extremely high energies
Fill in the blank(s) with correct word
How many molecules are in 1.00 mol of sulfur dioxide, SO2?
a. 64.1 b. 64.1 × 6.02 × 10^23 c. 12.0 × 10^23 d. 6.02 × 10^23
The number of daylight hours before 12 noon is ______________ the number of daylight hours past 12 noon
a. greater than b. less than c. approximately the same as