Electrons carry a
A) positive charge.
B) negative charge.
C) neutral charge.
D) Variable charge.
B
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A thin film appears yellow when illuminated with white light. The color being cancelled by destructive interference is
A) red. B) green. C) white. D) blue. E) none of the above
A proton in a certain particle accelerator has a kinetic energy that is equal to its rest energy. What is the momentum of the proton as measured by a physicist working with the accelerator? (c = 3.00 × 108 m/s, mproton = 1.67 × 10-27 kg)
A) 2.51 × 10-19 kg ? m/s B) 2.89 × 10-19 kg ? m/s C) 4.34 × 10-19 kg ? m/s D) 5.01 × 10-19 kg ? m/s E) 8.68 × 10-19 kg ? m/s
The ordering of the atmospheric layers of the Sun from outer to inner is chromosphere, corona, photosphere
a. True b. False Indicate whether the statement is true or false
A 450-kg sports car accelerates from rest to 100 km/h in 4.80 s. What is the magnitude of the net force exerted on a 68.0 kg passenger during the acceleration?
A) 394 N B) 82.0 N C) 342 N D) 311 N