Phil stands at rest with both feet on a scale that reads 500 N. When he gently lifts one foot, the scale reads
A) less than 500 N.
B) 500 N.
C) more than 500 N.
Answer: B
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The primary purpose of a particle accelerator is to
A) make small particles go very fast. B) make small particles achieve large accelerations. C) create particles and study their behavior. D) produce energy for commercial use. E) test new ideas about the law of gravity.
A waffle cone has a diameter of 2.5 inches and is 5.5 inches tall. What is the volume of the waffle cone in cubic centimeters?
A) 58 cubic cm B) 150 cubic cm C) 240 cubic cm D) 440 cubic cm E) 620 cubic cm
If the speed of a continuous wave is constant, as you increase the frequency of the wave, the wave must have a proportionally _________ wavelength
Fill in the blank(s) with correct word
When radioactive decays are counted, the resulting counts vary because of their statistical nature although the experimental situation may be the same. If 106 counts are registered, the next measurement of an equivalent situation may be expected to typically vary by about how many counts?
A. 1 B. 100 C. 1000 D. 10,000 E. 100,000