The "father" of atomic materialism was
A) Plato. B) Ptolemy. C) Kepler. D) Democritus. E) Newton.
D
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The side of a cube is decreased by 6%. The percentage decrease of the volume of the cube is
A. 6%. B. 9%. C. 12%. D. 17%.
A string with fixed ends is made to go into standing wave patterns. At a given tension, the lowest frequency for which such a pattern exists is 150 Hz. Which of the following frequencies would also cause a standing wave pattern in this case?
a. 250 Hz b. 500 Hz c. 750 Hz d. All of the above frequencies will cause a standing wave pattern in this case.
Except for 1H and 3He, all nuclei having fewer ______________ than ______________ are radioactive
Fill in the blank(s) with correct word
A parallel-plate capacitor, made of two circular plates of radius R = 10 cm, is connected in series with a resistor of resistance R = 100 ? and a battery of emf E = 10 V
What is the maximum value of the magnetic field induced by the displacement current between the plates, at a distance r = 5 cm from the axis of the plates while the capacitor is being charged? A) 3 × 10-7 T B) 5 × 10-7 T C) 2 × 10-7 T D) 1 × 10-7 T E) 4 × 10-7 T