A person throws a ball horizontally from the top of a building that is 24.0 m above the ground level. The ball lands 100 m down range from the base of the building. What was the initial velocity of the ball?
A) 202 m/s
B) 9.80 m/s
C) 19.6 m/s
D) 45.2 m/s
E) 94.4°
D
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Which of the following books of tabulated predicted planet positions was not based on uniform circular motion?
a. the Rudolphine Tables by Kepler b. the Prutenic Tables based on Copernicus' model c. the Alphonsine Tables based on Ptolemy's observations and calculations
A 60.0-Hz AC generator with a peak voltage of 110 V drives a series RC circuit with R = 10.0 ? and C = 300 ?F. The impedance is
A. 4.68 ?. B. 8.84 ?. C. 10.0 ?. D. 13.4 ?. E. 18.8 ?.
Which of the following is an advantage that liquid water has as a biological solvent compared to other alternatives?
A) when it freezes it becomes less dense B) it is a liquid over a wide temperature range and remains liquid at higher temperatures C) it is able to dissolve many things D) all of these are advantages
A 2.00-m rod of negligible mass connects two very small objects at its ends. The mass of one object is 1.00 kg and the mass of the other is unknown. The center of mass of this system is on the rod a distance 1.60 m from the 1.00-kg mass object
What is the mass of the other object? A) 4.11 kg B) 3.22 kg C) 4.00 kg D) 0.250 kg E) 0.800 kg