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In the absence of air resistance, a dropped object will continue to accelerate as it falls. But if there is air resistance, the situation is different. The drag force due to air resistance depends on the velocity of an object and operates in the opposite direction of motion. Thus as the object's velocity increases, so does the drag force until it eventually equals the force due to gravity. At this point the net force is 0 and the object ceases to accelerate, remaining at a constant velocity called the terminal velocity. Now consider the following experiment to determine how terminal velocity depends on the mass (and therefore on the downward force of gravity) of the falling object. A helium balloon is rigged with a small basket and just the right ballast to make it neutrally buoyant. Mass is then added and the terminal velocity is calculated by measuring the time it takes to fall between two sensors once terminal velocity has been reached. The drag data set contains the results of such an experiment conducted by some undergraduate physics students. Mass is measured in grams and velocity in meters per second. (The distance between the two sensors used for determining terminal velocity is given in the height variable.) Determine which of the following "drag laws" matches the data best:
Which country seems to have a more unequal distribution of income? For data, consult the World Bank's World Development Indicators online database or the CIA's World Factbook, also available online. Note which data source you used.
Trina's paycheck earning p, varies directly as the number of hours, h, she works. If she works 19 hours and earns $187.15 what should she earn if she worked 40 Hours
If the wholesale price of an item is 18.7% less than the retail price. The wholesale price is how many times the retail price?
Determine why, given the advantages of international diversification, some firms choose not to expand internationally. Provide specific examples to support your response.
Next, suppose that interests are compounded continuously. Compute S(t) in that case by letting d tend to infinity in the previous equation
On an 8 × 8 chessboard, a rook is allowed to move any number of squares either horizontally or vertically. How many different paths can a rook follow.
1 the relationship of the seasons to the suns elevation at solar noon plotting the suns elevation at solar noon you are
Although his height is only 5 ft 7 in., Spud Webb, formerly of the Sacramento Kings, had a vertical leap of about 44 in. What is his hang time?
assume jim had executed 15 splits before his last split of 20 seconds. if his eventual time in the road race isnbsp405
Compute the average number of bits required to encode a symbol with each code and compute the variances of this number of bits for each code. Which tie-breaking procedure produced the smaller variance in the number of bits required to encode a sym..
Problem 1: A burglar alarm key pad contains ten digits. The disarm code consists of four digits.
Write down the form of the partial fraction expansion for given expansion
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