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a steel wire of diameter .8mm and legth of 1 meter is clamped at two points a and b which are apart 1m and in the same horizontal plane. a block is hung from the middle point of the wire such that the middle point sags by 1cm. calculate the mass
The company monthly fixed expense is $24000 prepare a cost volume profit graph for the company up to sales level of $8000 and estimate the company's break-even point in unit sales using your cost-volume profit graph
If it takes 14ms for a bat to receive the ultrasonic sound wave reflected off a mosquito, how far is the mosquito from the bat? Take the speed of sound as 345 m/s.
Calculate the acceleration of a 2000-kg, sin-gle-engine airplane just before takeoff when the thrust of its engi ne is 500 N - Calculate the acceleration of a 300 000-kg jumbo jet just before takeoff when the thrust for each of its four engines is 3..
A baseball leaves a pitcher's hand horizontally at a speed of 156km/h. The distance to the batter is 18.3 m. (overlook the effect of air resistance.) (a) How long does ball take to travel the first half of that distance? (b) The second half? (c) H..
a coil that has a resistance r and an inductance l has a power factor equal to 0.866 when driven at a frequency of
A charge q = 5.6 μC is placed at the origin, and asecond charge q = -4.2 μC is placed at x = 1m. find the electric potential midway between the two charges
An elite Tour de France cycler can maintain an output power of 450 W during a sustained climb. At this output power, how long would it take an 85 kg cycler (including the mass of the bike) to climb the 1100 meter high Alpe d'hues mountain?
Two people initially separated by 75 m move toward each other. One with a speed of 3 m/s, how long is it before they meet
Provide an example of popular culture's use of the term black hole. Why do you think a mysterious idea as that of a black hole has captured the public imagination?
What is the minimum coefficient of static friction between the road and the tires on a car for the car to go around a flat curve at 45.0 mph
An aluminum sphere of radius 10.7 cm is heated from 110.0 °F to 182.0 °F. (The linear expansion coefficient for aluminum is 2.20 10-5 K?1.), Find the radius change
Assume that the vapor is an ideal gas (not a good approximation). a) How much work is done on the ethanol? b) What is the change in internal energy of the ethanol?
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