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A 4.0-m-long steel wire has a cross-sectional area of 0.050cm^2. Its proportional limit has a value of 0.0016 times its Young's modulus. Its breaking stress has a value of 0.0065 times its Young's modulus. The wire is fastened at its upper end and hangs vertically.
What is the maximum weight that the wire can support?
_____N
The distance between atoms in a solid is typically around 2.0 x 10-10 m What is the wavelength of an electron with a kinetic energy of 110 eV
Steam at 100 degrees C is added to ice at 0 degrees C. Find the amount of ice melted and the final temperature when the mass of steam is 13 g and the mass of ice is 48 g
The oxygen taken in by the body reacts with fats, carbohydrates, and protein, liberating energy internally at a rate of about 1.96×104 J/Liter. what is his rate of oxygen consumption
An airplane with a speed of 87.7 m/s is climbing upward at an angle of 35.1 ° with respect to the horizontal. When the plane's altitude is 533 m, the pilot releases a package.
An object with a charge of -2.6?C and a mass of 1.2×10?2kg experiences an upward electric force, Find the magnitude of the electric field
a ball with a mass of 12 kg is traveling towards the left at a speed of 10 ms another ball with a mass of 14 kg is
The head of a grass string trimmer has 100 g of cord wound in a light cylindrical spool with inside diameter 3.00 cm, What average power is delivered to the head by the trimmer motor while it is accelerating
Capacitors are used in many applications where one needs to supply a short burst of relatively large current. Approximately what is the resistance of the lamp if the current reaches 5.0% of its original value in 1.8 ms
A circus performer stretches a tightrope between two towers. He strikes one end of the rope, find the tension in the tightrope
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
A disk-shaped merry-go-round of radius 2.63 m and mass 155 kg rotates freely with an angular speed of 0.744 rev/s. Calculate the initial and final kinetic energies for this system
A particle experiences two simultaneous harmonic motions x(t) = x1(t) + x2(t), where x1(t) = cos(3t) and x2 = cos(3.2t + pi/6). Simplify x(t) and determine the beat period
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