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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
Two positive point charges q1 = 12C and q2 = 48C are a distance 0.25 m apart. Find all the points where the total electric field is zero
Bacteria vary somewhat in size, but a diameter of 2.0 nanometers is not unusual. What would be (a) volume (in cubic centimeters) and (b) surface area (in square millimeters) of such a bacterium, assuming that it is spherical.
A capacitor is made from a thin wire of charge density lsurrounded by material with dielectric k = 2 to a radius a, What is the capacitance per unit length of this geometry
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A Carnot engine has 40 g of helium gas as its working substance. It operates between two reservoirs of temperatures T1 = 400°C and T2 = 60°C. Calculate the heat absorbed and the waste heat ejected during one cycle
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Estimate the capacitance of the series combination of capacitors shown.
A winch is used to drag a 300 N crate up a ramp at a constant speed of 68.0 cm/s by means of a rope that pulls parallel to the surface of the ramp. If the rope were suddenly to snap, what would be the acceleration of the crate immediately after the..
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