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Orb spiders make silk with a typical diameter of 0.15. A typical large orb spider has a mass of 0.50 .
a) If this spider suspends itself from a single 12-cm-long strand of silk, by how much will the silk stretch?
b) What is the maximum weight that a single thread of this silk could support?
A -kg box is being lifted by means of a light rope that is threaded through a single, light, frictionless pulley that is attached to the ceiling, what average power is delivered by the person pulling on the rope
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A new circus act is called the Texas Tumblers. Lovely Mary Belle swings from a trapeze, projects herself at an angle of 53, and is supposed to be caught by Joe Bob, whose hands are 6.10 above and 8.02 horizontally from her launch point. You can ignor..
A quarterback takes the ball from the line of scrimmage, runs backwards for 13.0 yards, What is the magnitude of the football's resultant displacement
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when coal is burned all carbon is converted to carbon dioxide and all sulfur is converted to sulfur dioxide. calculate
Estimate the thickness of lead shielding needed to reduce the exposure rate 2.5 m from a 5.92x10^11 Bq point source of Cs-137 to 1.0 mR/hr.
Calculate the magnitude of the gravitational force exerted on a 429-kg satellite that is a distance of 2.91 times earth radii from the center of the earth. What is the magnitude of the earth's acceleration
A galvanometer has a coil resistance of Rgalv = 89.7 ?. It is to be made into an ammeter with a full-scale deflection equal to I = 2.35 A. If the galvanometer deflects full scale for a current of Igalv = 135 mA, what size shunt resistor should be use..
The plates of a 3.5nF parallel-plate capacitor are each 0.21m^2 in area. how thick is the sheet
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