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A jeweler uses a draw plate to stretch a wire to three times its original length. Find by what factor does its resistance increase?
a horizontal true centrifugal casting operation will be used to make copper tubing. the lengths will be 1.5 m with
Two masses m1=12 kg and m2= 35 kg are held connected by a massless rope hung over a frictionless light pulley. what is the tension of the magnitude in the string
A sky diver jumps out of a plane and falls freely for 7.8 seconds before opening the parachute. What is the sky diver's speed when the parachute opens
Two students decided to fling balloons filled with M1=68.1grams of ice water at coeds who are sun batheing on the roof of asorority house two blocks east of the physics bulding. Calculate the mass of the lead sphere
Katie and Emily are riding on a circular merry-go-round that has a radius of 5 m. Katie is on a horse that is 2.5 m from the center of merry-go-round and Emily is on a tiger that is 4.5 m from the center of the merry-go-round.
a closed organ pipe resonates with frequency 6hz and an open organ pipe resonates with frequency 12hz. if the two organ
Discover how much energy per unit time a roller bladder loses by radiation from her body. Her skin temperature is 35°C and the air temperature is 30°C. Her surface area is 1.2 m 2 , of which 75% is exposed to the air. Assume skin has e = 0.97.
Find the pressure at pump discharge, rate of flow of a pump, energy required by the pump, and size of the pump motor.
A 30.0N force is being applied to one end of a 60.0cm long rigid bar at an angle of 30 degrees. Calculate the torque being applied to the shaft
a student adds two perpendicular displacement vectors of magnitude 12.0 cm and 8.0 cm. which of the following is the
A 1.5 kg block is attached to a spring by spring constant 16 N/m. While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 40 cm/s. What is the amplitude of the subsequent oscillations? What i..
question the height of a modeled airplane launched from the top of a 24ft hill is fiven by the function
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