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Does the length of the Guy West Bridge ever change? Estimate the difference in the length of the footbridge between the hottest and coldest day of the year.
a. Estimate the highest and lowest temperature of the year in Fahrenheit. Convert these to Celsius and Kelvin.
b. estimate the length of the bridge(usethe internet or go pace it out!!).
c. What isthe walkway on the bridge made of? Look up the thermal expansion coefficient kf the material (use material that haslargest coefficient) in your text and calculate your answer for the difference in length.
When the walkway exerts a load force of 9900 N on one of the support points, through what distance does the point move down?
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a basketball player who is 2 m tall is standing on the floor 10 m from the basket. If he shoots the ball at a 40.0 degree angle with the horizontal, at what initial speed should he throw so that is goes through the hoop without striking the backbo..
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The process is claimed to produce 2000 J/min of work and to require an undisclosed amount of heat transfer with a heat reservoir at 300 K. Should inventor be issued a patent of this device.
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An air puck of mass m1 = 0.30 kg is tied to a string and allowed to revolve in a circle of radius R = 1.0 m on a frictionless horizontal table. The other end of the string passes by a hole in the center of the table, and a mass m2 = 1.20 kg is att..
An 7.80 ball, hanging from the ceiling by a light wire 105 long, is struck in an elastic collision by a 2.20 ball moving horizontally at 5.00 just before the collision. Find out the tension in the wire just after the collision.
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