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A patrol car is parked 65 feet from a long warehouse . The revolving light on top of the car turns at a rate of 20 revolutions per minute. How fast is the light beam moving along the wall when the beam makes angles of 0 = 45°, B = 60°, and B = 85° with the line perpendicular from the light to the wall? (Round your answers to two decimal places.)
(a) θ = 45°
(b) θ = 60°
(c) θ = 85°
A cylindrical aluminium pipe of length 1.42 m has an inner radius of 1.90*10-3 m and an outer radius of 2.90*10-3 m. The interior of the pipe is totally filled with copper. What is the resistance of this unit?
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Young's double slit experiment arrives at a point on the screen one-half wavelength behind the wave from the other slit, which is observed at that point?
A person weighs 836 N in air and has a body fat percentage of 20.5%. What is the overall density of this person's body
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A 1500 kg elevator moves upward with constant spped through a veticle distance of 25m. Explain how much work was done by the tension in the elevator cable?
Three objects are held in place on three corners of a square, with sides of length 1.55 m. Find the electric potential at the fourth corner of the square
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The basement membrane of the glomerulus has the following properties: Rp = 5 nm, the total glomerular membrane areas is 1.5 m2, what is the fractional pore area
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