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A flat curve on a highway has a radius of 290 meter. A car rounds the curve at a speed of 22.0 m/s.
(a) Find the minimum coefficient of friction that will prevent sliding?
(b) Assume the highway is icy and the coefficient of friction between the pavement and tires is only one-third what you find in part (a). Calculate the maximum speed of the car so it can round the curve safely?
m/s
A pipe carrying 20°C water has a diameter of 3.5 cm. Estimate the maximum flow speed if the flow must be streamline
A 0.80 kg ball and a 4.20 kg ball are connected by a 78.0 cm long massless, rigid rod. The structure rotates about its center of mass at 250 rpm. What is the rotational kinetic energy of the structure?
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a pendulum bob of mass m is hung from a light stringthe bob then moves in a horizontal circle of radius r and the
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A 74.8 g sample of copper at 143.2°C is added to an insulated vessel containing 165 mL of glycerol, C3H8O3 (l) (d = 1.26 g/mL), at 24.8°C. The final temperature is 31.1°C. The specific heat of copper is 0.385 J g-1°C-1
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