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Q1. A banked circular highway curve is designed for traffic moving at 83.0 km/h. The radius of the curve is 159 m. Traffic is moving along highway at 48 km/h on a rainy day. What is the minimum coefficient of friction between tires and road that will allow cars to negotiate the turn without sliding off the road?
Q2. Chef at the infamous Fattening Tower of Pizza tosses the spinning disk of uncooked pizza dough into the air. The disk's diameter increases during the flight, whereas its rotational speed.
A 67 kg man weighs 637 N on the Earth's surface. How far above the surface of the Earth would he have to go to "lose" 19 percent of the body weight.
Which is safer as a road material
Two speakers, one directly behind the other, are each generating a 429-Hz sound wave. What is the smallest separation distance between the speakers that will produce destructive interference at a listener standing in front of them? Take the speed of ..
How much work did the movers do (horizontally) pushing a 190-{rm kg} crate 11.2 m across a rough floor without acceleration, if effective coefficient of friction was 0.60.
What is the tension in the string
A 73 trampoline artist jumps vertically upward from the top of a platform with a speed of 4.0. If the trampoline behaves like a spring of spring constant 6.2×104, how far does he depress it.
A 0.50-kg object is attached to an ideal massless spring of spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.7 m/s at the equilibrium position.
On December 3 at 11 pm you look toward the eastern horizon and see the bright star Procyon rising. At approximately what time would Procyon rise one week later, on December 9.
If water at 15°C is flowing through a 3cm diameter pipe with a velocity of 50 cm-1, calculate the Reynolds number. Is the flow turbulent or laminar?
A bat in a cave emits a sound pulse and receives an echo 0.22 second later. Assuming that the speed of sound is 339 m/s, how far did the sound (the longitudinal wave) travel during this time.
On another planet the simple pendulum consisting of a 0.154 kg mass suspended on a 1.20 m long string has a period of 3.860 seconds. What is acceleration on this planet.
A 346-, uniform, 1.04- bar is suspended horizontally by two vertical cables at each end. Cable A can support a maximum tension of 506.0 without breaking, and cable B can support up to 436.0. You want to place a small weight on this bar. What is the h..
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