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At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. People sit in seats facing the axis, their backs against the outer wall. At one instant the outer wall moves at a speed of 3.12 m/s, and an 81.9-kg person feels a 466-N force pressing against his back. What is the radius of a chamber?
Consider a mountain range that has been uplifting at a rate of 10 m/Myr for the past 5 Myr, the mountain range to come into a steady state with tectonic uplift, Estimate the soil thickness on the side of the mountain
King Arthur's knights use a catapult to launch a rock from their vantage point on top of the castle wall, How far from the castle wall does the launched rock hit the ground
When a high-speed passenger train traveling at 170 km/h rounds a bend, engineer is shocked to see that a locomotive has improperly entered onto the track from a siding and is a distance D = 601 m ahead.
A chartered airplane flies 100 km east, then 350 km northwest, and then 150 km at 30° west of south. After an additional displacement, the plane is back where it started. Find the magnitude and the direction of the last leg of the journey.
a projectile is fired with an initial velocity of 35 m/s at an angle of 30 degrees above horizontal of a 30 feet tall building. find (a) the max height of the projectile
A 17 kg girl slides down a playground slide that is 3.1 m high. When she reaches the bottom of the slide, her speed is 1.3 m/s. what is the coefficient of friction between the girl and the slide
Your cup of coffee is too hot to drink when served at 95.What is mass of an ice cube, taken from a -19.0 freezer, that will cool your coffee to a pleasant 62.
An x-ray tube is operated at 45000 V. Find the minimum wavelength of the radiation emitted by this tube
Discuss the cause and different mechanisms available. Recognize and discuss the flow control techniques on which they are based? Determine the pros and cons of each?
A 25 cm Diameter coil consists of 50 turns of circular copper wire 2.5 mm in diameter. Determine the rate at which tyhermal energy is produced
An object has a kinetic energy of 317 J and the momentum of magnitude 24.0 kg · m/s.
An expandable cylinder has its top connected to a spring with force constant 2 x10^3 N/m. The cylinder is filled with 6 L of gas with the spring relaxed at a pressure of 1.0 atm and a temperature of 20°C.
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