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A Ferris wheel rotates at an angular velocity of 0.28 rad/s. Starting from rest, it reaches its operating speed with an average angular acceleration of 0.027 rad/s2. Find how long does it take the wheel to come up to operating speed?
a train travels due south at 30 ms relative to the ground in a rain that is blown toward the south by the wind. the
A charge of - 0.580uC exerts an upward force of magnitude 0.170N on an unknown charge which is a distance of 0.300m directly below it. What is the unknown charge
A car travels at a constant speed around a circular track whose radius is 2.51 km. What is the magnitude of the centripetal acceleration of the car
A shell is fired from the ground with an initial speed of 1.56 multiplied by 103 m/s at an initial angle of 40° to the horizontal. find the shell's horizontal range
A 50 kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she is above the bar 1.0 m/s. Neglect air resistance, as well as any energy absorbed by the pole, and determine her altitude as she crosses the bar.
1 2-49 a rigid tank with a volume of 2.5 m3 contains 5kg saturated liquid-vapor mixture of water at 75 degc is heated
In a dream, you find yourself pushing a huge boulder up a verysteep (35 degree) hill that is 75 meters high. The boulder weighs22,000 N. Assume that the force needed on flat ground is zero.
A 52.6-kg skateboarder starts out with a speed of 2.16 m/s. He does 89.2 J of work on himself by pushing with his feet against the ground. Calculate the change (PEf - PE0) in the gravitational potential energy
A flight attendant pulls her 69N flight bag a distance of 246m along a level airport floor at a constant velocity. The force she exerts is 37N at an angle of 58° above the horizontal. Find the coefficient of kinetic friction between flight bag and..
A coiled wire forms a spiral with 243 turns, a diameter of 2.3 cm, and an unstretched length of 27 cm. Determine the self-inductance of the coil
A cyclist starts from rest and rides in a straight line, increasing speed so that her wheels have a constant angular acceleration of 2.0 rad/s2 around their axles. determine how far has the cyclist traveled
1.using the information given above calculate the optimum tails assay. plot the cost of fuel as a function of tails
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