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On a roller coaster ride the total mass of the cart - with passengers included - is 290 kg. PeakK is at 44.5 m above the ground, peakL is at 28.0 m. The speed of the cart atK is 19.0 m/s, at L it is 12.6m/s. (The wheel mechanism on roller coaster carts always keeps thecarts safely on the rail.)A.) How much energy is lost due to friction between the two peaks?B.) The radius of curvature of the rail at peak L is 10.2 m. What isthe magnitude of the net force on a 73.8 kg passenger at this point?
A disk-shaped merry-go-round of radius 3.02 m and mass 169 kg rotates freely with an angular speed of 0.692 rev/s. What is the final angular speed of the merry-go-round
A conical pendulum is formed by attaching a 0.400kg ball to a 1.00m -long string, then allowing the mass to move in a horizontal circle of radius 40.0cm, What is the ball's angular velocity, in rpm
A small particle with a mass of 2 kg carrying a charge of 2nC is at the surface of a charged spherical conductor of radius 3 mm. find the acceleration of the particle
You bike at 10.3 m/s directly away from your neighbor\'s trumpet sound and toward the sound of another neighbor\'s trombone, What frequency is the trombonist producing
A microphone is attached to a spring that is suspended from the ceiling, as the drawing indicates. determine the amplitude of the simple harmonic motion
Nichrome wire of cross-sectional radius 0.791 mm is to be used inwinding a heating coil. If the coil must carry a current of9.25 A when a voltage of 1.20x102 V is applied acroosits ends, find a) the required resistance of the coil and b) the lengt..
If a 4.0 kg mass goes 15 m/s in a circular path whose radius of curvature is 75 m, what is the force of tension in the string of the pendulum
A pilot is flying an airplane that is used for aeriel surverying to make a map of ground detail of New Jersey. If the scale of the map is to be 1:50,000 and the camera has focal length of 6in
1. an object moves along the x axis according to the equation x3.00t 2 -2.00t3.00 where x is in meters and t is in
You would like to store 8.1 J of energy in the magnetic fieldof a solenoid. The solenoid has 530 circular turns ofdiameter 7.2 cm distributed uniformly along its 28 cmlength. How much current is needed?
An ideal gas at 300k has a volume of 15 liters at 15atm. calculate the final volume of the system, the work done by the system, the heat entering or leaving the system, the change in internal energy and the change in the enthalpy when the gas unde..
A student (m= 75 kg) falls freely from rest and strikes the ground. throughout the collision with ground, he comes to rest in a time of 0.040 s. the average force exerted on him by the ground is +18 000 N.
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