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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 3.31 m/s, and an 83.4-kg person feels a 437-N force pressing against his back. What is the radius of a chamber?
A 72 kg meteorite buries itself 5.0 m into soft mud. The force between the meteorite and the mud is given by , What was the speed of the meteorite
A 2.3kg wood block is pulled along a wood floor at a steady speed. What is the magnitude of the force pulling on the first block
An elevator weighing 2500 N ascends at a constant speed of 8.0 m/s. How much power must the motor supply to do this
You are given 65.000 cm of copper wire with diameter 7.0000 mm. At what rate is thermal energy generated in the loop
1) Compute the change in the internal energy of a thermodynamic system under the following scenarios: (i) 50 J of heat added and 40 J work extracted, (ii) 50 J of heat added and 75 J work extracted,
A 2.00-m tall basketball player is standing on the floor 10.0 m from the basket. If he shoots the ball at a 40 degree angle from the horizontal, at what initial speed must he throw the ball so that it goes through the basket without striking the b..
A blue car with mass mc= 459 kg is moving east with a speed of vc= 20 m/s and collides with a purple truck with mass mt= 1246 kg that is moving south with a speed of vt= 10 m/s. find the magnitude of the initial momentum of the car
The angular position of a point on the rim of a rotating wheel is given by ? = 7.68t - 5.13t2 + 1.73t3, where ? is in radians and t is in seconds. find the angular velocities at the end of this time interval
Two mirrors meet at a 133° angle. If light rays strike one mirror at 40°, at what angle ? do they leave the second mirror?what is the value of h.
A car traveling east and a minivan traveling south collide in a completely inelastic collision at a perpendicular intersection. what is the speed of the vehicles immediately after collision
A sled and rider with with a combined mass of 50kg are at the top of a hil a height of 14m above the level ground below, After the push, what is the total mechanical energy of the sled and rider at the top of the hill
A major artery has a cross sectional area of 1.07 cm^2. What is the average speed of blood flowing through the smaller arteries
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