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A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.961 rad/s. You, with a mass of 74.7 kg, walk clockwise around the platform along its edge at the speed of 1.05 m/s with respect to the platform. Your 21.1-kg poodle also walks clockwise around the platform, but along a circle at half the platform\'s radius and at half your linear speed with respect to the platform. Your 17.1-kg mutt, on the other hand, sits still on the platform at a position that is 3/4 of the platform\'s radius from the center. Model the platform as a uniform disk with mass 90.3 kg and radius 1.97 m. Calculate the total angular momentum of the system.
Suppose you carry a bag of groceries weighing 100 N from your car to your kitchen, a distance of 61 m, without raising or lowering the bag
A uniform-density 8 kg disk of radius 0.20 m is mounted on a nearly frictionless axle. Initially it is not spinning. A string is wrapped tightly around the disk, and you pull on the string with the constant force of 45 N through a distance of 0.7 ..
The rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket provides. What is the current coming from the wall socket
A spelunker (cave explorer) drops a stone from rest into a hole. The speed of sound is 343 m/s in air, and the sound of the stone striking the bottom is heard 4.88 s after the stone is dropped. How deep is the hole?
Car traveling east at 40m÷s passes atrooper hiding at the roadside.the driver uniformly reduces his speed to 25m÷s in3,5s....what the magnitude and direction of the car acceleratioas it slow down.
a 2.3 kg object attached to an ideal spring is undergoing simple harmonic motion. its displacement is given by function, what is the maximum accleration of the object
Dinah is playing cards with her friends and it is her turn to deal. A card has a mass of 2.3 g and it slides 0.35 m along the table before it stops. If the coefficient of kinetic friction between the card and the table is 0.24 what was the init..
A solid wood door 1.00 m wide and 2.00 m hight is hinged alone one side and has a total mass of 40.0 kg, whats the final angular speed of the door
A drag racer, starting from rest, speeds up for 402 m with an acceleration of +21.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.75 m/s2. How fast is the racer moving 2.90 102 m after the parachute opens?
In San Francisco a very simple technique is used to turn around a cable car when it reaches the end of its route. The car rolls onto a turntable, what is the net torque (in N*m) applied to the car
charge moving perpendicularly to an electric. an electron has a kinetic energy equal to 2e-16 j moves horizontally into a uniform field. find the force of the electron between the plates and acceleration
write a 1000- to 1200-word paper comparing the personality theories of freud jung rogers and maslow. outline how each
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