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A sphere of radius R and mass M is initially spinning about its center with a given angular velocity of omega. The axis of its rotation is horizontal and therefore parallel to the table. It is then placed on the level table with its center of mass velocity zero and there is kinetic friction between the sphere and the table. Find how far the sphere travels before it stops slipping. Find how much time this takes and find the final speed of the sphere's center of mass at that time.
Assume you are swimming in a river while a friend watches from the shore. In calm water, you swim at a speed of 1.25 m/s. The river has a current that runs at a speed of 1m/s.
In a certain automobile engine, 17% of the total energy released in burning gasoline ends up as mechanical work. What is the engine's mechanical power output if its heat output is 78 kW
A person with a weight of 237 lb stands on two feet with their weight equally distributed between the two shoes, What is the pressure on each shoe independently
Marathon swimmer DJ is swimming in the Atlantic Ocean. She is moving north with a velocity of 2 m/s relative to the water. What is DJ's absolute or true velocity
A baseball player hits a ball at 49.2m/s at an angle of 29.0 degrees above the horizontal. The outfield bleachers are 145 m away from the home plate.
Given a typical wave function describing the state of a particle, how would you determine weather the function is properly normalized while being precise and specific and by providing math expressions?
A charge of +1.80 mC is located at x = 0, y = 0 and a charge of -4.09 mC is located at x = 0, y = 3.16 m. What is the electric potential due to these charges at a point with coordinates x = 4.09 m, y = 0.
A uniformly charged insulating rod of length 19.0 cm is bent into the shape of a semicircle. The rod has a total charge of -7.50 µC. Find the magnitude and direction of the electric field at O, the center of the semicircle. EO = N/C.
q1. a pinball machine launches a 139 g ball with a spring-driven plunger. the game board is inclined at 6 above the
The femur is a bone in the leg whose minimum cross-sectional area is about 3.4 x 10-4 m2. Find the maximum stress that this bone can withstand
A circuit consists of a battery connected to three resistors (65?, 26?, and 170?) in parallel. find the current through each resistor
About 50000 years ago, a meteor crashed into the earth near present-day Flagstaff, Arizona. How much kinetic energy did this meteor deliver to the ground
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