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An earth satellite moves in a circular orbit at a speed of 5685 m/s. Evaluate what is its orbital period?
A person in a boat sees a ?sh in the water of index 1.33 at an angle of 54 degrees relative to the water's surface. What is the true angle relative to the water's surface
Two kids are on a merry-go-round. The boy, located 3m from the center of the merry-go-round, is feeling a centripetal acceleration of 2 m/s2. What is her centripetal acceleration
A 17 kg body is moving through space in the positive direction of an x axis with a speed of 310 m/s when, due to an internalexplosion, it breaks into three parts. One part, with a mass of 6.1kg, moves away from the point of explosion with a speed ..
How much work should be done to accelerate a baton from rest to an angular speed of 7.7 rad/s about its center. Think the baton to be a uniform rod of length 0.63m and mass 0.54kg.
The drawing shows a triple jump on a checkerboard, starting at the center of square A and ending on the center of square B, What is the magnitude of the displacement of the colored checker during the triple jump
To fight a fire on the fourth floor of a building, firefighters want to use a hose of diameter 6.31cm to shoot 925 liters/minute of water to a height of 11m, What pressure must the water have inside the hose
A car moving at a constant speed of 7.5 m/s, moves 25 m at a 20 degree angle above horizontal. How much time does it take the car to accomplish this movement
The 2.0 kg, 20 cm diameter disk is spinning at 320 rpm. How much friction force must the brake apply to the rim to bring the disk to a halt in 2.0 s.
When a synchronous motor is running at synchronous speed, the damper windingproduces(A) damping torque.(B) eddy current torque.(C) torque aiding the developed torque.(D) no torque.
a 0.5 kg block of aluminum is heated to 200 degrees C. The block is then quickly placed in an air insulated tub of cold water at 0 degrees C and sealed. compute the final temperature of the water and block
A styrofoam ball of mass 0.120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspended
a person pulls a 10kg weight across a floor a distance x=2.0m by pulling on a rope with 50N directed 15 degrees above the horizontal. compute the work done by each one
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