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Two 140 kg lead spheres are suspended from 200 m-long massless cables. The tops of the cables have been carefully anchored exactly 3.0 m apart. By what distance (in meters) do the two spheres move closer?
A spring of k=12.00 N/m has a block of mass 11- kg attached to it on a frictionless table. If the block is pulled a distance 0.17m to the right and released from rest, how long would it take the block to return to its equilibrium position? Give yo..
In lab you find that a 1-kg rocksuspended above water wights 10 N. when the rock issuspended beneath the surface of the water , the scale reads8N.
A 0.15 kg baseball collides with a 1.0kg bat. The ball has a velocity of 40 m/s immediately prior to the collision. Estimate how fast the baseball is moving as it leaves the bat following the collision
A hot-air balloon is ascending at the rate of 10 m/s and is 97 m above the ground when a package is dropped over the side. With what speed does it hit the ground
1- draw a large circle. now place the major surface pressure and wind belts of the world at their appropriate
the potential difference between the accelerating plates of a tv set is about 20 kv. if the distance between the plates
A fish is able to jump vertically out of the water with a speed of 5.6 m/s. How much time in seconds does it take for the fish topass a point 0.6 m above the water on the way down?
A woman with mass 55.0kg is standing on the rim of a large disk that is rotating at 0.470rev/s about an axis perpendicular to it through its center. Calculate the magnitude of the total angular momentum of the woman-plus-disk system
in a scientific test conducted in arizona a special cannon called harp shot a projectile straight up to an altitude of
A stone was thrown upward with an initial speed of 10m/s from theroof of a building and strikes the ground in 6s (no air resistance) How tall is the building? How high does the ball go in respect to the roof?
A 1.5kg- block of ice is initially at a temperature of -7.0C a)If 2.6×10^5J of heat are added to the ice, Find the amount of ice, if any, that remains
A 500-g mass hangs from a 45.0-cm-long string that is fixed at the top. The mass is pulled slightly aside and allowed to swing back and forth as a pendulum. What is the frequency (in Hz) of the pendulum
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