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Solve the each part of given problem:
Problem: A block of mass 2.5 kg is attached to a horizontal spring that has a force constant of 1.40 x 103 N/m, and is free to slide on a frictionless surface as shown. The spring is compressed to xi = -9.5 cm by pushing on the block, and then the block is released.
Part A: Find the work done by initially compressing the spring?
Part B: Find the kinetic energy of the block when it reaches x=0?
Part C: Find the speed of the block at x=0?
I want help to find the work done by initially compressing the spring.
In inertial frame S, a red light and a blue light are separated by a distance ?x = 2.45 km, with the red light at the larger value of x. What is the distance between the two flashes
Two window washers, Sally and Tom, are on a 3.00 m long 345 N uniform scaffold supported by two cables attached to its ends. Sally weighs 750N and stands 1.00 m from the left end. Two meters from the left end is the 500 N washing equipment.
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there are four charges each with a magnitude of 1.88 microc. two are positive and two are negative. the charges are
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