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A 5.00 kg wood cube rests on a frictionless horizontal table. It has two springs attached to it on opposite faces. The spring on the left has a spring constant of 55.0 N/m, and the spring on the right has a spring constant of 111 N/m. Both springs are initially in their equilibrium positions (neither compressed nor stretched). The block is moved toward the left 10.0 cm, compressing the left spring and stretching the right spring. (a) Calculate the resulting net force on the block. (b) Calculate the the initial acceleration of the block when it is released. Use the convention that to the right is positive and to the left is negative.
A 28.0 kg block is connected to an empty 2.00 kg bucket by a cord over a frictionless pulley, Calculate the mass of the sand added to the bucket.
You are approaching a stationary sound of 1000Hz at 35m/s. What is the change in frequency of the sound as you approach
Find the final velocity of the two balls if the ball with velocity v2i = -21.2 cm/s has a mass equal to half that of the ball with initial velocity v1i = +27.6 cm/s
If a toaster is plugged into a source of alternating voltage with an rms value of 66.2 V, find the resistance of the toaster's heating element
Consider an RC circuit in which the capacitor is beingcharged by a battery connected in the circuit. what percentage of the final charge is present on the capacitor
An interior decorator install an aquarium that is 0.50 m wide, 2.00 deep, and 4.00 m long. what is the percent uncertainty in the volume
A passenger train is travelling at 31 m/s when the engineer sees a freight train 351 m ahead of his train travelling in the same direction on the same track. The freight train is moving at a speed of 5.6 m/s.
In the Bohr model of the hydrogen atom, the speed of the electron is approximately 2.06 × 106 m/s, Find the centripetal acceleration of the electron
A loop of area 0.25 m2 is in a uniform 0.02 T magnetic field. What angle does the normal to the plane of the loop make
A playground merry-go-round has a radius of 4.20 and a moment of inertia of 255, What is the work done by the child
A worker pushed a 65.0-kg block 10.0 m along a level floor at a constant speed with a force directed 39.0° below the horizontal. how much work did the worker do on the block
A block of mass m=5kg is pulled up a frictionless ramp (theta=30degrees) at constant speed v=2m/s by an unknown tension force T. At what rate is the tension force doing work
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