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A force of magnitude 880.0N stretches a certain spring by 0.190m from its equilibrium position. What is the force constant of this spring? How much elastic potential energy is stored in the spring when it is stretched 0.400m from its equilibrium position.How much elastic potential energy is stored in the spring when it is compressed by 0.400m from its equilibrium position? How much work was done in stretching the spring by the original 0.190m ?
A stick is resting on a concrete step with 1/4 of its length hanging over the edge. what is the magnitude of the angular acceleration of the stick at the instant shown
A transparent rod 30.0 long is cut flat at one end and rounded to a hemispherical surface of radius 10.0 cm at the other end. What is its apparent depth when viewed from the curved end
A point charge with charge is held stationary at the origin. How much work is done by the electrostatic force on the moving point charge
A certain heat engine does 8.0 kJ of work and dissipates 9.00 kJ of waste heat in a cyclical process. What was the heat input to this engine
If vector "B" is added to vector C =3.0i + 4.0J, the result is a vector in the positive direction of the y axis, with a magnitude equal to that of vector "C". What is the magnitude of vector "B".
Consider a thin rod of mass 3.7 kg, length 1.8m and uniform density. The rod is pivoted at one end on a frictionless horizontal pin
A swimmer bounces straight up from a diving board and falls feet first into a pool. What is her velocity when her feet hit the water
A 44.20 cm diameter disk rotates with a constant angular acceleration of 2.84 rad/s2. It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3° with the positive x-axis at t..
A 200 kg bucket of cement is accelerated upward by a force of 2200 N. the acceleration continues for 5 s. the power needed at the end of this period is
Two circular coils are concentric and lie in the same plane. The inner coil contains 92 turns of wire, has a radius of 0.018 m, and carries a current of 5.5 A. The outer coil contains 110 turns and has a radius of 0.032 m. What must be the magnitude ..
A house has a floor area of 113 m2 and an outside wall that has an area of 26 m2. The earth's magnetic field here has a horizontal component of 3.0 multiplied by 10-5 T that points due north and the vertical component of 4.9 multiplied by 10-5 T p..
The image is located 3.5 cm from the mirror. (a) If the image is 4X larger than the object. Calculate the distance between the object and the mirror. (b) Calculate the focal length of the mirror.
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