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A force of magnitude 610.0 N stretches a certain spring by 0.230 N 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 0.300 m from its equilibrium position.
How much elastic potential energy is stored in the spring when it is compressed by 0.300 m from its equilibrium position?
A surfer is zipping northeast across the river with a velocity of 10 m/s relative to the water. what is the true velocity of the surfer
You land on a spherical asteroid and take a walk for 3km. You notice that the stars ahead of you rise 36 degrees as you walk
An ideal monatomic gas initially has temperature Ti and pressure pi. It is to expand from volume Vi to volume Vf. If the expansion is isothermal, what are the final pressure and the work done by the gas
A 2.60-N metal bar, 1.50 m long and having a resistance of 10.0 ohms, rests horizontally on conducting wires connecting it to the circuit, What is the acceleration of the bar just after the switch S is closed
a -58 nC charge is distributed uniformly along the x-axis from x = -1.3 m to x = 3.4 m. Consider a point at y = 2.2 m on the y-axis. a) what is the x-component of the electric field at the point
You are given a charged metal sphere mounted to an insulating post. You have two other identical but uncharged spheres on their own similar insulating posts. Explain the procedure to give the two uncharged spheres each a roughly equal but opposite..
It takes an elevator 3.4 minutes to raise a vehicle with a mass of 366 kg from the floor to a height of 7 meters. What size (power) motor (in watts) does it take to do the job
A total charge of 14 mC passes through a cross-sectional area of a nichrome wire in 2.8 s. If the number of charges that pass through the cross-sectional area during the given time interval doubles, what is the resulting current
A mass m is attached to an ideal cord of length L (figure at left). What is the tension in the cord at that moment
You note that your prescription for new eyeglasses is -3.75 D. What will their focal length be
Find the magnification of the heater element given that the mirror has a radius curvature of 46 cm and produces an image of the coils 2.6m away from the mirror
A person rides a bike 6.5 miles in 26 min up a mountain, climbing 1900 vertical feet. how much work did his muscles do
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