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At a certain point, when a spring is stretched near its elastic limit, the spring force satis?es the equation F = -α x + β x3, where α = 12 N/m and β = 6000 N/m3. Calculate the work done by the spring when it is stretched from its equilibrium position to 0.056m past its equilibrium. Answer in units of mJ.
A horizontal spring is lying on a frictionless surface. One end ofthe spring is attached to a wall whle the other end is connected toa movable object. The spring and object are compressed by0.055 m, released from rest, andsubsequently oscillate ba..
A bomb is designed to explode 2.00 s after it is armed. The bomb is launched from earth and accelerated to an unknown final speed. What is the final speed of the bomb just before it explodes
a 5-microf capacitor is charged to 30 v and is then connected across a 10-microh inductor. the maximum value of the
question1a bridge truss extends 200m across a river. the structure is free to slide horizontally to permit thermal
Two charges q1 = ?3.20 nC and q2 = +8.90 nC are at a distance of 1.20 µm from each other, What is the kinetic energy of the charge q2 when it is 0.340 µm from q1
An owl is chasing a squirrel and is using echolocation (the reflection of sound) to aid in the hunt. If the squirrel is 40.5 m from the owl, how long does it take sound to travel from the owl to the squirrel and then back to the owl? (Use 343m/s a..
Suppose that 3.00 g of hydrogen is separated into electrons and protons. What is the resulting compressional force on the Earth
In a certain region, the earth's magnetic field has a magnitude of 4.7 × 10-5 T and is directed north at an angle of 69° below the horizontal, Determine the bullet's electric charge
The current in an electro magnet connected to a 240 V line is 14.5A.At what rate must cooling water pass over the coils if the water temperature is to raise by no more than 7.50C ?
A current of 10.0 mA is maintained in a single circular loop with a circumferenceof 1.60 m. A magnetic fieldof0.550 T is directed parallel tothe plane of the loop. What is the magnitude of the torque exerted by the magnetic field on the loop?
Two light bulbs labeled 50 W and 100 W, find the actual power consumed by the brighter bulb
Shaving/makeup mirrors typically have one flat and one concave (magnifying) surface. compute the focal length of the mirror
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