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A small sphere of charge q1 = 0.848 µC hangs from the end of a spring as in figure (a). When another small sphere of charge q2 = ?0.594 µC is held beneath the first sphere as in figure (b), the spring stretches by d = 3.18 cm from its original length and reaches a new equilibrium position with a separation between the charges of r = 4.85 cm. What is the force constant of the spring?
What is your displacement after running 2.8 {rm km} on Strawberry Fields, 1.4 {rm km} on Penny Lane, and 4.3 {rm km} on Abbey Road.
The earth orbits the sun once per year at the distance of 1.50 x 1011 m. How long (in earth days) does it take for Venus to make one orbit
An artillery shell is fired with initial velocity of 300 m/s at 55 angles above the horizontal. to clear an avalanche, it explodes on a mountainside 42s after firing. What is the x and y coordinates of the shell where it explodes, relative to its ..
A uniform disk with a mass of 840 g and radius 17.0 cm is rotating on frictionless bearings with an rotational speed of 18.0 Hz, What is the new rotational speed of the disk
A blob of iron sinks form the surface of earth to the center. Assume the blob does not transfer any energy to its surroundings. Assume the density of earth is uniform.
A rocket cruising past earth at 0.800c shoots a bullet out the back door, opposite the rocket's motion, at 0.900c relative to the rocket. What is the bullet's speed relative to the earth
A 3.10-m-long, 340kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction
In the figure below, the converging lens' focal length is 14.4 cm, d = 13.6 cm, and the diverging lens' focal length is -14.1 cm. Where is the image formed by the converging lens,
A solenoid inductor has an emf of 0.90V when the current through it changes at the rate 10.0 A/s. How many turns does the inductor have
A car of mass 2200 kg collides with a truck of mass 4800 kg, and just after the collision the car and truck slide along, stuck together. The car's velocity just before the collision was m/s, and the truck's velocity just before the collision was..
Consider the glass prism in the figure below, for which ? = 22° and ? = 68°. What is the smallest angle ?1 for which a laser beam will undergo total internal reflection
Chuck Norris's razor blade has an output force of 2500 lbs is used to shear his burley face. The shaving blade has the 0.35 inch thick blade with a 55 degree slope.
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