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The Potential Energy of an object attached to a spring whose elastic constant is K is given by the formula. The quantity x is the displacement from the equilibrium condition. Assume that K = 30 N/m and x = 0.7 m: Determine the PE.
calculate the ground state energy and corresponding speed of a particle of mass 1.0 g in a box of length l10.0 cm
A certain laser outputs pure blue light (photon energy 3.1 eV) with power 400 milliwatts (0.4watts). How many photons per second does this laser emit
A car starts from rest at a stop sign. It accelerates at 4.0 m/s2 for 6 seconds, coasts for 3 s, How far apart are the stop signs
An astronomical telescope is being used to examine a relatively close object that is only 146.00 meter away from the objective of the telescope. obtain the angular magnification of this telescope
a box full of books rests on a wooden floor. the normal force the floor exerts on the box is 235 n. a you push
A wire is made by attaching two segments together, end to end. One segment is made of aluminum and the other is steel. Find what fraction of the length is aluminum
A radio receiver can detect signals with electric field amplitudes as small as 210?V/m. What is the intensity of the smallest detectable signal
in astronomy it is common to expose a photographic plate to a particular portion of the night sky for quite some time
how large is the image of the sun on film used in a camera with a 27 mm focal-length lens? the sun has diameter 1.4 x
The plates of a capacitor are separated by 0.0050 m. The capacitor is charged by a potential difference of 5.0 V and then disconnected. Now you separate the plates to a distance of 0.015 m. What is the new potential difference between the plates?
assume you have a perfectly isolated closed system under reversible and isothermal conditions where pv 0.8
question a car is moving on a at horizontal circular track of radius 120 m. the speed of the car is constant 15ms . the
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