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Problem:
A spring of constant k = 100 N/m changs at its natural length from a fixed stand. A mass of 3 kg is hung on the end of the spring, and slowly let down until the spring and mass hang at their new equilibrium position.
Find the value of the quantity x in the figure above.
If a four-engine jet accelerates down the runway at 2 m/s2 and one of the jet engines fails, explain how much acceleration will the other three produce?
a 32 g block of ice is cooled to -75 degreescelsius. it is added to 511 g of water in a 71 g copper calorimeter at a
Fuel systems of modern cars are designed so thermal expansion of gasoline doesn't result in wasteful and polluting fuel spills. How large an expansion tank do you specify
Determine maximum height,h, that can reached after the collision. Cart A on left has a mass of 3.0 kg and velocity = 8.5m/s. Cart B on right has mass of 2.0 kg and unknown velocity. CartA will crash into Cart B up the hill.
In a typical living cell, the electric potential inside thecell is 0.070 V lower than the electric potential outside the cell. The thicknes of the cell membrane is 010 μm. What is the magnitude and direction of the electric fieldwithin the cell m..
Calculate the power spectrum of a square pulse with amplitude, A and length t. Plot the power spectrum, showing several zero-crossings. Demonstrate that the bandwidth (in frequency) in inversely proportional to t.
An ultracentrifuge accelerates from rest to 100,000 rpm in 3.00 minute. Find the radial acceleration of this point at full rpm
The Earth's magnetic field is essentially that of a magnetic dipole. find what will it be 12,600 kilometers above the surface at the North Pole
a 0.072m x 0.045 m steel beam of length 3.7m is heated from 293kelvin to 372kelvin. what is the new length of the beam?
Cliff and Will are carrying a uniform 2.0m board of mass 74kg. Will is supporting the board at the end while cliff is 0.6m from the other end, Find the normal forces exerted by Cliff and Will
A 15.0 kg stone slides down a snow-covered hill (the figure ), leaving point A with a speed of 12.0 m/s. There is no friction on the hill between points A and B, How far will the stone compress the spring
A light ray travels through medium #1 and crosses a boundary into water at an indicent angle of 21.8 degrees. what is the energy of one photon of this light
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