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The spring potential energy is given by U = 1/2 kx^2.
A) Use calculus to get the equation for a spring's force.
B) The potential energy due to gravity is mgy. A 0.400 kg mass is placed on a spring with a spring constant of 520 N/m. The spring is squeezed downward 0.650 m from equilibrium and let go. What is the kinetic energy when the spring reaches equilibrium?
C) What is the speed of the mass when it rises to the spring's equilibrium point?
a firefighter directs a horizontal stream of water toward a fire at an angle of 40deg measured from the horizontal.
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A toy cork gun contains a spring whose spring constant is 10.02 N/m. The spring is compressed 5.0 cm and then used to propel a 6.00 g cork. The cork, however, sticks to the spring for 1 cm beyond its unstretched length before separation occurs. The m..
A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 15.0 m/s due north relative to the water. Illustrate what is the velocity of the boat relative to shore?
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If you input the function x[n]=0,1,0,1,0,1,0,1,0,1 into a digital filter with impulse response h[m]=1,0,1, what is the output function y[n] of the filter
A .075 Kg toy rocket is launched straight up from the ground at 19 m/s. Calculate the power of gravity force during the first 10s
A clean copper surface is exposed to light of wavelength 275 nm. What is the maximum speed of the photoelectrons emitted from this surface? Use the table below copper=4.7eV.
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