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A particular spring has a force constant of 2.2×103N/m .
1. How much mass would have to be suspended from vertical spring to stretch it the first 5.5cm?
2. How much more mass would have to be suspended from the vertical spring to stretch it additional 2.0cm?
If the patch is 78 meters wide and the average force of air resistance on the skier is 179 newtons, explain how fast is she going after crossing the patch?
For the infinite square well problem an electron spends 40% of its time in the n=3 state and 60% of its time in the n=5 state. What is the average energy of the electron
Suppose a planet is discovered orbiting a distant star with 11 times the mass of the Earth and 1/11 its radius. How does the escape speed on this planet compare with that of the Earth
An ac voltage source is connected in series with a1.4-?F capacitor and a 690-? resistor. Using a digital ac voltmeter, the amplitude of the voltage source is measured to be 4.0?V rms, Determine the frequency of the ac voltage source
A 12V battery is conected to an electricstarter motor. The current through the motor is 223A. How much power does the motor dissipate
assume that a particular persons skin is found to have a resistance of 1 x 105o when dry and 1400o when wet. how much
A hollow non-conductiong sphere has a uniform charge density ?. The inner and outer radius of the sphere are r1 and r2m respectively. What is the total charge of this sphere
the resistance of a very fine tungsten wire with a 10 micro m x 10micro m square cross section is 2978 ohm how long is
An isolated conductor of arbitrary shape has a net charge of +1.20×10-5 C. Inside the conductor is a cavity within which is a point charge q = +3.60×10-6 C. What is the charge on the cavity wall?
A 430 gram rock is whirled on the end of a string 45 cm long which will break under a tension of 22 N. What is the highest speed the rock can reach before the string breaks? (Neglect gravity.)
Describe how magnetic dipoles of a system of two-state paramagnet behave in a magnetic field and explain why. Describe how the heat capacity, energy, and magnetization of a system of two-state paramagnet depend on temperature.
A charged particle moves through a velocity selector at a constant speed in a straight line. The electric field of the velocity selector is 4290 N/C, Find the charge-to-mass ratio of the particle
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