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A 195g oscillator has a speed of 124cm/s when its displacement is 3.50cm and 55.0cm/s when its displacement is 6.90cm what is the oscillators max speed?
You are holding a bulletin board weighing 9.10 N in place against a wall while your friend secures it to the wall. How large must this force be if the coefficient of static friction with the wall is 0.39
A tobagan with a mass of 15kg is being pulled with an applied force of 45N at an angle of 40 degrees to the horizontal. What is the acceleration if the force of friction opposing the motion is 28N.
You are pushing a refrigerator across the floor of your kitchen. You exert a horizontal force of 273 N for 7.2 s, What is the work done by friction
A thin layer of magnesium fluoride (n = 1.38) is used to coat a flint-glass lens (n = 1.61). What atleast thickness should the magnesium fluoride film have if the reflection of 669 nm light is to be suppressed? suppose that the light is incident a..
Estimate how much the density of water changes between surface water and deep ocean water on the OR coast, assuming that only temperature changes. Apply reasonable estimates (+- 2 degrees Celsius) for the surface and deep water temperature, using val..
A 60.0-kg runner expends 325 W of power while running a marathon. determine the volume of bodily fluid (assume it is water) lost per hour
A bowling ball weighing 71.2{\rm N} is attached to the ceiling by a 3.70{\rm m} rope. find the tension in the rope
A certain star is 9.80 light-years away. What is the distance traveled according to observers on the spacecraft
The skis have a thrust of 190 . Sam's speed at the bottom is 35.0 . Illustrate what is the coefficient of kinetic friction of his skis on snow?
A typical wall outlet voltage is 120 volts in the United States. Personal MP3 players require much smaller voltages, calculate the number of turns on the secondary coil of the adapter transformer
A 2.20-kg object attached to a spring moves without friction (b = 0) and is driven by an external force given by the expression F = 4.50sin(2*pi*t), Find the resonance angular frequency of the system
A block of mass m = 6.68 kg is attached to a spring which is resting on a horizontal frictionless table. What is the maximum speed of the block
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