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You are setting up two standing string waves. You have a length of uniform piano wire that is 3.0 m long and has a mass of 150 g. You cut this into two lengths, one of 1.0 m and the other of 2.0 m, and place each length under tension. What should be the ratio of tensions (expressed as short to long) so that their fundimental frequencies are the same?
Find the minimum compression of the spring needed to keep the block from falling, given that the coefficient of static friction between the block and the wall is 0.50
A 72 kg man is riding on a 40 kg cart traveling at a speed of 2.5 m/s. What is the resulting change in the cart's speed, including sign
A map suggests that Atlanta is 730 miles in a direction 5.00° north of east from Dallas. Modeling the Earth as flat, use this information to find the displacement from Dallas to Chicago
A 1.50 kg mass is hung from a vertical spring with k=30.0 N/M, what is the magnitude and direction of the tensile force acting on the spring
question1a small immersion heater can be used to heat a cup of water for coffee or tea. if the heater can heat 180ml
A mass m = 3 kg is hanging from an ideal string which is passed over a fixed, frictionless pulley and then is attached to the upper end of a vertical spring whose lower end is fixed to the floor. What is the maximum stretch of the spring
An electric motor rotating a workshop grinding wheel at a rate of 93 rev/min is switched off. Assume the wheel has the constant negative angular acceleration of magnitude 2rad/s2.
find the work done by the field on the electron. What is the change in potential energy associated with the electron.
The peak value of an alternating current in a 1480 W device is 4.4 A. What is the rms voltage across it
The left plate of a parallel plate capacitor carries a positive charge Q, and the right plate carries a negative charge -Q. Calculate the energy stored in the capacitor
If the initial temperature of the horseshoe is 600?C, and initial temperature of the water is 40?C, what is the equilibrium temperature of the system? Suppose no heat is exchanged with the surroundings.
An football is punted at 25.0 m/s at an angle of 30.0 degree above the horizon. What is the velocity vector of the ball when it is 5.00 m above the level ground
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