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A horizontal spring-mass system oscillates on a frictionless table. If the ratio of the mass to the spring constant is 0.063 kg⋅m/N, and the maximum speed of the mass was measured to be 21.72 m/s, find the maximum extension of the spring.
Creation of wave Mechanics
A 190 kg block is pulled at a constant speed of 4.4 m/s across a horizontal floor by an applied force of 138 N directed 37° above the horizontal. Illustrate what is the rate at which the force does work on the block?
A record on a turn table rotates with initial speed 3.5 rad/s making three turns before stopping.
A hydraulic lift consists of two pistons that connect to each other by an incompressible fluid. If one piston has an area of 0.49 m^2 and the other an area of 6.2m^2, how big a mass can be raised by a force of 220N exerted on the smaller piston.
a 106 kg object moves in a horizontal straight line with an initial speed of 58 ms. if it is stopped along that line
An RL circuit consists of a switch, an emf source Eo, a 4 kΩ resistor, and a 5 H inductor. If the potential across resistor is 16 V 5 ms after switch is closed, find out the source emf, Eo.
The closed-loop transfer function of a unity-feedback control system is GCL(s) = 1/(s2 - 1). Evaluate whether it is possible or not to stabilize this system.
You have been called to testify as an expert witness in a trial involving an automobile accident, determine that the coefficient of kinetic friction between the wheels and the pavement at the time of the accident was 0.59
A proton moving with a velocity 3×105 ms-1 enters a magnetic field of 0.3 T, at an angle of 30? with the field. What will the radius of curvature of its path be (e/m for proton ˜ 108 C kg-1 )?
A 1000kg car coasting at 72.0km/h on a level frictionless road comes to a 15 degree incline. Calculate how far the car will travel before coming to rest
A rubber rod is rubbed with fur. The fur is then quickly brought near the bulb of an uncharged electroscope. find the sign of the charge on the leaves of the electroscope
A neutral (uncharged) capacitor has a charge of -3.00C moved from one of the plates to another in a time of 5.00 sec, leaving +3.00C on 1st plate. The +charges don't move, only the electrons. What was the average current?
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