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Problem:
A spring of constant k = 100 N/m hangs at its natural length from a fixed stand. A mass of 3 kg is hung on the end of the spring, and slowly let down until the spring and mass hang at their new equilibrium position.
The spring is now pulled down an additional distance x and released from rest. What is the period of oscillation for the mass?
The electric potential at the center of a square is 4 V when a charge of +Q is located at one of the square's corners. What is the electric potential at the square's center when identical charges of -Q are placed at the other three corners of the squ..
A child and sled with a combined mass of 49.0 kg slide down a frictionless slope. what is the height of the hill
A piece of luggage is being loaded onto an airplane by way of an inclined conveyor belt. calculate the work done on the bag by the conveyor belt
In open heart surgery a much smaller amount of energy will defibrillate the heart. What voltage is applied to the 9.00 µF capacitor of a heart defibrillator that stores 45.0 J of energy
a coil of nichrome wire is 31.0 m long. the wire has a diameter of 0.360 mm and is at 20.0degc. a if it carries a
A projectile is launched with a launch angle of 65° with respect to the horizontal direction and with initial speed 14 m/s. what launch angle produces the longest time of flight
After having collected samples along the shore all day long, a marine biologist walks back to her campsite, 1.69 km away. Her dog runs ahead, at twice the speed, reaches the campground and turns around until it meets her again. Then, the dog proce..
Here is a box on whose surfaces the electric field is measured to be horizontal and to the right, Calculate the electric flux through every face of the box, Calculate the total flux through the box
An unknown particle in an accelerator moving at a speed of 2.0 x108 m/s has a measured relativistic mass of 3.00kg. What must its rest mass be
As a way of determining the inductance of a coil used in a research project, a student first connects the coil to a 15.0 V battery and measures a current of 0.660 A. The student then connects the coil to a 24.0V (rms), 60.0 Hz generator and measures ..
Assume that a mountain climber uses oxygen and does work at twice the rate for climbing 116 stairs/mm (1.96 L/min, 685 W), because of low air temperature and winds. Calculate how many liters of oxygen a climber would need for 6.5 h of climbing. (N..
Your opponent, in a desperate attempt to return your wicked serve, makes a high lob of the tennis ball that causes it to land out of bounds on the asphalt course behind you. It then bounces so that it just barely clears a 3.50 m wall that is 2.22 ..
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