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A 70.0 kg person leaps from a bridge in West Virgina with a bungee cord attached and falls 120 meters. If the bungee cord stretches 2.5 meters during the stopping process, what's its force constant (k)?
An object is suspended from a mass balance. When the object is surrounded by air, Evaluate what is the density of the object
A small device based on the confinement of a proton in a 1 dimensional box is found to have a ground (i.e. n = 1) level energy of 16.9 keV. Determine the width of the box
A turtle ambles lesisurely- as turtles tend to do- when it moves from a location with position vector r1x = 1.07 m, find the magnitude of the turtle's average velocity
A truck can move up a road having a grade of 1.0-ft rise every 50-ft with a speed of 15 mi/h. The resisting force is equal to one twenty-fifth the weight of the truck. If its power output is the same, how fast will the same truck move down the hill? ..
A 50.0 kg object slides down a 30o angle slope from rest at a height of 12.0 m. What is the object's speed at the bottom of the slope
A 40 cm length of wire has a mass of6.0 g. It is stretched between two fixed supports and is under atension of 185 N. What is the fundamental frequency of this wire
If you have 1.96 * 10^9 KWH and the value of energy is $0.10 per KWh, what is the value of electrical energy produced
a cannon sends a projectile towards a target a distance1420m away. The initial velocity makes an angle 21 degrees with thehorizontal. the target is hit. How high is the highest point of trajectory
Assuming that the disks form a circular parallel plate capacitor and the electron are initially at rest when they pass through the first disk. A) determine the acceleration that the electrons undergo and B) the speed of the electrons as they pass ..
A 1.0-kg block is pushed up a rough 22o inclined plane with a force of 7.0 N acting parallel to the incline. The acceleration of the block is 1.4 m/s2 up the incline. Decide the magnitude of the force of friction acting on the block.
A thin spherical copper shell of radius 9.5 centimeter carries an excess charge of -4.2 nC. Find how many excess electrons are on the outer surface of the shell
question1assume we added some constant to the total energy of the system. for instance say that instead of the
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