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Chris spends his spare time running a bungee jumping service off the Henley Street bridge. He has a 123 ft long bungee cord (unstretched) that has a spring stiffness of 34 lb/ft. To test his bungee, he ties the bungee cord to the bridge railing, ties the other end to an unnamed Estabrook professor weighing 130 pounds, and then gently nudges the professor off of the bridge. Assuming he hasn't hit the water, how much has the bungee chord stretched when the professor is at the bottom of the jump? (ft)
compute the tension in a string that whirls a 2kg toy in a horizontal circle of radius 2.5m when it moves at 3m/s
A 6.70-µC particle moves through a region of space where an electric field of magnitude 1250 N/C points in the positive x direction, find the magnitude and direction of the particle's velocity
A black hole is roughly defined as a an object dense enough that the speed needed for launching things from its surface must be the speed of light or greater. 3.00x108m/s. Determine the maximum radius of the earth
Blue light of frequency 6.0 1014 Hz falls on the surface of potassium, which has a work function of 2.26 eV. Find the maximum kinetic energy of emitted electrons
Write six pages paper about Bassel equation illustrating that with filter examples.
To celebrate a victory, a pitcher throws her glove straight upward with an initial speed of 6.5 m/s, How long does it take for the glove to return to the pitcher
Consider an atom of sulfur (chemical symbol S), How many electrons does a neutral atom of sulfur have
A disk of radius R = 11 cm is pulled along a frictionless surface with a force of F = 16 N by a string wrapped around the edge. what is the torque exerted about the center of the disk
three forces are applied to a bracket as shown. determine the range of values of alpha for which the magnitude of the resultant forces acting on a is less than 600n
The Trans-Alaskan pipeline is 1300 km long, reaching from Prudhoe Bay to the port of Valdez, and is subject to temperatures ranging from -73°C to +35°C. How much does the steel (average coefficent of linear expansion 11 x 10-6 (°C)-1) pipeline expand..
Drag racing combines the reflexes of the driver with a powerful engine to propel a specially designed car across a quarter mile as quickly as possible. What is the time for the car to go the quarter-mile
A 120-V motor has mechanical power output of 3.60 hp. It is 87.0% efficient in converting power that it takes in by electrical transmission into mechanical power. Find the current in the motor
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