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A 100.0 kg bungee jumper steps off a bridge with a light bungee cord tied to her and to the bridge. The unstretched length of the cord is 13.0 m. She reaches the bottom of her motion 38.0 m below the bridge before bouncing back. Her motion can be separated into an 13.0 m free-fall and a 25.0 m section of simple harmonic oscillation. (a) For what time interval is she in free-fall? 1 s (b) Use the principle of conservation of energy to find the spring constant of the bungee cord. 2 Your response differs from the correct answer by orders of magnitude. N/m (c) What is the location of the equilibrium point where the spring force balances the gravitational force acting on the jumper? Note that this point is taken as the origin in our mathematical description of simple harmonic oscillation. 3 m below the bridge (d) What is the angular frequency of the oscillation? 4 rad/s (e) What time interval is required for the cord to stretch by 25.0 m? 5 s (f) What is the total time interval for the entire 38.0 m drop? 6 s
The three charged particles in the figure below are at the vertices of an isosceles triangle (where d = 3.80 cm). calculate the electric potential at point A, the midpoint of the base
With what velocity would they be separating after the collision.
A small moon of a giant planet has an orbital period of 1.43 days and an orbital radius of 4.69 multiply.gif 105 km. determine the mass of the planet
A lens for a 35mm- camera has a focal length given by = 51mm, What is the magnification of the image on the film
A container of volume 0.56 m3 contains 3.3 mol of argon gas at 30°C. Assuming that argon behaves as an ideal gas, find the total internal energy of this gas.
A satellite that weighs 4900 N on the launchpad travels around the earth's equator in a circular orbit with a period of 1.667 h. Calculate the magnitude of the earth's gravitational force on the satellite
A VW Beetle goes from 0 to 102 mi/h with an acceleration of +6.59 m/s2. A top-fuel dragster can go from 0 to 102 mi/h in 1.52 s. What is the acceleration (in m/s2) of the dragster
A car starts from rest and accelerates at a rate of 2m/s^2 until it reaches the speed fo 30m/s. find number of revolution each wheel completes up to this point
A sound source emits sounds of frequency 190 Hz that travel by still air at 340 m/s. The listener moves at 75 m/s relative to still air toward the stationary source. What is the wavelength of the sound between source and listener.
A car travels east at 77 km/h for 6.0 h. It then travels 40.0° east of north at 112 km/h for 6.0 h. What is the average velocity for the trip
Model the electromagnetic wave in a microwave oven as a plane traveling wave moving to the left, with an intensity of 26.3 kW/m2. An oven contains two cubical containers of small mass, each full of water.
In a single slit diffraction pattern the intensity of the maxima
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