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The work required to stretch a certain spring from anelongation of 4cm to 5cm is 30.5J. What is the work required to increase the elongation from 5cm to 6cm?
A 75-kg man is riding in a 75-kg cart at 1.0 m/s. He jumps off in such a way as to land on the ground with no horizontal velocity
An object is placed 40cm in front of a concave mirror whose radius of curvature is 30am. Determine the location of the image and the magnification
In a ballistics test, a 25 g bullet traveling horizontally at1200 m/s goes through a 25 cm thick 350 kg stationary target andemerges with a speed of 750 m/s. What average force does it exert on the target
A bird stands on a dc electric transmission line carrying 3200A. What is the potential difference between the bird's feet
As seen from the window of a space station, a 99.0 kg satellite sailing along at 9.4 m/s collides head-on with a small 286.0 kg asteroid, What is the final velocity of the asteroid
An unstretched elastic spring has a mass M = 3.75 kg and a length of l0 = 0.525 m. What is the elastic potential energy of the spring
Two electrons are fixed 2.00 centimeters apart. Another electron is shot from infinity and comes to rest midway between the two fixed electrons. Find the initial speed of the electron
An electron with a speed of 3.55·E5 m/s enters a uniform mangetic field of magnitude 0.0397 T at an angle of 34.5° to the magnetic field lines, Determine the radius of the helical path
Suppose you stir 1 kg of water until its temperatue raises by 1 degree C. How much work did you do on the water
A ceiling fan is turned on and a net torque of 1.6 N·m applied to the blades. What is the angular acceleration of the blades
Electrons with a speed of 1.6×10^6m/s pass through a double-slit apparatus. What speed must neutrons have to produce interference fringes with a fringe spacing of 1.6mm
A bizarre baton is created by taking four identical balls, each with mass 0.252 kg, and fixing them as before except that one of the rods has a length of 1.06 m, Calculate the moment of inertia of this baton
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