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Consider the work done by gravity and a spring:
a) Discover an expression for the work done by gravity on a mass m as it is raised a distance h vertically.
b) A spring with constant k is horizontal (ignore gravity) and starts out compressed a distance x. Discover work done by the spring on a mass m when the spring is released and moves back to its equilibrium position (x=0)
c) Discover the work done by the spring on the mass m if the mass starts out at the springs equilibrium (x=0) and compresses the spring a distance of x
d) Discover the work done by the spring on the mass m if the mass starts out at the spring equilibrium (x=0) and compresses the spring a distance x
a 5600 kg mass car is taking a turn at 72 ms. if the frictional force here is 44000n what is the radius of curvature
a projectile is fired with an initial speed of 34.0 ms at an angle of 35.0circ above the horizontal. the object hits
An aluminum wire with a diameter of 0.105 mm has a uniform electric field of 0.295 V/m imposed along its entire length, What is the drift speed of the conduction electrons
A 5 m x 12 m swimming pool slopes linearly from a 1.20 m depth at one end to a 3.40 m depth at the other. What is the mass of water in pool.
In Rutherford's famous scattering experiment, α particles (helium nuclei) were fired at 2.0 x 10^7 m/s over a large distance toward a gold nucleus with charge +79e. How close does the α particle get before turning around?
Linear Spring has a length of 180 mm the tension in it is 170 N. For a length of 160 mm The compressive force in it is 120 N. Determine is the stiffness of the spring? In N/m and lb ft. Determine is the unscratched length of the spring? In m and ft.
question1the force vector a has a magnitude of 91.0 newtonrsquos and points due east. the force vector b has magnitude
A solid sphere of uniform density starts from rest and rolls without slipping a distance of d = 4 m down a q = 28° incline. The sphere has a mass M = 5.2 kg and a radius R = 0.28 m. What is the magnitude of the frictional force on the sphere?
The person in Figure P5.35 weighs 165 lb. As seen from the front, each light crutch makes an angle of 24.0° with the vertical. Determine the magnitude of the compression force in each crutch
Two boats start together and race across a 72 km wide lake and back. Boat A goes acrossat 72 km/h and returnsat 72 km/h. Boat B goesacross at 36 km/h, and itscrew, realizing how far behind it is getting, returnsat 108 km/h.
A 84 gram arrow is fired from a bow whose string exerts an average force of 115 Newton on the arrow over a distance of 73 centimeter. Find the speed of the arrow as it leaves the bow
A loose sun roof panel on an automobile is resting in place and is air-tight, but is unattached to the car because it is being repaired. The driver forgets, and drives onto the highway with the windows closed.
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