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A package of mass 5 kg sits at the equator of an airless asteroid of mass 5.0 x 1020 kg and radius 2.9 x 105 m. We want to launch the package in such a way that it will never come back, and when it is very far from the asteroid it will be traveling with speed 241 m/s. We have a large and powerful spring whose stiffness is 2.3 105 N/m. How much must we compress the spring?
An 875.0-kg compact car speeds up from 22.0 m/s to 44.0 m/s while passing another car. How much work is done on the car to increase its speed
A Ferris wheel is moving at an initial angular velocity of 1.0 rev/53 s. If the operator then brings it to a stop in 2.8 min, what is the angular acceleration of the Ferris wheel
A 0.430 kg block is attached to a horizontal spring that is at its equilibrium lenght, and whose force constant is 20.0 N/m. The block rest on a frictionless surface. A 0.0500 kg wad of putty is thrown horizontally at the block, hitting it with a ..
A fireman, 53.4 m away from a burning building, directs a stream jet of water from a ground level fire hose at an angle of 30 above the horizontal. at what height will the stream of water strike the building
Find the magnetic flux through a circular loop 4.6 cm in diameter oriented with the loop normal at 58 degrees to a uniform 80 mT magnetic field
A -3.41 nC point charge is located at the center of a conducting spherical shell. find the surface charge density on the outside surface of the shell
A centrifuge in a medical laboratory rotates at an angular speed of 3400 rev/min, Find the constant angular acceleration of the centrifuge
Consider three equally spaced and equal-intensity coherentsources of light. Determine the postions of maxima and minima
Give four examples (two of each type) of optical devices which are best understood using either Geometric Optics or Physical Optics. Justify your examples.
A starship voyages to a distant planet 10 ly away. The explorers stay 4.00yr , return at the same speed, What is the speed of the starship
Two thin beams are joined end-to-end to make a single object. The left beam is 11.9 kg and 1.00 m long and the right one is 41.1 kg and 2.00 m long. What is the gravitational torque on the objects about an axis through its left end
A classroom window made of glass is 1cm thick. The window is 2m square . If the thermal conductivity of glass k = 0.96 w/(mK) and the temperature is 21C inside and 32C outside, find the head flux and the temperature distribution along the thicknes..
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