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Consider a non-ideal springthat exerts a force F(x)=-15.0 N/m x +3.00 N/m^2 x^2 , when it isdisplaced a distance x from its equilibrium length. The displacement x is positive if the spring is stretched and negative if the spring is compressed.a) What force does the spring exert when stretched 5.00 cm?b) How much work is required tostretch the spring 5.00 cm from equilibrium?c) How much work is required tocompress the spring from equilibrium by 5.00cm?d) The spring is used in aspring gun to project a 10.0 g ping-pong ball. In the gun,the spring is compressed by 5.00 cmbefore the gun is fired. How fast is the ball traveling after the gun is fired?
rotates to provide an "artificial gravity" of 3.10 m/s2 for persons who walk around on the inner wall of the outer rim. Find out the rate of the wheel's rotation in revolutions per minute that will produce this effect.
While on a one-hour trip, a small boat travels 32 km north and then travels 45 km east. What is the magnitude of the boat's average velocity for the one-hour trip
the bureau of land management wants you to present a plan for a self-contained city. the population is 1000. your job
A force P pulls on a crate of mass m that is in contact with a horizontal rough surface. Which statement best describes the motion of the crate
A copper rod 25 cm long having a cross-sectional area of 7.5 cm2 is used to connect a boiler maintained at 100 oC to a large block of ice at 0 oC. What is the rate of change in entropy of the ice
An insulated Thermos contains 123 cm3 of hot coffee at 73 °C. You put a 12.0 g ice cube at its melting point to cool coffee. By how various degrees has your coffee cooled one time the ice has melted and equilibrium is reached? Treat the coffee as tho..
a magnetic field is oriented at an angle of 39? to the normal of a rectangular area 4.8cm by 7.7cm if the magnetic flux
Does the gravitational potential energy at the initial and final points depend upon the location of the origin of the coordinate system? Does the change in gravitational potential energy dependupon the location of the origin of the coordinate system..
A water balloon is launched at a building 24 m away with an initial velocity of 18 m/s at an angle of 50 degrees above horizontal, At what height will balloon strike building
A train (an engine and four cars) is accelerating at 1.60 m/s^2 . The mass of each car is 3.60 x 10^4 kg, What is the force of the first car on the second car
A 92-kg skier is sliding down a ski slope that makes an angle of 30 degrees above the horizontal direction. what is the acceleration of the skier
In 1656, the Burgmeister (mayor) of the town of Magdeburg, Germany, Otto Von Guericke, carried out a dramatic demonstration of the effect resulting from evacuating air from a container. what is the minimum number of horses required
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