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A beam of accelerated protons from the Large Hadron Collider can be used to "spray paint" an insulator with protons. Calculate the number of protons needed to paint the cover of your textbook with a charge density of 3 x 10-6 C/m2. [If you use an online textbook, substitute the textbook by the area of your computer screen.]
An energy storage system based on a flywheel (a rotating disk) can store a maximum of 3.0 MJ, What is the moment of inertia of the flywheel
q1. a roller-coaster car speeds down a hill past point a where r1 10.0 m and then rolls up a hill past point b where
A pair of hedge trimmers are 45 cm long from the pivot to the end of the handles. If the person applies of a force of 15 N on each handle, how much force is applied to the branch
during takeoff an airplanes angle of ascent is 18 degrees and its speed is 275 feet per second. find the planes
question 1 a spring of spring constant k 8.250 nm is displaced form equilibrium by a distance of 0.1500 m. if the
Imagine a Hydrogen atom to consist of a single proton as a nucleus and a single electron, which orbits the proton in a circular path. then what will be the radius of the orbit when it has lost half of its original kinetic energy
A star of mass 2.0 1028 kg that is 4.6 x 1020 m from the center of a galaxyrevolves around that center once every 4.6 x 108 years. estimate the number of stars in the galaxy
an object with a mass of 5g hangs from a cord around a pulley.? the length of the cord between point p and the pulley
Determine the rebound angle ? if the coefficient of restitution for the impact of the ball with the floor is 0.4.
A package, mass M=2kg is dropped vertically from a height h=0.5m onto a horizontal conveyor belt which is moving at a uniform speed v= 2m/s. calculate the thermal engery between belt and box
A certain string just breaks while it is under 25 N of tension. A boy uses this string to whirl a 0.75-kg stone in a horizontal circle of radius 2.00 m. The boy continuously increases the speed of the stone. At about what speed will the string bre..
In a lightning bolt, a large amount of charge flows during a time of 2.1 x 10-3 s. How much charged has flowed during the lightning bolt?
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