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A ball on the end of a string is whirled around in a horizontal circle of radius 0.25 centimeter. The plane of the circle is 2.0 meter above the ground. The string breaks and the ball lands 2.0 meter away from the point on the ground directly beneath the ball's location when the string breaks. Find the magnitude of the centripetal acceleration of the ball during its circular motion?
A car approaches the top of a hill that is shaped like a vertical circle with a radius of 49.2 m. What is the fastest speed that the car can go
A child rides a toboggan down a hill that descends at an angle of 18.6? to the horizontal. The hill is 37.6 m long. find the vertical component of the child's displacement
An 85.2kg propeller blade measures 2.23m end to end. Model the blade as a thin rod rotating about its center of mass. Find the tangential speed at the blade tip
what is the maximum possible value of the angular momentum for an outer electron in the ground state of a scandium
After a 0.839 nm x-ray photon scatters from a free electron, the electron recoils with a speed equal to 1.48E+6 m/s. Through what angle was the photon scattered
a certain particle is sent into a uniform magnetic field with the particles velocity vector perpendicular to the
An electromagnetic wave in vacuum has an electric field amplitude of 405 V/m. Calculate the amplitude of the corresponding magnetic field
describe how an electric current is generated and transported. assess the current state of our national grid in the
An iron block of unknown mass is heated to 200 degrees Celsius. It is then placed on a 500 gram block of ice at zero degrees Celsius. What is the mass of the iron block
A block of solid water (m = 12g, Ti = -5 degress C) is placed as ammo inside a spring loaded cannon. The spring in this cannon has a stiffness of k = 20,000 N/m and is compressed by 1 m. by what percent has the block melted
A coaxial cable consists of a cylindrical metal sheath of radius b=3.5cm surrounding a conducting wire with outer radius a=.6cm
An air traffic controller observes two aircraft on his radar screen. the first is at altitude 850m, horizontal distance 19.1 and 26.00 degree south of west. The second aircraft is at altitude 1000m, horizontal distance 17.8km and 25.0 degree south of..
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