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An electrically neutral model airplane is flying in a horizontal circle on a 3.0m guideline, which is nearly parallel to the ground. The line breaks when the kineticenergy of the plane is 50.0 J. Reconsider the same situation, except that now there is a point charge of +q on the plane and a point charge of -q at the other end of the guideline. In this case, the line breaks when the kinetic energy of the plane is 51.8 J. Find the magnitude of the charges.
The two upper front teeth of a person exert a total force of 30N on a piece of steak. If the biting edge of each tooth measures 10 mm x 1 mm, find out the pressure on the steak.
in a young's double slit experiment two rays of monochromatic light emerge from the slits and meet at a point on a distant screen. what is the wavelength in mm of the monochromatic light
The man completely exhales and jumps into the deep end of a pool with a depth of 9 feet. Calculate the buoyant force of the water acting on the man with his breath completely exhaled
while driving on a freeway at 110 kmh you pass a truck whose total length you estimate at 25m. a if it takes you in the
q1. the resistor in a circuit has a resistance of 148 ohms. what capacitance should be used in this circuit if the time
q1. an iron bolt of mass 65.0 g hangs from a string 32.0 cm long. the top end of the string is fixed. without touching
The diffusion constant for the alcohol ethanol in water is 1.24 10-9 m2/s. A cylinder has a cross-sectional area of 3.95 cm2 and a length of 1.84 cm. what mass of ethanol diffuses through the cylinder
Tarzan tries to cross a river by swinging from one bank to theother on a vine that is 10m long. What is the largest mass Tarzan can have and make itsafely across the river
A delivery truck travels 18 blocks north, 10 blocks east, and 16blocks south. What is its final displacement from the origin
A body is traveling at 5.70 m/s along the positive direction of an x-axis. No net force acts on the body. What is the speed of the forward part
a bullet is fired horizontally at a block of wood that is suspended by a string. the bullet strikes the block and is
A hollow sphere of inner radius 7.1 cm and outer radius 9.7 cm floats half submerged in a liquid of density 510 kg/m3. Calculate the density of the material of which the sphere is made
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