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Q. A stone with a mass of 0.800 is attached to one end of a string 0.700 long. The string will break if its tension exceeds 50.0 . The stone is whirled in a horizontal circle on a frictionless tabletop; the other end of the string remains fixed.Find the maximum speed the stone can attain without breaking the string.
Q. The minimum stopping distance for a car traveling at a speed of 30 {m/s} is 60 {m}, including the distance traveled during the driver's reaction time of 0.50 {s}.What is the minimum stopping distance for the same car traveling at a speed of 41 {m/s}?
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A 3 meter long 200kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction.
An object with a net charge of 22 µC is placed in a uniform electric field of 600 N/C, directed vertically. What is the mass of object if it floats in this electric field.
Assume that a binary star system consists of two stars of equal mass. They are observed to be separated by 310 million kilometres and take 4.0 Earth years to orbit about the point midway between them.
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An orienter runs the following course: 100 m at 35 degrees, 150 m at 220 degrees, and 50 meters at 170 degrees. find the resultant displacement.
A circular wire loop of radius 13cm carries a current of 3.66 A. It is placed so that the normal to its plane makes an angle of 34.8° with the uniform magnetic field of magnitude 9.70 T.
A spherical conducting shell has an interior radius of 18 cm and an outer radius of 21cm. The shell carries a net charge of -2.4 micro coulombs. A point charge of charge +6.4 micro coulombs is placed at the center of spherical shell.
A solid, rectangular iron bar measures .40cm by 1.0cm by 30cm. Find the resistance between each of the three pairs of opposing faces, assume the faces in question are quipotentials.
A cockroach of mass m lies on the rim of a uniform disk of mass 8m that can rotate freely about its center like a merry-go-round. at first the cockroach and disk rotate together with an angular velocity of 0.200 rad/s. Then the cockroach walks half..
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