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A 12.0-kg mass, fastened to the end of an aluminum wire with an unscratched length of 0.50 m, is whirled in a vertical circle with a constant angular speed of 120 rev/min. The cross-sectional area of the wire is 0.014 cm2?c Calculate the elongation of the wire when the mass is
(a) At the lowest point of the path and
(b) At the highest point of its path.
A bar length lies on two supports C and D with distance between them. Over this distance the load q(x) is placed, linearly going from 0 in C to q in D. determine the bending angles
a flat sheet of paper of area 0.200 m2 is oriented so that the normal to the sheet is at an angle of 80deg to a uniform
A Piece of balsa wood, with density: 0.12g/cm^3, with mass of 30g in air is affixed to alead sinker with a mass of 400g. What will be the apparent mass of this system when immersed in water
A moving car rear ends a parked car. The parked car moves off at an angle of 35 degrees above the horizon. The rear car ricochets off at an angle of 35 degrees below the horizon. Both cars have the same mass. If the moving car was moving 10 m/s an..
In a time of T seconds, a motorcycle can accelerate from rest to the speed v. Calculate the speed of the motorcycle (in terms of v) 7T after starting
consider the case of a wooden block moving along a horizontal track, how much is the change in mechanical energy
A diffraction grating has 1900 rulings/cm. On a screen 1.00 m from the grating, it is found that for a particular order m, the maxima corresponding to two closely spaced wavelengths of sodium (589.0 nm and 589.6 nm) are separated by 1.68 mm. Deter..
In Psychology Using the theories of Piaget, LaBouvie-Vief, and Denney (plus the ideas of fluid and crystallized intelligence), explain changes in cognitive functioning in adolescence, emerging adulthood, and middle adulthood.
Determine an angle (in radians) through which the drill rotates during this period.
A dumbbell is made of two spheres, which each have a mass M and a radius r - and a massless stick af length L. What is the torque acting on the dumbbell
q1. the two blocks are on frictionless inclines and are in static equilibrium. the block on the left has a mass of 49
A man lifts a 13 kg crate directly upwards from the floor to a shelf (6 m high) at constant speed*. What is the work done by gravity on the crate
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