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The drawing (Figure P2.16) shows an exploded view of an 1800-rpm motor, a gear box, and a 6000-rpm blower. The gear box weighs 20 lb, with center of gravity mid- way between the two mountings. All shafts rotate counterclockwise, viewed from the blower. Neglecting friction losses, determine all loads acting on the gear box when the motor output is 1 hp. Sketch the gear box as a free body in equilibrium.
Michael Phelps won a gold medal at the 2008 Beijiing olympics by swimming the 200 meter medley in 1:54:80. On an off-day Mike swims the medley in 1:58:32. What is the speed in mph? (Give the ans. to two decimal places)
The power capacity for all nuclear power plants in the United States is 1.01E5 MW. In one hour, what is the total change in the mass of the nuclear fuel
A small particle with a mass of 2.6 × 10-20 kilogram is oscillating with simple harmonic motion with a period of 4.6× 10-5 sec, Calculate the max displacement of the particle
Two automobiles, each of mass 1.500*10^3 kg, travel in the same direction along a straight road. find the translational kinetic energy of the center of mass
A proton is located at x = 1.0 nm, y = 0.0 nm and an electron is located at x = 0.0 nm, y = 4.0 nm. Find the attractive Coulombic force between them
A construction worker is standing in a 2.6 meter deep hole, 3.1 meter from the side of the hole. Determine how far from the edge of the hole does it land
A horizontal beam of electrons initially moving at 4.1 107 m/s is deflected vertically by the vertical electric field between oppositely charged parallel plates.
Two equally charged spheres of mass 1 gram are located 2 centimeter apart. When released, they begin to accelerate at 167 m/s2. Obtain the magnitude of the charge on each sphere
Suppose a mass of a certain spherical neutron star is twice the size of the sun and its radius is 10km. Determine the greatest possible angular speed the star can have so that the matter at its surface on the equator is just held in orbit by the grav..
what is the net workdone on the weights.A child slides down a hill on a toboggan with an acceleration of 1.8 m/s2. If she starts at rest, how far has she traveled after following lengths of time.
A wave traveling to the right along a thin cord reaches a discontinuity where the rope becomes thicker and more dense. What is the orientation of the reflected and transmitted waves
A 69N box of clothes is pulled 8.9 m up a 30° ramp by a force of 100 N that points along the ramp. If the coefficient of kinetic friction between the box and ramp is 0.22, compute the change in the box's kinetic energy.
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