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Figure, which is not drawn to scale, shows a four-strand roller chain idler sprocket that rotates on a stationary shaft, supported by two sliding-surface bearings inside the sprocket. The chain transmits 3.7 kW at a chain velocity of 4 m/s, and the sprocket diameter is 122.3 mm. The distance between the inside edges of the sprocket shaft support is 115 mm.
(a) Determine a satisfactory combination of bearing length, diameter, and material.
(b) What considerations other than those taken into account in part (a) might influence the final decision of bearing diameter and length?
A conducting bar rests on two parallel horizontal rails 50 cm apart forming a square area. The resistance of the bar and the rails is assumed to be constant and equal to 0.05 ??. What is the maximum value of the force acting on the bar during that ..
a bar of length 2 cm slides along metal rails at a speed of 1 cms. the bar and rails are in a magnectic field of 2 t
A thin film of acetone (n = 1.25) coats a thick glass plate (n = 1.52). White light is incident normal to the film. Calculate the thickness of the acetone film
a current of 6.09 a in a solenoid of length 13.6 cm creates a 0.361-t magnetic field at the center of the solenoid. how
A rock of mass 150g is thrown vertically up into the air with a speed of 15 m/s. How high will it travel?
A 2.9-kg box is sliding along a frictionless horizontal surface with a speed of 1.8 m/s when it encounters a spring. Determine the initial speed the box would need in order to compress the spring by 1.2 cm
In a football game, a receiver is standing still, having just caught a pass. Before he can move, a tackler, running at a velocity of +3.3 m/s, grabs him. find the mass of the receiver
A mild structural steel beam has a solid square cross section of 100mm and is simply supported by two supports 3m apart. Calculate the dead load that can be safely supported when applied to the middle beam.
A car starts from rest and then accelerates uniformly to a linear speed of 16 m/s in 42 s. If the tires have a radius of 27 cm, what are the following.
If the wavelength of light is 400 nanometers in a substance where the speed of light is 2.35 x 108 meter per second, evaluate the wavelength of this light in air
Two mirrors form a vertex with an angle of 128°. If a ray of light strikes mirror 1 with an angle of incidence of 48°, find the angle of reflection of the ray when it leaves mirror 2
The chime is struck?
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