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Luggage is transported from one location to another in an airport by a conveyor belt. At a certain location, the belt movesdown an incline that makes an angle of 1.7° with the horizontal. Assume that with such a slight angle there is noslipping of the luggage. Determine the frictional force, includingsign, by the belt on a box weighing 60 N when the box is on the inclined portion of the belt and the belt speed is(a) 0 and constant, (b) 0.65 m/sand constant, (c) 0.65 m/s and increasing at arate of 0.16 m/s2, (d) 0.65 m/s anddecreasing at a rate of 0.16 m/s2, and(e) 0.65 m/s and increasing at a rate of 0.53m/s2. Take the positive direction to be up the incline.
A circular rod of length 25cm and diameter 8mm is made of 1045grade steel. (a) calculate the stress and strain in the rod, andits extension, when it is subjected to 5kN of tension. (b) Atwhat force would the rod begin to yield? (c) by what amount ..
question1the drawing not to scale shows one alignment of the sun earth and moon. the gravitational force that the sun
A Carnot engine whose cold reservoir temperature is 1.0 C has a thermal efficiency of 40%. By how much should the temperature of the hot reservoir be increased to raise the efficiency to 60%?
An equipotential surface that surrounds a point charge q has a potential of 585 V and an area of 1.27 m2. Determine q
Two sinusoidal waves of the same period, with amplitudes of 5.5 and 7.5 mm, travel in the same direction along a stretched string; What is the phase constant of the other wave
A current of constant density, J0, flows through a very long cylindrical conducting shell with inner radius a and outer radius b. What is the magnetic field in the regions rb
An echo bounces from a building exactly 1.00 s after you honk your horn. How many feet away is the building if the air temperature is 20.0 Celsius degrees
What angle does water surface make with the horizontal
A merry-go-round accelerates from rest to 0.71 in 21. calculate the net torque required to accelerate it
The electric field in a particular space is = (x + 1.9) N/C with x in meters. Consider a cylindrical Gaussian surface of radius 22 cm that is coaxial with the x axis. What net charge (in Coulombs) is enclosed within the cylinder
A railroad car with a mass of 2 x10^4 kg moving at 3.0 m/s collides and joins with 2 railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.20 m/s.
A capacitor (capacitance C1) is connected across the terminals of an ac generator. Without changing the voltage or frequency of the generator, a second capacitor (capacitance C2) is added in series with the first one. As a result, the current deli..
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