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A simple sling can be built by placing a projectile in a tube and then spinning it. Consider a simple model in which the tube is pinned and rotated about the pin in the horizontal plane at constant angukar velocity w. Assume that there is no friction between the projectile and the inside of the tube and that the projectile is initially kept fixed at a distance d from the open end of the tube. Letting d = 5 and L = 9 (L is the length of the tube), determine the value of the tubes angular velocity w if after release, the projectile exits the tube with a speed of 90 ft/s. Give answer to 4 sig figs.
a 2-kg ball b is traveling horizontally at 3 ms when it strikes 2-kg ball a. ball a is initially at rest and is
a 1700 kg car starts from rest at position a and accelerates uniformly up the incline reaching a speed of 100 kmh at
a completely reversible air container provides 36000btuhr of cooling for a space maintained at 70 degrees fahrenheit
for certain liquid mu 6 times 10-5 lb.sft2 at 50 degree f and mu 1.5 times 10-5lb.sft2 at 180 degree f. make use of
a 137-cs source has an acticity of 700 mu ci. a gamma proton with energy 0.662 mev is emitted with a frequency of 0.849
a worldwide shortage of nickel has made inconel unavailable for steam generator tube manufacturing. describe the
an automobile accelerates from rest at 2.2 ms2 for 24.6 s. the speed is then held constant for 19.8 s after which there
a vertical wall is at a temperature of 100c. it is situated in a 20c room. if the height of the square wall is 10cm and
two 20mm steel plates are welded to a rolled S section as shown. Determine the moments of inertia and the radii of gyration of the combined section with respect to the centroidal x and y axes.
calculate the quality of the system to begin with. calculate the amount of liquid water to begin with. calculate the heat transfer during the heating process.
Motor M draws in the cable with an acceleration of 4 ft/s2, measured relative to the 200-lb mine car. Determine the acceleration of the car and the tension in the cable. Neglect the mass of the pulleys.
a piston-cylinder assembly contains propane initially at 27degc 1 bar and a volume of 0.2 m3. the propane undergoes a
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