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Two 0.8-lb balls are to be put successively into the center C of the slender 4-lb tube AB. Knowing that when the first ball is put into the tube the initial angular velocity of the tube is 8 rad/s and neglecting the effect of friction, determine the angular velocity of the tube just after
(a) the first ball has left the tube,
(b) the second ball has left the tube.
read the article basic choices and constraints on longterm energy supplies paul b. weisz. summarize the article in
A spaceship travels in a circular orbit around a planet. It applies abrupt thrust and increases its speed by a factor f. If the goal is to change the orbit from a circle to a parabola, what should f if the thrust points in the tangential direction?
At 28.0 m below the surface of the sea (density = 1 025 kg/m3), what is the volume of the bubble just before it breaks the surface
A window washer with a mass of 79.0 kg stands a distance, D = 0.800 m, from the left end of a plank of length, L= 1.90 m, Find T2, the tension in the right cable
A spaceship leaves Earth traveling 0.70c. A second spaceship leaves the first at a speed of 0.88c with respect to the first. Calculate the speed (including sign) of the second ship with respect to Earth
A 3.11 kg object initially moving in the positive x-direction with a velocity of +5.30 m/s collides with, Find the final components of velocity of the composite object
A wire with a resistance of 7.1 Ω is drawn out through a die so that its new length is 5 times its original length. Find the resistance of the longer wire, assuming that the resistivity and density of the material are unchanged.
A uniform solid sphere rolls down an incline. Obtain what must be the incline angle (deg) if the linear acceleration of the center of the sphere is to have a magnitude of 0.20 gram
When a thin slab of semiconducting material is illuminated with monochromatic electromagnetic radiation, Determine the energy gap of the semiconductor
a simple 1.5 m pendulum oscillates on earth where the acceleration due to gravity is 9.79 m/s^2. How many oscillations will it make in 5 minutes
A standard deck of cards contains 52 different cards. A poker hand consists of five cards, chose randomly. How many different poker hands are there
a 100 incandescent light bulb has a cylindrical tungsten filament 33.0 long 0.430 in diameter and with an emissivity of
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