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In the pulley system shown the two upper pulleys are welded together to form one unit the cable is wrapped around the smaller pulley with the end secured to the pully (no slip) . Determine the upward acceleration of B if A has a downward acceleration 0f 2 ft/sec.
An LC circuit has a 25mH inductor and a 12uF capacitor. The current is at its maximum value of 0.7A at t=0. How long does it take for the capacitor to be fully charged
A uniform, cylindrical pulley of mass M=12.7 kg and radius R=0.636 m rotates freely about a fixed horizontal axis. What is the magnitude of the angular acceleration of the pulley
two charges are located on the x axis q1 6.0 microc at x1 4.0 cm and q2 6.0 microc at x2 -4.0 cm. two other charges
Assume that the masses of the chains, pulleys, and ropes are negligible and the crate is rising with an acceleration of 2.6 m/s2. Identify the force.
The Arecibo radio telescope in Puerto Rico can detect a wave with an intensity as low as 1x10-23 W/m2. As a “best-case” scenario for communication with extraterrestrials, consider the following: Assume an advanced civilization located at point A, a d..
A block starting atop a frictionless hemispherical dome starts sliding from rest. Write down the two equations of motion of the block in terms of r and ? (i.e. use polar coordinates).
An AC generator with a variable frequency is connected across a 45 cm piece of the coaxial cable( outer radius of 4.5mm and an inner radius of 1.5mm, what is the new resonant frequency
At the instant the traffic light turns green, an automobile starts with a constant acceleration a of 1.8 m/s2. How fast will the automobile be traveling at that instant
An astronaut travels to a distant star with a speed of 0.52 relative to Earth. From the astronaut's point of view, the star is 7.4 from Earth. On the return trip, the astronaut travels with a speed of 0.87 relative to Earth.
The plate separation of a charged capacitor is 0.06104 m. Aproton and an electron are released from rest at the midpointbetween the plates. Ignore the attraction between the two particles, and determine how far the proton has traveled by the time the..
Find the point of no return for an airport runway of 1.45 miles in length if a jet plane can accelerate at 9.8 ft/s2 and decelerate at 6.13 ft/s2. What length of time is available from the start of the motion in which to decide on a course of actio..
A hotel elevator ascends 273 m with a maximum speed of 3.78 m/s. Its acceleration and deceleration both have a magnitude of 0.91 m/s2. How long does it take to make the complete trip from bottom to top?
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