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A hiker plans to swing on a rope across a ravine in the mountains, as illustrated below L=6 meter and X=2.8, and to drop when she is just above the far edge.
(a) Find at what minimum horizontal speed should she be running when she starts to swing?
One of the most powerful cranes in the world operates in Switzerland. It can slowly raise a load of M = 5230.0 tonnes to a height of h = 12.0 m, How much work is done by the crane
The period of a physical pendulum is measured first at sea level, where the pendulum completes 100 cycles in 1561 s, and then on a mountaintop, find the height of the mountain
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. What is the radius of a chamber
Three charges, q1=2.0x10^-8 C, q2= -3.0x10^-8 C, and q3= -4.0x10^-8 C, are located on the y-axis, Find the resultant force exerted on the third charge q3 by the other two charges
The battery has internal resistance of 0.100 Ω, and the rod and rails have negligible resistance. A 2.02 T magnetic field is directed perpendicular to the plane of the circuit. Find the magnetic force on the rod. F= 38.78 N. Find out the rod's spe..
The velocity of the electrons in the wires is very slow (few mm/s), but when one turnsonthe light, onedoesn't see any delay. Why?
A model airplane is being flown on a guideline that can sustain at most 180 Newton of tension. Determine the radius of the smallest horizontal circle in which the plane can be flown
a child throws a penny off of the eiffel tower h 324m with a downward velocity of magnitude v0 13 ms. find the speed
A block of wood weighing 2N slides down a 37^0 inclined plane starting from rest and reaching 2 m/s. What is the kinetic coefficient of friction between the block and slide
An AC source operating at 60 Hz with a maximum voltage of169 V is connected in series with aresistor (R = 1.4 k) and acapacitor (C = 2.5 µF). What is the maximum value of the current in the circuit? What are the maximum values of the potential diff..
A steel cable is to support an elevator whose total (loaded) massis not to exceed 3100 kg. calculate the minimum diameter for the bold
a wheel that is rotating at 33.3 rads is given an angular acceleration of 2.15 rads2. through what angle has the wheel
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