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A 5.0 m-long rope hangs vertically from a tree right at the edge of a ravine. A woman wants to utilize the rope to swing to the other side of the ravine. She runs as fast as she can, grabs the rope, and swings out over the ravine. When she is directly over the far edge of the ravine, she is 1m higher than when she started.
How fast does she have to be running when she grabs the rope to build it across the ravine?
The tires of a car make 62 revolutions as the car reduces its speed uniformly from 90km/h to 40km/h . The tires have a diameter of 0.86m. What was the angular acceleration of the tires
Water (? = 1.00E-3 Pa*s) is flowing through a horizontal pipe with a volume flow rate of 0.0149 m3/s. Calculate the radius of the horizontal pipe
The pressure dissimilarity between the 4.0-cm-wide input end of a Venturi tube and the 2.0-cm-wide narrow constriction is measured by the difference in level of a water column in a glass U-tube, and found to be 12.7 cm.
A 7 L rigid (constant volume) container holds 0.81 moles of helium at an initial temperature of 75 oC. How many moles of gas will be in the container at the final temperature
an object 4.59 kg traveling at 2.76 ms collides with another object 11.80 kg that has an initial velocity of 1.81 ms in
Two children, with masses 35kg (on the left) and 44kg (on the right), sit at opposite ends of a 3.9mlong seesaw with mass 22kg, With the seesaw horizontal, find the net torque on the seesaw
Two lenses, one converging with focal length 20.5 cm and one diverging with focal length - 12.0cm , are placed 25.0 cm apart. Determine the magnification of the final image formed
A 3.90-kg object is attached to a spring and placed on frictionless, horizontal surface. Find the total energy of the oscillating system
Baseball and the Washington Monument On August 25, 1894, What was the ball's direction of motion when caught in degrees below the horizontal
Air bags are designed to deploy in 10 ms. Estimate the acceleration of the front surface of the bags as it expands. Express your answer in terms of the acceleration of gravity g
tom the cat is chasing jerry the mouse across the surface of a table 1.2 m above the floor. jerry steps out of the way
a coal-fired electric power plant has a 2000-megawatt electric power output and operates with an overall plant
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