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A boeing 747 "jumbo jet" has a length of 59.7m the runway on which the plane lands intersects another runway. the width of the intersection is 25.0m. the plane decelerates through the intersection at a rate of 5.7 meter per second square and clears it with a final speed of 4.5m/s. how much time is needed for the plane to clear the intersection?
q1. the flywheel of an engine has a moment of inertia 2.80 rm kg cdot rm m 2 about its rotation axis. what is its
Two blocks are connected by a string. The smooth inclined surface makes an angle of 35 degrees with the horizontal, and the block on the incline has a mass of 5.70 kg. The mass of the hanging block is m= 2.90 kg. Find the direction of the hanging blo..
A grade school student plans to build a 31-power telescope as a science fair project. What focal length is needed for her objective lens
A 2.0 kilogram softball is pitched to you at 20 m/s. You hit the ball back along the same path, and at the same speed. find the magnitude of the average force the bat exerted
A flagpole of length 9 m and mass 35 kg is hinged at one end, where it is connected to a wall as sketched below. The pole is held up by a cable attached to the end. Find out the tension in the cable. (Assume the flagpole has an uniform mass distr..
A 2.1g plastic bead charged to -5.0nc and a 3.6g glass bead charged to 18.0nc are 1.6cm apart (center to center).what are the magnitudes of the accelerations of the plastic bead and the glass bead? What are the directions of the accelerations of the ..
A parallel-plate capacitor is charged and then disconnected from the battery that charged it. A teflon layer is inserted between the plates
Block one of mass 10kg is on a horizontal table. There is friction between the block and the table, the coefficient of kinetic friction is 0.25. Find the tension in the string and the acceleration
You may have observed that water waves advancing toward the shore have their wavefornts almost always parallel to the shoreline, independent of the direction of the wind. Nothing the fact that the velocity of waves in water decreases as the depth of ..
The ground distance is 8527 feet between point A whose elevation above sea level is 580 feet and point B whose elevation is 860 feet. Compute the flying height above sea level
A bicyclist of mass 81 kg puts all his mass on each downward-moving pedal as he pedals up a steep road. Take thediameter of the circle in which the pedals rotate to be 0.41 m, anddetermine the magnitude of the maximum torque he exerts.
one bright summer day a swimmer is floating with her head just above the surface of a large lake where the water has
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