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Two skaters, one with mass 60 kg and the other with mass 44 kg, stand on an ice rink holding a pole of length 8.2 m and negligible mass. Starting from the ends of the pole, the skaters pull themselves along the pole until they meet. How far does the 44 kg skater move?
a car weighing 500 Lbs with the velocity of 60 miles per houris trying to negotiate a sharp turn on a flat curvy road. explain in which direction the car will go
A +6.00-µC charge is moving with a speed of 6.30 104 m/s parallel to a very long, straight wire. Find the magnitude and direction of the force on the charge
A dolphin emits ultrasound at 100 kHz} and uses the timing of reflections to determine the position of objects in the water
the pressure change outside a house is +10.00mmHg. the roofhas two halves, each with the area of 61.045m^2, what is the magnitude and direction of the net force
Bob, of mass m, drops from a tree limb at the same time that Esther, also of mass m, begins her descent down a frictionless slide. If they both start at the same height above the ground, which is true about their kinetic energies as they reach the gr..
A round pipe of varying diameter carries petroleum from a wellhead to a refinery. At the wellhead the pipe\'s diameter is 50.5 cm, what is the pipe\'s diameter at the refinery
A 1/2 kg ball is dropped from rest at a point 5m above the floor and bounces back with a speed of 6m/s. And is there a way to determine the impulse the ball applies to the floor
What is the speed of the block while the spring is till now compressed by xf=0.14m.
a ladybug with a velocity of 10.0 mms w crawls on a chair that is being pulled 50 degrees n of w at 40.0 mms. what is
A rocket is launched at an angle of 54.0° above thehorizontal with an initial speed of 97m/s. The rocket moves for 3.00 s along its initial line of motionwith an acceleration of 30.0m/s2. At this time, its engines fail and the rocket proceeds to m..
A uniformly charged plastic disk has a radius of 0.440 m. At what distance from the center along the central perpendicular axis is the magnitude of the electricfield equal to one-half the magnitude of the field at the center ofthe surface of the disk..
The "reaction time" of the average automobile driver is about 0.7s. Compute the total distance covered in coming to a stop after a signal is observed from an initial velocity of 12.0
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