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An extreme skier, starting from rest, coasts down a mountain that makes an angle of 34.2 ° with the horizontal. The coefficient of kinetic friction between her skis and the snow is 0.156. She coasts for a distance of 17.0 m before coming to the edge of a cliff. Without slowing down, she skis off the cliff and lands downhill at a point whose vertical distance is 3.93 m below the edge. How fast is she going just before she lands?
A motorcycle and 58.0 kg rider accelerate at 2.8 m/s2 up a ramp inclined 10° above the horizontal. What is the magnitude of the net force on the rider
An un-tethered block sits on a flatbed truck as it accelerates up an incline that makes an angle of 15° with respect to the horizontal. What is the coefficient of static friction between the truck and the block
Three equal point charges, each with charge 1.00 , are placed at the vertices of an equilateral triangle whose sides are of length 0.350. Illustrate what is the electric potential energy of the system?
An airplane with a speed of 69.8 m/s is climbing upward at an angle of 40° with respect to the horizontal. Calculate the distance along the ground, measured from a point directly beneath the point of release
The following objects are released simultaneously from rest at the top of a 1.50m long ramp inclined at 3.50? to the horizontal: Which wins the race
the two flat air ballons in the drawing are 3.2 meters and 61.0 meters above the ground. what is the horizontal distance x between the two balloons
A red car and a blue car are both travelimg east, with the red car 250 m behind the blue car. how far will the blue car travle before the red car cathes up and passes it
Consider three ants each clinging for dear life to the top surface of an ordinary compact disc and not moving with respect to the labelling. The ants are at distances 3, 4, and 5 cm away from the axis of rotation of the CD which is spinning at a cons..
A 66-kg skier starts from rest at the top of a 1200-m-long trail which drops a total of 260m from top to bottom. How much energy is dissipated by friction
A friend of yours is loudly singing a single note at 400 Hz as driving toward you at 250 m/s on a day when the speed of sound is 340 m/s
A small, 100g cart is moving at 1.30m/s on an air track when it collides with a larger, 2.00kg cart at rest. What is the speed of the large cart after the collision
A ball with radius r1 and mass m1 is attached by a rod of length L to a second ball with radius r2 and mass m2. Where is the system's center of gravity
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