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The 1994 Winter Olympics included the aerials competition in skiing. In this occasion skiers speed down a ramp that slopes sharply upward at the end. The sharp upward slope launches them into the air, where they perform acrobatic maneuvers. In the men competition, the end of a typical launch ramp is directed 63degree above the horizontal. With this launch angle, a skier attains a height of 14.8 meter above the end of the ramp. Calculate what is the skier launch speed?
A fluid with viscosity ? flows through a tube of radius R and length L. What must be the radius of the second tube
In a hydrogen atom, proton and electron are separated by 5.29×10?11m. What's the gravitational force between the two particles
What is the average distance between nitrogen molecules at atemperature of 0.4 ° C and a pressure of 0.05 atm
A piece of ice of mass 0.0240 kg at an initial temperature of-11.0o C is placed in a well-insulated cup containing0.100 kg of water at 35.0o C. Calculate the equilibrium temperature of this system in degrees Celsius.
an electron experiences the greatest force as it travels 1.7 106 ms in a magnetic field when it is moving southward.
two identical 25 g particles each carry 2.0 uc micro coulombs of charge. one is held fixed and the other is placed 1.0
A 47.0 g golf ball is driven from the tee with an initial speed of 60.0 m/s and rises to a height of 25.2 m, Neglect air resistance and determine the kinetic energy of the ball at its highest point
A 14.4 cm long tendon was found to stretch 3.79 mm by a force of 11.1 N. Calculate the Young's modulus of this tendon
two plate capacitor with a plate area 0.1 m2 and distance between the plates of 1 mm is charged with a potential of
What is the smallest radius of an unbanked (flat) track around which a bicyclist can travel if her speed is 25 km/h
You are watching a webcam of a .8kg object sitting on a scale. you are told the mass of the scale is 9kg, find the magnitude of the acceleration of the object
At one instant, a 19.0-kg sled is moving over a horizontal surface of snow at 5.00 m/s. find the magnitude of the average friction force acting on the sled while it was moving
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