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A kicker's extended leg is swung for 0.4 seconds in a counterclockwise direction while accelerating at 200 deg/s2. What is the angular velocity of the leg at the instant of contact with the ball?
Drag race tires in contact with an asphalt surface have an extremely high coefficient of static friction. Assuming a constant acceleration and no slipping of tires, estimation the coefficient of static friction needed for a drag racer to cover 1.0 km..
Skier loses a ski at the top of a 98 m hill. The ski proceeds to glide down the hill frictionless. Illustrate what speed is the ski traveling at the bottom of the hill?
what most height above the ground will the rocket achieve.
Arlene is to walk across a high wire strung horizontally between two buildings 11.0 m apart. The sag in the rope when she is at the midpoint is 10.0°. If her mass is 56.0 kg, what is the tension in the rope at this point.
Two objects each have a positive charge. The total charge on both objects is 390 µC. When the objects are placed a distance of 1.20 m apart, each exerts an electrostatic force of 21.3 N on the other. What is the charge on each object? (Round the a..
An automobile battery has an emf of 12.2 V and an internal resistance of 0.088 omegacap.gif. What is the potential difference across the headlight bulbs when they are the only load on the battery
The electron beam inside a television picture tube is 0.300mm in diameter and carries a current of 55.0 uA. What is the current density in the electron beam
Outline what you know about Plasmonics? Outline what you know about Raman spectroscopy and surface enhanced Raman spectroscopy?
What is the radius of curvature of the mirror. How far would it coast before starting to roll back down.
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 5.7 kg . The mass of the hanging block is = 2.9 kg.
Since the vehicles stick together after the collision and take the direction of the large truck (greater momentum), I guessed that the small car would have a greater change in kinetic energy.
A bungee cord is stretched between two poles with a force of 443 N. What is the velocity of a wave on this bungee cord
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