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A weather vane initially at rest has a moment of inertia of 0.104 kg · m2 about its axis of rotation. A 28.5 g piece of clay is thrown at the vane and sticks to it at a point 12.5 cm from the axis. The initial velocity of the clay is 21.0 m/s, directed perpendicular to the vane. Find the angular velocity of the weather vane just after it is struck.
A small electric car overcomes a 250 N friction force when traveling 30 km/h. How much power is dissipated in the coils
We want to design a freeway off ramp that has a radius appropriate for the posted speed. What is the radius of the curved exit ramp such that the car does not skid off the ramp
A rifle bullet is fired horizontally off the top of an ocean-based drill site. If the air resistance is negligible and the vertical distance to the water is 35 m, what additional information is needed to determine the time required for the bullet ..
A downward force of 60 N is exerted on the top of the book by a hand pushing down on the book. What is the gravitational force acting on the book
A negatively charged particle remains stationary in an downwardly directed E field between two parallel charged plates separated by 2cm. How many electrons does the charged particle contain
A 2.20 kg bucket containing 10.0 kg of water is hanging from a vertical ideal spring of force constant120 N/m and oscillating up, What is the shortest period this system can have
A snowboarder starts from rest and rides 39.47 m down a snow-covered slope that makes an angle of 33.19° with the horizontal, How far will she travel along the flat snow
A double slit experiment is performed with sodium(yellow) light of wavelength 589.3nm, Find the separation between slits
An object falls off of a pier and into the ocean (sea water) where it displaces a total volume of 2.2 cubic meters of sea water. What is the buoyant force acting on the object in newtons
A golf ball with mass 45.90 g and diameter 42.60 mm is struck such that it is moving with a speed of 53.79 m/s and rotating. What is the rotation frequency of the golf ball
The rotor (flywheel) of a toy gyroscope has mass 0.140 kg. Its moment of inertia about its axis is The mass of the frame is 0.0250 kg. Find the upward force exerted by the pivot
An airplane moves at 120 m/sec to the west with respect to the air. How fast does the airplane move
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