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A weather vane initially at rest has a moment of inertia of 0.107 kg · m2 about its axis of rotation. A 33.5 g piece of clay is thrown at the vane and sticks to it at a point 18.5 cm from the axis. The initial velocity of the clay is 20.5 m/s, directed perpendicular to the vane. Find the angular velocity of the weather vane just after it is struck.
You have a ball on a wire that is twirled in a circular orbit with a radius of 3.8 m, and the centripetal force acting on the ball, What is the speed of the ball in orbit
Consider a Young's two-slit experiment in which the wavelength of light is 45% smaller than the distance between the slits. How many complete dark fringes would be seen on a distant screen
A 43 power refracting telescope (wherepower is the angular magnification) has an eyepiece with a focallength of 4.2 cm. How long is the telescope
A gamma-ray photon produces an electron-positron pair, each with a kinetic energy of 255 keV. What was the wavelength of the photon
consider two electric dipoles p1 and p2 located at the origin 0 0 0 and on the x-axis at a 0 0 respectively. p1 points
What is an average velocity of the train throughout run
A spaceship approaches Earth with a speed of 0.70c. What is his heartbeat rate according to an observer that is at rest relative to Earth
What is the needle of a compass attracted to , What is the difference between ferromagnetic and magnetic
When a resistor is connected across the terminals of an acgenerator (111 V) that has a fixed frequency, there is a current of0.351 A in the resistor. When an inductor is connected across theterminals of the same generator, there is a current of 0...
A 2.0 m conductor is formed into a square and placed in the horizontal xy-plane. What is the magnetic flux through the conductor
The average frictional force exerted on him by the pole has a magnitude of 815 N, and his speed at the bottom of the pole is 3.7 m/s. Explain how far did he slide down the pole?
A 6.00 m long uniform rod is hinged at one end. The rod isinitially held in a horizontal position, What is the angular acceleration at the instant of release
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