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At a carnival, you can try to ring a bell by striking a target with a 9.68-kg hammer. In response, a 0.358-kg metal piece is sent upward toward the bell, which is 5.36 m above. Suppose that 18.6 percent of the hammer's kinetic energy is used to do the work of sending the metal piece upward. How fast must the hammer be moving when it strikes the target so that the bell just barely rings?
A bungee cord is stretched between two poles with a force of 382 N. The length of the cord is 36 meters and it has a mass of 3 kg. What is the velocity of a wave on this bungee cord
What is first order diffraction angle of light
Start with the thin lens equation and solve for the image distance in terms of the focal length and object distance. Use this to explain why you can expect a real image only
A planet of mass m = 1.15 × 10^24 kg is orbiting in a circular path a star of mass M = 1.65 × 10^29 kg. What is the orbital period (in earth days) of the planet Tplanet
What is the total mass of the reagents used in the combustion throughout the 30 days . The ball makes 17 oscillations in 16 seconds. What is it the mass of the ball.
One end of a rope is tied to a block of mass 3.10kg and you pull straight up on the other end of the rope to lift the block up off the ground with an acceleration of 3.80m/s^2
A golf ball with mass m = 0.07 kg is tied to a massless string of length L = 0.6 m. What the magnitude of the tension in the string
An astronaut's normal weight it 600 newtons. How much would she weigh while orbiting in a satellite at 12,000 kilometers [two earth radii] above the surface of Earth.
A sailboat is running along a straight course with the wind providing a constant force of 55 lb. The only other force acting on the boat is resistance as the boat moves through the water. The resisting force is numerically equal to five times the boa..
An electric heater carries a current of17.5A when operating at a voltage of 120 V. What is the resistance of the heater?
A person is riding a bicycle, and its wheels have an angular velocity of 13.9 rad/s. What is the anguar acceleration (in rad/s2) of each wheel
A 1500 kg Prius and a 2400 kg Ford F150 pickup truck are approaching an unmarked intersection. What is the speed of the Ford at the moment of impact
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