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A boy whirls a stone in a horizontal circle of radius 1.7 m at a height of 2.0 m above the ground. The string breaks, and the stone flies off horizontally and hits the ground 10 m horizontally from where the string broke.
Determine the speed of the stone when the string broke.
Determine the magnitude of the centripetal acceleration acting on the stone when it was being swung in a circle.
A string is wrapped tightly around the circumference of a wheel with a mass of 1.23 kg and a radius of 0.324 m. What is the moment of inertia of the wheel
You have to move your 900N couch before a delivery company drops off your new one. How much does your roommate weigh
Why does the procedure of gently vibrating the force table allow the ring to discover its true equilibrium position (and thus indicate if the system is truly balanced)? Suppose that there is no problem with the ring getting hooked on the center post.
A wagon is rolling forward on level ground. Friction is negligible.The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, and rock is 91 kg. The mass of the rock is0.30 kg.
The ball lands on the elevated green, 5.50m above the initial position near the hole, and stops immediately. How much time passed while the ball was in the air?
Calculate the Reynolds number for 25C water flow in a 1-in nominal diameter sanitary pipe at 0.5 kg/s
several students are riding in bumper cars at an amusement park. the combined mass ofcar a and its occupant is 250 kg.
At typical nuclear power plants, refueling occurs every 18 months. Assuming that a plant has operated continuously since the last refueling and produces 1.0 GW of electrical power at an efficiency of 26%, how much less massive are the fuel rods a..
A cork on the surface of a pond bobs up and down two times per second on ripples having a wavelength of 8.80 cm. If the cork is 13.5 m from shore, how long does it take a ripple passing the cork to reach the shore?
Kieran takes off down a 50m high, 10° slope on his jet-powered skis. The skis have a thrust of 320 N. The combined mass of skis and Kieran is 50 kg (the fuel mass is negligible). Kieran's speed at the bottom is 40 m/s. What is the coefficient of k..
a wedge-shaped sliver of glass viewed from above is illuminated with 436-nm light. the sharp edge is dark. what is the
A 85 kg window cleaner uses a 14 kg ladder that is 5.9 m long. He places one end on the ground 3.4 m from a wall, find the angle (relative to the horizontal) of that force on the ladder
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