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A hockey puck is swung at the end of a very slight 30 cm long string in a horizontal circle. If the speed of the puck is 7.0m/s and its mass is 165 grams, what is the tension force supplied by the string? You may assume for simplicity that the surfaces are friction-less. Please show all steps and explanation.
A uniform thin rod of mass 4.19 kg pivots about an axis through its center and perpendicular to its length. What must the length of the rod be so that the moment of inertia of the three-body system with respect to the described axis is 0.977 kg·m2
A 150 g mass hangs from a fishing line. If it falls and accelerates at 4.0 m/s^2, what is the tension in the fishing line
The drawing shows a rectangular block of glass (n = 1.52) surrounded by a liquid with n = 1.58. At what angle does the ray leave the glass at point B
A 64kg human sprinter can accelerate from rest to 10 m/s in 3.0s. What is the average power output of the greyhound
After a plant or animal dies, its 14C content decreases with a half-life of 5730 years. what is the age of the ancient site
force of a baseball swing, A baseball has mass 0.146kg. If the ball remains in contact with the bat for 2.5 ms, find the magnitude of the average force applied by the bat
How far apart are an object and an image formed by a 75-cm focal-length converging lens if the image is 2.64 X larger than object and is real.
When a potential difference of 166 V is applied to the plates of an air-filled parallel-plate capacitor, What is the spacing between the plates
If 100 gpm are flowing in the piping system below, and Gauge 1 reads 120psi and Gauge2 reads 94psi, how much pressure in psi is lost to friction
You are holding a compass 3.50 m from a long straight electrical supply wire that is carrying a direct current perpendicularly to the local direction of the Earth's magnetic field. find the magnitude of the current carried by the wire
Two cylindrical bars, each with diameter of 2.30 cm, are welded together end to end. One of the original bars is copper and is 0.350 m long
In the Olympiad of 700 BCE, athletes competing in the standing long jump used handheld weights called halters to lengthen their jumps. What distance would the use of the halters add to his range
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