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A metal block of mass 1.220 kg is hanging from a string. The tension in the string is 7.712 N. The block is submerged in a beaker of fluid and is stationary. What is the magnitude and direction of the buoyant force acting on the block? Consider making a free body diagram showing the three forces acting on the block.
Upward or downward?
A block and a gun are firmly affixed to opposite ends of a long glider mounted on a frictionless air track. find the mass of the gun-glider-block system
A model rocket is launched straight upward. Its altitude y as a function of time is given by y = bt -ct2, where b = 82 m/s, c = 4.9 m/s2, t is the time in seconds, and y is in meters, (a) make use of differentiation to find out a general expressio..
Two adjacent natural frequencies of an organ pipe are determined to be 986 Hz and 870 Hz. (Assume the speed of sound is 343 m/s.), Calculate the fundamental frequency of this pipe
In the macroscopic world, you know that you can hear but cannot see around corners. Explain why sound diffracts easily around a classroom door
A 0.145 kg baseball pitched at 42.0 m/s is hit on a horizontal line drive straight back toward the pitcher at 52.0 m/s. calculate the average force between the ball and bat
A satellite is in a circular orbit about the earth (M = 5.98 x 1024 kg). The period of the satellite is 6.84 x 104 s. What is the speed at which the satellite travels
If your conducting an experiment by heating a Styrofoam cup of water with an electric current of 2.8A, a voltage of 11V, How much time does it take to complete the experiment
If you are in a car accident with an initial speed of 119 km/h and you are stopped by an airbag that inflates from the dashboard, over what distance should the airbag stop you for you to survive the crash.
A 36.0 kg child swings in a swing supported by two chains, each 2.90 m long, find the child's speed at the lowest point
A meter stick supported at the 50 cm mark has masses of 300 g & 200 g hanging from it at the 10-cm & 60-cm mark, respectively. Where should we hang a third, 400-g mass to keep the meter stick balanced?
A copper container of mass 0.080kg and specific heat 387Jkg^-1K^-1 contains 0.3kg of water and 0.04kg of ice at 0 degrees Celsius. Find the mass of the water left in the container
During a solar eclipse, the Moon, Earth, and Sun all lie on the same line, with the Moon between Earth and the Sun. DATA: Msun=1.991×1030 kg, Mearth=5.98×1024 kg, Mmoon=7.36×1022 kg.
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