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A skater with an initial speed of 8.40 m/s stops propelling himself and begins to coast across the ice, eventually coming to rest. Air resistance is negligible.
(a) The coefficient of kinetic friction between the ice and the skate blades is 0.100. Find the deceleration caused by kinetic friction.
(b) How far will the skater travel before coming to rest?
a rectangular tank open to the atmosphere is filled with water to a depth of 2.5 m as shown. a u-tube manometer is
The magnetic field in an electromagnetic wave has a peak value given by B = 5.5 µT. For this wave, determine the peak electric field strength
A current of 30.0 mA is maintained ina single circular loop with a circumference of 2.40 m. A magnetic field of 0.590 T is directed parallel to the plane of theloop. What is the magnitude of the torque exerted on the loop by the magnetic field?
The International Space Station orbits at an average height of 350 km above sea level. Determine the acceleration due to gravity at that height, and find the orbital velocity and period of the space station? The Hubble Space Telescope orbits at 60..
Calculate the work done by 0.935 mol of an ideal gas when it expands isothermally from 225 bars to 1.71 bars at (a) 300 K and (b) 1000 K.
A 0.280-kg ball makes an elastic head-on collision with a second ball initially at rest. The second ball moves off with one fourth the original speed of the first ball. What is the mass of the second ball?
A steam turbine receives steam at a pressure of 1MPa, 300degC. The steam leaves the turbine at a pressure of 15kPa. The work output of the turbine is measured and is found to be 600kJ/kg of steam flowing through the turbine.
A physics teacher tells her class that their final project requires the students to measure a specific variable and determine the velocity of a car with no more than 2.5% error. Will Jennifer and Johnny pass their final project
Your groceries are in a bag with paper handles. Find what is the greatest mass of groceries that can be lifted safely with this bag, given that the bag is raised with constant speed
A golfer hits a shot to a green that is elevated 3.20 m above the point where the ball is struck. find the speed of the ball just before it lands
A charge of -5.5 micro Coulombs is placed at the origin of a coordinate system. Another charge of -5.5 micro Coulombs is placed at x = +0.22 m, y = +0.15 m.
Determine the rotor speed of a shredder. The shredder's motor inertia is 75000 lb-ft2, starting time is 30 s, and power is 80kW
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