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Demonstrate that gravitational energy is not extensive: show that the gravitational energy of a sphere of radius 'r' and uniform density varies with volume V^n and find the exponent 'n'.
A coffee filter of mass 1.5 grams dropped from a height of 2 m reaches the ground with a speed of 0.7 m/s. How much kinetic energy Kair did the air molecules gain from the falling coffee filter? begin from the Energy Principle, and choose as the s..
A 68.0 kg person escapes from a burning building by jumping from a window 25m above a catching net. Assuming that air resistance exerts a 95N force on the person during the fall, determine the person's velocity just before hitting the net.
A cube of ice is taken from the freezer at -8.0 and placed in a 113 aluminium calorimeter filled with 306 of water at room temperature of 20.0. The final situation is observed to be all water at 15.0.
Assume that the only force acting on him throughout the collision is that as a result of the ground.
assuming the weight is evenly distributed.On a hot day in Las Vegas, an oil trucker loaded 37000 L of fuel. He encountered cold weather on the way to Utah, where the temperature was 23K lower than Las Vegas.
A rectangular container measuring 23 cm 51 cm 65 cm is filled with water. What is the mass of this volume of water in kilograms and grams.
A 3.80 m-long, 430 kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 66.0 kg construction worker stands at the far end of the beam. What is the magnitude of torque abou..
What is mechanical energy dissipated by resistive forces
A computer disk is 8.0 cm in diameter. A reference dot on the edge of the disk is initially located at theta=45 degrees. The disk accelerates steadily for 0.50 s, reaching 2000 rpm, after those coasts at steady angular velocity for another 0.50 s.
What impulse Ft should be supplied to bring the ball to rest? If the ball is stopped in 0.03 s, what is the average force of the ball on the catcher's hand.
If a vehicle is traveling at velocity v and takes a distance d to stop, then how fast is a vehicle traveling if it takes a distance of 3d to stop. suppose mass and acceleration are equal.
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.
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