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A grinding wheel in the shape of a solid disk is 0.300m in diameter and has a mass of 2.50kg . The wheel is rotating at 2100rpm about an axis through its center. A) What is its kinetic energy? B) How far would it have to drop in free fall to acquire the same amount of kinetic energy?
A3.50kg object is attached to a spring and placed on a horizontal, smooth surface. A horizontal force of24.0N is required to hold the object at rest when it is pulled 0.200 m from its equilibrium position (the origin of thexaxis).
What is the kinetic energy of a 0.5-kg object moving at a constant speed of 2 m/s, A physics-110 student needs 500 W of Power to climb two flights of staris to get to the physics class room in 40 s
whose first two components are the polar coordinates of the horizontal displacement between the planes, and whose third coordinate is the vertical displacement between the planes. Consider east to be the positive x axis and north to be the positiv..
One mole of an ideal gas does 1408 J of work on the surroundings as it expands isother- mally to a final pressure of 1.6 atm and vol- ume of 29L. Find out the initial volume.
At one point in a pipeline, the water's speed is 2.95 and the gauge pressure is 3.80×104. Find the gauge pressure at a second point in the line 10.8 lower
A bowling ball encounters a 0.760 m vertical rise on the way back to the ball rack, as the drawing illustrates. Find the translational speed at the top
Velocity has a magnitude and a vector. consider a boat moving initally with velocity of 30 m/s directly west. What is the change in velocity
An automobile with 0.200 m radius tires travels 70,000 km before wearing them out. How many revolutions do the tires make
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.
In a skating stunt known as "crack-the-whip," a number of skaters hold hands and form a straight line. find the magnitude of the centripetal force that acts on him
A 135-kg platform oriented horizontally consists of a uniform disk of radius 1.59 m and can rotate about the vertical axis through its center. Find the moment of inertia of this system
At a soft drink bottling plant, a horizontal section of pipe carrying citric acid in liquid form goes from a cross-sectional area of 8.00 cm2, determine the liquid flow speed and the liquid pressure
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