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Glycerin in water diffuses along a horizontal column that has a cross-sectional area of 2 cm2. The concentration gradient is 3.2 x 10-2 kg/m4, and the diffusion rate is found to be 5.9 x 10-15 kg/s. Estimate what is the diffusion coefficient.
Beams of high-speed protons can be produced in "guns" using electric fields to accelerate the protons. Find what acceleration would a proton experience if the gun's electric field were 1.70 x 104 N/C
a diving bell in the shape of a cylinder with height 2.5m is closed at upper end and open at the bottom. its lowered
A 1.6 kg disk with radius 0.63 m is rotating freely at 55 rad/s around an axis perpendicular to its center. A second disk that is not rotating is dropped onto the first disk so that their centers align, and they stick together. The mass of the second..
A 10 \rm g bullet traveling at 440m/s strikes a 12kg , 1.2-\rm m-wide door at the edge opposite the hinge. The bullet embeds itself in the door, What is the angular velocity of the door just after impact
a cylinder with initial volume v contains a sample of gas at pressure p. on one end of the cylinder a piston is let
A 2.0 kg rock that is originally at rest loses 407j of potential energy while falling to the ground. Compute the kinetic energy that the rock gains while falling. What is the rock speed now before it strikes the ground?
A 70kg base runner begins his slide into second base whenmoving at a speed of 4.0 m/s. How much mechanical energy is lost due to friction
A person pushes a 14.0 kilogram lawn mower at constant speed with a force of 85.0 Newton directed along the handle, which is at an angle of θ= 47.0 degree to the horizontal. Determine the force the person must exert on the lawn mower
A parallel-plate capacitor in air has a plate separation of 1.50 cmand a plate area of 25.0cm2. The plates arecharged to a potential difference of 2.50x102 V and disconnected from the source. The capacitor is then immersedin distilled water.
On earth, two parts of a space probe weigh 12200 Newton and 2470 Newton. Obtain the magnitude of the gravitational force that each part exerts on the other out in space, far from any other objects
Two ice skaters, with masses of 30.0kg and 65.0kg , are at the center of a 60.0m -diameter circular rink. If the heavier skater reaches the edge in 40.0s , how long does the lighter skater take to reach the edge
A 1.90-cm-high object is situated 12.8 cm in front of a concave mirror that has a radius of curvature of 10.4 cm, calculate the location and the height of the image
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