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an 18-kg groceryi cart is pushed at constant speed along an aisle by a force of 12N. The applied force acts at a 20 degree angle to the horizontal. Find the work done by each of the forces on the cart if the aisle is 15m long.
1000 kg of seawater at 17.5 C and salinity of 3 percent is mixed with 500 kg of pure water with initial temperature 5 C, Determine the final temp C and salinity % of the mixture?
A 2000 kg car traveling at a speed of 23m/s skids to the halt on wet concrete where = 0.60. How long are the skid marks.
How fast must the bat fly, v_b, to hear a beat frequency of 205 rm {Hz}.
If the partial pressure of water vapor is 47 mm Hg in the lungs at 760 mm Hg pressure, what percentage of air does the water vapor constitute?
A train is travelling up a 4.0 incline at the speed of 3.25 when the last car breaks free and begins to coast without friction. How long does it take for the last car to come to rest momentarily.
The magnitude of the field produced by a point charge of +5.4 micro-coulombs has a magnitude of 5.9 x 106 N/C, How far is the point from the charge
Suppose that you wish to mold a uniform wire from 1.50 g of copper. The wire needs to have a resistance of 0.0400 ohm's, What should be the diameter fo the wire?
Estimate mean and maximum velocities for a liquid
A dipole composed of a ±q point charge, separated by a distance d = 2.24e-14 m and aligned parallel with the x axis, Find the expression for the potential on the x axis
What is the total momentum of system after the collision.
An aircraft with a mass of 856 kg accelerates from 0 to 83 m/s in 9 seconds, at which time the aircraft launches. What is the kinetic energy of the aircraft
A tank of water 3.0 m deep sits on a table 1m tall. A hole is located 2m from the bottom of the tank. Water flows out of hole and strikes the ground. Where does it strike the ground? Suppose incompressible, non viscous flow.
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