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Water is circulating through a closed system of pipes in a two floor apartment. On the first floor, the water has a gauge pressure of 3.10 105 Pa and a speed of 2.4 m/s. However, on the second floor, which is 4.2 m higher, the speed of the water is 3.4 m/s. The speeds are different because the pipe diameters are different. What is the gauge pressure of the water on the second floor?
A block and a gun are firmly affixed to opposite ends of a long glider mounted on a frictionless air track. find the mass of the gun-glider-block system
The total electric field consists of the vector sum of two parts. One part has a magnitude of E1 = 1300 N/C, Find the magnitude and direction of the total field
Find out (a) capacitance and (b) maximum voltage that can be applied to a Teflon-filled parallel- plate capacitor having a plate area of 175 cm2 and an insulation thickness of 0.040 mm.
A 1000kg car traveling at a speed of 40m/s skids to a halt on wet concrete where the friction force is 6000N
String 1 in the figure has linear density 2.90 and string 2 has linear density 3.20 . A student sends pulses in both directions by quickly pulling up on the knot, then releasing it. Consider the pulses are to reach the ends of the strings simultaneou..
A stone weighing 8.0 kg is pressed against a vertical spring with force constant 7.80 N/cm. What is the maximum height the stone reaches from its release point
An engine with reservoir temperatures of 387 K and 725 K operates at half the efficiency of a Carnot engine. If the hot reservoir supplies the engine 4670 J of heat energy during each cycle, how much net work does the engine do in a cycle?
A 2.50-kg ball, moving to the right at a velocity of +3.83 m/s on a frictionless table, collides head-on with a stationary 8.10-kg ball. Find the final velocities of (a) the 2.50-kg ball and of (b) the 8.10-kg ball if the collision is elastic. (c) Fi..
Consider a heat engine that operates between thermal reservoirs at 510 K and 242 K. Suppose the engine does 4900 J of work while it expels 103 J of energy to the cold reservoir. Is this engine possible in the real world? Hint: Violations of the secon..
The cable below supports a unoformly distributed load. The max tension that the cable can withstand is 41 x 10^6 N, What minimum length of cable is needed
Some hydrogen gas is enclosed within a chamber being held at 200 degrees C with a volume of 0.025 m^3. What is the final volume of the container
An unspecified force causes a 0.5-kg object to accelerate at 0.2 m/s2. If 0.3 kg is added to the 0.5-kg object and the force remains the same, what is the acceleration (in m/s2) of the heavier object?
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