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A 30,000 litre water tank is 2.6m high and 4.33 m in diameter. It has two outlet pipes, one at the base of the tank and one higher up. The distance between the two means that when the water level is at the height of the upper pipe there is still 10,000 litres of water remaining in the tank for fire fighting if needed. The top portion of the tank is used for stock drinking water. If the tank is holding 30,000 litres of water what is the ratio of the water velocity coming out of the bottom tap compared to the velocity of the higher tap when both taps are initially opened? Assume both taps are the same size.
If a heat engine absorbs 940.0 J of heat from the hot reservoir and exhausts 330.0 J of heat to the cold reservoir, what was the work done by the engine
Two point charges 0.606 m apart experience a repulsive force of 0.368 N. The sum of the two charges equals 1.08 10-5 C
A 120g ball moving at .30 m/s in the + x-direction is subject to a 0.15N force in the - y-direction for 3.0s. Find the magnitude of the ball's momentum change
A small object with a mass of 333 mg carries a charge of 30.0 nC and is suspended by a thread between the vertical plates of the parallel-plate capacitor. The plates are separated by 2cm.
A 96.0 Kg man stands on a bathroom scale in an elevator that is accelerating upward at a rate of 1.90m/s^2. What is the bathroom scale reading in lbs
The coefficient of performance of a refrigerator is defined as the ratio of heat extracted from the refrigeration compartment to the work required to operate the refrigerator
Light from an argon laser strikes a diffraction grating that has 5306 lines per centimeter. Determine the wavelength of the laser light
The electric field at the point x = 5.00 cm and y = 0 points in the positive x direction with a magnitude of 5.00 N/C. Find the location of the point charge
Cold fusion theory.
A convex mirror has a radius of curvature of 50.0 cm. A ruler (30.0 cm in length) is located 25.0 cm in front of the mirror and oriented at an angle of 90 degrees to the principal axis, as shown below. What are the a) location and b) height of the ..
The rain-soaked shoes of a person may explode if ground current from nearby lightning vaporizes the water. what average current is required to vaporize the water
What is the ideal banking angle for a gentle turn of 1.80 km radius on a highway with a 110 km/h speed limit (about 68 mph), assuming everyone travels at the limit
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