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Water is circulating during a set of pipes in a closed heating system (think radiators) for a two floor house. On the first floor, the measure pressure of the water is 3.4 x 105 Pa and its speed is 2.1 m/s. On the second floor, which is 4.0 m higher, the speed of the water is 3.7 m/s because the size of the pipes has changed. What is the measure pressure of the water on the second floor?
When four people with a combined mass of 300 kg sit down in a 2.0 103-kg car, they find that their weight compresses the springs an additional 0.65 cm. What is the frequency of the car's vibration
At the end of an amusement park ride, you want the gondola to stop without the acceleration exceeding 2 g%u2019s. what is the maximum allowed braking force
The first bright fringe of a diffraction grating of 600 ruling/mm is found at angle of 21o. Evaluate what the wavelength of light of the source
A pot with a steel bottom 7.95 mm thick rests on a hot stove. The area of the bottom of the pot is 0.170 m2. The water inside the pot is 100.0°C at and 0.490 kg are evaporated every 3.00 min.
a particular satellite was placed in a circular orbit about 145 mi above earth.a determine the orbital speed of the
You're riding a Ferris wheel while sitting on a scale. A Ferris wheel with radius 9.6m has period 34s. The scale reading for a 80kg person at the BOTTOM of the Ferris wheel, assuming a constant rotation rate, is F = 810N. Find the scale reading for a..
a helicopter moves in such a way that its position at any time is described by the horizontal and vertical equations x
What fraction of ice is submerged when it floats in freshwater, given the density of water at a temperature of 0 degrees celcius is very close to 1000 kilograms/meter cubed
hal has a pet sink which has a mass of 10.0 kg. he likes it so much he gave it a name eafin. while transporting the
A 5?, 10?, and 20? resistor are connected in parallel and the combination connected in parallel to a 20V battery with negligible resistance
A motorcycle starts with a constant acceleration of 3.0 m/s^2. At just that instant a buick with a constant speed of 20 m/s passes the motorcycle, How fast is the motorcycle travelling when it overtakes the buick
On average, each American produces 20,000 kg of CO2 per year, mostly through the consumption of fossil fuel such as oil, coal, and natural gas. what would be the length of each side of the cube
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