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During heavy rain, a section of a mountainside measuring 3.2 km horizontally (perpendicular to the slope), 1.4 km up along the slope, and 2.8 m deep slips into a valley in a mud slide. Assume that the mud ends up uniformly distributed over a surface area of the valley measuring 0.58 km x 0.58 km and that the mass of a cubic meter of mud is 1900 kg. What is the mass of the mud sitting above a 4.3 m2 area of the valley floor?
a scout walks 5.5 km due east from camp then turns left and walks 2.75 km along the arc of a circle centered at the
A spherical balloon of volume 3.94 103 cm3 contains helium at a pressure of 1.15 105 Pa. How many moles of helium are in the balloon
Calculate the resistance in Ohms of a 1.00 m long piece of Nichrome wire. Assume its diameter is 0.426 mm
A capacitor is first connected to a 6 Volt battery and then disconnected and connected to a 12 Volt battery. Explain how does the charge on one of its plates change
An electric-generator turbine spins at 3400 rpm. Frictionis so small that it takes the turbine 19.0 min to coast toa stop. How many revolutions does it make while stopping
a very long thin rod carries electric charge with the linear density 28.0 ncm. it lies along the x axis and moves in
The speed of a bullet is measured to be 615 m/s as the bullet emerges from a barrel of length 1.35 m. Assuming constant acceleration, Find the time that the bullet spends in the barrel after it is fired
What phase difference between two otherwise identical harmonic waves, moving in the same direction along a stretched string
A large electroscope is made with "leaves" that are 78 cm long wires with tiny 17g spheres at the ends. what total charge Q must have been applied to the electroscope
Two identical objects are placed in a room at 27°C. Object 1 has a temperature of 83°C and object 2 has a temperature of 35°C.What is the ratio of the net power emitted with object 1 to that radiated by object 2?
A small sphere with mass 2.60g hangs by a thread between two large parallel vertical plates 5.00cm apart. The plates are insulating and have uniform surface charge densities and . The charge on the sphere is = 8.70×10?6C . What potential differenc..
A dipole is modelled as a neutral bar of length 3.00 cm with a positive charge Q = 6.000 C at one end and the same amount of negative charge at the other end. Another charge q = -8.000C is placed equidistant from them, 2.00 cm away. A) Discover the f..
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