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During heavy rain, a section of a mountainside measuring 3.4 km horizontally, 1.2 km up along the slope, and 0.53 m deep slips intoa valley in a mud slide. Assume that the mud ends up uniformly distributed over a surface area of the valley measuring 0.40 km x0.40 km and that the mass of a cubic meter of mud is 1900 kg. What is the mass of the mud sitting above a 3.8 m2 area of the valley floor?
A 33.0-mH inductor has a reactance of 2.10 k?. What is the new reactance of the capacitor
A pendulum consists of a 4.98kg mass on the end of a 0.873 m string. The mass is pulled aside so the string makes an initial angle with the vertical of 12.5o. The mass is then released with initial speed of 2.10m/s upward and perpendicular to the rop..
Water is at rest at the bottom of a well of depth h = 7.82 m. A pump lifts mass at a rate of dm/dt = 119 kg/minute from the well and ejects it with a speed v = 3.74. m/s. find P, the power (energy per time) needed to do this work
Find both the position of as a function of time x(t) and the velocity v(t) for the following two forces, assuming the particle is at rest at x=0 and t=0. (assume that Fo, b, and k are constants)
A daredevil jumps a canyon 9.6 m wide. To do so, he drives a car up a 18° incline. What minimum speed must he achieve to clear the canyon
Sinusoidal waves 5.00 cm in amplitude are to be transmitted along a string that has a linear mass density of 4.00 multiplied by 10-2 kg/m. find the highest frequency at which the source can operate
A projectile explodes at the top of its trajectory and breaks into two pieces with one piece having five times the mass of the other. The smaller piece returns to precisely the same point at which the projectile was launched. Where does the bigger pi..
a balloon contains 4.20 moles of a monatomic ideal gas. As energy is added to the system by heat, find work Wenv done by the gas in expanding the balloon
if car a is moving east at a speeed of 40mph realtive to the ground and car b is moving east at 30mph relative to the ground. what is the relative speed and direction of car b
By what factor must the mass of the ice be increased if the system is to have the same final temperature?
A small object begins a free-fall from a height of H = 87.0 m at t0 = 0 s. After %u03C4 = 2.20 s, At what height from the ground will the two objects first meet
This problem introduces the concept of tension. The instance is a rope, oriented vertically, that is being pulled from both ends. Let and (with u for up and d for down) represent the magnitude of the forces acting on the top and bottom of the rope..
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