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Assume that the mud ends up uniformly distributed over a surface area of the valley measuring 1.2 km x 1.2 km and that the mass of a cubic meter of mud is 1900 kg. What is the mass of the mud sittin
The A-string on a cello vibrates in its first normal mode with a frequency of 220 Hz. The vibrating segment is 65.0 cm long and has a mass of 1.40 g. (a) Find the tension in the string. (N) (b) Det
A personal computer, in contrast, uses 2.7 A of current at 120 V. With the energy used by the clothes dryer, how long (in hours) could you use this computer to "surf" the internet?
How long does the ball take to reach the ground?
A surface completely surrounds a +4.7 10-6 C charge. Find the electric flux through this surface when the surface is a sphere with a radius of 0.40 m, a sphere with a radius of 0.20 m, and a cube wi
A proton is shot from the negative disk toward the positive disk. What launch speed must the proton have to just barely reach the positive disk?
Around the tube the atmospheric pressure is PA = 101300.0 Pa. Water has a density of 1000.0 kg/m3. What is the density of the oil?
How far upstream or downstream from her starting point will she reach the opposite bank? (magnitude)
0.025m3 of oxygen at 150 kPa in a piston cylinder device expands polytropically with n = 1.2 to a volume of 0.25m3. What is the moving boundary work for this process in kJ? Is the work done on or by
He finally comes to rest 28.0below the level of the bridge. Calculate the spring stiffness constant and the unstretched length of the bungee cord.
Find the speed of the electron when it strikes the second plate. v= ______ m/s
Two 1.5 cm -diameter disks face each other, 2.0 mm apart. They are charged to 9.0 nC . Part A: What is the electric field strength between the disks?
Calculate the expectation value of the x position of a particle known to be in a state n = 3 of a 1D box of length L. What is the probability of the finding the particle between 0 and 0.25L?
A particle moves along the path whose equation is r = 6theta feet. If the angle theta = 2t^3 radians, determine the velocity of the particle when theta = 40degrees. Express your answer in polar vec
A suspension bridge is 54.0 m above the level base of a gorge. A stone is thrown or dropped from the bridge. At the location of the bridge, g has been measured to be 9.83 m/s2. In each of the follow
Sheena can row a boat at 2.88 mi/h in still water. She needs to cross a river that is 1.29 mi wide with a current flowing at 1.59 mi/h. Not having her calculator ready, she guesses that to go strai
A certain car is capable of accelerating at a rate of 0.59 m/s2. How long does it take for this car to go from a speed of 28 mi/h to a speed of 48 mi/h?
Perform the following experiment: The purpose of this experiment is to use a compass to detect the weak magnetic field that exists around a current-carrying conductor. Breadboard a circuit consistin
A particle moves along a vertical straight line with an acceleration of a = 4(v)^3/4 when t=1 sec. it's displacement x= 10 ft and its velocity v = 6 ft/sec. Calculate the displacement, velocity, an
A beam spring system has a mechanical energy by oscillating 1 Joule, with an amplitude of 10cm, and a maximum speed of 1.20m/s. Find (a) spring constant (b) the mass from the beam (c) the frequency
While driving on the freeway at 110 km/h , you pass a truck whose total length you estimate at 25 m A- .If it takes you, in the driver's seat, 5.3 to pass from the rear of the truck to its front, wh
However their reference manual states that the accepted value of free-fall acceleration is 9.81 m/s2. Find the percentage difference between the acceped value and the measure value. Show your work..
(a) What are the magnitude and direction of A + B? (b)What are the magnitude and direction of A - B? *directions counterclockwise from the +x-axis (c)What are the x- and y-components of B - A?
A copper wire has a circular cross section with a radius of 5.00 mm. The equation for drift velocity is given below. vd = I nqA