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A steel cable has a cross-sectional area 4.05 Ã 10-3 m2 and is kept under a tension of 3.18 Ã 104 N. The density of steel is 7860 kg/m3. Note that this value is not the linear density of the cable. At what speed does a transverse wave move along the cable?
A car is hauling a 92 kilogram trailer, to which it is connected by a spring. The spring constant is 2300 N/m. The car accelerates with an acceleration of 0.30 m/s2. Obtain how much the spring stenches
Water flows into a bucket at the rate of 0.0005 m^3 / s. Thebuckets has a hole in the bottom of area 2.5 square cm. How high above the bottom of the bucket will the water rise
A particle has an acceleration of 6.19 m/s^2 for 0.350 s . At the end of this time the particle's velocity is 9.26 m/s What was the particle's initial velocity?
Three identical blocks connected by ideal strings are being pulled along a horizontal frictionless surface by a horizontal force F_vec The magnitude of the tension in the string between blocks B and C is T = 3.00{\rm N} . Assume that each block ha..
A parallel-plate capacitor with 2.0 mm plate spacing has circular plates and holds a charge of +/- 3uC on each plate, What is the radius of the plates
a square loop of dimensions 2a x 2a lies in the xy plane with its center at the origin and sides parallel to the x and
A bat moving at 3.4 m/s is chasing a flying insect. The bat emits a 49 kHz chirp and receives back an echo at 49.44 kHz. At what speed is the bat gaining on its prey
You and a friend have been given the task of designing a display for the Physics building that will demonstrate the strength of the electric force, calculate the necessary amount of charge on the marble for a reasonable ramp angle of 15 degrees
To focus a camera on objects at dissimilar distances, the converging lens is moved toward or away from the image sensor, so a sharp image always falls on the sensor. A camera with a telephoto lens (f=200.00mm) is to be focused on an object located fi..
A truck horn emits a sound with a frequency of 246 Hz. The truck is moving on a straight road with a constant speed. what is the speed of the truck
The earth's magnetic field, with a magnetic dipole moment of 8.5×1022Am2, is generated by currents within the molten iron of the earth's outer core. What is the current in the current loop
Element A decays into element B. The half-life for this decay is 1000 years. The atomic weight of both elements is approximately 10 u. What is the decay constant? If the original A/B ratio is .9, but a sample has a ratio of .2, how old is the sample..
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