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Q. A cord of length 1.50 m is fixed at both ends. Its mass per unit length is 1.20 g/m and the tension is 12N. What is the frequency of the fundamental oscillation?
Q. A 25 kg trunk strikes the ground with a speed of 12.5m/s. if no energy is lost from air resistance, what is the height from which trunk fell?
For a damped oscillator with a mass of 180 g, a spring constant 58 N/m and a damping coefficient of 60g/s, what is the ratio of the amplitude of damped oscillations to the initial amplitude at the end of 26 cycles.
Kieran takes off down a 50m high, 10° slope on his jet-powered skis. The skis have a thrust of 320 N. The combined mass of skis and Kieran is 50 kg (the fuel mass is negligible). Kieran's speed at the bottom is 40 m/s. What is the coefficient of k..
A piece of balsa wood with density 0.50g/cm^3 is released under water. What is the initial acceleration?? Repeat for a piece of maple with density 0.760 g/cm^3? Repeat for a ping-pong ball with the average density of 0.127 g/cm^3.
After being accelerated to a speed of 1.26×105 m/s, the particle enters a uniform magnetic field of strength 2.00 T and travels in a circle of radius 35.0 cm (determined by observing where it hits the screen). The results of this experiment allow one..
Two charged balls are 20.0 cm apart. They are moved, and force on each of them is tripled. How far apart are they now.
Find the rotational frequency of the wheel.
Discover the magnitude of acceleration
A lighthouse that rises h1 = 43.6 ft above the surface of the water sits on a rocky cliff that extends $d$ = 20.0 ft from its base, as shown in the figure below. A sailor on the deck of a ship sights the top of lighthouse at an angle of $theta$ = 29...
Two wires are tied to the 500 sphere. The sphere revolves in a horiIzontal circle at a constant speed of 6.8.
A hollow cylinder of radius and height has a total charge uniformly distributed over its surface. The axis of the cylinder coincides with the z axis, and cylinder is centered at the origin.
What is the speed of crate hit ground
Suppose a constant ratio of 13.60 counts per minute per gram of living matter. A sample of a petrified tree was found to give 1.8 counts per minute per gram. How old is the tree.
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