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If the frequency is variable and the length of the closed (at both ends) tube is fixed at 45 cm, sketch the plastic tube showing the position of the nodes and anti-nodes for the three lowest resonant.
a steel cable of diameter 3.0 cm supports a load of 2.0kN. what is the fractional length increase of the cable compared with the length when there is no load if Y=2.0 x 10^11 Pa
A ball with radius r1 and mass m1 is attached by a rod of length L to a second ball with radius r2 and mass m2. Where is the system's center of gravity
a 250 kg merry-go-round is a solid disc with a radius of 1m when a 40 kg child sits at the center the angular speed is 6 rev/s
A jet boat pumps high-velocity water horizontally out the rear to provide forward thrust. A 1500-lb jet boat pumps 25.0 gal/s of water while traveling at 30.00 mph. The water exits the rear of the boat with a velocity of 70 mph.
A camera has a lens with a focal length of 29.4 cm. When an object is placed 3.95 meters away is being photographed, how far from the film should the lens be placed
A 4.0 uF capacitor is initially uncharged and connnected in series with a 4.0 kQ reisitor. How long will it take for the capacitor to reach one fourth of this maximum charge
An 900 kg purple pickup truck tows a small 200 kg trailer using a relatively lightweight tow rope as shown in the animation. What is magnitude of the net force on the trailer
A simple model of a rubber band is a one-dimensional horizontal chain consisting of N linked segments ??Each segment can be in one of two possible states: horizontal, with length a, or vertical, with length 0. The rubber band is in thermal equilibriu..
An ostrich lays the largest bird egg. A typical diameter for an ostrich egg at its widest part is 12 cm. What is the tangential speed of that part of the shell
A crude model of the human vocal tract treats it as a pipe closed at one end. Find the effective length of the vocal tract in a person whose fundamental tone is 550Hz . Sound speed in air at body temperature is 354 m/s.
Take element Z = 69 from the periodic table. Ionize it 68 times so that there is only one electron left orbiting around the nucleus. What is the ground state energy of the electron
find the ratio of vb to vr, where vr is defined above and vb is the boats speed with respect to the water.
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