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1. An iron vat is 11 m long at room temperature (20°C). How much longer is it when it contains boiling water at 1 atm pressure?
2. An aluminum wing on a passenger jet is 40 m long when its temperature is 21°C.At what temperature would the wing be 2 cm (0.02 m) shorter?
What Hall voltage is produced by a 0.240 T field applied across a 2.60 cm diameter aorta when blood velocity is 57.0 cm/s
two forces f1 and f2 are acting on a mass m6.0 kg. the force f1 5.0i 7.0j 2.0k in n. the acceleration of the mass is
A slide projector needs to create a 99.0 -high image of a 2.00 -tall slide. The screen is 290 from the slide. What focal length does the lens need? Assume that it is a thin lens.
The objective lens of a telescope is a symmetric glass lens with 100cm radii of curvature. The eyepiece lens is also a symmetric glass lens. What are the radii of curvature of the eyepiece lens
A rifle is aimed horizontally toward the center of a target 0.10 kilometer away, but the bullet strikes 10 centimeter below the center. Find the time it takes for the bullet to strike the target
A horizontal platform the shape of a circular disk rotates in a horizontal plane about a frictionless vertical axis by an initial angular speed ?A dog (mass m) is initially riding the merry-go-round at its rim, however then slowly walks toward the ce..
Estimate the angle of incline by assuming that all of the increased power output goes into overcoming the force of gravity.
A 5.00-m beam is hanged horizontally about its ends by two very light cables A and B as shown in Fig. 4. The angles these cables make by the horizontal ceiling are shown, and the tension in cable A is measured to be 875 N. Discover: (a) the tension i..
Skip text editor options A parallel plate capacitor has an area A=10 m2 and a separation of 1Ã-10-4m. How much charge is stored on the capacitor
A standing wave in a pipe with both ends open has a frequency of 206. Hz. The next higher harmonic has a frequency of 309. Hz. How long is the pipe
A 15 kg block is accelerated at 2.0 m/s2 up a frictionless plane inclined at 5.0° to the horizontal, with the speed increasing from 10 m/s to 24 m/s. What is the change in the block's mechanical energy
Suppose that a small incandescent light bulb (R=2.88 kilo ohms) is connected to a standard European household AC electrical socket (240.-V rms voltage and 50.0 Hz frequency). find the average power dissipated by the light bulb
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