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A plane flies with an air velocity of 1000km/h (N40degreesE). The ground velocity is 1050km/h NE. What is the wind velocity?
The asymptotic wavelength
Gamma rays of photon energy 0.458 MeV are directed onto an aluminum target and are scattered in various directions by loosely bound electrons there. find the photon energy of the rays scattered in this direction
a computer monitor accelerates electrons and directs them to the screen in order to create an image.if the accelerating
Suppose biological cell membrane has a specific capacitance of ~1μF/cm^2. Calculate the capacitance of a typical cell with diameter of ~10 μm. Suppose the membrane potential is -60mV, calculate the amount of net charge kept inside the cell. Calcul..
An electron accelerates through a potential difference of 250 V.
the decomposition of n2o5 takes place in carbon tetrachloride at room temperature according to the equation2n2o5 soln
A device found at some amusement parks asks you to "test your personal force" by grasping two conducting bars, What voltage does the machine have to apply to the conducting bars to drive a current of 30.0 mA through your body
A 129-kg sculpture hangs from a horizontal rod that serves as a pivot about which the sculpture can oscillate. How far is the pivot from the sculpture's center of mass
A person who weighs 635 N steps onto aspring scale in the bathroom, and the spring compresses by0.75 cm. What is the spring constant? What is the weight of another person who compresses the springby 0.40 cm?
A particular guitar string is supposed to vibrate at 203 Hz, other than it is measured to actually vibrate at 208 Hz. By what percentage must the tension in the string be changed to get the frequency to the correct value.
The projection lens in a certain slide projector is a single thin lens. A slide 23.9 mm high is to be projected so that its image fills a screen 1.84 m high. Determine the focal length of the projection lens
Water flows from a 1/2 inch diameter pipe with a flow of 1m/sec. How many kg of water flow from the pipe in onesecond? How many gallons per day
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