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What element has the highest electro negativity? The second highest? A covalent bond in which the electron pair is unequally shared is called by what name? Could a molecule composed of two atoms joined by a polar covalent bond ever be no polar? Explain.
A 0.520 kg block of wood hangs from the ceiling by a string, and a 0.0700 kg wad of putty is thrown straight upward, How high does the putty-block system rise above the original position of the block
The human body can exhibit a wide range of resistances to current depending on the path of the current, Find how much voltage is required to cause possible heart fibrillation in a man, which corresponds to 490 mA of direct current
Translate the given verbal statement into a differential equation using appropriate mathematical notation. Write the equation in a form so that the constant of proportionality is positive Identify every letter that appears in the equation. A basic..
A 200MW laser pulse is focused with a lens to a diameter of 1.5 mu m. What is the laser beam's electric field amplitude at the focal point
Sheena pulls a sled along a snowy path on level ground with a maple syrup barrel, 26 kg, on the sled. find the tension between the barrel and Sheena's hand.
A particle of mass m is placed on a frictionless horizontal table and attached by two identical massless spicral springs of natural length b and stiffness k, to two fixed points A and B on the table.
A battery with an emf of 9.00 V has an internal resistance r. When connected to aresistor R, the terminal voltage is 8.80 V and the current is 0.11A. When a second identical battery is added in series and the externalresistor is R = 15 Ohms what i..
A 128g gas sample was filled in a 50.0L closed container. At 25 degrees Celsius, the pressure inside the container was measured to be 1.95 atm. What is the molar mass of the gas
You are designing a roller coaster for a new amusement park on the Moon. You envision a loop with a radius of 35 meters in your track. What speed at the top of the loop would a car need to have
1. you are hired by an industry that owns a building with a floor area of 6 m by 10 m and a ceiling height of 4 m. the
Three blocks, each having a mass of 1.21 kg, are connected by rigid rods of negligible mass and are supported by a frictionless surface. Forces F1 and F2, of magnitude 4.95 N and 11.6 N respectively, find The magnitude of the force applied by the r..
Two 10.0 kg masses are hanging from the ceiling of an elevator that is accelerating upwawrd at 2.00 m/s. What is the tension in each rope
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