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A bullet is fired through a board 12 cm thick in such a way that the bullet's line of motion is perpendicular to the face of the board. If the initial speed of the bullet is .4 km/s and it emerges from the other side of the board with a speed of .3 km/s, find a) the acceleration (assuming it to be constant) of the bullet as it passes through the board and b) the total time the bullet is in contact with the board. c) If the same bullet were fired at the same initial speed into a 32 cm thick board wherein it experiences the same acceleration as before, how fast would it be traveling when it emerged?
what is the final temperature of the water
ag has a density 10.5 g cm3.a graduated cylinder has 28.0 ml of h2o. determine the new water level after 35.6 grams of
need to neutralize the NH2 and stanilize the polyamide. I just want to clarigy we we need to wash it in HCl after interfacial polymerization.
what is the geometry of a carbon atom involved in a triple
In the laboratory a student finds that it takes 33.1 Joules to increase the temperature of 11.5 grams of solid lead from 20.3 to 39.9 degrees Celsius.
Adipic Acid (H2C6H8O4) is a carboxylic acid containing compound of industrial importance, notably due to its use during fabrication of nylon. Adipic acid can be titrated using NaOh by the following reaction
1.27 g sample of a gaseous oxide of nitrogen inhabit a volume of 1.07 L at 25°C and 737 mmHg. Explain what is the most likely formula for the gas
Homologous recombination is initiated
A solution containing a buffer has an initial pH of 8.78. If a student adds 5 drops of NaOH(aq) to this solution, what would be a reasonable pH.
Problem- A certain gas is present in a 11.0L cylinder at 2.0atm pressure. If the pressure is increased to 4.0atm the volume of the gas decreases to 5.5L . Find the two constants ki, the initial value of k, and kf, the final value of k, to verify w..
Write the symbol for an atom of element X. Complete the table below to show the number of sub-atomic particles in both an atom and an ion of potassium. Which element is most likely to be in Group VI? Which element will form an ion of the type X2+. Wh..
A gaseous fuel mixture stored at 749 and 298 contains only methane (CH_4) and propane (C_3H_8) . When 11.3 of this fuel mixture is burned, it produces 776 of heat. What is the mole fraction of methane in the mixture
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