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The ionic compound NaBr is soluble in water. Calculate the osmotic pressure (in atm) generated when 8.56 grams of sodium bromide are dissolved in 94.1 mL of an aqueous solution at 298 K. The van't Hoff factor for NaBr in this solution is 1.73.
Two loudspeakers are placed on a stage 5.4 m apart and are radiating the same frequency, in phase. Calculate the frequency of the sound
After hitting the wall, the ball is moving to the left at -28 i m/s. If the collision lasts .15s, what was the horizontal force exerted by the wall on the ball during impact
A machine has an 650 g steel shuttle that is pulled along a square steel rail by an elastic cord (see figure below). The shuttle is released when the elastic cord has 16 N tension at a 45° angle
A 66 kg solid sphere with a 14 cm radius is suspended by a vertical wire. What is the period of the oscillations
A roadway for stunt drivers is designed for racecars moving at a speed of 88 m/s. A curved section of the roadway is a circular arc of 550 m radius. At what angle is the roadway banked
Consider the crates in the figure where m1 = 45 kg and m2 = 12 kg. Assume that there is no friction between m1 and the table, Write Newton's second law for motion along both coordinate directions
A 2.10kg snowball is fired from a cliff 8.55 m high with an initial velocity of 11.90 m/s, directed 47.0° above the horizontal. (a) Using energy techniques, find speed of the snowball as it reaches the ground below the cliff. What is that speed (b) i..
Two balls of identical mass of 0.151 kg and with identical charges placed on them hang from the ceiling on identical strings of lengths 1.510 m, what is the charge on each ball
The vector A s 3.50cm long and is directed into this page, In the right-handed coordinate system, where the +x-axis directed to the right, the +y-axis toward the top of the page
a rocket is moving through empty space in a straight line with constant speed. it is far from gravitational effect of
a bicycle wheel with radius 35 cm has 73 charges 1.0 microc each spaced at regular intervals along its edge. a flea
A cycle receives 500 Btu of heat at 1000°F and rejects 200 Btu of heat at 200°F. There is work input of 275 Btu and work output of 575 Btu. Compute the cycle efficiency
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