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dirk pushes on a packing box with a horizontal force of 520 n as he slides it along the floor the average friction
a 30 mw laser produces a beam of light with a diameter of 26 mm shines its light on a perfectly absorbing surfacewhat
a string with both ends held fixed is vibrating in its third harmonic the waves have a speed of 186 ms and a frequency
1 mole of liquid water at 0degc and 1 atm pressure is irreversibly converted into steam at 200degc and 3 atm assume the
graph and label the following two functions fx 2 - 9 gx 2 9 1 describe the domain and range for each of these
a copper storage tank containing dilute h2so4 at ph 01 is blanketed with hydrogen at 1 atm calculate the maximum cu2
two equally charged spheres are located 2 cm away from each other when they are released they accelerate at 643 ms2 if
zn is immersed in a solution of cucl2 what is the reaction and at what activity ratio of zn2 cu 2 will the reaction
one string of a certain musical instrument is 800cm long and has a mass of 872 g it is being played in a room where the
each of three tuning forks a b and c has a slightly different frequency when a and b are sounded together they produce
the emf of a cell made of a zn anode and hydrogen cathode immersed in 05m zncl2 is 0590v what is the ph of the
a 37 l volume of ideal neon gas monatomic is at a pressure of 29 atmospheres and a temperature of 330 k the atomic mass
what is the ph of a solution formed by dissolving 0100 mol of an acid with a ka of 1750x10 to the -5th and 0200 mol of
a ball is thrown horizontally from an elevation of 1400 m above ground with a speed of 200ms where is the ball after
a small ball is attached to one end of a spring that has an unstrained length of 0179 m the spring is held by the other
start with a liquid labeled 2000ml hcl aq you are able to reach equilibrium at ph 7000 through titration by adding 1425
in a large centrifuge used for training pilots and astronauts a small chamber is fixed at the end of a rigid arm that
a light ray is incident from air with n 1 on a material with n 15 as shown in the diagram below here 38degwhat is
a plank 200 cm thick and 130 cm wide is firmly attached to the railing of a ship by clamps so that the rest of the
you want to double the resonance angular frequency of a series r-l-c circuit by changing only the pertinent circuit
margaret walks to the store using the following path 500 miles west 200 miles north 300 miles east what is her total
a 20 l-reaction flask initially contains 017 mol co 015 mol h2 and 010 mol ch3oh methanol if this mixture is brought in
a 58 kw radio station broadcasts its signal uniformly in all directionsa what is the average intensity of its signal at
a loudspeaker is generating sound in a room at a certain point the sound waves coming directly from the speaker without
a vessel originally contained 0240 mol iodine monobromide ibr 00016 mol i2 and 00014 mol br2i2g br2g 2 ibrgthe