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a 190 -kg box is released on a 37 incline and accelerates down the incline at 030 ms2a find the friction force impeding
a compound forms between phosphorous and nitrogen if 685 grams of phosphorous completely reacts with 515 grams of
a solenoid 270 cm long and with a cross-sectional area of 0510cm2 contains 410 turns of wire and carries a current of
what is the percent yield of calcium sulfate when 8750 l of aluminum sulfate and 172 g of calcium phosphate has an
a rifle with a weight of 30 n fires a 30 g bullet with a speed of 210 msa find the recoil speed of the riflemsb if a
sample of tap water consists of water fluoride ions calcium ions and several other dissolved ions the ions are evenly
the diameter of a sphere is measured to be 694 ina find the radius of the sphere in centimetersb find the surface area
an object is placed 13 cm in front of a converging lens with a focal length of 1 cm carefully draw a ray diagram on a
if 2100 ml of 00950 n naoh solution is used to titrate 2875 ml of h2so3 to the first equivilance point what is the
an object is fired at 300 ms at an angle of 350 degrees from a vertical cliff that is h meters where h is unknown
a freight train has a mass of 15 times 107 kg if the locomotive can exert a constant pull of 79 times 105 n how long
draw a newman projection of cyclohexane looking along two c-c bonds that are separated by one
a uniforn electric field with a magnitude of 420nc pointing in the positive x- direction acts on an electron which is
1 if the half-life of a chemical rxn process were 500 minutes what is the value of k2 the half-life of a chemical rxn
what would be the ppm concn of 476 microg of nacl in 350 ml of solution what would be the ppm concn of sodium in the
you are standing on a sheet of ice that covers the football stadium parking lot in buffalo there is negligible friction
the position vectorr in meters of a particle moving in the x-y plane is giving by the following equation ri2t2-8t
1a what is the average velocity of nitrogen molecules at 24o cb at what temperature would oxygen molecules have the
a rifle bullet with a mass of 500g strikes and embeds itself in a block with a mass of 1995kg that rests on a
calculate how many ml of 0100 m naoh are needed to neutralize completely 320 ml of 00200 m hcl calculate the ph during
a uniform electric field of magnitude 435 nc pointing in the positive x-direction acts on an electron which is
a substance with the empirical formula c2hcl the 2 is a subscript has the molar mass of 18144 gmol find the molecular
a car travels around an unbanked highway curve radius 15 km at a constant speed of 25 ms what is the magnitude of the
calculate the ph of a solution made by adding 44 g of sodium acetate nach3coo to 23 g of acetic acid ch3cooh and
a spherical capacitor contains a charge of 340nc when connected to a potential difference of 250v if its plates are