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2a 3b ------gt c 2da determine the rate of disappearance of a when a50 m and b 25mb determine the rate of
the energy given off by 300 grams of an alloy as it cools through 50 degrees celcius raises the temperature of 300
a student is reading a lecture written on a blackboard thelenses in her eyes have a refractive power of 6220 diopters
in a constant-pressure calorimetry experiment a reaction gives off 223kj of heat the calorimeter contains 150g of water
an oceanliner is heading due north with a speed of 85 ms relative to the water a small sailboat is heading 45 degrees
a ball is rolled off a table with an initial horizontalbelocity of 18 ms if the table is 85 cm high and the ball
rivoflavin is one of the b vitamins it is also known as vitamin b6 and is made of carbon hydrogen and nitrogen and
a sphere with mass 25 kg and a radius of 50 meter startsrotating from rest and has a constant angular acceleration of
the active ingredient in pepto-bismol is bismuth subsalicylate c7h5bio4 analysis of a 1500-g sample of pepto-bismol
an electron charge q -16x10-19 c and mass m 91x10-31 moving at speed v enters a region where a uniform magnetic field
two billiard balls of equal mass move at right angles and meetat the origin of an xy cordinate system ball a is moving
a coin is located 200 cm to the leftof a converging lens f 160 cm a second identicallens is placed to the right of the
a proton mass 17times10-27 kg charge 16times10-19 c travelling with speed 106 ms enters a region of space containing a
an suv of mass 180 103 kg is traveling eastboundat 15ms when it collides witha compact car mass 900 kg traveling
using cylinders 3 cm in diameter and 050 m long students constructed a musical instrument by placing liquid in the
during winter a baseball player works out with a 50-kgpitching machine the ground is covered with a thin layer of iceso
a rock of mass 43 kg accidentally breaks loose from the edge of a cliff and falls straight down the magnitude of the
a 10 kg block of aluminum isheated at atmospheric pressure so that its temperature increasesfrom 22degc to 38degca find
a hollow aluminum cylinder 210cm deep has an internal capacity of 2000 l at 150degc it is completely filled
starting from rest a disk rotates about its central axis withconstant angular acceleration in 80s it rotates 10 rada
a hang glider and its pilot have a total mass equal to 120kgwhile executing a 360 degree turn the glider moves in a
if i hit a trampoline with a velocity of 388 ms at 534 degrees above the horizontal and i leave the trampoline at an
a hammer strikes one end of a thick iron rail of length 85m a microphone located at the opposite end of the rail
as a baseball is being caught its speed goes from 30 to 0msin about 005s its mass is 145kga what is the baseballs
eight books each 43 cm thick with mass 17kg lie flat on atable how much work is required to stack them one on top of