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an ocean wave has a wavelength of 4000 meters and a frequency of 700 waves per minute what is this waves velocity in
when four people with a combinedmass of 340kg sit down in a car they findthat the car drops 050cm lower on its springs
a swimming pool is 2615 yards long and 4004 feet wide the pool is filled with water from a hose that has a flow rate of
a 8750-gram sample of a hydrocarbon is burned in a furnace and 27456 grams of co2 and 11239 grams of h2o are collected
a rocket of mass 45 x 105 kg is accelerating straightup its engines produce an upward thrust of 75 x106 n and the air
balance the following equation in standard form and determine the sum of the coefficients feos o2g --gt fe
the water skier has a mass of 73 kg find the magnitude of the netforce acting on the skier whena she is accelerating
determine the mass of substance c that will form when 450 grams of substance a reacts with 230 grams of substance b
a pile driver is a device used to drive stakes into the groundwhile building a fence adam drops a pile of mass 3000kg
marisa does 32j of work to lower the window shade in herbedroom a distance of 80m how much force must marissa exert
at target prctice scott holds his bow and pulls the arrowback a distance of 030m by exerting an average force of 4000n
a string is 590cm long and has a mass of 300 ga wave travels at 495ms along this string a secondstring has the same
one gram of water changes from liquid to solid at a constantpressure of 100 atm and a constant temperature of 0degc in
give a nanoscale interpretation of the fact that at the melting point the density of solid mercury is greater than the
one of the most efficient engines ever built is a coal-fired steamturbine in the ohio valley driving an electric
the total number of neutrons in a diatomic chlorine molecule made up of one atom of ci-35 and one atom of ci-37
an electron approaches a potential barrier10 ev high and 030 nm wide if the electron has a 20 percentprobability of
the energy absorbed by an engine is seven times greater than the work it performsa what is its thermal efficiencyb what
1 quantum dots also known as nanocrystals are a special class of materials known as semiconductors which are crystals
a copper ball with a radius of 11 cm is heated until its diameter has increasedby 023 mm assuming a roomtemperature of
a cylinderical shaped metal rod is used to conduct heat whenthe temperature at one end is 100 degree celsius and at the
a tank contains benzene which has index of refraction150 a dime is on the botton of the tank when viewed atnormal
a baseball player friend of yours wants to determine his pitching speed you have him stand on a ledge and throw the
when an objectis placed 132cm from diverging thin lens itsimage is found to be 66 cm from the lens the lens is removed