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an object 075 cm tall is placed 120 cm to the left of a diverging lens f -800 cm a converging lens is placed 800 cm to
give the percent yield when 2816 g of co2 are formed from the reaction of 4000 moles of c8h18 with 8000 moles of o22
an electron moves through a uniform electric field e 231i 506j vm and a uniform magnetic field b 0381k t determine
iron 3 oxide and aluminum powder form an extremely violent reaction called thermite when burned together this is an
an automobile engine slows down from 4500 rpm to 1200 rpm in 25 s calculatea its angular acceleration assumed constantb
an old bottle of hcl was taken from the stockroom and a titration analysis was performed on it the bottle of this acid
a wheel 33cm in diameter accelerates uniformly from 240 rpm to 360 rpm in 65s how far will a point on the edge of the
the owner of a van installs a rear-window lens that has a focal length of -0300 m when the owner looks out through the
a 150 ml solution was obtained from the pond at gbc and analyzed for calcium content to do this an excess of potassium
a wheel of radius 15m rotates at a constant angular velocity a point at the edge of the wheel experiences centripetal
dinitrogen monoxide gas decomposes to form nitrogen gas and oxygen gas how many grams of oxygen are formed when 400 g
a truck can move up a road having a grade of 10-ft rise every 50-ft with a speed of 15 mih the resisting force is equal
a car is moving on a flat horizontal circular track of radius 120m the speed of the car is constant 15 ms the mass of
the capacity of batteries such as the typical aa alkaline battery is expressed in units of milliamp-hours mah an aa
an 800 khz radio signal is detected at a point 31 km distant from a transmitter tower the electric field amplitude of
the hcl concentration in a hyperacidic stomach is 003 m the volume of liquid in the stomach is 300 ml how many tablets
the molecular weight of a compound can be determined by proton nmr the nmr spectrum of an unknown compound revealed
the following chemical shifts in ppm were observed for a given molecule using a 120 mhz nmrch3 225ppm ch2 363ppmwhat is
a student plans to titrate 2500ml of a 0134m hno3 solution with a 0179m naoh solution calculate the volume of naohin ml
if 368 grams of fes2 is allowed to react with 220 grams of o2 according to the following unbalanced equation how many
ammonium nitrate decomposes to n2o and water at temperatures between 250c and 300c write a balanced chemical reaction
a solid sphere starts from rest at the upper end of the track as shown in figure below and rolls without slipping until
draw the product you expect from the reaction of r-2-bromooctane with ch3s- be sure to show
three pairs of parallel metal platesabc are connected as shown in the figure and a battery maintains a potential of