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a certain athlete consistently throws a javelin at a speed of 28meter per second find his best distance in meter
compute the final temperature of a mixture of 2000 g of ice initially at -15 degrees celsius and 3690 g of water
a 100 kg person is 34 three fourths of the way up a 10 meter ladder that is resting against a smooth friction less wall
define whether each of the following aqueous solutions would be acidic basic or neutral include the suitable net-ionic
a ball is whirled around in a horizontal circle of radius 04m its centripetal acceleration is 90 ms2 evaluate what is
a simple pendulum is made up of a 20 kg mass suspended on a thin aluminum wire the pendulum has a period of exactly 40
precisely 143 ml of water at 300 degrees celsius are additional to a hot iron skillet all of the water is rehabilitated
a planetary probe is designed to drop the vehicles instrument package from a height of 20 meters above the planets
define an enzyme was assayed at an initial substrate concentration of 2x10-5 m in six minutes half of the substrate had
compute the change in energy necessary in making 550 ml of water from its elements under standard conditionsthe
871 test of an unknown acid requires 329 ml of a 187 mbarium hydroxide solution for neutralization assuming the acid
use principles recognized to arrange the following atoms in order of decreasing value of the first ionization energy sr
the standard enthalpy of atomization of an element is the energy necessary to convert one mole of an element in its
explain the following species are isoelectronic with the noble gas krypton arrange them in order of reduce radius rb y3
find out the minimum concentration of the precipitating agent on the right to cause precipitation of the action from
liquids a and b form an ideal solution define a mixture of the vapors which is 40 mole in a is contained in a piston
define whether each of the following aqueous solutions would be acidic basic or neutral and explain comprise the
define the gasoline tank of an automobile contains 81 kg of gasoline state the gasoline combines with 3240 kg of oxygen
explain when heated a 3 g sample of ammonium perchlorate nh4clo4 ignites and burns in the absence of any other material
sucrose c12h22o11 can be assorted with potassium nitrate to form an amateur rocket propellant called rocket candy which
the alpha-linolenic acid is one of a large group of fatty acids that are found in fish oil walnuts and canola seeds
explain radio waves travel at the speed of light 300x108 ms if you were to transmit a question to an astronaut on the
for each salt state the net-ionic equations for the interactions of each ion with water state nr if no reaction occurs
compute the theoretical amount of cacl2 that would be needed to change the temperature of 50ml of water from room
ions with a single electron such as he li2 and be3 are explain by the h atom wave functions with za0 substituted for