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a man stands on a scale inside an elevator at rest the scale reads 800 na determine what is the man massb the elevator
a bike and rider have a total mass equal to 200 kilogram the rider applies the brakes causing the bike to accelerate at
suppose an unknown hydrate acxh2o has a mass of 1555g before heating and a mass of 994g after heating define what is
a string trimmer is a tool for cutting weeds and grass it utilizes a length of nylon string that rotates about an axis
if liquid oxygen is stored as saturated liquid at its normal boiling point find what is the enthalpy change per mole of
explain a common industrial unit for expressing the concentration of hydrogen peroxide is to state the relative volume
water is well mixed in a 1m3 vessel a stirrer introduces 300w of power into the vessel the heat transfer from the tank
an object is placed 11 centimeter in front of a spherical refracting surface with a 27 centimeter radius of curvature
regard as the titration of 1000 ml of 0200 m acetic acid ka 18 10-5 by 0100 m koh compute the ph of the resulting
a toroid solenoid has a cross-sectional area of 0460 cm2 a mean radius of 115 cm and 1900 turns the space inside the
the capability of reaction to proceed quickly by sn1 or sn2 mechanisms often depends on the solvent used also group
a weightless ladder 70 meter long rests against a frictionless wall at an angle of 65 degree above the horizontal a 72
define in detail forecast the order of the four colored compounds explain which travels the furthest which one will
a car fuel tank is filled to the brim with 45 l 12 gal of gasoline at 10 degc instantly afterward the vehicle is parked
as of general understanding of separation on a silica gel coated tlc plate define what type of compound travels up the
a 12000n car travels at a speed of40 kmh northward along a street and an 8500 n sports car travels at a speed of 62 kmh
a wheel radius rotates at a uniform speed if a point on the rim of the wheel has a centripetal acceleration of 12 ms2
state the balanced net equations for the reactions that take place when 01 m solutions of cadmiumii nitrate and
a rotating cylinder about 16 kilometer in length and 80 kilometer in diameter is designed to be used as a space colony
state the equation which illustrates the strong electrolyte cano32s dissolving in water comprise states of matter s g l
a 1054 m times 144 m house is built on a 106-centimeter thick concrete slab determine the heat loss rate through the
define the adding up of sodium or potassium iodide catalyzes many sn2 reactions of alkyl chlorides or
a 1064 kilogram bowling ball at 0degc is dropped into a tub containing a mixture of water and ice a short time later
a freezer is used to freeze 10 l of water totally into ice the freezer and the water remain at a fix temperature of t
a system gains 2960 joule of heat at a constant pressure of 131times 105 pa and its internal energy increases by 4040