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a string that is under 470n of tension has linear density 580gm a sinusodial wave with amplitude 270cm and wavelength
a block of mass m 210 kg slides down a 300deg incline which is 360 m high at the bottom it strikes a block of mass m
two tugboats pull a disabled supertanker each tug exerts a constant force of 220times106 n one at an angle 120 west of
calculate the change in ph when 800ml of 0100m hclaq is added to 1000ml of a buffer solution that is 0100m in nh3aq and
a car moving with an initial speed v collides with a second stationary car that is one-third as massive after the
determine the molar mass of chloroform gas if a sample weighing 0389 g is collected in a flask with a volume of 102 cm3
a 70kg skateboarder comes over the top of a hill at 60ms and reaches 12ms at the bottom find the total work done on the
you slide a box of books at constant speed up a 30 degree ramp applying a force of 170n directed up the slope the
a mixture of he and ne at a total pressure of 095 atm is found to contain 032 mol of he and 056 mol of ne the partial
in a molecule of dihyroxyacetone phosphate what is the oxidation state of carbon number
a 1 kg mass initially at rest compresses a spring spring constant 2500 nm by 02 m and is released the mass slides along
what is the ph of aqueous solution consisting of 0006m of acetic acid and 0008m of sodium
a gas sample has a volume of 450 l when the temperature is 28 oc and the pressure is 100 atm what will be the new
a hockey puck is swung at the end of a very slight 30 cm long string in a horizontal circle if the speed of the puck is
in basic solution cro42- oxidizes hsno2- to hsno3- and is reduced to cro2- write the balanced net ionic equation for
balance the following formula unit equation what is the sum of all of the coefficients do not forget coefficients of
a 765 kg car is being pushed along a flat parking lot at a constant speed of 198 ms the coefficient of friction between
in the first 31 seconds of a bobsled run the 45 kg sled is pushed until it reaches a speed of 114 ms the flat surface
a 500 m long rigid beam with a mass of 1100 kg is supported at each end a 550 kg student stands on the beam 140 m from
a 650 kg skier initially at rest begins to slide down at a 100 degree slope if the hill is 30m long and the coefficient
calculate the molarity of a naoh solution if 3542 ml of this naoh solution is required to titrate 07566 g of khp
what is the molarity of a potassium hydroxide solution if 3865 ml of the koh solution is required to titrate 2584 ml of
a tennis player receives a shot with the ball 0060 0 kg traveling horizontally at 500 ms and returns the shot with the
an explosion breaks an object into two pieces one of which has 15 times the mass of the other if 7500 j were released
one force acting on a machine part is f - 500 n i hat 400 n j hat the vector from the origin to the point where the