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a certain source of soundwaves radiates uniformly in all directions at a distance of 17m from the source the intensity
a wooden raft has a mass of 55 kg when empty it floats in water density 100 kgm3 with 64 of its volume submerged what
if 1020g of khc8h4o4 20423gmol is completely neutralized with 0200 m koh what volume of potassium hydroxide is
an automobile engine takes in 4000 j of heat and performs 1100 j of mechanical work in each cyclea calculate the
nuclides below the valley of stability can become more stable through which of the following
electrons are injected into a chamber with a b field of 10t at a velocity of 107 ms the electrons will go into
if a bungee cord is stretched horizontally to a length of 26 the tension in the cord is 19 a transverse pulse on the
calculate the potential of the following two half- cells that are connected by a salt bridge a galvanic cell with two
a charge 500 is placed at the origin of an xy-coordinate system and a charge -300is placed on the positive axis at
an experiment shows that a 248ml gas sample has a mass of 0433g at a pressure of 745 mmhg and a temperature of 28
a harvest mouse can detect sounds as quiet as -10 suppose you are sitting in a field on a very quiet day while a
a passenger walks from one side of a ferry to the other as it approaches a dockpassengers velocity is 150 ms due north
a train traveling at v0 280 ms begins to brake by applying a velocity-dependent instantaneous acceleration av vu ms2
a spectrophotometer has a meter that gives a reading directly proportional to the amount of light reaching the detector
a spaceship in distress sends out two escape pods in opposite directions one travels at a speed v1 060c in one
calculate the potential of a zinc electrode immersed in 00100m in znnh34 2 and 025m in nh3 b4 for znnh34 2 is
how many seconds would it take to deposit 0500 g of ni metal on an electrode by passing a 300 amp current through a
a particle undergoes three successive displacements in a plane as follows 350 m southwest 450 m east and 600 m in a
how many grams of cobalt metal can be formed if a 200 amp current is passed through a solution of co2 for a period of
an electron is at the origin and an ion with charge 5 e is at x16 nm find a point where the electric field is
what is the minimum voltage needed to produce a reaction in the electrolysis of copperii sulfate using inert electrodes
the electric field on the axis of a uniformly charged ring has magnitude 360 knc at a point 56cm from the ring center
a charge of -10 microc is located at the origin a second charge of 26 microc is located at x 0 y 01 m and a third
consider the titration of 300 of 0035 with 0030 calculate the after the following volumes of titrant have been
berylliumii forms a complex with acetylacetone 1662gmol calculate the molar absorptivity of the complex given that a