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if 145 ml of 150 m potassium dichromate is added to a 50 ml volumetric flask and diluted to the mark what is the
a block of mass 250 kg is pushed 220m along a frictionless horizontal table by a constant 180 n force directed 250deg
a 1076 l sample of hf gas at 220 degrees c and 0601 atm pressure was dissolved in enough water to make 505 ml of
for lunch you and your friends decide to stopat the nearest deli and have a sandwich made fresh for you with0350 kgof
a long and narrow rectangular loop of wire of width 0080 m ismoving toward the bottom of the screen with a speed of
a 4 kg particle moves at a constant speed of 25 ms around a circle of radius 2 mwhat is its angular momentum about the
a 660 kg person throwsa 00400 kg snowball forward with a ground speed of 320 ms a second person with a massof 590 kg
the equilibrium constant k for a certain reaction was measured as a function of temperature in kelvin a plot of lnk
a convex lens is held over a piece of paper outdoors on asunny day when the paper is held 26 rm cm below the lens the
based on electronegativity differences what do you think is the identity of the polyatomic anion
at a playground a 22 rm kg child plays on a slide that drops through a heightof 25 rm m the child starts at rest at the
within cells small organelles containing newly synthesized proteins are transported along microtubules by tiny
marble statuses erode when exposed to acidic precipitation give a brief chemical explanation for this
a thin film of polystyrene is used as an antireflective coating for fabulite known as the substrate the index of
two people start at the same place and walk around a circular lakein opposite directions one walks with an angular
weightless bar is 18 meters upward forces of 165n at 3 meters from left and one of 310n at 14 meters from left
how many grams of ammonium chloride pka924 58491 gmol should be added to 500 ml of 01060 m ammonia to make a buffer
an archer shoots arrows at a target some of the arrows stick inthe target while others bounce off assuming that the
in an experiment designed to measure the speed of light a laser is aimed at a mirror that is 580 km due north a
a 14-kg 15-cm-diameter solid sphere is rotatingabout its diameter at 70 revmina what is its kinetic energyb if an
the energy from radiation can be used to cause the rupture of chemical bonds a minimum energy of 941 is required to
an aluminum baseball bat has a length of 0695 m at a temperature of 110degc when the temperature of the bat is raised
a small mirror is attached to a vertical wall and it hangs adistance of 182 m above the floor the mirror is facing due
a worker drags a 150lb crate across the floor by pulling on a rope inclined at 17degrees above the horizontal the
the moon revolves aound the earth in 273 days in nearly circular orbit with a radius of 38108 m assuming the moons