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when backpacking in the wilderness hikers often boil water to sterilize it for drinking suppose that you are planning a
a pail of water is rotated in a vertical circle of radius1ma what two external forcces act on the water in the pailb
the buffer containing human blood is carbonic acid and bicarbonate ion in blood plasma are 0024m of bicarbonate ion and
give a brief explanation of the physics behind combustion what happens on a molecularchemical scale and approximately
to a buffer solution containing 0100m of hno2 and 0150m of kno2 with calculations determine if the added amount of the
ball a moving to the east collide with ball b and c with are at rest after collision ball b went northe with speed of 3
calculate the rms average speed of n2o atoms or molecules at 125 degrees celsius use r 8314 kg-m2k-s2-mol for the
there is a curling disc of mass m 20dkg at rest on the iceanother disc of the same kind collides head-on b0 into it at
calculate the molar mass of a gas that has a density of 0605 gl at 229 degrees celsius and 499 torr use r 00821
a mass of 10-kg accelerates along a straight line from a speedof 54 kmhr to 108 kmhr in 5 minutesa find the force
how can calculate the percent yield if i had the mass of the beaker the product 49073 and the mass of the beaker
a railroad car of mass 250 104 kg is moving with aspeed of 409 ms itcollides and couples with three other coupled
question heating elemental cesium and platinum together for several days at 973 k gives a dark red ionic compound that
two solid spheres simultaneously start rolling from rest downan incline one sphere has twice the radius and twice the
which should experience the greater effective nuclear charge a 2p electron in oxygen or a 2p electron in
the electric field of a sinusoidal electromagnetic wave obeysthe equation e - 375 vmsin 597 1015rads t 199
what must the celsius temperature be if 20 moles of a gas in a 40 l steel container has a measured pressure of 100
give an example of a ketone which will produce a positive iodoform test and another ketone w the same of carbon atoms
to stop a gas leak from gas well the gas was deliberately set on fire until leak could be stopped what pollutant
a 60 kg suitcase is being pulled along the ground by means of a strap which exerts a force of 20n at an angle of 30
a 175 g mass of ice at 273 k is added to 125 g of h2ol at 325 k at constant pressure is the final state of the system
an object is being acted upon by 3 forces and moves with a constant velocity one force is 40n along the x axis the
two coils are wound around the same cylindricalform when the current in the first coil is decreasing at a rate of-0240
a light string can support a stationary hanging load of270 kg before breaking a280 kg object attached to the
a 911-g piece of zinc metal is dissolved in 75-ml of 35-m hcl and hydrogen gas is evolved the exact amount of 50-m naoh