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a 280g wood block is firmly attached to a very lighthorizontal spring the block can slide along a table
if 1950g of cacl2 are dissolved in enough water to give 250ml of solution what will be the molar concentration if the
a proton has an initial speed of 40105 msa what potential difference is required to bring the proton to restb what
a physics major is working to pay his college tuition byperforming in a traveling carnival he rides a motorcycleinside
if the cylinder is full of air at 72 c and 0980 atm how many moles of o2 are present the mole fraction of o2 in dry
a concave spherical mirror has a radius of curvature of 072 m an object placed in front ofthe mirror is 030 m tall find
a butterfly fliest from the top of a tree in the center of a garden to rest on top of a red flower at the gardens edge
a 3730-nf parallel plate capacitor is connected to a 214-v battery and chargeda what is the charge q on the positive
write a balanced chemical equation for the reaction between mno4- and i - in basic solution the skeleton ionic reaction
a uniform metal ball of mass 31g and radius 14cm rollsdownwithout slipping a slope of height 32cm from rest find its
a generator of frequency 2500 hzdrives a series rlc circuit with an emf amplitude of 120v the resistance is 31 the
does anyone know what the reactivity order is when the alkyl halides undergo hydrolysis by the sn1 mechanisms and sn2
a 600x microscope uses a 035 cm focal lengthobjective lens if the tube length is 160 cm what is the focal length of the
a compound contains only carbon hydrogen and oxygen combustion of 5134 g of the compound yields 7526 g of co2 and 3081
the overall magnification of anstronomical telescope is desired to be 24x if an objectiveof 75cm focal lenght is used
1 the distance between earth and its moon is 384 x 108 meters earths mass ism 59742 x 1024 kg and the mass of the moon
periodicity 240 element m reacts with oxygen to form an oxide with the formula mo when mo is dissolved in water the
a bungee jumper falls for 13s before the bungee cord beginsto stretch until the jumper has bounced back up to this
a total of 821middot106 electrons are placed on an initially uncharged wire of length 227 ma what is the magnitude of
a 100 kg quaterback is traveling 5 ms and is stopped by atackler in 1 second calculatea the initial momentum ofthe
aluminum is mined as the mineral bauxite which consists primarily of al2o3 alumina the aluminum can be refined by
the mass of the sun is 199 x 1030 kg and its distance from earth is 150 million kilometers 150 x 109 meters what is the
a slab of ice floats on a freshwater lake what minimum volume must the slab have for a 450kg woman to be able to stand
if you wanted to produce a sinusoidal 20v peak-to-peak signal in a 10 cm diameter pick up coil with a 100 turns sitting
calculate the rate constant for a reaction at 500k whose activation energy is 240 kjmol and the prefactor is 411 x