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a slab ofmass m1 40 kg rests on africtionless floor and a block ofmass m2 10 kg rests on top of theslab between block
an air rifle uses aspring to shoot a 50 gram projectile straight up in the air thespring has a spring constant of 150
on a frictionless horizontal surface a 150 kg mass traveling at350 ms collides with and sticks to 300 kg mass that
when the difference in ph across the membrane of a glass electrode at 25 degrees celsius is 475 ph units a how much
the radius of curvature of a mirror is 12cm a diamond ring isreplaced in front of the mirror the image is 14 the
567 grams of metal is heated to 10000 celscuis and transferred to 1000 grams of watercs418jgc intially at 210 c in an
the average intensity of sunlight reaching the earth is 1390wm2 a charge of 20 x 10-6 c is placedin the path of this
sucrose c12h22o11 can be mixed with potassium nitrate to form an amateur rocket propellant called rocket candy which
for the reaction2 b5h9l 12 o2g 5 b2o3s 9 h2ol hrxn -904 kj if 300 moles of b5h9 react how much heat is
a gaseous gydrogem and carbon conaining compound is decomposed and found to contain 8563 and 1437 h by mass the mass of
the distance between the first and fifth minima of a single-slitdiffraction pattern is 0400 mm with the screen 350 cm
a ray of light in air is incident on a planar surface of silica the refracted ray makes an angle of 272 with the
when 800 g of hot aluminum is dropped intoa 150 g glass beaker initially holding 200g of water at 600 oc thesystem
acid rain is caused in part by burning coal that contains sulfur impurities the sulfur is converted first to so2 which
a a series rlc circuit has elements with the following valuesr 10omega l05 h and c 2muf what is the resonant frequency
7 302 g of n2o reacts completely with an equimolar amount of no2 to form elemental nitrogen and oxygen how much n2 is
a 10 kg uniform ladder 50 m long is placed against a smooth wallat a height of 31 m the base of the ladder rests on a
when heated a 96 g sample of ammonium perchlorate nh4clo4 ignites and burns in the absence of any other material to
a fire helicopter carries a 620 kg bucket of water at the end of a 20 m long cable flying back from a fire at a
the experiment is called geometric isomerism where fumeric acid is created from maleic acid why isnt noritdecolorizing
a ball is released from rest on a no-slip surface as shown after reaching its lowest point the ball begins to rise
give the corresponding atomic orbital designations that is 1s 3p and so on for electrons with the following sets of
calculate the molarity of a solution made by dissolving 125 g of na2cro4 in enough water to form exactly 550 ml of
suppose the g-string of a guitar is 33 m long and has a linear density of 874 mgm the thumb screw attached to the
what mass of ethane gas c2h6 must burn in excess oxygen to produce 200 x 103 kj of heat given the thermochemical