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how many grams of baking soda nahco3 are needed to react with 205 ml of stomach acid having an hcl concentration of
raw sewage is raised vertically by 549m in the amountof 189106 liters each day if the average density ofthe sewage is
three identical masses of 620 each are placed on the x axis one mass is at -130 one is at the origin and one is at
the sun has a mass of 199 x 1030 kg and is moving in a circularorbit about the center of our galaxy the milky way
a 90 kg cylinder rolls withoutslipping on a rough surface at an instant when its center ofgravity has a speed of 80
exactly 2000 ml of standard 01171 m caoh2 are titrated with a solution of citric acid h3c6h5o7 if 1743 ml of the citric
a 40kg block is suspended from a spring with force constant of500nm a 50g bullet is fired into the block from directly
in a hypothetical nuclear fusion reactor the fuel is deuterium gas at a temperature of about 91 x 108 k if this gas
calculate the change in entropy when 165 mol of a perfect gas with cvm 12 j k-1 mol-1 is compressed from 064 dm3 to 023
a cylindrical fishing reel has a moment of inertia of i 630e-4 kgm2 and a radius of 386 cm a friction clutchin the reel
a styrofoam cup holding 90 g of hot water at 95degc cools to room temperature 230degc what is the change in entropy of
the alarm at a fire station rings and a 79-kg fireman starting from rest slides down a pole to the floor below a
a guitar string is 91 cm long andhas a mass of 36 g the distance from the bridge to the supportpost is l 60 cm and the
what mass of aluminum hydroxide can be made from 50 ml of 025m alno33 and 100 ml of 01 m
a parallel-plate vacuum capacitor with its plates separated by a distance of x1 has an amount of energy equal to u
rank the diffusion coefficients from least 1 to greatest 4 for the following cases assume the temperature is the same
a 200 mw laser pulse is focused with a lens to a diameter of20muma what is the laser beams electric field amplitude at
how do you find the thickness of a piece of tinfoil in atoms with only the piece of foil metric rulers metric balance
a carnot engine operates between a hot reservoir at 310 k and a cold reservoir at 280 k if it absorbs 500 j of heat at
two solutions a and b are labeled 021 m cacl2 and 034 m cacl2 respectively both solutions contain the same number of
an object of mass m200 kg is attached to a spring which is vibrating on a horizontell frictionless table the spring has
write equations for the dissociation of the following in water include physical states for all
a 10kg block is set moving with an initial speed of 6 ms on arough horizontal surface if the force of friction is
a 10-cm-diameter disk emits light uniformly from its surface 20 cm from this disk along its axis is an 90-cm-diameter
a small postage stamp is placed in front of a concavemirror radius 84m such that the image distanceequals the object