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a 100 ml sample of 010 m hcl is mixed with 50 ml of 015 m nh3 what is the resulting ph kb for nh3 18 times
starting from rest a 96-kg firefighter slides down a fire pole the average frictional force everted on him by the pole
in 1769 seconds you compress a spring of spring constant 15333 nm from its equilibrium length of 65 cm to a length of
lakes that have been acidified by acid rain can be neutralized by liming the addition of limestone caco3 how much
a car plus its driver has a mass of 1400 kg when the driver takes his foot off the accelerator the car slows from 30 m
the first-order reaction for hydorgen peroxide decomposing to h20 and o2 aq the rate constant at 25 c is 740 x
a body is traveling at 500 ms along the positive direction of an x-axis no net force acts on the body an internal
gas is confined in a tank at a pressure of 115 atm and a temperature of 232degc if two thirds of the gas is withdrawn
a wire with a resistance of 45 is drawn out through a die so that its new length is 4 times its original length find
on vacation your 1250 kg car pulls a 540 kg trailer away from a stop light with an acceleration of 175 ms2a what is the
the basement membrane of the glomerulus has the following properties rp 5 nm the total glomerular membrane areas is 15
a 160 object is taken to a height of 320 above the earths surface what is the objects weight at this
a uniform thin solid door has height 210 m width 0820 m and mass 235 kga find its moment of inertia for rotation on its
a block with mass m 187 kg slides down an inclined plane of slope angle 184o with a constant velocity it is then
a child playing tee ball hits a stationary 65 g ball with a 200 g bat swinging initially at 40 ms bat and ball move in
a block of mass m1 667 kg on a frictionless plane inclined at angle 336deg is connected by a cord over a massless
the maximum torque experienced by a coil in a 065 t magnetic field is 84 10-4 n middot m the coil is circular and
this same battery is now connected to a 12 resistor how much current flows through this
a horizontal spring with k 110 nm has one end attached to the wall a 240g block is pushed onto the free end
an object moves 227m in the x-direction under the influence of a 141n force directed 41 degrees above the x-axis find
suggest chemical reactions that could be used to identify the contents of four unlabeled bottles containing solutions
a 50 g sample of greenish-yellow cl2 gas is added to a 100 g sample of gray potassium metal to form a white solid in a
a lawn mower has a flat rod-shaped steel blade that rotates about its center the mass of the blade is 0527 kg and its
a car of mass 30 x103 kg traveling at a speed of 20 ms is passing a truck of mass 70x103 kg traveling at a speed of 10
sodium cyclamate nac6h12nso3 was a popular nonsugar sweetener until it was banned by the food and drug administration