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a 324 g sample of lauric acid c12h24o2 a common constituent of fats is burned in a bomb calorimeter the temperature of
on a hot summer day 30 degrees celsius a pesky little mosquito produced its warning sound near your ear the sound is
a uniform disk of mass m 16 kg and radius r 018 m rotates counterclockwise at a constant rate of 36 revs about its
a loop of wire in the shape of a rectangle of width 8 cm and length 90 cm and a long straight wire carrying acurrent i
a constant uniform magnetic field directed into this sheet exists in the region to the right of the y axis b0 to the
three moles of an ideal monatomic gas expands at a constant pressure of 290atm the volume of the gas changes from
a solid uniform sphere of mass 20 kg and radius 17 m rolls without slipping down an inclined plane of height 17 m what
a horizontal disk with a moment of inertia of 10 kg square meters relative to a vertical frictionless axis through its
a device consisting of four heavy balls connected by low mass rods is free to rotate about an axle it is initially not
one end of a 33cm long aluminum rod with a diameter of 28 is kept at 420c and the other is immersed in the water at
a cylinder contains 250 g of helium at 200 k the external pressure is constant at 1 atm there is an increase in
in a coffee-cup calorimeter 1 mol koh and 1 mol hbr initially at 235 oc celsius are mixed in 100g of water to yield the
a physics lecture room has a volume of 254 m3a for a gas pressure of 100 atm and a temperature of 270 oc use the ideal
the average speed of the atoms in a 39 g sample of helium gas is 607 ms estimate the thermal energy of the
a 1000g sample of nickel is heated to 1000 oc celsius and is placed in a coffee cup calorimeter containing 150 g of
a police car is moving at 38msec to catchup with a speeder directly ahead the speed limit is 291 msec police car
a 065 g sample of fructose mw 180 gmol is burned in a bomb calorimeter that has a heat capacity of 269 kjoc the
the box of a well-known breakfast cereal states that one ounce of the cereal contains 99 calories 1 food calorie 4186
how would i do this a lactic acidlactate ion buffer solution contains 22 m hc3h5o3 and 80 m c3h5o3- respectively the
a converging lensf14 cm is located 8 cm to the left of a diverging lens f2 -2 cm an object is placed 6 cm to the left
what is the ph of a 03656 m solution of the sodium salt of a weak acid with a pka of 3745 the answer is not ph pka
the magnetic field 450 cm away from a long straight wire carrying current 800 a is 200 microta at one instant the two
a sound wave travels twice as far in neon ne as it does it krypton kr in the same time interval both neon and krypton
the ksp for silver sulfate ag2so4 is 12 x 10-5 calculate the solubility of silver sulfate in each of the following a