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a 400 l sample of a diatomic ideal gas with specific heat ratio 140 confined to a cylinder is carried through a closed
if the end of the crutch is a circle of radius 10 cm without the tip and the tip is a circle of radius 25 cm by what
a 30 kilogram child moving at 4 meters per second jumps onto a 50 kilogram sled that is initially at rest on a long
a proton accelerates from rest in a uniform electric field of 630 nc at some later time its speed is 104 106 msa find
a 2kg block initially hangs at rest at the end of two long strings of negligible mass as shown in the diagram below a
an engine absorbs 172 kj from a hot reservoir at 277degc and expels 124 kj to a cold reservoir at 27degc in each cyclea
a car has an initial speed of 30 ms and slows uniformly to 10 ms in 5 secs determine the distance it travels in the 3rd
a 011-kg balloon is filled with helium density 0179 kgm3 if the balloon is a sphere with a radius of 42 m what is the
in a constant-volume process 205 j of energy is transferred by heat to 094 mol of an ideal monatomic gas initially at
an electron ejected from an orbital of a diatomic molecule by 2122 ev radiation was found to have a speed of 190 mm s-1
gasoline contains predominately octane the octane value quoted on the pump is approximately equal to the percent of
a laboratory technician drops a 00850-kg sample of unknown material at a temperature of 100c into a calorimeter the
a commuter train blows its horn as it passes a passenger platform at a constant speed of 391 ms the train horn sounds
suppose yoursquore coding a 3d pool game and yoursquore focused on the cue ball hitting another ball at rest the cue
a parallel plate air filled capacitor has plates of area 080 m2 and a separation of 0040 mma find the capacitanceb if a
the standard enthalpy of sublimation of carbon dioxide is 263 kjmol at 190 k estimate the standard enthalpy of
a communications satellite is a solid cylinder with mass 1135 kg diameter 091 m and length 175 m prior to launching
a stoppered flask at 25degc contains 250 ml of water 200 ml of octanol and 50 ml of air an unknown amount of o-xylene
a sample of 23times1010 atoms that decay by alpha emission has a half-life of 150 min how many alpha particles are
if 10 mg of naphthalene is added to 1 liter of water in a 20-liter sealed bottle the solubility of naphthalene is 26 x
a thin rod of length l 080 m and negligible mass that can pivot about one end to rotate in a vertical circle a heavy
a solution is prepared by adding 20g of magnesium hydroxide solid to 2l of water that contains 10-5 moil of caoh2
a woman with a mass of 470 kg is standing on the rim of a large disk that is rotating at an angular velocity of 0480
radiation at temperature ti fills a thermally insulated cavity of volume v if the cavity expands isentropically to
a ball rolls off horizontally from a table that is 125m with an speed of 231ms how far away is the ball from the base