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a mass on a spring has a angular oscillation frequency of 281rads the mass has a maximum displacement when t 0s of
the two isotopes of uranium 238u and 235u can be separated by effusion of the corresponding uf6 gases amp160what is the
a magnetic field of strength 027 t isdirected perpendicular to a plane circular loop of wire of radius25 cm find the
a neutron star has a mass of 1030 kg and a radius of 5 kilometers a body is droped from a height of 20cm above the
a cylinder of gas at room temperature 20 degree c has a pressure p1 to what temperature in degrees celsius would the
a 42kg objectinitially at restexplodesinto three objects of equal masstwo of these aredetermined to have velocities of
a camper is trying to start a fire by focusing sunlight onto apiece of paper the diameter of the sun is 139 x109 m and
were doing a lab and im asked to calculate the molar heat of vaporization of water the data i have is the temperature
a gas consists of 495 grams of oxygen and 495 grams of nitrogen and occupies a volume of 115 liter at a temperature of
a slide projector has a converging lens whose focal length is11700 mm a how far in meters fromthe lens must the screen
to help prevent frost damage fruit growers sometimes protecttheir crop by spraying it with water when overnight
the owner of a van installs a rear-window lens that has a focallength of -0330 m when the owner looks out through the
in a calibration experiment a 104 millimole sample of na2co3 gave 087 millimoles of co2 gas if a 0387 g of pure na2co3
a drum rotates around its central axis at an angular velocity of108 rads if the drum then slows at a constant rate of
in an isometric exercise a person places a hand on a scale and pushes vertically downward keeping the forearm
6- in the reaction 2kmno4 5cooh2 3h2so4 yields 10 co2 2mnso4 k2so4 8h2o is the manganese being oxidized reduced or
a gymnast is performing a floor routine in a tumbling run shespins through the air increasing her angular velocity from
starting from rest a 94-kg firefighter slides down a fire polethe average frictional force everted on him by the pole
a mixture of 0162 moles of c is reacted with 0117 moles of o2 in a seated 100 l vessel at 500 k producing a mixture of
consider a perfectlyelastic collision between two objects of equal mass object 1 is initially moving with a velocity v
the drawing shows an a-shaped ladder both sides of the ladder areequal in length this ladder is standing on a
assume a scuba diver is working at a depth where the total pressure is 50 atm about 50 m below the surface what mole
a cyclist traveling at 5 ms uniformly accelerates up to 10 ms in20 sec each tire of the bike has a 35 cm radius and a
a freight car with a mass of 2500 kg rolls down an inclinedtrack through a vertical distance of 15m at the bottom of
what is the balanced chemical reaction resulting when 50 ml of 2 m kcl and 300 ml of 030 m pbno32 are added