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a jar of water is boiling under one atmosphere of pressure suppose that heat enters the jar only through its bottom
when a vertical spring is compressed 5 centimeter it shoots a ball 50 centimeter straight up into the air if the spring
calculate the speed of a particle whose relativistic kinetic energy is p 56 percent greater than the newtonian value
an electron that has a horizontal initial speed of 450106 ms enters a region that has an electric field of 120 vm
the author gold wedding ring is stuck on his finger and he must remove it the ring has an inside diameter of 196
you are a blacksmith and have been working with 193 kilogram of steel when you are finished shaping it the steel is at
radio waves of wavelength 250 m from a star reach a radio telescope by two separate paths one is a direct path to the
planets go around the sun in elliptical orbits the extremely exaggerated diagram below shows a portion of such an orbit
when monochromatic light shines perpendicularly on a soap filmn 133 with air on each side the second smallest nonzero
a 150 g mass attached to a spring with a force constant of 450 nm vibrates on a horizontal frictionless surface in
a car drives around a curve with radius 410 meter at a speed of 32ms the road is banked at 5 degree the mass of car is
a spoon is raised 210 centimeter above a table if the spoon and its contents have a mass of 300 gram find the
there is a square loop with a current going clockwise inside of a solenoid with a current going clockwise the loop is
an 861 kg block of ice at 0 degreecelsius is sliding on a rough horizontal ice house floor also at 0 degreecelsius at
a 10 kilogram mass hangs on a rope wrapped around a freely rotating 2 kilogram cylinder of radius 10 centimeter
many satellites are moving in a circle in the earths equatorial plane they are at such a height above the earths
a 100 kilogram man is three fourths of the way up a 10 meter ladder that is resting against a smooth frictionless wall
a cycle wheel with a mass of 25 kilogram and a radius of 33 centimeter rolls across a horizontal floor with a
a pendulum is made up of a 20 kilogram mass suspended on a thin aluminum wire this pendulum has a period of exactly 40
a rope is wrapped around a wheel of diameter 50 centimeter the wheel is mounted with frictionless bearings on an axle
ten days after it was launched toward mars in december 1998 the mars climate orbiter space craft mass 629 kilogram
a nichrome heater dissipates 1250 w when the applied potential difference is 240 volt and the wire temperature is
two parallel-plate capacitors 20microf each are connected in series to a 90 volt battery one of the capacitors is then
responding to an alarm a 102 kilogram fireman slides down a pole to the ground floor 33 meter below the fireman starts
a uniform drawbridge must be held at a 37 deg angle above the horizontal to allow ships to pass underneath the