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a length of aluminum wire has a resistance of 120 omega at 220degc when the wire is warmed in an oven and reaches
a 035 kilogram pinecone falls 147 meter to the ground where it lands with a speed of 11 ms find with what speed would
an 047 kilogram soft ball is pitched at a speed of 20 ms the batter hits it back directly at the pitcher at a speed of
two horses pull a large crate at fix speed across a barn floor by means of two light steel cables a large box of mass
an unstable high energy particle is created in the laboratory and it moves at a speed of 0968c relative to a stationary
light shines through a single slit whose width is 680 x 10-4 meter a diffraction pattern is formed on a flat screen
paleontologists estimate that if a tyrannosaurus rex were to trip and fall it would have experienced a net force of
two earth satellites are in parallel orbits with radii 6701 km and 6700 km one day they pass each other 1 kilometer
you are on a ferries wheel you wonder about the motion of the ride you calculate the radius of the big wheel to be 15
a freely falling object requires 105 second to travel the last 300 meter before it hits the ground find from what
a locomotive is pulling three wagons along a level track with a force of 100000 newton the wagon next to the locomotive
a 1000 kilogram automobile rounds a curve of a radius of 70 meter at 23ms and the banking angle is 38o for no friction
a place kicker must kick a football from a point 32 meter about 35 yd from the goal and the ball must clear the
a car traveling 82 kmh is 130 m behind a truck traveling 72 kmh find how long will it take the car to reach the truck
a sprinter can accelerate with constant acceleration for 450 second before reaching top speed he can run the 100-m dash
two capacitors with capacitances of 440 microf and 600 microf are connected in parallel across a 660 volt supply linea
the position of a particle moving along an x axis is given by x 23t 2- 50t 3 where x is in meters and t is in secondsa
a factory employee pushes a 35 kilogram crate across the floor by applying a 600 n push at a 30o angle above the
a fax machine uses 0105 amp of current in its normal mode of operation but only 0071 amp in the standby mode the
utilizing the bohr model for hydrogen-like atoms prepare first-order estimates of the energies expected for the ka
the radius of the moon is 14 of that of the earth and its mean density is 45 that of the earth find the force of
utilizing bond energies predict he enthalpy change for the subsequent combustion reaction of methane and oxygen- ch4g
the plane of a rectangular loop of wire with a width of l and a height of h is parallel to a magnetic field of
in a circus performance a monkey is strapped to a sled and both are given an initial speed of 50 ms up a230 degree