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at a temperature of 2460degc the hole in a steel plate has a diameter of 1055 cm if a steel rod with a diameter of 1063
a 1000-turn coil of wire that is 20 cm in diameter is in a magnetic field that drops from 013 t to 0 t in 12 ms the
light from a laser forms a 131-mm diameter spot on a wall if the light intensity in the spot is 158x104wm2 what is the
in 1675 the dutch biologist anton van leeuwenhoek using a single lens probably of focal length 125 mm discovered
you throw a 876-g pebble vertically up in the air by supplying it with the initial kinetic energy of 16 j how high up
an automobile has a mass of 1500 kg and us moving at a speed of 100 kmha what is its momentumb what average force will
a 500 turn circular-loop coil 160 cm in diameter is initially aligned so that its axis is parallel to the earths
an ac generator with f 256 hz supplies an rms voltage of 120 v to a circuit that includes a 450mh inductor and
two converging lenses are separated by 2800 cm the focal length of each lens is 9600 cm an object is placed 3200 cm to
a particle p with mass 10 kg has position vector r r 35 m and velocity v v 250 ms as shown in the figure it is acted
a uniform thin rod of length 050 m and mass 60 kg can rotate in a horizontal plane about a vertical axis through its
a single loop of area 0143 m2 is placed perpendicular to a magnetic field of 0354 t the loop is rotated about an axis
a 2500kg pickup truck is climbing at a constant speed of 18ms up a road inclined at 10 degrees the truck is subject to
a large turntable rotates about a fixed vertical axis making one revolution in 700 s the moment of inertia of the
a laser produces a 760 mw beam of light consisting of photons with a wavelength of 6288 nm what force does the laser
four point charges each of magnitude 1208 microc are placed at the corners of a square 843 cm on a side if three of the
a space ship releases a satellite at an altitude of 220 km while orbiting a planet having a radius and mass of 6400 km
a series rlc circuit consists of a 400 o resistor a 260 mh inductor and a 610 nf capacitor it is connected to an ac
part a what is the acceleration of an electron that is placed in a uniform electric field of 7200 nc pointing in the
you know that a rubber band is stretched or elongated by applied force f the applied force f is a function of elongated
a heat engine operates between two reservoirs at temperatures of 212oc and 316oc what is the maximum efficiency
the intensity of light from a lightbulb is 12 wm2 at a distance of 045 m from the bulb what is the intensity across the
a falling metallic ring enters a region with constant and uniform magnetic field b5t 1 if it takes one second to fall
six identical bulbs are connected in series across a 120-volt source what is the voltage across each bulb if the
an automobile has a vertical radio antenna 125 m long the automobile travels at 680 kmh on a horizontal road where