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you are standing 120 m from a 1600-w heat lamp part 1a assuming that the energy of the heat lamp is radiated uniformly
the electronic energy level of a certain system are given by en e1n2 where n 1 2 3 assume that transitions can occur
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
the rough draft should1 continue to assess ways your chosen country or region has impacted or modified the physical
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