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light of wavelength 631 nanometer passes through a diffraction grating having 360 linesmma find the total number of
an electric fan not only does not decrease the temperature of the air but it really increases air temperature how can
air in a cylinder is compressed to one-tenth of its actual volume without change in temperature explain what happens to
a thin nylon cord weighs 850 g and is held taught by a force of 425 n it is 400 cm in length when this cord is
a lead shot of mass 600 gram is heated to 100oc and located in an aluminum can of mass 200 gram which contains 500 gram
a molecule of dna deoxyribonucleic acid is 221 microm long the ends of the molecule become singly ionized negative on
a human cannonball with a mass of 70 kilogram receives a movement quantity j of 4 x 103 ns during 035 secondsa obtain
a softball player is running towards first base with a velocity of 100 00 ms the shortstop is running towards third
two space shuttles belonging to two different countries made an appointment in space their engines are closed and they
two eagles fly directly toward one another the first at 150 ms and the second at 200 ms both screech the first one
at enormous state university esu the football team records its plays using vector displacements with the origin taken
a uniform rope of mass m and length l is held with its lower end just touching the surface of a scale the rope is
use the unit factor method to solve the following problems set up each problem in the exact same way using all six
a charge of 125 uc is fixed at the center of a square that is 064 meter on each side determine how much work is done by
determine how long it would take for a net charge of 21cc to pass a location in a wire if it is to carry a steady
a 240 mhz sound wave travels through a pregnant ladys abdomen and is reflected from the fetal heart wall of her unborn
two parallel plates 130cm apart are equally and oppositely charged an electron is released from rest at the surface of
a speedboat moving at 330 ms approaches a no-wake buoy marker 100 m ahead the pilot slows the boat by a constant
a particle starts from rest and accelerates as shown in the figure below a decide the particles speed at t 100 s ms
a pipe comes diagonally down the south wall of a building making an angle of 45 degree with the horizontal coming into
suppose the population of a large city like new york city is about 3 times 106 people with about 29 people per
an ideal carnot engine operates among 455c and 180c with a heat input of 270j per cycle how much heat is delivered to
the radius of the moon is 174 times 106 meter the radius of the sun is 696 times 108 meter the average moon-earth
a celsius thermometer in laboratory reads the surrounding temperature as 30degc find what is the temperature in
three positive charges are located in the x-y plane see plot below with q1310 c q2520 c and q3630 c note that the