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the electron gun in a traditional television tube fires electronsof kinetic energy 25 kev at the screen in a circular
the second part of this question says only the circular section is rotated 90 degrees ccw therefore shouldnt the
a horizontal wire of length 30 m carries a curruent of 6 a and isoriented so that the direction is 50 degrees s of w
suppose it had been decided that the avogadro constant should be recalculated as the number of gold atoms in 19700g of
the electricity supplied through a city power line is transmitted at 14300 v on each city block there are one or more
a two-stage rocket moves in space at a constant velocity of 4940 ms the two stages are then separated by a small
determine the quantity of unknown protein that has an absorbance of 0202 when a blank has an absorbance of 0086 the
a gas sample occupying a volume of 647ml at a pressure of 0971 atm is allowed to expand at constant temperature until
a trees image on a 35mm color slide is 18mm high it is to beprojected onto a screen 3m from the slide and will appear
the lens of a camera with focal object length fo 9cm perfectly focuses the image of an object on film located adistance
a sample of na2so4 s is dissolved in 225g of water at 298 k such that the solution is 025 m in na2so4 a temperature
in the bohr theory of the hydrogen atom an electron moves ina circular orbit about a proton the radius of the orbit
in a football game a receiver is standing still having just caught a pass before he can move a tackler running at a
a wire has a resistance of 600 ohms and is bent into a squareloop with sides of length 150 cm the loop is
under constant pressure conditions a sample of hydrogen gas initially at 13 degrees c and 80 l is cooled until its
two rigid rods are oriented in parallel to each other and to the ground the rods carry the same current in the same
glyceryl trimristrate and myristic acid are both white in color and have very close melting points suggest two ways to
red light n 1520and violet light n 1538 traveling in air are incident on a slab of crown glass bothcolors enter the
a sample of gas originally occupies 2554l at 000 degrees c what is the new volume when it is heated to 2100 degrees c
light in a vacuum is incident on a transparent glass slab theangle of incidence is 356deg the slab is then immersed in
alzarin yellow has a ph range of 101-121 what is its ka it is yellow at ph 10 and red at ph 12 what is the color of a
a test tube 105 mm long is held rigidly at 29deg with respect tothe vertical in a centrifuge with its top lip 60 cm
can someone explain the following subjects in a little detail enthalpy of formation kp and kc and finding like the mass
a 12 turn loop of wire in the plane of the whiteboard has adiameter of 46cm and has a clockwise current of 732a a
we are titrating 2142 ml of 03711 m hypobromous acid hobr ka 2000x109 with 05076 m lioh what is the ph at the