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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
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
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
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
two rigid rods are oriented in parallel to each other and to the ground the rods carry the same current in the same
red light n 1520and violet light n 1538 traveling in air are incident on a slab of crown glass bothcolors enter the
light in a vacuum is incident on a transparent glass slab theangle of incidence is 356deg the slab is then immersed in
a test tube 105 mm long is held rigidly at 29deg with respect tothe vertical in a centrifuge with its top lip 60 cm
a 12 turn loop of wire in the plane of the whiteboard has adiameter of 46cm and has a clockwise current of 732a a
an electron is trapped somewhere in a molecule which is 58nmlong calculate the minimum kinetic energy of the
a small mirror is attached to a vertical wall and it hangs adistance of 159 m above the floor the mirror is facing
a 500-omega resistor is connected to a 300-mufcapacitor and to a 600-hz 100-v rms sourcea find the power factor and the
one object is at rest and another is moving the two collide ina one-dimensional completely inelastic collision in other
a torque of 500nm is applied to a turbine rotating at 200rads after 40 sec its speed has doubled what is the
two hydrogen atoms both initially in the ground state undergo ahead-on collision if both atoms are to be excited to the
a planet in another solar system orbits a star with a mass of 40times1030 kg at one point in its orbit it is
a two-stage rocket moves in space at a constant velocity of4640 ms the two stages are then separated by a small
a tall tree is growing across a river from you you wouldlike to know the distance between yourself and the tree as well
an emf of 230 mv is induced in a505 turn coil when the current ischanging at a rate of 70 as what is the magnetic flux