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consider a wire with resistivity of 52x10-7 m a diameter of 750 mm and a length of 27 m decide the resistance of the
the drawing shows two situations in which charges are placed on the x and y axes they are all located at the same
an extremely dense neutron with mass equal to that of the sun has a radius of about 10 km about the size of manhattan
a boat capable of making 60 kmh in still water is utilized to cross a river flowing at speed of 40 kmh the boat is
a 38-kg boy running at 37ms jumps tangentially onto a small circular merry-go-round of radius 20 m and rotational
two capacitor plates are equally and oppositely charged they are separated by 14cm an electron is released from rest at
the position of a particle is given in cm by x 8 cos9t where t is in seconds a discover the maximum speed b discover
a circular hoop of radius 75 cm is hung on a narrow horizontal rod and allowed to swing in the plane of the hoop what
a proton is initially at rest after some time a uniform electric field is turned on and the proton accelerates the
an alpha particle of charge 2e and mass 664times10-27 kg is moving in the x direction at 129times106 ms it enters a
the electric field near the surface of earth points downward and has a magnitude of 156 nca what is the ratio of the
the average current utilized to charge your smart phone is 12 amps if it takes 4 hours to charge your phone how many
a charge of -559 nc is uniformly distributed on a thin square sheet of non conducting material of edge length 247 cm
two point charges -25c and 60c are separated by a distance of 220cm nbspwhat is the magnitude of the electric field at
a playground is on the flat roof of a city school 46 m above the street below see figure the vertical wall of the
a spherical source radiates sound uniformly in all directions at a distance of 10 m the sound intensity level is 80 db1
a golfer hits a shot to a green that is elevated 3 m above the point where the ball is struck the ball leaves the club
as a tennis ball is struck it departs from the racket horizontally by a speed of 290 ms the ball hits the court at a
a golf ball rolls off a horizontal cliff with an initial speed of 110 ms the ball falls a vertical distance of 130 m
a marble is thrown horizontally by a speed of 16 ms from the top of a building when it strikes the ground the marble
a horizontal rifle is fired at a bulls-eye the muzzle speed of the bullet is 664 ms the gun is pointed directly at the
a skateboarder shoots off a ramp by a velocity of 65 ms directed at an angle of 54deg above the horizontal the end of
a volley ball is spiked so that it has an initial velocity of 17 ms directed downward at an angle of 65deg below the
a ball is thrown straight upward and rises to a maximum height of 18 m above its launch point at what height above its
two identical 90 c point charges are initially 25cm from each otherif they are released at the same instant from rest