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a 500 turn solenoid with a length of 20 cmand a radius of 20 cm carries a currentof 20 a a second coil of four turns
a spherical aluminum ball of mass 156kg contains an empty spherical cavity that is concentric with the ball the ball
stephen is pushing his sister joyce in a wheel barrow when its stopped by a brick 783 cm high the handles make an angle
an object at rest on a flat horizontal surface explodes into two fragments one 5 times heavier than the other the
a 30 resistor and a second resistor are connected in seriesacross a 250 v battery a current of 40 a flows through the
a vertical spring with force constant k of 300 nm is compressed006 meters and a 025 kg ball located on top the spring
a 05 kg mass is located on the end of a vertical spring that has a spring constant k of 75 nm and eased down into its
two identical cylindrical vessels with their bases at the similar level each contain a liquid of density 0991 gcm3 the
a pump lifts 200kg of water per hour a height of 5 meters find the minimum necessary power output rating of the water
in a model ac generator a 501 turn rectangular coil 100 cm by 23 cmrotates at 123 revmin in a uniformmagnetic field of
a horizontal spring with spring constant 140 is compressed 20 and used to launch a 26 box across a friction less
a particle lives for a little time before breaking apart into other particles assume it is moving at a speed of 0984c
a ladder of weight 200 n and length 10 meters leans against a smooth friction less wall a fire fighter of weight 600 n
a motorcycle accelerates uniformly from rest and reaches a linear speed of 286 ms in a time of 119 s the radius of each
the x -component of the velocity of an object vibrating along the x - axis obeys the equation vxt 0445 ms sin 254radst
a meter stick is freely pivoted about the 20 cm mark find the frequency of small amplitude
if we assume that an electron is orbiting a proton just like the moon orbits the earth determine the electron orbital
a 0335 m string is clamped at both ends if the lowest standing wave frequency in the string is 326 hz evaluate what is
a 10- kg uniform ladder 50 m long is placed against a smooth wall at a height of 31 m the base of the ladder rests on a
one of the harmonics of a column of air open at one end and closed at the other has a frequency of 448 hz and the next
a 60 kg block slides along a frictionless horizontal ground at a velocity of 7 ms after sliding for 20 m the block
you want to design a helium-filled balloon that will lift a whole payload of 1350 kg find what volume of helium is
a uniform solid disk of mass 297 kg and radius 0200 m rotates about a fixed axis perpendicular to its facea if the
a suitcase full of platinum sits at the bottom of a lake a recovery diver finds that as he lifts the suitcase to the
the depth of the potential well for free electrons in a metal can be accurately determined by observing that the