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a circular coil of wire of 200 turns and diameter 20 cm carries a current of 40 a it is placed in a magnetic field of
a rock is thrown vertically upward from the edge of a cliff the rock reaches a maximum height of 196 m above the top of
a block slides down an inclined plane starting from rest and being pushed with a constant acceleration of 495 ms2 over
an ambulance is traveling east at 556 ms behind it there is a car traveling along the same direction at 345 ms the
roughly 397 of what you exhale is carbon dioxide assume that 224 l is the volume of 1 mole 602middot1023 molecules of
a circuit consists of a 15 microf capacitor a 600 ohms resistor and a 70mh inductor in series it is connected to a
to prevent damage to floors and to increase friction a crutch will often have a rubber tip attached to its end if the
a solid block is attached to a spring scale when the block is suspended in air the scale reads 211 n when it is
two cars leave a stoplight one 05128 s before the other the second car accelerates with twice the acceleration of the
an arrow is shot vertically upward and then 202 s later passes the top of a tree 413 m high how much longer will the
a fictional spaceship accelerates at a constant rate of 0108 ms2a how long would it take to reach the moon 348 x 108 m
when the dried up seed pod of a scotch broom plant bursts open it shoots out a seed with an initial velocity of 30 ms
what is the total energy of an object that has mass of 654 kg with a velocity of 627 ms which is also experiencing an
in the olympiad of 700 bce athletes competing in the standing long jump used handheld weights called halters to
two same-size metal posts one aluminum and one copper are subjected to equal shear stressesa which post will show the
a dolphin jumps with an initial velocity of 125 ms at an angle of 360deg above the horizontal the dolphin passes
a person walked a 400 m with a constant speed of 1 ms then he increased his speed and walked another 400 m with 2 ms
a spherical conducting shell of inner radius a and outer radius b carries a total charge of 5q distributed on the
in a football game a receiver is standing still having just caught a pass before he can move a tackler running at a
a vibrating guitar string emits a tone simultaneously with one from a 500-hz tuning fork if a beat frequency of 5 hz
sound travels at a speed of about 344 ms in air you see a distant flash of lighting and hear the thunder arrive 76
an object-spring system oscillates with an amplitude of 42 cm if the spring constant is 270 nm and object has a mass of
a child is sitting on the outer edge of a merry-go-round that is 18 m in diameter if the merry-go-round makes 84 revmin
an 800-khz radio signal is detected at a point 45 km distant from a transmitter tower the electric field amplitude of
a bicyclist travels in a circle of radius 260 m at a constant speed of 900 ms the bicycle-rider mass is 840 kga