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when an object of 180 kg hangs from a cord around light pulley of the cord between point p and the pulley is lenght l
in a local bar a customer slides an empty beer mug on the counter for a refill the bartender is momentarily distracted
toad make use of resonance in a closed tube to produce very loud sound the tube is its swin bladder used as an
a converging lens of focal length 8490 cm is 198 cm to the left of a diverging lens of focal length -583 cm a coin is
an elephants legs have a reasonably uniform cross section from top to bottom and they are quite long pivoting high on
a rock is dropped into an abandoned mine and a splash is heard 6 s later assuming that it takes a negligible time for
a boy 110m above the ground in a tree throws a ball for his dog who is standing right below the tree and starts running
a hare and a tortoise compete in a race over a straight course 180 km long the tortoise crawls at a speed of 0190 ms
a football is thrown with an initial upward velocity component of 125ms and a horizontal velocity component of 170mshow
a bullet is fired horizontally with an initial velocity of 900 ms at a target located 150 m from the riflehow much time
a projectile is fired with an initial speed of 652 m at an angle of 345 above the horizontal on a long flat firing
accelerating charges radiate electromagnetic waves calculate the wavelength of radiation produced by a proton in a
a military helicopter on a training mission is flying horizontally at a speed of 900ms when it accidentally drops a
a speed skater moving across frictionless ice at 81 ms hits a 56m wide patch of rough ice she slows steadily then
a 2700 pf air-gap capacitor is connected to a 75 v battery if a piece of mica is placed between the plates how much
a 49-n hammer head is stopped from an initial downward velocity of 32 ms in a distance of 045 cm by a nail in a pine
a 287kg box is pulled at a constant speed by the little engine the box moves a distance of 24 m across the horizontal
a cube made of wood has sides 1520 cm in length with an uncertainty of 005 cm a cylindrical hole is drilled
two locomotives approach each other on parallel tracks each has a speed of v 95 kmh with respect to the ground if they
when the sun is directly overhead a hawk dives toward the ground with a constant velocity of 570 ms at 550deg below the
a 0240 kg block on a vertical spring with spring constant of 420 103 nm is pushed downward compressing the spring 0045
a fox fleeing from a hunter encounters a 0690 m tall fence and attempts to jump it the fox jumps with an initial
a boy 100 m above the ground in a tree throws a ball for his dog who is standing right below the tree and starts
a car travels along a straight line at a constant speed of 415 mih for a distance d and then another distance d in the
a 20cm x 20cm parallel-plate capacitor has a 20mm spacing the electric field strength inside the capacitor is