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a 626 kilogram elevator starts from rest and moves upward for 250 second with constant acceleration until it reaches
calculate the number of liters of water a human drinks in a lifetime suppose a lifetime of 72 years and consumption of
a typical adult human lungs contain about 270 million tiny cavities called alveoli calculate the average diameter of a
the output stage of a high-fidelity amplifier has an internal impedance of 162 ohm if this is to be connected to an
a mass m 1kilogram is released from rest on a frictionless track at a height h5 meter the mass slides on the track
a 200 x 102 n force is pulling an 800 kilogram refrigerator across a horizontal plane the force acts at an angle of 240
a flywheel turns through 36 rev as it slows from an angular speed of 48 rads to a stopa suppose a constant angular
a 10 kilogram block is placed on an ideal vertical spring that has been compressed 20 centimeter from its equilibrium
a 25 kilogram boy on a playground swing moves with a speed of 45 ms when the 30 meter long swing is at its lowest point
compressed air is used to fire a 50 gram ball vertically upward from a 10 meter tall tube the air exerts an upward
a box is held in place against a rough vertical wall by someone pushing on it with a force directed upward at 30 degree
police investigators examining the scene of an accident involving two vans measure 72 meter long skid marks of one of
if a curve with a radius of 89 meter is perfectly banked for a car traveling 75 kmh find what must be the coefficient
a 075 kilogram ball attached to the end of a horizontal cord is rotated in a circle of radius 15 meter on a
zach whose mass is 66 kilogram is in an elevator descending at 8 ms the elevator takes 21 second to brake to a stop at
a 10 kilogram wood block is launched up a wooden ramp that is inclined at a 34 degree angle the blocks initial speed is
an object is moving in the x - y plane in such a way that vx 4t3 4t and vy 4t if the position of the object is 1 2
sams circuit has a 24 omega resistor that is connected in series to two 12 omega resistors that are connected in
an airplane with a speed of 975ms is climbing upward at an angle of 500 degree when the planes altitude is 732 meter
a transformer on a pole near a factory steps the voltage down from 3600 v rms to 120 v rms the transformer is to
during very high speed the atmospheric pressure inside a home may blow the roof off because of the reduced outside
a man on a tower 49 meter high drops a stone one second later he throws a second stone after the first they both hit
a motorist traveling at 100 ms down a street and a police officer on a motorcycle taking additional 500 sec to finish
a silver wire 17 millimeter in diameter transfers a charge of 70 c in one h and ten min silver contains 58 x 1028 free