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using a force of 280 newton a student pulls a 700 newton weight along the tabletop for a distance of 150 meters in 30
what is the maximum achievable power output of a wind turbine of blade radius 2m in a 25 mph
describe the chemical properties of alkanes what chemical structure makes a compound an alkane how can alkanes react
assume all temperatures to be exactto determine the specific heat of a new metal alloy 0180nbspkg of the substance is
a certain charged particle moves in a path of radius 52x10-1m in a uniform magnetic field if the speed of the particle
a microscope objective has a focal length of 17 mm it forms an image at 16 cm from its second focal point how far from
the figure below shows a horizontal wire of infinite length that carries a constant current of i 30 a flowing to the
a smallnbsp170-mm-diameter circular loop withnbsprnbsp 140times10-2nbspomega is at the center of a
a position and an electron are placed in place in space 1 meter away from each other the position has same mass as
among the globular clusters orbiting a distant galaxy one is moving at 420 kms and is located 11 kpc from the center of
a projectile is launched from the ground at an angle of 30 to the horizontal it has an initial speed of 20 ms-1
a bug is hanging onto the rim of a bicycle wheel for dear life as the bicycle rolls down the road at a speed of 5 ms
two people of equal mass hold hands while ice skating and are spinning around a point midway between them with no
explain what three groups of biochemical compounds are used as food in the human body and the chemical nature of each
if h is the rate at which the universe expands in kmfraslsfraslmpc then the hubble time is t 1fraslh find the hubble
often when something slides down a ramp we ignore the energy lost due to friction what is a conservation of energy
a tetherball is attached to a pole with a 20-m rope it is circling at 020 revs as the rope wraps around the pole it
an object is placed 52 cm in front of a circular converging mirror a real image forms 162 cm in front of the mirror by
an object is placed 49 cm in front of a converging lens an image forms which has a magnification of 226 and is inverted
a parallel plate capacitor has plates of area 100 cm2 separated by 0250 mm there is a charge of magnitude 400 pc on
a car is moving down a flat horizontal highway at a constant speed of 210msnbspwhen suddenly a rock dropped from rest
a cannonball is fired horizontally from the top of a tall cliff at a speed of 392msa using a coordinate system where
what would happen to atoms if the down quark had charge 13 rather than - 13would a particle made by updownstrange
suppose that you have a certain spring to which you add weights the spring does not stretch until you add 10 n but it
radioactive decaythe radionuclide 64cu has a half-life of 127 ha how much of an initially pure 550 g sample of 64cu