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when a concave mirror is located facing the sun the suns rays converge to a point 10 centimeter from the mirror now an
a 120 gram ball moving to the right at 41 ms catches up and collides with a 450 gram ball that is moving to the right
a skier moving at 460 ms encounters a long rough horizontal patch of snow having coefficient of kinetic friction 0220
a coating of n1127 material is to be added to n2149 glass in order to make it iridescenta find the thinnest layer of
an airplane propeller is 214 meter in length from tip to tip with mass 107 kilogram and is rotating at 2900rpm about an
astronaut spud nick is space-travelling from planet x to planet y at a speed of 059 c when he is precisely halfway
a 80 gram 39 centimeter long rod hangs vertically on a frictionless horizontal axle passing through its center a 14
a 1200 kilogram car whose transmission is in neutral is coasting down a 10 degree hill with its brakes used to maintain
a truck is traveling at 131 ms down a hill when the brakes on all four wheels lock the hill makes an angle of 15 degree
a piton tube can be used to calculate the velocity of air flow by measuring the difference between the total pressure
a 5000 kilogram lunar lender is in orbit 30 kilometer above the surface of the moon it needs to move out to a 500
if a four engine jet accelerates down the runway at 2ms2 and one of the jet engines fails determine how much
a wood- sphere of radius 10 centimeter has a core of lead also in the shape of a sphere the wood sphere when located in
as you stand by a railroad track a train passes with its whistle blowing as it passes you hear a frequency shift equal
a 500 kilogram block is pulled from rest by a force of 1000 newton at an angle of 370 degree across a horizontal rough
1how does one perform ph analyzer calibration2why is calibration necessary for a ph analyzer3what is the difference
a 05 kilogram air track car is attached to the end of a horizontal spring of constant k 20 nm the car is displaced 15
a fly wheel in the form of a heavy circular disk of diameter 0600 meter and mass 200 kilogram is mounted on a
an airplane undergoes the following displacements first it flies 71 kilometer in a direction 30 degree east of north
asymptotic wavelength lambda limit for the lyman series is 911 nm determine the wavelength of the third emission
the asymptotic wavelength lambda limit for the brackett series is 1500 nm determine the wavelength of the first
a piece of charcoal used for cooking is found at the remains of an ancient campsite a 073 kilogram sample of carbon
a disk of radius 02 meter and moment of inertia 15 kg x m2 is mounted on a nearly frictionless axle a string is wrapped
a wave pulse travels down a slinky the mass of the slinky is m 088 kilogram and is initially stretched to a length l
a test charge is located at a distance of 25 times 10-2 m from a charge of 64 times 10-5 coulombs find what is the