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at the end of an amusement park ride you want the gondola to stop without the acceleration exceeding 2 gs if the total
under certain conditions the human body can withstand an acceleration of 10 gs what is the net force in newtons acting
motor oil with a viscosirt of 0250 nsm2 is flowing through a tube that has a radius of 300 mm and is 100 mm long the
a pulsed laser emits light in a series of short pulses each having a duration of 230 ms the average power of each pulse
a positively charged particle of mass 620 10-8 kg is traveling due east with a speed of 30 ms and enters a 041 t
a certain radioisotope has a half-life of 110 days what fraction of an initial sample of this isotope remains after 227
the distance between two telephone poles is 50m when a 1kg bird lands on the telephone wire midway between the poles
a certain refrigerator is rated as being 31 as efficient as a carnot refrigerator to remove 105 j of heat from the
suppose we have an isotropic substance for which the coefficient of linear expansion alphaalpha is the same in all
an archer pulls her bowstring back 0420 m by exerting a force that increases uniformly from zero to 220 na what is the
105 g of copper metal is heated to 100 degrees c the copper is then placed into a cup that contains 25 g of tap water
a 830 cm pendulum is released from a small angle after 109 oscillations the amplitude is one half of its original value
a 200g oscillator in a vacuum chamber has a frequency of 2hz when air is admitted the oscillation decreases to 60 of
consider a line that is 14 m long a moving object is somewhere along this line but its position is not knowna find the
a bucket of mass 5 kg is suspended over a well shaft by a winch and a rope the winch is a solid cylinder of mass m12 kg
a bungee cord is stretched between two poles with a force of 393 n the length of the cord is 36 meters and it has a
in a harmonic pendulum the lengths are increasing monotonically the lengths are measured so that in a defined set of
explain how einsteinrsquos contribution to understanding the force between the earth and the moon differed from
a 0056 kg aluminum bullet traveling at 462 ms strikes an armor plate and comes to a stop if all its energy is converted
two metal rods of equal length-one aluminum the other stainless steel-are connected in parallel with a temperature of
in a specific heat experiment 200 g of aluminium cp0215 calgc at 1000c is mixed with 50 g of water at 20c find the
at the time this problem was written the price of gold was 411 per ounce while that of platinum was 884 an ounce the
a cube of ice is taken from the freezer at -92degc and placed in a 98 g aluminum calorimeter filled with 299 g of water
suppose a simple pendulum is used to measure the acceleration due to gravity at various points on the earth if g varies
a thin disk of mass 49 kg and radius 23 cm is suspended by a horizontal axis perpendicular to the disk through its rim