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two skaters a and b of equal mass are moving in clockwise uniform circular motion on the ice their motions have equal
the vapor pressure of ccl3f at 300 k is 856 torr if 115 g of ccl3f is enclosed in a 12 -l container will any liquid be
ironman is chasing a bad guy who is running at 72 ms when he is 143m behind the bad guy he turns on his rocket boots so
a model rocket is fired vertically from rest it has acceleration of 142ms2 after 15s its fuel exhausted and its only
the density of a human body can be approximated by the density of water which is equal to 1000 x 103 kgm3 what volume
a ball is thrown from a point 10m above the ground the initial velocity is 68ms at an angle of 30 degrees above the
a rotating fan completes 1200 revolutions every minute consider a point on the tip of a blade at a radius of 20 ma
the ultraviolet excimer laser used in the prk technique see section 309 has a wavelength of 193 nm a carbon dioxide
you throw a ball torwards a wall at speed 21 ms and an angle of 40 degrees above the horizontal the wall is 220 m from
a car approaches the top of a hill that is shaped like a vertical circle with a radius of 60m what is the fastest speed
a 10 cm x 10 cm x 10 cm cube of aluminum 27 gcm3 132x10-11 pa-1 at 20oc is compressed isothermally the pressure
the density of an unknown metal is 123 gcm3 and its atomic radius is 0134 nm it has a face-centered cubic lattice find
given a charged insulating sphere with radius r and charge density p rho calculate the electric potential inside and
a 60 ohm and 120 ohm resistor are connected in series to a 36v batterya what is the current through each resistorb what
solution b is made by taking 150ml of solution a and diluting it to 10000 ml if solution b is found to contain 550ppb
if a 1500kg car is driven in sand at 5ms the coefficient of rolling friction is 006 in this case nearly all of the
calculate the change in ph when 300 ml of 0100 m hclaq is added to 1000 ml of a buffer solution that is 0100 m in nh3
consider a series lrc circuit with r39 l011 h and c1 microf the current is 11 ma amplitude at 22 khz remember 2f
consider a system consisting of three masses on the axis mass 120 is at 110 mass 210 is at 190 and mass 270 is
a compound has a molar mass of 1101gmol and a composition of 6545c 545 h and 2909 o calculate the molecular formula of
ip at a certain distance from the center of the earth a 50- object has a weight of 30 find this distance if the object
an unknown metal forms two different compounds with oxygen when a 2412 g sample of the metal is combined with oxygen
some european trucks run on energy stored in a rotating flywheel with an electric motor getting the flywheel up to its
using a block of a transparent unknown material it is found that a beam of light inside the material becomes totally
light in air is incident perpendicularly on a sheet of crown glass having an index of refraction of 1522 determine both