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a boy and girl are balanced on a massless seesaw the boy has amass of 75kg and the girl has a mass of 50kg if the boy
in this experiment you are adding naphthalene to cyclohexane and using the freezing point depression to determine its
a skateboarder whose mass is 57kg is moving at 37ms at thetop of a 51m ramp without pushing on the ground she rolls
a vibrating string with a uniform linear mass density exhibits a single-loop standing wave pattern with a frequency of
you determine that the freezing point of a solution consisting of 200 g of cyclohexane and an unknown amount of
in an average human basic life processes require energy to besupplied at a steady rate of 100 rm wwhat daily
a puck on a frictionless air hockey table has a mass of 0500 kg and is attached to a cord passing through a hole in the
a thin rod of uniform mass density has length l 120 m and mass m 200 kg it is pivoted about a horizontal frictionless
an aluminum tank of volume 00300 meters cubed is filledto the top with mercury at 20 degrees c the tank is placed
diffraction of a wave through an opening may be observed when its wavelength is comparable to within a factor of 100 to
a harpsichord string of length 165 m and linear mass density 244 mgm vibrates at a fundamental frequency of 445 hz1
nitric oxide no reacts instantly with oxygen gas to form nitrogen dioxide no2 a dark-brown gas2 nog o2g 2 no2gin one
nbspa 1000hz sound travels through pure oxygennbsp the wavelength of the sound is measured to be 065mnbsp what is the
at low temperatures xenon freezes to a solid having a density of 5679 gcm3 below 84 k argon also freezes to a solid
a transverse wave on a string is described by the following equation where x is in meters and t is in seconds y 0130 m
the first ionization energy of lead pb is 716 kjmol if a pb atom is ionized using a photon of ultraviolet radiation
the force stretching the d string on a certain guitar is 6400nnbsp the strings linear mass density is 001kgmnbsp what
the electron affinity of tin sn is -107 kjmol in this case the negative sign of ea means that energy is required to
a cart is placed on an inclined plane a wooden board which is seton an angle and attached to a pulley by a rope at the
at this depth what force must the frame around a circularsubmarine porthole having a diameter of 310 cm exert to
an empty 1070 kg car has its cm250 m behind the front of the car howfar from the front of the car will the cm be when
an empty rubber balloon has a mass of 0120kg the balloon isfilled with heliumat a density of 181 kgm3 at this density
how many electrons can be removed from element 69 before it is reduced to its core electron configuration for the
a an electron is measured to be within 10 um of a certain pont find the minimum uncertainty in the speed of the
a solid cylinder abcd radius 0150 m height 0120 m has the mass of 700 kg this cylinder is floating in water then oil