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a small spherical cavity of radius r is made in a large electrics a dielectric material of constant polarization p
a 21496g sample of magnesium is burned in air to form magnesium oxide and magnesium nitride when the products are
in the figure below block 1 of mass m1 slides along an x axis on a frictionless floor with a speed of v1i 240 ms then
a draw and name all isomers for 12-difluorocyclopentane indicate which ones are chiral and which ones are non-chiralb
a wave on a string has a speed of 331 ms if the tension in the string is 143 n and its length is 18 m what is the mass
a solution of acetic acid is prepared in water by adding 111 g of sodium acetate to a volumetric flask and bringing the
a 40m deep swimming pool measures 28m by 11m its filled with fresh water what force does the water exert on the bottom
the mass of an electron is 911times 10-31rm kg if the de broglie wavelength for an electron in a hydrogen atom is
a think disk of radius r carries a surface charge sigma it rotates with angular frequency omega about the z axis which
a point source of light illuminates an aperture 200 away a 150 -wide bright patch of light appears on a screen 200
suspend an ideal spring vertically from a ceiling and attach an object to the other end and then slowly lower the
the density of pure silver is 105 gcm3 at 20degc if 525 g of pure silver pellets is added to a graduated cylinder
two thin lenses with a focal length of magnitude 195cm the first diverging and the second converging are located 146cm
every measurement has a measurement uncertainty discuss how precise and accurate measurement can be achieved in spite
when a water gun is fired while being held horizontally at a height of 100 m above ground level the water travels a
a boy kicks a football with an initial velocity of 280 ms at an angle of 3000 above the horizontal what is the highest
write the formula for the name or name for the formula of each acid below type your answer using the format copperii
two spacecraft carrying identical pendulum gravity meters have landed on mars one at the equator and one at the north
the flowmeter shown in the figure measures the flow rate of water in a solar collector system the flowmeter is inserted
write an empirical formula for each of the following type your answer using the format co2 for co2a ethylene glycol car
give the systematic names for the formulas or the formulas for the names type your answer using the format copperii
a laser emits a monochromatic beam of wavelength lambda which is reflected normally from a plane mirror receding at a
what monatomic ions do iodine z 53 and aluminum z 13 form type your answer using the format cu for cu and cu2 for
you irradiate some tumor cells with x rays in a pure nitrogen atmosphere and you find that 10 of the cells survive a
a heat engine operating between energy reserviors of 11994 oc and 46275oc has 3502 of the maximum possible efficiency