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a projectile is fired with an initial speed of 607 ms at an angle of 354 above the horizontal on a long flat firing
balance the equation and calssify the reactions if an oxidation reduction occurs write the half reactions and identify
a uniform solid right circular cylinder rolls down an 400 m incline without slipping how fast will the cylinder be
a diver running 27 ms dives out horizontally from the edge of a vertical cliff and 20s later reaches the water belowa
what is the molarity of a solution made by dissolving 100 grams of hcl in enough water to make 100 ml of
what is the ph of a solution created by mixing 200 ml of a 159 m nahso3 solution with 207 ml of a 111 m na2so3
a skater of mass 815 kg initially moves in a straight line at a speed of 470 ms the skater approaches a child of mass
consider the titration of a 240 ml sample of 175 m of ch3nh2 with 155 m hbr determing each of the followinga initial
a constant uniform electric field points in the positive x-direction with the magnitude of 500 nc a charged particle
i although electromagnetic energy behaves as both waves and particles this kind of wave-particle duality is not
a man of mass 770 kg walks down the aisle of an airplane at a speed of 170 ms in the forward direction while the plane
an object is placed 100 cm in front of a diverging lens of focal length -25 cm a converging lens of focal length
the solubilty of suberic acid is 014g100ml of water or 056g100ml of ether calculate the volume of ether needed to
a person with a mass of 52 kg runs with a speed of 68 ms jumps onto the outer rim of a merry-go-round the
when 300 g potassium carbonate k2co3 was mixed with 200 ml of hydrochloric acid hcl 40m in a calorimeter the
a point source of electromagnetic waves emits waves uniformly in all directions at a distance of 100 m from the source
phenol c6h5oh is a weak organic acid suppose 0515 g of the compound is dissolved in exactly 125 ml of water the
electrons are ejected from sodium metal by any light that has a wavelength shorter than 544 nm what is the kinetic
a 427 gm sample of so 2 occupies 230l at 382 degrees celcius what pressure in atmospheres will the gas
a photocathode whose work function is 25 ev is illuminated by white light of wavelength range from 380 nm to 720 nm
a sample of argon gas occupies 4000 l at 2500 degrees celcius at what temperature in degrees celcius would the gas
a sample of chlorine gas occupies 825 ml at 1250 torr what volume will the chlorine occupy at 350
x rays diffract from a crystal in which the spacing between atomic planes is 0168 nm the second-order diffraction
a 300g lead weight initially at 108degc is submerged in 777g of water at 529degc in an insulated containerwhat is the
a deuteron particle the nucleus of an isotope of hydrogen consisting of one proton and one neutron and having a mass of