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radius of the first bohrs orbit of hydrogen atom is1106 aring
julie had 500 she spent 20 of it on clothes and then 25 of the remaining money on cds how much money did julie spendfind out 20 of 500 by multiplying
explain an amniocentesisan amniocentesis is a process used to obtain a small sample of the amniotic fluid which surrounds the foetus to diagnose
joey has 30 pages to read for history class tonight he decided in which he would take a break while he finished reading 70 of the pages assigned how
peter purchased 14 latest baseball cards for his collection this increased the size of his collection through 35 how many baseball cards does peter
visible range of hydrogen spectrum will contain the following series1 pfund2 lyman3 balmer4 brackettans
the energy of a photon is calculated by1 e hv2 h ev3 h ev4 e hvans e
cory purchased a frying pan which was on sale for 30 off she saved 375 along with the sale what was the original price of the frying panuse a
determine what the abnormal levels of afp signalabnormal levels of afp may signal the following open neural tube defect ontd down syndrome other
which one of the following is considered as the main postulate of bohrs model of atom1 protons are present in the nucleus 2 electrons are
explain the alpha fetoprotein screening afpthis is a blood test that measures the level of alpha-fetoprotein in the mothers blood during pregnancy
brian is a real estate agent he forms a 25 commission on each sale during the month of june he sold three houses the houses sold for 153000 299000
explain the common tests during pregnancypregnancy as you may have realized is a period of physiological stress to ensure a successful pregnancy few
using a wheel and axleuse the pencil sharpener that you used in experiment a 8 pull on the end of the string that held the books and observe how
michael scored 260 points during his junior year on the school basketball team he scored 20 more points during his senior year how many points did he
using a pulleyuse the pulley set-up shown in experiment a 12 apply the force on the movable pulley and get how rapidly the weight on the other end of
a pair of pants costs 24 the cost was decreased by 8 what is the new cost of the pantsif the cost of the pants is decreased by 8 the cost of the
using a leverdetermine that the longer end of a lever travels farther and faster than the shorter end when the fulcrum is not in the centre a
an egg beater study an egg beater hand drill or some other device in which an enhance of speed is obtained by means of
using a bicycleturn a bicycle upside down so that it rests on the seat and handlebars turn the pedal wheel precisely one turn and note the number of
in hydrogen spectrum the different lines of lyman series are present is1 uv field2 ir field3 visible field4 far ir fieldans uv
if 967234 is divided by 10 how will the decimal point moveit will move one place to the left while dividing by multiples of 10 the decimal point is
explain the menopausal symptomsmenopausal symptoms includei hormone-related gynaecological problems that occur around the menopause andii
lucys lunch is sending out flyers and pays a bulk rate of 149 cents per piece of mail if she mails 1500 flyers what will she paymultiply the price
the specific charge of proton is 96 x 106 ckg-1 then for an alpha-particle it will be1 384x 10 7