physics
a 125 cm long string has a mass 2.0g and it is stretched with a tension of 7.0 IN between fixed support
6th math
3.250kilogram
math
what is the common ratio for this geometric series? 15 11 7 3 .5
chemistry
1.what is meant by atomic number of an element? 2.the mass number of an element is 18,it contains 7 electrons.what is the number of protons and neutrons in it?what is the atomic number of the element? 3.an element has an atomic number of 11 and its mass number is 23?what is th...
chemistry
this questions are related to class9 and the academic sessions hasn't started but since i'm n IIT student we have been given a lot of assignment for the holidays and the portion has to be done. so it would be alot of help if you help me. PLEASE HELP ME I NEED IT
chemistry
1. name the three fundamental particles present in an atom? mention the masses of the particles in M.K.S. system? 2.what is a proton? stste its relative mass and charge? 3.how many times a proton is heavier than an electron? 4.what important information are furnished about the...
chemistry
1 the mass of one mole of electron is ...... mg. 2 copper(I) ions contains .......... electrons in its 3rd orbitals 3 if both K and L shells of an atom are full,what is the total number of electrons contained in them? 4 what is maximum number of electrons which can be accommod...
chemistry
1state relative mass and charge of an electron 2 an atom of an element X may be written as 4X^9 (a)What does the figure 9 indicate? (b)what is the number of protons in an atom X? (c)what is the number of electrons in an atoms X? (d)what does the number 4 indicate? 3 describe t...
english
whole history from early man to indus valley civilization.
chemistry
1 The size of cation is ...... and the anion is ........ than atom. 2 The removal of an electron from an atom results in the formation of a ....... the size of which is ........ than that of the atom.
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