Total # Posts: 4
An element has a body centred cubic structure with edge cell of 288 pm .The density of the element is 7.2 g/cm3.How many atoms are present in 208g of the element.
November 8, 2012
Two balls of masses 5 kg and 15kg are separated by a fixed distance of 0.8m. find the position of the centre of mass of system
February 21, 2012
explain the significance of the negative sign in gravitational potential energy?
February 20, 2012
complete the following reaction: 1.CH3-CH-_CH2+H2O 2.CH2-CH2+Br2
February 19, 2012