Recent content by guitar

for starters i see 4 digits for all the hex digits from 0 to F. for example bit pattern for the hex digit 3 is 0011(4 bits)...please elaborate on this.

Homework Statement How many cells can be in a computer`s main memory if each cell`s address can be represented by 2 hexadecimal digits? what if 4 hexadecimal digits are used? Homework Equations N/A The Attempt at a Solution ok, i tried and other people helped and i am stuck...

sorry for a reply long overdue. THANK YOU TONS, especially for breaking down the process of obtaining a formula from another.

so i have to use the first formula? and i`d like to know how exactly the second formula for m1 was obtained from the first one.

the mass of the moon is about 7.5*10^22 kg and its diameter is about 3.5*10^6 meters. calculate the weight of a 70 kg person on the moon. so we got F=G*m1*m2/d^2 G=6.67*10^-11N*m^2/kg^2 to find the mass we can use m1= F*d^2/m2*G (how did we manipulate the first formula to get this? no...