I need to know how to express these frequencies (40GHz & 275GHz) using scientific notation, could anybody show me how to do this on a scientific calculator (step by step) please
2007-12-30 05:22:15 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
the full question is,a 100GHz of frequencies between 40 GHz and 275 GHz. express these frequencies in hertz, using scientific notation. and its way over my head lol
2007-12-30 05:28:54 · update #1
thanks for that, any idea how to do it on the windows calculator
2007-12-30 05:37:14 · update #2
40 GHz and 275 GHz.
1GHz = 10^9 Hz
so, 40 GHz = 40 GHz x (10^9 Hz/1 GHz) = 40 x 10^9Hz
or 4 x 10^10
275 GHz = 275 GHz x (10^9 Hz/1 GHz) = 275 x 10^9 Hz
or 2.75 x 10^11 Hz
So, if you're given any number with unit GHz, start from the position of the decimal point and move it to the left of the first non-zero digit. If you move to the left, add the number of movements to the exponent nine to get the new exponent of 10. If you move to the right, subtract the number of movements from the exponent nine to get the new exponent of 10.
I'm using Sharp EL- 506 W scientific calculator and I use the following steps:
Step 1: Enter the base number
Step 2: Press Exp key
Step 3: Enter the exponent of 10
Step 3: Press +/- key if the exponent is negative
Of course, the above steps will vary depending on what kind of scientific calculator you have.
teddy boy
2007-12-30 05:43:39 · answer #1 · answered by teddy boy 6 · 0⤊ 0⤋
giga = 1 billion
Write each frequency out in long form
40,000,000,000
275,000,000,000
Put a decimal point behind the first digit on the far left for each number and count the number of decimal places
4.0,000,000,000 = 10 decimal places
2.75,000,000,000 = 11 decimal places
Drop all the zeros from each number and multiply the remaining digits by 10^x where x = the number of decimal places.
4 times 10^10
2.75 times 10^12
On the calculator
4EE10
2.75EE12
2007-12-30 05:48:38 · answer #2 · answered by ikeman32 6 · 0⤊ 0⤋
well...if u're using casio scientific calculator model fx-570MS like mine...its u just punch in the number u required for example 40GHz...u push button 4 and then 0 and then push the shift button (on the uppermost part on your left just below the screen)...and then push the button 8 (u could see the small G letter near it)...and then you push the small ENG button to get your scientific notation...so thats it...hope that answers your question...:)
2007-12-30 05:33:59 · answer #3 · answered by kucing_miang81 1 · 0⤊ 0⤋
What are you converting them too?
2007-12-30 05:25:12 · answer #4 · answered by smtgrt1 3 · 0⤊ 0⤋
brrrrrrrr grrrrrrrrrrr !!!! maths phobia
2007-12-30 05:27:42 · answer #5 · answered by Anonymous · 0⤊ 0⤋
im still in secondary school
2007-12-30 05:24:46 · answer #6 · answered by Anonymous · 0⤊ 0⤋
who cares
2007-12-30 05:24:13 · answer #7 · answered by inoiroc 2 · 0⤊ 1⤋
I suck at math
2007-12-30 05:24:38 · answer #8 · answered by shygirl93 7 · 0⤊ 0⤋