Physics
posted by Autumn .
Talking about significant figures, my Physics textbook lists 5 rules for determining significant figures. 1) All nonzero digits are significant. 2) Zeros to the right of nonzero digits in a number containing a decimal point are significant. 4) Zeros to the right of the decimal point, but the left of the first nonzero digit (such as .000324) are significant. 5) Zeros between nonzero digits (such as 26,007) are significant. I'm stuck on #3, which says: Zeros at the end of a number without a decimal point are ambiguous. It then lists a few examples: In 6800 there are two significant digits. In 10,000 there is one significant digit. In 650 there are three significant digits. Why is the zero in 650 significant, but not in 6800 and 10,000? Sorry if this question is confusing. Thanks for any and all help! :)
Respond to this Question
Similar Questions

Science (Chemistry!)
I just do not understand ANYTHING about multiplying/dividing/adding/subtracting significant figures! For example, the problem is: Solve the following to the correct number of significant figures: (5.039)(0.0074) What am I supposed … 
math
significant numbers 2.8723 * 1.6 = 4.59568. Is it 4.6 because it is the smallest number you are multiplying it by in the sum? 
Science
I'm a little confused when it comes to significant figures. Where it doesn't make sense to me is when zeros come before and after a number. For example: My book states that zeros that come before a digit are NEVER significant. Now … 
Physics
Calculate the answer for the following question and state the answer with the correct certainty and units. Given the values of b and h, find A. b=3.2 cm, h=10.1 cm A=1/2bh The answer is 16 cm^2, which was rounded to two significant … 
chemistry
this is over significant digits. Indicate how many significant figures are in each of the following measurements: e) 4.0 X 105 kg i got 1 significant digit, but i'm not sure it if it's right... (& i can't ask my teacher, the situation … 
Physics  bobpursely
State the number of significant figures. 1) 809 Answer : 3 2) 0.0060 Answer : 5? 
Chemistry
I have a Chemistry question which should be very simple but I do not know what significant figures are. Assuming the following numbers are measurements and using the rules for significant figures, determine the answer for the following … 
Significant Figures
I'm having a hard time with significant figures. Any help would be appreciated. The first one is 0.0000000502. I put that it has three significant figures. Is this correct? 
Chemistry
Hi guys! I just learned about significant figures today, and I have a question about them. My teacher gave us a problem where all values have what I think is four significant figures (like 44.56) except the value for temperature (which … 
physics
round of the following digits 3.65*105(upto are place of decimal) 0.882026(upto three significant figures) 311.299(upto four significant figures) 4.783(upto two significant figures)