Scientific Notation I feel dumb for even asking

AI Thread Summary
The discussion centers on a problem requiring an answer in scientific notation, specifically in the form of a base number and an exponent. The initial answer provided was 9.782701624,1, which was deemed incorrect due to excessive digits. The correct format should reflect two decimal places, leading to the answer 9.78,0. Participants emphasized the importance of matching significant figures with the numbers given in the problem, highlighting the frustration with the program used for calculations. The final resolution clarified that the answer needed to be simplified to maintain consistency with significant figures.
mcknia07
Messages
284
Reaction score
8
The problem is attached...

It asks for the answer to be shown in the form a,k. Whereas a is the base number and k is the exponent, with using the form of scientific notation.The answer I came up with was 9.782701624,1. I was told it's wrong and I don't know what the real answer would be then. I figured it out like 10 times.

Any help would be nice. Thanks!
 

Attachments

  • phys.1.gif
    phys.1.gif
    1.3 KB · Views: 662
Physics news on Phys.org
mcknia07 said:
The problem is attached...

It asks for the answer to be shown in the form a,k. Whereas a is the base number and k is the exponent, with using the form of scientific notation.The answer I came up with was 9.782701624,1. I was told it's wrong and I don't know what the real answer would be then. I figured it out like 10 times.

Any help would be nice. Thanks!

Too many digits.

All of the numbers are given to 2 places after the decimal.

The answer should be as well. 9.78 x 101
 
Thank you Lowly

That was actually like my first answer according to like the rule of thumb of significant figures.

With that answer I got the response... According to your answer, you got 97.8. Is this correct? Check your calculations.

Ok I just figured it out, they wanted 9.78,0...I hate this program that I have to work with, it sucks majorly.
 
You need to give your answer to the same number of significant digits as the numbers in the problem.
 
I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
Thread 'Collision of a bullet on a rod-string system: query'
In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
Thread 'A cylinder connected to a hanging mass'
Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
Back
Top