Three properties that all numerical answers must have

AI Thread Summary
Numerical answers in physics must possess three essential properties: they must be a numerical value, demonstrate accuracy, and exhibit precision. The definition of a 'numerical answer' can vary based on context, such as when calculating the magnitude of a force. Clarification on what constitutes a numerical answer is necessary for accurate responses. The discussion emphasizes the importance of understanding these properties to ensure correctness in numerical solutions. Overall, the properties of numerical answers are crucial for effective problem-solving in physics.
travis51
Messages
9
Reaction score
0

Homework Statement


This question being for my physics summer work states "List three properties that all numerical answers must have to be correct"


Homework Equations


None


The Attempt at a Solution


1. must be a numerical value?
2. must show accuracy.
3. must show precision.
 
Physics news on Phys.org
Depends what is meant by a 'numerical answer'. If the questions asks for, say, the magnitude of a force to be calculated, would you consider the answer numerical? How would you specify a force?
 
I can think of something not on you list of three things but I can't think of a hint that doesn't just give you the answer. Perhaps best answer the question haruspex asked you to consider.
 

Thread 'Errors and significant figures'

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...
View full post »
Thread 'A cylinder connected to a hanging mass'

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...
View full post »

Similar threads

Calculating Numerical Uncertainties in an Equation
Replies
20
Views
2K
What is the problem with the units in this state equation of a gas?
Replies
12
Views
1K
How to calculate gamma ray energies following beta decay?
Replies
12
Views
1K
Set up the Lagrangian for a CO2 molecule
Replies
6
Views
4K
Which Letter Represents a Star Similar to the Sun Based on Emission Spectra?
Replies
10
Views
2K
Problem related to the Bernoulli Equation
Replies
16
Views
2K
Need help with collision and conservation of momentum problem
Replies
7
Views
2K
Three-particle decay and momentum
Replies
4
Views
3K
The average velocity of the point - numerical value of t
Replies
4
Views
1K
Is enthalpy just the sum of internal energy and work against external pressure?
Replies
5
Views
934

Hot Threads

Recent Insights

Back
Top