Measuring the Height of Mountains on the Moon

AI Thread Summary
To measure the height of mountains on the Moon using similar triangles, start by identifying three prominent lunar mountains, such as the Apennine Mountains, the Caucasus Mountains, and the Altai Mountains. The heights of these mountains can be found through lunar maps or scientific resources, typically ranging from about 1 to 3 miles. Calculate the height using the proportions of similar triangles based on the measurements taken from a lunar image. Additionally, determine the percentage error and uncertainty in your calculations to assess accuracy. Utilizing resources like Google Moon can aid in visualizing and measuring these lunar features effectively.
bababooey
Messages
2
Reaction score
0
Hi,

We have an assignment in my physics class and I am not sure where to start. We are suppose to duplicate Galileo's experiment, using the concept of similar triangles to calculate the height of the object.

1. What is the height of the three objects on the moon in miles?
2. What are the names of the mountains you are measuring?
3. %Error/%Uncertainty

He had us circle 3 objects on the moon image he printed out for us. I am assuming they are well known because he wants us to find out the names of them. I have no idea where to start and would appreciate any help.

Thank you
 
Physics news on Phys.org
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 '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