Check Your Understanding Figure 1.4 says the mass of the atmosphere is 10 1 9 kg . Assuming the density of the atmosphere is 1 kg/m 3 , estimate the height of Earth’s atmosphere. Do you think your answer is an underestimate or an overestimate? Explain why. How many piano tuners are there in New York City? How many leaves are on that tree? If you are studying photosynthesis or thinking of writing a smartphone app tot piano tuners, then the answers to these questions might be of great interest to you. Otherwise, you probably couldn’t care less what the answers are. However, these are exactly the soils of estimation problems that people in various tech industries have been asking potential employees to evaluate their quantitative reasoning skills. If building physical intuition and evaluating quantitative claims do not seem like sufficient reasons tot you to practice estimation problems, how about the fact that being good at them just might land you a high-paying job? For practice estimating relative lengths, areas, and volumes, check out this PhET (https://openstaxcollege.org/l/21lengthgame) simulation, titled “Estimation.”
Check Your Understanding Figure 1.4 says the mass of the atmosphere is 10 1 9 kg . Assuming the density of the atmosphere is 1 kg/m 3 , estimate the height of Earth’s atmosphere. Do you think your answer is an underestimate or an overestimate? Explain why. How many piano tuners are there in New York City? How many leaves are on that tree? If you are studying photosynthesis or thinking of writing a smartphone app tot piano tuners, then the answers to these questions might be of great interest to you. Otherwise, you probably couldn’t care less what the answers are. However, these are exactly the soils of estimation problems that people in various tech industries have been asking potential employees to evaluate their quantitative reasoning skills. If building physical intuition and evaluating quantitative claims do not seem like sufficient reasons tot you to practice estimation problems, how about the fact that being good at them just might land you a high-paying job? For practice estimating relative lengths, areas, and volumes, check out this PhET (https://openstaxcollege.org/l/21lengthgame) simulation, titled “Estimation.”
Check Your Understanding Figure 1.4 says the mass of the atmosphere is
10
1
9
kg
. Assuming the density of the atmosphere is
1 kg/m
3
, estimate the height of Earth’s atmosphere. Do you think your answer is an underestimate or an overestimate? Explain why.
How many piano tuners are there in New York City? How many leaves are on that tree? If you are studying photosynthesis or thinking of writing a smartphone app tot piano tuners, then the answers to these questions might be of great interest to you. Otherwise, you probably couldn’t care less what the answers are. However, these are exactly the soils of estimation problems that people in various tech industries have been asking potential employees to evaluate their quantitative reasoning skills. If building physical intuition and evaluating quantitative claims do not seem like sufficient reasons tot you to practice estimation problems, how about the fact that being good at them just might land you a high-paying job?
For practice estimating relative lengths, areas, and volumes, check out this PhET (https://openstaxcollege.org/l/21lengthgame) simulation, titled “Estimation.”
Since 1 cubic cm= 1mL, then how many cubic cm are there in a liter?
How big is a ton? That is, what is the volume of somethingthat weighs a ton? To be specific, estimate the diameter ofa 1-ton rock, but first make a wild guess: will it be 1 ftacross, 3 ft, or the size of a car? [Hint: Rock has mass pervolume about 3 times that of water, which is 1 kg per liter (103 cm3 or 62 lb per cubic foot.]
Given the density of iron as 7800 kg/m 3 , and the Earth radius is 6.38 x 10 6 m, if 55% of the Earth's volume is filled with Iron, and 45% is filled with rocks that has a density of 2600 kg/m 3 , what is the total mass of the Earth?
I am looking for the total mass. m=densityxvolume, but am confused as im not such if i take 55% of irons density and 45% of the rocks density?
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Physics CH 0: General Introduction (14 of 20) How to Estimate Number of Teachers in US; Author: Michel van Biezen;https://www.youtube.com/watch?v=GBv_JLUzM-M;License: Standard Youtube License