Homework Physics 471J fall 2020

Please make sure your name is on all of your homeworks! Submit on google classroom


Homework 1 due 9/4/20

Do not look up anything when trying these problems. Show, initial guess and all steps in making OOM approximation.

1) What is the mass of

a) a moose

b) a blue whale?

c) a termite

2) What is a range of flows for the Chena river?


Homework 2 due 9/18/20

Do not look up anything when trying these problems. Show, initial guess and all steps in making OOM approximation.

1) Imagine a long steel rod hanging under its own weight. How does the maximum length before it breaks depend on its cross-sectional area? Remember the max yield stress is the max force over the area.

2) Given the mass of the sun is ~2 x10^30 kg and the radius of the earth is ~6x10^6 m. Estimate the mass of earth and the ratio mass of sun/mass of earth


Homework 3 due 9/23/20

 


 

 

Last updated 8 September, 2020