184_projects:f21_project_2

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184_projects:f21_project_2 [2021/08/19 14:47] – dmcpadden184_projects:f21_project_2 [2021/09/10 13:59] (current) – dmcpadden
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 ===== Project 2 ===== ===== Project 2 =====
  
-==== Project 2A: Meanwhile Back At Stormchaser HQ====+ 
 +{{183_projects:thunder.jpg}} 
 + 
 +==== Project 2A: Chasing a Thundercloud ==== 
 + 
 +You and your group are a team of storm chasers tracking a massive thundercloud moving across the plains and into the mountains beside the town of Lakeview. You grab your handy-dandy high voltage probe ([[https://www.atecorp.com/ATECorp/media/ProductImages/L/Tektronix-P6015A_L.png|like this one]]) and radio, then drive from your headquarters 250 m until you are directly under the storm cloud. Thankfully, your team already calibrated the voltmeter to 0 V when the storm cloud was very far away. From your training, you know that if the electric field is bigger than 3 MV/m (also called the [[https://en.wikipedia.org/wiki/Dielectric_strength|dielectric breakdown of air]]), the air will become a conductor and lightning will strike. You need to determine if a) you are safe from lightning under the thundercloud and b) if the lightning rod on top of the storm-chaser headquarters will be hit. The master storm chaser and part-time civil engineer, Edric Storm, tells you that the storm-chaser headquarters is 200 m tall. 
 + 
 +<WRAP info> 
 +===Learning Goals - Project 1A:=== 
 +  * Understand what the $\vec{r}$ is, how to calculate it, and how it relates to $\hat{r}$ 
 +  * Become familiar with the ideas of electric field and electric potential 
 +  * Explain the differences between electric field and electric potential 
 +  * Explain how electric field and electric potential are related 
 +</WRAP> 
 + 
 + 
 +==== Project 2B: Meanwhile Back At Stormchaser HQ====
  
 The team back at headquarters has just received a call from the National Weather Service (https://www.weather.gov/) that they want you to take some additional data on this cloud. Apparently some of the properties of this cloud are particularly interesting, specifically due to the fact that the cloud is moving Northward, not typical of most clouds in this geographical region (see some [[https://www.physicsforums.com/threads/why-do-clouds-move-in-a-certain-direction.757627/|discussion of this here]] if you're interested). For the moment, the winds have died down and the cloud isn't moving. The team back at headquarters has just received a call from the National Weather Service (https://www.weather.gov/) that they want you to take some additional data on this cloud. Apparently some of the properties of this cloud are particularly interesting, specifically due to the fact that the cloud is moving Northward, not typical of most clouds in this geographical region (see some [[https://www.physicsforums.com/threads/why-do-clouds-move-in-a-certain-direction.757627/|discussion of this here]] if you're interested). For the moment, the winds have died down and the cloud isn't moving.
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   * Be able to explain how the code relates to the physics equations (from Week 1) and vice versa   * Be able to explain how the code relates to the physics equations (from Week 1) and vice versa
 </WRAP> </WRAP>
- 
-==== Project 2B: Building Stormchaser HQ ==== 
-You are part of a secret organization that sends task forces to investigate strange phenomenon. The name of your particular task force is S.P.A.R.T.A.N force. Your team has been sent to investigate an abnormal storm system that has encapsulated the town of Lakeview. You and your team are racing to be on the frontline to investigate this new system and as you speed toward Lakeview you receive a call from a group of scientists working at Stormchaser HQ. They explain that they have built their new base of operations (HQ) 2 km away from the mountains, which typically gather large clouds (on average, $m=1*10^9 kg$  and $q=-150 C$) to the west of the HQ. The Lakeview scientists have calibrated the equipment on top of HQ to deal with the electric potential from the large clouds, but they are concerned about an incoming storm system that is displaying abnormal qualities. As much as they would love to collect data on this storm, if the electric potential changes by more 20 MV due to the additional clouds, the equipment will be damaged. They have received reports that the storm system is heading toward HQ from the eastern plains (where the wind can last up to 20 minutes and exert a force of 36000 N) with a mass around $m=3*10^5 kg$  and a charge between $-50 C$ and $-60 C$. (For out-of-town-ers, they like to clarify that the eastern plains are roughly 500 km away.) They know that you need immediate data on the storm and would like a recommendation from your team on whether they can keep their equipment on top of HQ or if they should take it down for this storm. 
-<WRAP INFO> 
- 
-===Learning Goals:=== 
-  * Understand how electric force, electric energy, electric potential, and electric field relate to one another (and be able to calculate these quantities for a system of point charges) 
-  * Apply energy principles to a situation with charges (energy conservation, transfer of energy, system definitions, etc.) 
-  * Apply momentum/force principles to a situation with charges (momentum-force relationship, force-acceleration relationship, force diagrams, etc.) 
-  * Think about what might change when there are multiple sources of charge in the problem 
-</WRAP>  
  
  
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  • Last modified: 2021/08/19 14:47
  • by dmcpadden