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RubiksCube77
Nov Member 2021

RubiksCube77

Posts: 943 Gold Posts by user Forum Profile RuneMetrics Profile
Ugh messed up on my circuits exam.

I got the concept written down correctly

I was given a function that describes current and another function that describes voltage. Part of the question asked for power at t = 1s. So what I did was I multiplied the two functions to get a function for power. All of them had t (time) as a variable. Once I had the function, I plugged in 1s and solved for what power was at 1s. The next part was asking for Energy between t=0 and t=1. I know that power is equal to energy over time, so what one should do is an integral with respect to time of the power function from 1 to 0. The mistake I made was I did a derivative on the function. So what I did next was just completely useless.

The lesson here is to get enough sleep to not make mistakes on an exam.

I never seen someone mention anything on the concept of a derivative or an integral in this thread, so I think I'll take that in two posts or more this weekend. Make RuneScape Great Again usually on at 3:00 PM PST
I am the Emperor of Africa, Afrikaneer Engineer, and retired RSOF troll
The Real Bad African (shenanigans moved to YT under an assumed name)

17-Jul-2015 07:56:10

RubiksCube77
Nov Member 2021

RubiksCube77

Posts: 943 Gold Posts by user Forum Profile RuneMetrics Profile
I'm not sure if anyone else is like me, but I'm always assuming I did a terrible job on an exam. That way I wouldn't be surprised if I do get a bad grade. So I can't really say I did a good job.

I usually post something about science/engineering/math, but I do have to go do something else right now. Make RuneScape Great Again usually on at 3:00 PM PST
I am the Emperor of Africa, Afrikaneer Engineer, and retired RSOF troll
The Real Bad African (shenanigans moved to YT under an assumed name)

20-Jul-2015 07:17:13

Singularity
Aug Member 2023

Singularity

Posts: 97,457 Emerald Posts by user Forum Profile RuneMetrics Profile
That planet has another 500M years left in the habitable zone they say. If we ever do find life there, it'd only be remnants of it I guess. :|

Very strong candidate though. It would be really depressing if we found out nothing has existed in the 6 billion or so years it's been out there though..

Real shame our technology limits what we can see and do in the universe :C .

24-Jul-2015 01:22:56

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