Recent content by eekoz

  1. E

    Real life application of thermodynamics: Heat transfer/capacity/energy

    What are some real life applications of those that were developed in the past 10 years?
  2. E

    Quick question: Grade 12 stuff (Heat capacity)

    Why is it T(initial, washer) - T(final)? Shouldn't it be T(final) - T(initial, washer) - in the conservation of energy equation that you posted.
  3. E

    Quick question: Grade 12 stuff (Heat capacity)

    So what you're saying is, the bunsen flame's temprature is the change of temprature of the water + the rate of temprature of the washer? I can calculate both, so I can just add them up to get the total change (AKA the temprature gained by the flame or in other words the temprature OF the...
  4. E

    Quick question: Grade 12 stuff (Heat capacity)

    Chemistry question: Grade 12 stuff (Heat energy) So we're going to have a lab soon, and its goal is to find the heat energy value (Q). We're going to take a beaker filled with water, record its mass and initial temprature, and then bring a really hot iron washer inside and record its final...
  5. E

    Related rates - some problems =)

    I got a rate of Sqrt(3)/10 m/h, is that correct? Thanks for the help!
  6. E

    Related rates - some problems =)

    Okay, so for the softball question I'm pretty sure I got that - the pyth theorem.. I got a speed of 1.7 m/s - I hope it's right (a confirmation would be good) For the second question, I found the height of the triangles would be the sqrt(3) and the base to be 2, but not sure where to go from...
  7. E

    Related rates - some problems =)

    I've been practicing related rates problems, and I want to confirm a few things. - When a pebble is dropped in water producing a circular wave, the rate that it travels outward is the rate of the changing radius, correct? In other words, dr/dt? Also, I have two questions I can't really...
  8. E

    Proving OG = 1/3(OA + OB + OC) in Triangles | Step-by-Step Explanation

    Okay, so I have a triagle with vertices A, B, and C. I know that the centroid, G, is where all the medians of the triangle intersect, and G divides the median at a 2:1 ratio Assuming point O is a point that's not on the triangle, how can I prove: OG = 1/3(OA + OB + OC) ? I've seen this...
Back
Top