I've been tasked with designing light shades for my companies new building. The current goal is to 3D print them, and include the company logo/name on them. The lights are for design purposes only, and aren't being used to illuminate the room. The hard part is, I want the logo/name clearly...
Also if I wanted to increase the capacity of the heat exchanger, is there anything wrong with assuming the LMTD can be far smaller. If I have the air handling unit return water at 12degC and the chill water inlet at 7degC, is it practically possible to have the 12degC cooled to 7.5degC, and the...
I'm trying to design a double pipe heat exchanger for two different water lines. One line is chilled water of approximately 7degC and the other is chilled water return from an air handling unit, of around 12degC. I want to design this heat exchange for a capacity of approximately 22kW. The part...
yes you're right, this is the cross section of a 1.25km tunnel.
the x values for the first equation are -3 and 3
the x values for the second equation are 3 and 0
I have a diagram provided. The first equation covers the top half, the second equation joins onto the first equation. This will just...
I have a maths B assignment where I need to find the volume of a tunnel. We have been given two equations to describe the area of this tunnel. The teacher says that we haven't learned how to integrate at this level, and he has also said that the chain rule and product rule do not work for...
The coaster is already on a curve, it is just at one of the sides of it so the reaction force is 90 degrees. (I said vertical plane because it was easier to describe). We are doing instantaneous calculations so that would still mean friction is virtually zero right? And what must I do to avoid...
I have a physics assignment. Part of it is to calculate the speed throughout the rollercoaster and to not exceed 4.5g's of force. Anyway, I'm calculating the speed of the rollercoaster using the formula
0=g(h2-h1)+0.5(v2^2-v1^2)+μNd
(I have already simplified to not include the mass...
This is due tomorrow, I know I've left it to the last minute but hey.
Anyway I understand how to do that, but how do you work out the acceleration from timing it?
I'm currently doing an EEI with catalase and hydrogen peroxide. I'm just wondering about the effects of increasing the temperature of the catalase and h2o2. For example, if I get 50mL of oxygen produced when both are at 40°C and the reaction occurs for 8 seconds. If I decrease the temperature to...
I watched a youtube video on rate laws, it helped a fair bit. What I have done so at the moment is calculated the molarity of hydrogen peroxide used with each set of tests. The first with 1.66mL (1%) is 4.18x10^-3 mol, the second using 3.33mL (2%) is 8.4x10^-3 and so on...But I'm unsure on how...
Thankyou for replying and sorry for not replying back quickly. Anyway about the catalase concentrations. Do you think that they are too high? They have been mixed with 1% hydrogen peroxide. And the mean time for each set of experiments has decreased in a fairly linear fashion, starting from...
I'm doing an EEI on enzymes. I'm using catalase and hydrogen peroxide to produce oxygen. The oxygen is then collected into a measuring cylinder. My three variables are the concentration of catalase, concentration of hydrogen peroxide and the temperature of both. Increasing the concentration of...
Ok, so I did what you suggested. I used the formula wsintheta-Fr=ma and n=wcostheta.
Here's the results.
Wood (static): 0.762
Wood (kinetic): 0.345
Glass (static): 0.324
Glass (kinetic): 0.212
Metal (static): 0.263
Metal (kinetic): 0.140
Do these values seem reasonable?
I have a Mathematics C assignment, with one question being about static and dynamic friction. But I think it fits this forum. Anyway, we need to conduct experiments to show if there is a difference between static and dynamic friction or not with three different surfaces.
The weight of the...