Hi guys, Iv been stuck on this for well over an hour now, so I decided to use a equation rearranger online. However it gave me this, I just wanted to know what the value of 'W' is and how they got to that answer. Thanks in advance.
Hello there, just a quick question.
How deep can you drill into the ground before reinforcement is required? Iv watched a video on deep sea drilling and it says they drill down so far then send concrete down for reinforcement then drill again with a smaller drill. So I was just wondering how far...
yeah, i realized the area thing the day after writing this and to get a greater force the volume should be the smallest as possible hence why i said the R and r below 1 because it grows exponentially if its above 1 however the smaller the volume the less mols i can fit into it and when the...
i also done some excel work to calculate the final velocity. i did some preliminary tests before this to find out the best optimum values for R, r and L. could you also check if the working is correct on these? iv included the formula view, so you can check.
hello, I'm wanting to make an air pressure cannon and am trying to mathematically find out how to get the highest muzzle velocity, could someone please check over my working and let me know of any mistakes and perhaps offer suggestions on how to improve my cannon.
if my maths is correct am...
oops what a silly mistake but as you can still see its higher than the first test. but if i do use 7°C it becomes lower but that doesn't answer why my reasoning is wrong. what am i doing wrong in my reasoning? surely as the second is more efficient as less thermal energy is lost due to the...
Homework Statement
earlier today i was doing some coursework to find the specific heat capacity of an unknown metal by submersing 100g / 0.1kg of the metal in boiling water above 75°C and record the temperature after 30 seconds (θm).
we then had to transfer the the metal from the boiling water...
hi, everyone.
something iv been pondering recently, is there a set speed at which something burns up in the air/atmosphere, or is it more to do with the surface area of the object traveling through the air, which would mean more of a drag force which means that the extra energy transforms to...
iv read before that anti matter / positrons to be precise are used in medical PET and are produced by radioactive decay. what do you know of this and could we not gather it from this process rather than the LHC at CERN?
hello everyone, i wasn't sure what category this should go under so General Physics was the safest bet.
to my understanding when antimatter and normal matter collides its a 100% conversion into light, is this correct?
if so, the conservation of mass says all the mass that was originally there...
okay, if the power of the crane remains the same it could achieve a higher speed if it reduces the force, right? we could simply increase the height of my catapult (as people have been calling it) and/or reduce each payload. meaning more time to accelerate and less force needed to accomplish...
no this is just for launching dead things. i still want rockets for people.
plus
how about a 1000 ton press? presses tend to move much faster than cranes?
hello everyone.
just wondering with development in modular robotics, could we possibly throw a space station into space bit by bit via something as simple as a pulley system?
doing a bit of research i found out you can get a 1000 ton crane, therefore 9,800,000N of force, i also found out that...
hello everybody,
just doing some general designing and was wondering what is the greatest mechanical force we can achieve already, in the form of a piston or a press. i am not to sure how, just want to know the value and how its achieved.