Recent content by metz143

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    How Can We Improvise Buoyancy Control for a Mini-Submarine Without Using a BCD?

    my group are now choosing either to use fiberglass or just pvc..but were also looking a pvc that is also transparent. We made a sketch for our mini-sub..i'll try to post it this weekend. BTW, some submersible water pumps for aquariums have motors that are already enclosed and waterproof. We ask...
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    How Can We Improvise Buoyancy Control for a Mini-Submarine Without Using a BCD?

    how much will it cost us if we purchase customize fiberglass?
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    How Can We Improvise Buoyancy Control for a Mini-Submarine Without Using a BCD?

    actually when we will have the demo on a 3 to 5 ft aquiruim probably.but when we test our project may be we're going to a pool and have the mini-sub test if it would operate to the way we want it. We are also putting a pressure sensor on our mini submarine..do you guys know any pressure...
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    How Can We Improvise Buoyancy Control for a Mini-Submarine Without Using a BCD?

    our depths limit is just around 15 to 20 ft. My group discussed the idea of having like a inflattable tube in between our inner and outer hull..and just have a pressure switch..in order for us to control the amount of pressure in order for the mini-sub to submerge and resurface. We also are...
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    How Can We Improvise Buoyancy Control for a Mini-Submarine Without Using a BCD?

    Thanks guys for you ideas..i'll be updating soon.We'll be starting experimenting this weekend..Thanks.. :)
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    How Can We Improvise Buoyancy Control for a Mini-Submarine Without Using a BCD?

    Hello! my group are designing ofwhat we called a mini-submarine..it is somewat like an underwater surveoyr..but in a submarine form of construction. our adviser told us, that we could use a buoyancy controlling device to address our problem of getting our mini-submarine to float and...
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    Can anyone give me an idea on these probs

    Hello. Our instructor gave us 2 sets of problems. Deadline is on monday. If anyone can share his / her idea, I would really appreciate it. Here are the problems: 1. Two positive point charges q and q2 are moving relative to an observer at point P; P measures the forces on the charges...
  8. M

    Questions on Magnetic Induction

    Yes, i tried to answer question 5..but got it wrong..i keep solving it but still i didn't get it right.
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    Questions on Magnetic Induction

    1.Why must you use insulated copper wire for the coils of an electromagnet? 2. How does the strength of a wooden core electromagnet compare with that of the iron electromagnet? 3. How does the magnitude of the current affect the strength of the electromagnet? 4. How does the number of turns...
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    Resistance of n Resistors in Series & Parallel: Solve n,N & R

    Question 1: A group of n resistors each of resistance R, are connected in series. What is the total resistance?What is the total resistance if the resistors are connected in parallel? Questions 2: A series-parallel group of resistors each of resistance R, have n equal resistances in series...
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    Question anyone dare to answer?

    Question. Anyone dare to answer? Question1: A uniform electric field is parallel to the x-axis. Inwhat direction can a charge be displace in this field without any external work being done on the charge? Question2: Why is it that under static conditions, all points in a conductor must be at...
  12. M

    This problem confuses mecan anyone give me an idea on how to do this problem

    Potential Difference Problem..Help! :smile: Problem: Two parallel plates having equal but opposite charges are separated by 12mm. Each plate has a surface charge density of 36.0 nC/m2. A proton is released from rest at the point near the positive plate. Determine: The potential difference...
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