Recent content by DruJohnson

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    Calculating Force from Pressure in Water Rocket Building

    Hello I am currently building a water rocket. I would like some help on finding the equation for the force that is exerted when I add air pressure to an cylindrical tube filled with water. How can I figure out the force that the water would create when I release it. I hope that someone can help...
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    Quick release latch using an electromagnet

    Thank you. I will try the solenoid idea out.
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    Quick release latch using an electromagnet

    I am currently working on a quick release latch that is using an electromagnet to open the latch. I currently have a spring attached to a bolt latch. I would like the electromagnet to be able to counter the force of the spring opening the latch. the force of the spring is about 9 Newtons...
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