Recent content by smeiste

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    Bernoulli's law for water coming out of a faucet

    Okay, thank you for the formula. It's not something that has ever been introduced in class though. I will bring it up with my professor. Thanks!
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    Bernoulli's law for water coming out of a faucet

    haha yes it is. Thank you! I think that form of the equation is a combination of Bernoulli's law and Pascal's Law
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    Bernoulli's law for water coming out of a faucet

    okay, now I see. so patm + ρgh + 1/2ρ(v1^2) = p2 + 1/2ρ(v2^2)? Would that be the formula?
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    Bernoulli's law for water coming out of a faucet

    Homework Statement Water is supplied to a building through a pipe of radius R = 3.0cm. In the building, a faucet tap of radius r = 1.0cm is located 2.0m above the entering pipe. When the faucet is fully open, it allows us to fill a 25-L bucket in 0.5 minutes. What is gauge pressure in the...
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    Buoyancy force of a hot-air balloon

    ohh i see. I just went too far with the problem haha. Thank you!
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    Buoyancy force of a hot-air balloon

    i honestly have no idea what moles I calculated.. There was a similar question only it wanted the temperature inside the balloon and I tried to do a similar thing. I don't really understand what density I calculated either.
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    Buoyancy force of a hot-air balloon

    umm n is the number of moles. n hot air is the number of moles in the balloon at 108 degrees Celsius. I'm not entirely sure what exactly I did haha. and I used the density I calculated 3885 kg/m^3. I probably did it all wrong
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    Buoyancy force of a hot-air balloon

    Homework Statement The envelope and basket of a hot-air balloon have combined mass of 331 kg. The spherical envelope of the balloon has a radius of 10 m when fully inflated. What is the maximum mass of the passengers the balloon can carry when the temperature of the gas is 108 o C? Use...
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    Applying ln to a graph: where would it be continuous?

    ohh okay. so the answer is B?
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    Applying ln to a graph: where would it be continuous?

    from zero to infinity
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    Applying ln to a graph: where would it be continuous?

    um positive numbers only.
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    General limit formula: limit of 1/(1+2e^-x)

    yeah this was a question on my midterm before we had even learned L'Hospitals rule. So i don't know how they expected us to solve it haha.
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    Applying ln to a graph: where would it be continuous?

    Homework Statement Homework Equations I'm looking over in old midterm to prepare for a final and can't figure out what the correct answer is. No answers were ever given. I'm not cheating on anything, would just like to know what the correct answer is and why :) The Attempt at a...
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    Does the lim x→0 of (x^4)(sin1/x) exist?

    that since the limits on both of those sides equals 0 then the limit must also equal 0. that is extremely helpful. Thank you!
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    Does the lim x→0 of (x^4)(sin1/x) exist?

    awesome. thanks guys!