- #1
jKotha
- 30
- 0
Please look at the attached Microsoft word document because I don't know how to write out everything in this template. I need help with algebra, thanks!
AI Thread Summary
The discussion revolves around a request for help with algebra, specifically related to circuits and equations. The original poster is struggling with a specific equation involving multiplication and common denominators, indicating confusion about the steps taken. A participant points out potential errors in the multiplication process and questions the correctness of the denominator used in the equation. They suggest that a clearer view of the entire problem is needed to provide accurate assistance. Overall, the conversation emphasizes the importance of careful setup and attention to detail in algebraic equations.
- #2
Axiom_137
- 7
- 0
What is the What?
What is the question you are trying to answer?
(The zeroth step in answering a question.)
~A137
What is the question you are trying to answer?
(The zeroth step in answering a question.)
~A137
- #3
hage567
Homework Helper
- 1,509
- 2
When you were trying to multply through in the common denominator step,
-132E-33I3(330R) - 20I3(200R) -20E = I3
660R
it looks like you are multplying twice?
I don't understand what you are doing there. Also, your denominator isn't correct, what does R*R give you? Be very careful with your signs.
It would help to see the entire problem, especially since I didn't get the same answer as your instructor. Maybe you haven't set up the equation properly?
-132E-33I3(330R) - 20I3(200R) -20E = I3
660R
it looks like you are multplying twice?
I don't understand what you are doing there. Also, your denominator isn't correct, what does R*R give you? Be very careful with your signs.It would help to see the entire problem, especially since I didn't get the same answer as your instructor. Maybe you haven't set up the equation properly?
Last edited:
Neglect gravity other than that of water; neglect friction.
F1=ρgsh=1000*10*1*(1+4)=50000 N;
F1=ρgsh=1000*10*0.1*4=4000 N;
F3=50000-4000=46000 N?
Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system
$$M(t) = M_{C} + m(t)$$
$$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$
$$P_i = Mv + u \, dm$$
$$P_f = (M + dm)(v + dv)$$
$$\Delta P = M \, dv + (v - u) \, dm$$
$$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$
$$F = u \frac{dm}{dt} = \rho A u^2$$
from conservation of momentum , the cannon recoils with the same force which it applies.
$$\quad \frac{dm}{dt}...
I was told forces are vectors so they can be divided into x and y components, but what about the normal force or the force of static friction? do you divide those into x and y components if say you had a block that was lying on an angled surface?
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