Confused About Commas: Explaining Values & Usage

  • Thread starter Thread starter danielsmith123123
  • Start date Start date
  • Tags Tags
    Confused
AI Thread Summary
The discussion clarifies the meaning of the comma in the expression "R1= R2, R3 =150 Ω," indicating that it separates two distinct facts: R1 equals R2 and R3 equals 150 Ω. Participants emphasize the importance of providing the full question and diagram for better assistance. The original poster expresses relief upon understanding the explanation, acknowledging they were overthinking the issue. The conversation highlights the need for clarity in circuit problems and the role of punctuation in conveying information. Overall, the thread effectively resolves confusion regarding the comma's usage in the context of electrical resistance values.
danielsmith123123
Messages
26
Reaction score
4
Homework Statement
In the circuit in Figure 15,
R1= R2, R3 =150 Ω,
Relevant Equations
Find the equivalent resistance of this parallel circuit.
I am just confused on what the comma means. Can someone explain what each value would be or the explanation?
 
Physics news on Phys.org
danielsmith123123 said:
Homework Statement:: In the circuit in Figure 15,
R1= R2, R3 =150 Ω,
Relevant Equations:: Find the equivalent resistance of this parallel circuit.

I am just confused on what the comma means. Can someone explain what each value would be or the explanation?
It would help us help you if we could see the whole question, including any diagram.
But the comma in R1= R2, R3 =150 Ω Just means there are two given facts:
R1= R2
and
R3 =150 Ω.
 
haruspex said:
It would help us help you if we could see the whole question, including any diagram.
But the comma in R1= R2, R3 =150 Ω Just means there are two given facts:
R1= R2
and
R3 =150 Ω.
 

Attachments

  • ec1.PNG
    ec1.PNG
    13.3 KB · Views: 130
haruspex said:
It would help us help you if we could see the whole question, including any diagram.
But the comma in R1= R2, R3 =150 Ω Just means there are two given facts:
R1= R2
and
R3 =150 Ω.
Oh, i see it now, I was overthinking it a lot. Thank you and sorry
 
Thread 'Variable mass system : water sprayed into a moving container'
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 thinking using 2 purple mattress samples, and taping them together, I do want other ideas though, the main guidelines are; Must have a volume LESS than 1600 cubic centimeters, and CAN'T exceed 25 cm in ANY direction. Must be LESS than 1 kg. NO parachutes. NO glue or Tape can touch the egg. MUST be able to take egg out in less than 1 minute. Grade A large eggs will be used.
Back
Top