2/7*3/8>3/8 because 2/7>1
The answer to your math problem is 33 using pemdas
Given,
We can use L'Hopital's Rule to get,
Now plug in a,
Hope this helps.
r3t40
Answer:
4 ohms
Step-by-step explanation:
The question is "In two minutes a current of 5 amps develops 1,200 heat units in a wire of 8 ohms resistance. What resistance does a similar wire have, which develops 6,000 heat units with a current of 10 amps in 5 minutes?"
Current, I₁ = 5 A
Heat, Q₁ = 1200 units
Resistance, R₁ = 8 ohms
Time, t₁ = 2 min = 120 s
New heat, Q₂ = 6000 units
Current, I₂ = 10 A
New time, t₂ = 5 min = 300 s
We need to find the new resistance.
Heat developed is given by :
So, the new resistance is 4 ohms.
11.5 -3y= 48.5
⇒ -3y= 48.5 -11.5
⇒ -3y= 37
⇒ y= 37/(-3)
⇒ y= -12 1/3
Final answer: y= -12 1/3~