5g sorry if wrong let know if it is I’ll correct it
75% is the efficiency of the cell.
Explanation:
Internal resistance is the resistance generated due to the devices present in the circuit. Most preferably, it is the resistance of the battery connected to the circuit.
As the current, resistance of the resistor and the internal resistance of the battery is given as 6 A, 6 ohms and 2 ohms.
Then the efficiency of the cell is ![E = \frac{IR}{I (R+r)} =\frac{R}{r+R}](https://tex.z-dn.net/?f=E%20%3D%20%5Cfrac%7BIR%7D%7BI%20%28R%2Br%29%7D%20%3D%5Cfrac%7BR%7D%7Br%2BR%7D)
So, the efficiency of the cell is ![E=\frac{R}{r+R}](https://tex.z-dn.net/?f=E%3D%5Cfrac%7BR%7D%7Br%2BR%7D)
Then, E = ![\frac{6}{2+6}=\frac{6}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B6%7D%7B2%2B6%7D%3D%5Cfrac%7B6%7D%7B8%7D)
So, the efficiency is 75%.
75% is the efficiency of the cell.
25 m will be taken to stop the car
Answer:
When the doctor has the syringe, it is full of air. So, now after the doctor pushes the plunger, hence the air gets released into the medicine container. After this the doctor then takes the plunger and pull it back. Now , the air gets pulled up back into the syringe, but not only does the air come in but also the medicine because of the pressure build up.
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Ngan's mass on earth is 85kg.
Ngan has a weight on Mars = 14.5 N
Ngan’s weight on Earth = 833.0 N
Ngan’s mass on Earth = ?
<span>Fg,earth = mg(earth)</span>
<span>M = Fg,earth </span><span>/ g(earth)</span>
<span>M = 833.0 N / 9.8 m/s2</span>
<span>M = 85 kg</span>