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I know I'm not supposed to ask 2 questions but if you could please help me...

I know I'm not supposed to ask 2 questions but if you could please help me on these questions it would help me so much and i will thank you endlessly, i have 2 questions left that i am stuck on but only one question left for chegg, I thank you so much in advance and I wish nothing but health and happiness for all you.

Problem 21.37 10 of 14 Constants Suppose 67 kW is to be transmitted over two 0.120 2 lines y Part A Estimate how much power i
Problem 23.90 A small object is 25.0 cm from a diverging lens as shown in the figure(Figure 1). A converging lens with a foca
Problem 21.37 10 of 14 Constants Suppose 67 kW is to be transmitted over two 0.120 2 lines y Part A Estimate how much power is saved if the voltage is stepped up from 120 V to 1200 V and then down again, rather than simply transmitting at 120 V Assume the transformers are each 99% efficient Express your answer using two significant figures. Pal AΣΦ. ? Psaved - 35.7 kW Submit Previous Answers Request Answer X Incorrect; Try Again; 1 attempts remaining Next > Provide Feedback
Problem 23.90 A small object is 25.0 cm from a diverging lens as shown in the figure(Figure 1). A converging lens with a focal length of 11.5 cm is 30.0 cm to the right of the diverging lens. The two-lens system forms a real inverted image 17.0 cm to the right of the converging lens Part A What is the focal length of the diverging lens? Figure 1 of 1 ΟΙ ΑΣΦ ? f- cm Submit Request Answer 30.0 cm 17.0 cm 25.0 cm t < Return to Assignment Provide Feedback
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arriving Solution a) Without transformers: Power at the town is 67kW. Since power is transmitted over two 0:12_2 Lines. .. InWhen V=1200 V I = 33. 5x108 -27.91 A. 1200 Power Lost in the way in each line = IZR (27.913 X0:12 = 93.47 W. oo power lost in- ㅗ 17 1 = ) - x 17 (-x) 1105 its ☆ towards left of the converging x= 35.54 cm lens. It means Image lens formed by diverging

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