🌙꧁༺Huyết Nguyệt Sát Thần༻꧂🌙 (╬ಠ益ಠ)

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(Thường được cập nhật sau 1 giờ!)

a) Tính \(R_{1} , R_{2}\)

Khi mắc nối tiếp

Điện trở tương đương:

\(R_{n t} = \frac{U^{2}}{P_{1}} = \frac{12^{2}}{4} = \frac{144}{4} = 36 \Omega\)

\(R_{1} + R_{2} = 36 \left(\right. 1 \left.\right)\)

Khi mắc song song

Điện trở tương đương:

\(R_{s s} = \frac{U^{2}}{P_{2}} = \frac{12^{2}}{18} = \frac{144}{18} = 8 \Omega\)

Mà:

\(R_{s s} = \frac{R_{1} R_{2}}{R_{1} + R_{2}}\)

Nên:

\(\frac{R_{1} R_{2}}{36} = 8\) \(R_{1} R_{2} = 288 \left(\right. 2 \left.\right)\)

Từ (1) và (2):

\(R_{1} + R_{2} = 36\) \(R_{1} R_{2} = 288\)

Giải:

\(x \left(\right. 36 - x \left.\right) = 288\) \(x^{2} - 36 x + 288 = 0\) \(\Delta = 36^{2} - 4 \cdot 288 = 144\) \(x = \frac{36 \pm 12}{2}\)

\(x = 24 \text{ho}ặ\text{c} 12\)

Vậy:

\(R_{1} = 24 \Omega , R_{2} = 12 \Omega\)

b) Tính điện năng tiêu thụ trong 1 giờ khi mắc song song

\(A = P . t\)

Với:

\(P = 18 W , t = 1 h = 3600 s\) \(A = 18 \times 3600 = 64800 J\)

Gọi vận tốc xe đi từ \(B\)\(x\) (km/h).

Vận tốc xe đi từ \(A\):

\(x+10(\text{km}/\text{h})\)

Sau 2 giờ hai xe gặp nhau nên:

\(2 x + 2 \left(\right. x + 10 \left.\right) = 140\)

Giải:

\(2 x + 2 x + 20 = 140\) \(4 x = 120\) \(x = 30\)

Vậy:

  • Xe đi từ \(B\): \(30\) km/h
  • Xe đi từ \(A\): \(40\) km/h
  • Nhân tố vô sinh (vật lý, hóa học): Bao gồm nhiệt độ, ánh sáng, độ ẩm, nồng độ oxy, và các chất vô cơ khác trong môi trường sống.
  • Nhân tố hữu sinh: Các mối quan hệ giữa các sinh vật sống xung quanh, bao gồm cả tác động lớn từ con người.
  • Môi trường nội bào: Các yếu tố bên trong cơ thể như nồng độ các chất trong dịch ngoại bào cũng ảnh hưởng trực tiếp đến hoạt động của tế bào.

MN ơi mong mọi người cũng tặng giống tui , tui tặng cho bạn 50 xu rồi đó