Ikkita bir xil o'q devorga kelib uriladi. Birinchi o'q 0,6°C ga, ikkinchisi esa 2,4°C ga qiziydi. Agar o'qlarning barcha energiyasi ularning qizishiga sarflansa, ikkinchi o'qning tezligi birinchisinikidan necha marta katta?

  1. 2
  2. 2,5
  3. 3
  4. 3,5

📝 Detailed explanation

mv²/2 = cmΔt → v = √(2cΔt).
v₂/v₁ = √(Δt₂/Δt₁) = √(2,4/0,6) = √4 = 2.
11 / 36 (31%)
Question 11 of 36
← Previous → Next Space — Show answer

🎯 Take a test on the topic «7-sinf Tabiiy fanlar 2025 AL-XORAZMIY NOMIDAGI OLIMPIADANING TUMAN BOSQICHI»

This topic contains 36 questions. Test your knowledge!

🔐 Log in to take the test

📚 All tests by subject «Tabiiy fanlar (Science)»

View all collections and topics in Tabiiy fanlar (Science)

Go to subject →

Report an error

Answers are unavailable

This test collection is closed. To get full access, please purchase 🌟 premium

Contact by email