How to use common learning stationery to measure the diameter of thin copper wire? (write the use of stationery, measurement method and the expression of the diameter of thin copper wire) Same as above, physical content
The copper wire is wound on the pen for 10 turns, and then measured by a ruler for 10 turns, and then divided by 10
RELATED INFORMATIONS
- 1. It is now required to estimate the total length of a coil of bare wire (3 types) without pulling apart the coil of copper wire but cutting off a section of copper wire
- 2. How to measure the full length of a coil of thin copper wire with a balance and ruler
- 3. What is x squared times y squared
- 4. How much is the quadratic power of X multiplied by the quadratic power of Y Thank you Is it equal to the fourth power of XY
- 5. How can X-1 be equal to X-1
- 6. What's the square of 11, what's the square of 12, what's the square of 25
- 7. How many square meters is 600 meters long and 240 meters wide? How much is 25 yuan per square meter?
- 8. The length of the foundation is 2A & nbsp; m and the width is (2a-24) m. A is used to represent the area of the foundation, and the area of the foundation is calculated when a = 25
- 9. If the length of a rectangle remains unchanged and its width increases by 4 meters, it will become a square and its area increases by 36 square meters. What is the area of the original rectangle?
- 10. The width of a rectangular garden is increased by four meters. The area is increased by 48 square meters. The increased rectangle becomes a square. Find the original garden area
- 11. A student wants to measure the diameter of a straight thin copper wire. His experimental steps are as follows: A. Measure the length L1 of the thin copper wire with a scale; B. The thin copper wires are tightly arranged and wound on the pencil rod for several circles; C. Measure the total length L2 of the copper wire coil on the round pencil rod with a scale (as shown in the figure); D. Count the number of turns n of the thin copper wires on the pencil rod E. Divide the length of copper wire L1 by the number of turns of copper wire n to get the diameter of thin copper wire D; (1) In the above steps, the wrong and unnecessary steps are (fill in letters) (2) The error step is corrected to: ■ (3) This method can also be used as an example
- 12. How to measure the diameter of a thin copper wire with length L The tool is a round pencil rod
- 13. What is the shortest unit of time
- 14. What is the unit of time___ ?
- 15. The ratio of surface area, volume and volume Answer tonight, OK, plus 10 wealth
- 16. Today, Qin's general weighs about 1.8 Jin per kilo Height (m) and weight (Jin)
- 17. Monetary measurement is the only unit of accounting measurement It's a judgment question, thank you
- 18. How to say the unit of measurement in English? How to express the unit of measurement in English? Is it unit? For example, "unit: kilometer" is "XX: km"? Please give me some advice,
- 19. American unit of measurement Ask for a table of that kind, or help me to list the U.S. units of measurement, such as inch, feet, etc
- 20. In ancient times, who used different lengths of each part of their body as a unit of measurement