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What does GM stand for (a unit of weight or a unit of volume) Dosage: 0.1gm/part
GM, that is, gram, is not only expressed in Indian materials, but also in many reference texts in Taiwan. In addition, the abbreviation mentioned above is mainly applicable to the mainland, and the sources of quoted materials may be widely from various countries. Therefore, how to stick to the standard abbreviation (mainland standard) and understand the requirements of various countries will become very important
What is the weight per unit volume?
Specific gravity. 1 cubic meter of water, weight 1000 kg, specific gravity is 1
The instruments used in the laboratory to measure forces are called______ ．
The instrument for measuring force in the laboratory is a spring dynamometer
What is the main unit of force in the international unit system? What is the instrument often used to measure the force in the laboratory?
The principal unit of force in the international system of units is (Newton),
The instrument often used to measure the force in the laboratory is called spring dynamometer
In the international system of units, the unit of force is Newton, and the spring scale is an instrument for measuring the size of force. It is made by using the principle of (?)?
The extension of the spring is proportional to the tension
The tool for measuring the force is called________ The instruments commonly used to measure the gravity of objects are called_______ That's the basis_____________ It's made of the truth
get up and get
A spring dynamometer; a spring dynamometer; within the elastic limit, the length of the spring extension is proportional to the tension
The teacher told us
Do you know any instruments and instruments for measuring force?
Button scale grip spring scale
That's about it
The unit of force is Newton, abbreviated as "cow". What is the letter?
N
When measuring the weight of a heavy object, it is usually expressed in () or () with letters
In the measurement of the weight of heavy goods, usually (kg) as a unit, usually (kg) also known as (kg), with the letter (kg)
What is the internationally unified unit of force? What is the abbreviation? What is the capital letter
Newton n
RELATED INFORMATIONS
- 1. Because of the earth's_______ The force on an object is called gravity____ All objects near the earth are affected_____ What is the force of gravity______ The object under force is______
- 2. In the laboratory, gravity can be measured with a spring dynamometer. The magnitude of gravity is related to what the object is. What is the specific relationship? What is the expression?
- 3. 500 g of 70% alcohol solution and 300 g of 50% alcohol solution are mixed, and the concentration of alcohol solution is 0______ ．
- 4. How much deionized water does a kilogram of 95% alcohol need to add to make 75% alcohol?
- 5. Mr. Wang has 30 grams of 95% alcohol. How many grams of water should be added to dilute it to 75% alcohol
- 6. In a medical alcohol solution, the mass ratio of pure alcohol to water is 3:4. How many grams of pure alcohol are needed to prepare 420g of this medical alcohol solution?
- 7. The disinfectant alcohol in the hospital is made up of pure alcohol and distilled water in a ratio of 3:1. Now there are 600 grams of pure alcohol. How many grams of distilled water do you need to add?
- 8. How is medical alcohol produced? Is it made of anhydrous ethanol and water?
- 9. How to prepare 75% ethanol solution with 95% ethanol
- 10. Observe the mitosis of plant cells and induce chromosome doubling at low temperature Both experiments used plant cells But why is it unnecessary to add Karnaugh's solution to observe mitosis? What's the difference between these two experiments? What should we pay attention to?
- 11. A rectangular cylinder cone of equal base area and volume, the longest of which is Give reasons
- 12. The circumference of the bottom surface of a cylinder is 62.8 cm and the height is 30 cm. If the cylinder is cut into the largest cuboid, what is the volume of the cuboid
- 13. There is a rectangular container and a cylindrical container. The ratio of their bottom area is 5:3. There is 3744 cubic decimeters of water in the rectangular container, and the water depth is 14.4 decimeters The cylinder is empty. Now pour the same amount of water into the rectangular container and the cylindrical container to make the water depth in the two containers equal. This is the water depth of the rectangular container
- 14. How to calculate the volume of pipeline insulation material
- 15. An iron cylinder with a mass of 5 kg, 20 cm high, and a density of 7.8 × 10 ^ 3 kg / m2 Find (1) how much pressure does the table face when it is placed vertically on a horizontal table top? (2) how much pressure does the table face when it is pressed down with Newton's force?
- 16. How to calculate the weight of water The fish tank is 0.78 meters long, 0.38 meters wide and 0.45 meters high. Who can help me figure out how much water I can hold
- 17. A rectangular steel plate weighs 128.7 kg, 2.2 meters long and 1.5 meters wide. Each cubic decimeter of steel weighs 7.8 kg. How many decimeters thick is this steel plate?
- 18. The volume of water increases by one tenth after ice formation. How many cubic decimeters is the volume of a 143 square decimeter piece of water after ice formation
- 19. Ice water turns into water, and its volume is reduced by 1 / 11. Now there is 5 cubic decimeters of water. When it forms ice, what is its volume? A 5 cubic decimeter of ice How many cubic decimeters is the volume of water
- 20. After water becomes ice, its volume increases by one tenth. Now there is a piece of ice, with a volume of 215 cubic meters. How many cubic decimeters does it take to melt into water