What is the principle of electric iron?

What is the principle of electric iron? An electric iron is based on the principle of heating effect of current that heat is produced in the nichrome wire used in the iron due to the current flowing through it. Which coating is best for iron? Which soleplate is best for ironing? Stainless steel soleplates have […]

What is buffer solution give example?

What is buffer solution give example? Buffer solutions resist a change in pH when small amounts of a strong acid or a strong base are added (Figure 1). A solution of acetic acid and sodium acetate (CH3COOH + CH3COONa) is an example of a buffer that consists of a weak acid and its salt. What […]

Why is the crater important?

Why is the crater important? The Planetary Deep Past Impact craters allow scientists to study a planet’s geological history—even when the records are buried beneath the surface. Rocks ejected by impacts contain minerals that formed in the presence of liquid water; some craters also show signs of ancient lakes. What is the biggest crater on […]

What does a circle around a weather station mean?

What does a circle around a weather station mean? A small circle is plotted on the map at the location where the weather measurements were made. The circle can be filled in to indicate the amount of cloud cover. Positions are reserved above and below the center circle for special symbols that represent different types […]

What is easier rolling or sliding?

What is easier rolling or sliding? When an object rolls over the surface of another object ,the resistance to its motion is called rolling friction. It is always easier to roll than to slide an object over another object.So rolling friction is much less than the sliding friction. Why is sliding faster than rolling? 25ex2 […]

Which is stronger TNT or C4?

Which is stronger TNT or C4? C4 is 18% more powerful than TNT. Ammonium nitrate in its pure form is a fairly weak explosive. When combined with fuel oil, however, it gains an explosive power nearly equal to TNT. How much Tannerite can you legally set off? For safety reasons, Tannerite Sports recommends using no […]

What makes a boiling egg float?

What makes a boiling egg float? Eggs have an air cell that becomes larger as the egg ages and acts as a buoyancy aid. An egg can float in water when its air cell has enlarged sufficiently to keep it buoyant. A spoiled egg will have an unpleasant odor when you break open the shell, […]

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