What is the physical and chemical properties of matter? A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance. Physical properties include color, density, hardness, and melting and boiling points. A chemical property describes the ability of a substance to undergo a specific […]
What is meant by anodising?
What is meant by anodising? Anodising is an electrolytic process for producing thick oxide coatings, usually on aluminium and its alloys. The oxide layer is typically 5 to 30µm in thickness and is used to give improved surface resistance to wear and corrosion, or as a decorative layer. What is anodising give its application? Anodising […]
What is the most environmentally friendly driveway?
What is the most environmentally friendly driveway? Gravel. Pros: Gravel is a great option for the budget-conscious, especially people with longer driveways, Bean says. Another selling point: “Gravel compacts much better than plain rocks,” creating a more stable surface that sheds water easily, Bean says. Are concrete pavers bad for the environment? Concrete and asphalt […]
What passes through the filtration membrane?
What passes through the filtration membrane? The resulting filtrate is a dilute solution that includes water, electrolytes, wastes, nutrients, and other molecules able to pass through the filtration membrane. The regulation of the rate of filtration is important. What three hormones factors do the kidneys secrete into the blood? The kidney secretes (1) renin, a […]
What gives the measure of inertia?
What gives the measure of inertia? There are two numerical measures of the inertia of a body: its mass, which governs its resistance to the action of a force, and its moment of inertia about a specified axis, which measures its resistance to the action of a torque about the same axis. See Newton’s laws […]
How do skaters not get dizzy?
How do skaters not get dizzy? When our head rotation triggers this automatic, repetitive eye movement, called nystagmus, we get dizzy. Skaters suppress the dizziness by learning how to counteract nystagmus with another type of eye movement, called optokinetic nystagmus. Why is backflip banned in skating? Even though the move that caused the leak was […]
Is magnetising current affected by load?
Is magnetising current affected by load? Magnetising current flows into the primary irrespective of transformer load condition. Why magnetizing current is important? A certain amount of current is drawn by a transformer from the source connected to it primary even when no load is connected to its secondary. A part of this current is used […]