Category: Physics

Are Step-up transformers safe? Step-up/down transformers have been used for many, many years; there is nothing mysterious about them. In general they are as safe as other parts of the electrical systems . If you are worried, then I suggest you buy one from a reputable/estalished company, and make sure that it is certified (e.g., […]

Does dissolved oxygen increase with temperature? First, the solubility of oxygen decreases as temperature increases ¹. This means that warmer surface water requires less dissolved oxygen to reach 100% air saturation than does deeper, cooler water. Third, dissolved oxygen will increase as pressure increases ¹. What are the important effects of temperature on aquatic organisms? […]

What happens to the resistance of wire if it is stretched? The resistance of a wire is inversely proportional to its area and directly proportional to its length. When the length is tripled then resistance will also become three times. If The wire is stretched 3 times the original length, the cross-section of the wire […]

What are three types of LASERs? Types of lasers – Solid state laser, Gas laser, Liquid laser & Semiconductor laser. What is radiation in laser? Laser radiation is an optical radiation that can either be visible or invisible. If the wavelength of a laser beam is 400-780nm (nanometres), the beam is visible to the human […]

What is the general formula of respiration? C 6 H 12 O 6 + 6 O 2 –> 6 CO 2 + 6 H 2 O + ATP is the complete balanced chemical formula for cellular respiration. What is Golgi apparatus short answer? The Golgi apparatus, also called Golgi complex or Golgi body, is a […]

How many primary colors are there? three What are the 7 primary colors? What are the 7 primary colors? There are seven colors in the rainbow: red, orange, yellow, green, blue, indigo and violet. Why are primary colors so important? The colors red, green, and blue are classically considered the primary colors because they are […]

Does sulfur break easily? Sulfur is a solid, which means you can hold it and touch it, but it is known as a nonmetal, meaning it is not made up of metal. It is recognizable because of its pale yellow color. If you touch it, it is soft and can easily break with your fingers. […]

What precautions should be taken when working with hydrogen peroxide? In the event of exposure to hydrogen peroxide, seek medical attention and follow these first aid guidelines: Inhalation—Seek fresh air. Eye Contact—Remove contact lenses if present. Skin Contact—Flush skin with plenty of water and cover irritated skin with an emollient. Ingestion—Do NOT induce vomiting. Is […]

When you prepare for a right turn should you remain as near the center of the lane as possible? As you prepare to turn, reduce speed and stay as far to the right as possible. Begin the turn in the lane nearest to the right-hand curb and end the turn in the lane nearest the […]

Why do we use displacement? It quantifies both the distance and direction of the net or total motion along a straight line from the initial position to the final position of the point trajectory. A displacement may be identified with the translation that maps the initial position to the final position. What’s the formula for […]