Why does borax make bouncy balls? The borax acts as a “cross-linker” to the polymer molecules in the glue – basically it creates chains of molecules that stay together when you pick them up. The cornstarch helps to bind the molecules together so that they hold their shape better. How do you make a super […]
Is slide into first illegal?
Is slide into first illegal? Yes, in Major League Baseball, hitters are allowed to slide into first base. Is it faster to slide head first? “Head-first should be faster, but if you’re more aggressive going in feet-first, it will be as fast,” said Hugh O. House, an orthopedic surgeon at the University of Maryland Baltimore […]
What is locomotion give example?
What is locomotion give example? Locomotion in biology pertains to the various movements of organisms (single-celled or multicellular organisms) to propel themselves from one place to another. In multicellular animals, these movements include walking, running, jumping, crawling, climbing, swimming, flying, galloping, slithering, and so on. What is locomotion example? The movement of an organism from […]
Is there another way of writing a very big or small numbers?
Is there another way of writing a very big or small numbers? Scientific notation is a way of writing very large or very small numbers. A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10. For example, 650,000,000 can be written in scientific notation […]
Which subatomic particle has a positive charge and negative charge?
Which subatomic particle has a positive charge and negative charge? The nucleus contains two types of subatomic particles, protons and neutrons. The protons have a positive electrical charge and the neutrons have no electrical charge. A third type of subatomic particle, electrons, move around the nucleus. The electrons have a negative electrical charge. How does […]
What are the disadvantages of living on a floodplain?
What are the disadvantages of living on a floodplain? Disadvantages No buildings or roads will be built in a floodplain area, so it restricts development. High risk of flooding. Why is it bad to build on a floodplain? Building on the floodplains makes the habitats for many creatures rare and unnatural as their natural habitat […]
Which has more thermal energy?
Which has more thermal energy? If two objects made of the same substance have different masses or temperatures, you can determine which has more thermal energy. If the objects have different masses but are otherwise the same, the one with more mass has more thermal energy. What is thermal power in short? Thermal power describes […]
Is it dangerous to connect two extension cords?
Is it dangerous to connect two extension cords? If you plug two identical cords into each other, that reduces their current capacity in half and can possibly result in voltage drop and overheating. In general, extension cords should not exceed 100 feet in length. However, by plugging one extension cord into another, the maximum cord […]
What is protraction and retraction of shoulder?
What is protraction and retraction of shoulder? Protraction of the scapula occurs when the shoulder is moved forward, as when pushing against something or throwing a ball. Retraction is the opposite motion, with the scapula being pulled posteriorly and medially, toward the vertebral column. What causes protracted scapula? Scapular dyskinesis in impingement is characterized by […]
Why do we need to study dynamics?
Why do we need to study dynamics? As a field of study it is very important for analyzing systems consisting of single bodies or multiple bodies interacting with each other. A dynamics analysis is what allows one to predict the motion of an object or objects, under the influence of different forces, such as gravity […]