Category: Physics

What are the advantages of generalized coordinates? The major advantage of using generalized coordinates is that they can be chosen to be perpendicular to a corresponding constraint force, and therefore that specific constraint force does no work for motion along that generalized coordinate. What is rigid body How many generalized coordinates will have to be […]

Is it bad to be in peak heart rate zone? Going higher than your maximum heart rate for long periods of time could be dangerous for your health. That’s especially true if you’re new to exercise. Do you burn fat in peak heart rate zone? The ‘fat burning zone’ is where you are working out […]

Can eyes affect the brain? They also noted that vision had a stronger influence on brain function than the reverse. This suggests that maintaining good vision health by having regular check-ups and addressing problems like cataracts, glaucoma, and age-related macular degeneration may help keep your brain healthy as you age. Can head trauma cause eye […]

Why some elements are reactive? The number of electrons in the outermost shell of an atom determines its reactivity. Halogens are highly reactive because they readily gain an electron to fill their outermost shell. Alkali metals are highly reactive because they readily lose the single electron in their outermost shell. Is S or O more […]

Is there a measure of sharpness? There is no unit of sharpness but instruments are available to measure it. Those instruments provide accurate results with high precision. What is the sharpest knife in the world? Obsidian knife blades: overkill for slicing your sandwich. The thinnest blades are three nanometres wide at the edge – 10 […]

What are the 2 types of active transport? Active transport requires cellular energy to achieve this movement. There are two types of active transport: primary active transport that uses adenosine triphosphate (ATP), and secondary active transport that uses an electrochemical gradient. Is facilitated diffusion an example of passive transport? Facilitated diffusion is a type of […]

How do you know if starter motor is bad? What are common bad starter symptoms? Something sounds off. One of the symptoms of a bad starter is a clicking noise when you turn the key or push the start button. You’ve got lights but no action. Your engine won’t crank. Smoke is coming from your […]

What will happen in 600 million years? Total solar eclipses occur because the moon and the sun have the same apparent size in Earth’s sky — the sun is about 400 times wider than the moon, but the moon is about 400 times closer. … Can the entire earth see each solar eclipse? Image courtesy […]

What is the danger of replacing a circuit breaker or fuse with a larger rating? Since all fit the same socket, there is always the danger of replacing one fuse with a higher amperage than is safe. The higher-rated fuse will allow more current to flow than the wires can safely handle, causing overheating and […]

What is the most energy efficient plant? sugar cane Why do plants not absorb all light? Plants and other photosynthetic organisms are largely filled with pigment protein complexes that they produce to absorb sunlight. The pigment in the lowest layer has to receive enough light to recoup its energy costs, which cannot happen if a […]