Category: Physics

How does the blood circulate in the body? Blood comes into the right atrium from the body, moves into the right ventricle and is pushed into the pulmonary arteries in the lungs. After picking up oxygen, the blood travels back to the heart through the pulmonary veins into the left atrium, to the left ventricle […]

How do you find the largest radius? Atomic radii vary in a predictable way across the periodic table. As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and francium is […]

Are delta or theta waves better for sleep? Delta. All the way at the bottom of the spectrum of brain waves — below theta waves — are the low, deep, slow delta waves. Both delta waves and theta waves occur when you’re asleep, but delta waves are the waves that dominate when you’re in a […]

What is adaptation example? Adaptation is the evolutionary process where an organism becomes better suited to its habitat. An example is the adaptation of horses’ teeth to grinding grass. Grass is their usual food; it wears the teeth down, but horses’ teeth continue to grow during life. Is sweating a human adaptation? The only mechanism […]

What is the circumference of a right circular cylinder? The circumference of the base of a right circular cylinder is 66 cm. What is the formula of CSA of right circular cylinder? Curved surface area of the right circular cylinder = S. Therefore, V = πr2h and S = 2πrh. How do you find the […]

What is the most important element in the universe? Hydrogen is the most abundant element in the Universe; helium is second….Solar system. Nuclide Hydrogen-1 A 1 Mass fraction in parts per million 705,700 Atom fraction in parts per million 909,964 What’s the most useless element? Occurrence. Protactinium is one of the rarest and most expensive […]

Who proposed pulsating theory? Arthur Eddington What is the meaning of pulsating theory? : a theory that explains the peculiar features of such stars as the Cepheid variables by assuming an expansion and contraction of the star as a whole in a regular periodic pulsation. Why is the Big Bang The most accepted theory? The […]

How long can we go without water? As a general rule of thumb, a person can survive without water for about 3 days. However, some factors, such as how much water an individual body needs, and how it uses water, can affect this. Factors that may change how much water a person needs include: age. […]

What is the 3 second rule in lacrosse? As you might imagine, the three-second rule gives offensive players three seconds to do one of two things: pass the ball or change her cradle, which is the manner in which she’s holding the ball. If the offensive player isn’t able to adhere to this rule, the […]

Is inflation always bad for the economy? Many economists, however, maintain that moderate inflation levels are good for the economy. Moderate inflation is needed to drive consumer spending, which is critical for economic growth. Therefore, rising prices can be considered a good thing. But prices that rise too much or prices that fall are bad. […]