Category: Physics

Why do we use two regression equations? In regression analysis, there are usually two regression lines to show the average relationship between X and Y variables. It means that if there are two variables X and Y, then one line represents regression of Y upon x and the other shows the regression of x upon […]

What is the most important factor for the formation of our planets? Gravity pulled matter into the center core, nuclear fusion began, and our Sun was created. Remaining matter and gas clumped together to form the planets. What evidence is there for the nebular theory? What Evidence do we have of a Nebular Theory-type development? […]

What is a good bat exit velocity? Attaining a high Exit Velocity is one of a hitter’s primary goals. A hard-hit ball won’t always have a positive result, but the defense has less time to react, so the batter’s chances of reaching base are higher. The Average MLB exit velocity is 89 MPH, 91 MPH […]

What is the biggest source of motivation? THE BIGGEST SOURCE OF MOTIVATION ARE YOUR OWN THOUGHTS , SO THINK BIG AND MOTIVATE YOURSELF TO WIN . What are four sources of motivation? Intrinsic and Extrinsic Motivation Drives, needs, incentives, fears, goals, social pressure, self-confidence, interest, curiosity, beliefs, values, expectations are the energisers that direct our […]

What were the major achievements of scholars in southwest Asia? They built huge, pyramid-shaped temple towers, and made advances in mathematics, astronomy, government, and law. Using a writing system called cuneiform (kew-NAY-ih-form), they produced great works of literature, including a poem known as the Epic of Gilgamesh. Why is the Middle East called Southwest Asia? […]

What is the length of the vector (- 3 2? Answer. Answer: √13 is the answer. What is the difference between a unit vector and a vector? Vectors are the physical quantities that have magnitude, answering how much; as well as direction, answering where to. For example: implies displacement of towards . A unit vector […]

What is a deep crack that runs through the center of a mid-ocean ridge? Running along the top of this chain of mountains is a deep crack, called a rift valley. It is here that new ocean floor is continuously created. As the two sides of the mountain move away from each other, magma wells […]

Why does it take 29.5 days for Moon? The Moon takes 29.5 days to return to the same point on the celestial sphere as referenced to the Sun because of the motion of the Earth around the Sun; this is called a synodic month (lunar phases as observed from the Earth are correlated with the […]

What muscle controls the amount of light entering the eye? iris What controls the amount of light entering the eye? Iris: The iris is the colored part of the eye that surrounds the pupil. It regulates the amount of light that enters the eye. Lens: The lens is a clear part of the eye behind […]

Which fruit has the highest potassium? Topic Overview Food (no table salt added) Serving size Potassium (mg) Apricots 2 raw or 5 dry 200 Artichoke 1 medium 345 Banana 1 425 Beans (lima, baked navy) ½ cup 280 Is peanut butter high in potassium? High-potassium foods (more than 200 mg per serving): 3 ounces of […]