Category: Physics

Can a 7 year old start her period? Now the average age for a first period is closer to 12, with one University of Cincinnati study reporting that about 10 to 15 percent of girls enter puberty at age 7 or younger, a phenomenon known as precocious puberty. This is up from just 5 percent […]

How does the Industrial Revolution affect the evolution of the peppered moth? After the pollution from the Industrial Revolution started affecting trees, most of the collected peppered moths were of the dark form. Click for more detail. As the trees darkened with soot, the light-colored moths were easier to see. They lived longer and passed […]

Can you make things levitate? If you are using a card, crumpled piece of paper, or a dollar you can transfer the string from your finger to the object as you explain that you can make the object levitate. Hold the object in place with your free hand as you pull away with the hand […]

Is 1 liter the same as 500ml? One Liter is more than 500 mL since one Liter is equal to 1000 mL. What is 500ml away from 1l? Convert 500 Milliliters to Liters 500 Milliliters (ml) 0.500000 Liters (L) 1 ml = 0.001000 L 1 L = 1,000 ml What is 250ml in cups? Metric […]

Will 30 minutes of cardio a day burn fat? Researchers found moderately overweight men who exercised hard enough to sweat for 30 minutes a day lost an average of 8 pounds over three months compared to an average weight loss of 6 pounds among men who worked out for 60 minutes a day. The overall […]

What are the forces that act between nucleons? Nuclear forces (also known as nuclear interactions or strong forces) are the forces that act between two or more nucleons. They bind protons and neutrons (“nucleons”) into atomic nuclei. The nuclear force is about 10 millions times stronger than the chemical binding that holds atoms together in […]

How do you give good reasoning? Each time you make a choice, there are consequences. A good way to improve reasoning skills is to make a point of stopping to consider those consequences on a conscious level. Use your imagination. Before making a choice in a given situation, pause to imagine a variety of possible […]

Why is there 108 stitches on a baseball? In total, 108 hand-stitched double stitches are used to cover the baseball. At the MLB level, these red stitches and the rest of what is used in a baseball are stored in temperature controlled facilities and wound under tension so no “soft spots” exist in the ball, […]

What are the most stressful events in life? 10 Most Stressful Life Events Death of a loved one. The death of a spouse or other loved one tops the list of the most stressful things we experience. Separation or divorce. Separation and divorce are another two of life’s most stressful events. Getting married. Starting a […]

How Helmholtz double layer is formed? Electrochemical Machining When a metal electrode is placed in an electrolyte solution, an equilibrium difference usually becomes established between the metal and solution. The positive charges of cations in the solution and the negative charges of electrons in the metal electrode form the electrical double layer [4]. What are […]