Category: Physics

What are circumference calculating letters? circumference calculating letter RANK ANSWER Circumference-calculating letters P I S Circumference finder’s letter How do you find circumference with area? The formula C = 2√πA is designed to find a circle’s circumference using the area (A). Alternatively, you can solve the equation A = πR2 in reverse to find R, […]

Does a new day start at midnight or 12 01? It’s neither. The new day begins at the beginning of 12:00:00 AM, not the end of 12:00:00 AM. Because most clocks will pause for one second (all clocks pause for a time, depending on how accurate it is will determine for how long) before changing […]

What is the difference between a theory and a hypothesis? Hypothesis: What’s the Difference? A hypothesis proposes a tentative explanation or prediction. A theory, on the other hand, is a substantiated explanation for an occurrence. Theories rely on tested and verified data, and scientists widely accepted theories to be true, though not unimpeachable. What is […]

How did 3 golf balls get on the moon? Two. Alan Shepard is the only person to hit a golf ball on the Moon. During the Apollo 14 mission, he fitted an 8 iron head to the handle of a lunar sample collection device and launched three golf balls. They are still there! Who hits […]

What is the average height for roller coasters? So, we’ve decided to make it simple for you: All of our rides have minimum height requirements that range from 36 in. to 48 in. This difference of a foot can take a few years to get through, but most kids are able to start riding around […]

Why is the sea water tastes salty? Ocean salt primarily comes from rocks on land. Rocks on land are the major source of salts dissolved in seawater. Rainwater that falls on land is slightly acidic, so it erodes rocks. This releases ions that are carried away to streams and rivers that eventually feed into the […]

What does it mean to be 100% ionized? When weak neutral acids and bases are put in water, they form ions. This is the percentage of the compound that has ionized (dissociated). Strong acids (bases) ionize completely so their percent ionization is 100%. What does it mean when a weak acid is ionized? A weak […]

What is the normal oxygen carrying capacity of hemoglobin? 1.34 ml How do you calculate oxygen content? The constant, 1.36, is the amount of oxygen (ml at 1 atmosphere) bound per gram of hemoglobin….Oxygen Content. CaO2 = 1.36 * Hgb * SaO2 + 0.0031 * PaO2 100 What is normal CaO2 content? Normal CaO2 ranges […]

Do you have to have a seatbelt on in the backseat? While the law may not mandate that you wear your seat belt as a backseat passenger, it’s still a good idea to buckle up. In response, many states have enacted laws to encourage backseat passengers in vehicles to buckle up their seat belt just […]

Why do we believe there is dark matter? A sufficiently massive and cold gas cloud can collapse under its own gravity to form stars. By contrast, dark matter cannot lose energy by emitting light. Thus, while conventional matter can collapse into dense objects like stars and planets, dark matter remains more diffuse. Does a parallel […]