Category: Physics

Is it safe to drink from aluminum cans? Americans continue to drink canned beverages and eat food from cans lined with BPA. BPA is found in the linings of most canned foods and most aluminum cans, including Coca-Cola products. Now, a new study suggests that even small doses of BPA can significantly increase blood pressure […]

Is IDK an answer? Is IDK an Answer? IDK mostly functions as an answer in casual conversations like chats or texts. Since IDK is an abbreviation for the phrase “I don’t know,” you can use IDK wherever you would respond with the full phrase (“Which film did you like best?” “IDK, it’s hard to choose. […]

What is the smallest unit that can be said to be alive? cell What’s the biggest cell in the human body? ovum Do people change every 7 years? Here’s how the story goes: Every seven years (or 10, depending on which story you hear) we become essentially new people, because in that time, every cell […]

Which is faster light or sound quizlet? Light travels faster because it does not need to pass energy from one particle of matter to another. Light waves also have more energy than sound waves. Which statement best describes the Doppler effect? Answer: These statements accurately describe the Doppler Effect: It indicates galaxy motion through light […]

What are the 2 types of reasoning? The two main types of reasoning involved in the discipline of Logic are deductive reasoning and inductive reasoning. Deductive reasoning is an inferential process that supports a conclusion with certainty. What is the purpose of reasoning? All reasoning has a purpose. All reasoning is an attempt to figure […]

What is the difference between an open system & a closed system? An open system can exchange both energy and matter with its surroundings. The stovetop example would be an open system, because heat and water vapor can be lost to the air. A closed system, on the other hand, can exchange only energy with […]

What can I see with 1000X Microscope? While some eucaryotes, such as protozoa, algae and yeast, can be seen at magnifications of 200X-400X, most bacteria can only be seen with 1000X magnification. This requires a 100X oil immersion objective and 10X eyepieces.. Even with a microscope, bacteria cannot be seen easily unless they are stained. […]

When two equal resistance are connected in parallel their effective resistance is? Effective resistance of two equal resistances connected in parallel is 3 ohm. When two resistances of 1 ohm and 3 ohms are connected in parallel their equivalent resistance is less then 1 ohm? Answer Expert Verified so,R=2 ohm. THERE IS ONE MORE METHOD […]

How do you calculate projectile distance? The equation for the distance traveled by a projectile being affected by gravity is sin(2θ)v2/g, where θ is the angle, v is the initial velocity and g is acceleration due to gravity. Assuming that v2/g is constant, the greatest distance will be when sin(2θ) is at its maximum, which […]

Does Gypsum react to hydrochloric acid? Does Gypsum react to hydrochloric acid? Gypsum is very soft (softer than a fingernail and so can be scratched by a fingernail). It’s color is typically clear or white, but can take on color from impurities, such as pink or yellow. It will not effervesce (fizz) in dilute HCl […]