Category: Physics

How do you calculate the mass of a mole? First, you can calculate the molar mass of FeCl2 by adding the molar masses of Fe (55.845 g/mol) and 2 atoms of Cl (2 times (35.446 g/mol). This gives a molar mass of 126.737 g/mol. Since each mole is 126.737 grams, you multiply 3.5 mols by […]

What is the advantage and disadvantage of sexual reproduction? The process of sexual reproduction introduces variation into the species because the alleles that the mother and the father carry are mixed together in the offspring. A disadvantage is that sexual reproduction takes longer than asexual reproduction. What are the two advantages of reproduction? Advantages of […]

What does it mean when a boat honks 3 times? SHE: Why do they honk three times when they come into port? HE: They are signalling that they are coming home. There’s an old legend of Arturo, a Portuguese fisherman who met a beautiful girl when he came into port. What does a single white […]

Why is pressure not dependent on mass? Static Fluid Pressure The fluid pressure at a given depth does not depend upon the total mass or total volume of the liquid. Because of the ease of visualizing a column height of a known liquid, it has become common practice to state all kinds of pressures in […]

Why is potential energy U? U is the letter most similar to V – there are lots of times when, if V is used as a variable for a concept, then U is a variable for a similar concept. So potential energy became U, because someone might have been trying to make a connection with […]

What is the warmest layer of the atmosphere? The thermosphere is often considered the “hot layer” because it contains the warmest temperatures in the atmosphere. What flew in the thermosphere before it was grounded? E. The thermosphere contains a layer of charged particles called the ionospherewhich makes communication by radio wavespossible and is home to […]

What is the maximum distance for single mode fiber? 40 km How far can single mode fiber run? The single mode optical fiber is the best choice for transmitting data over long distances such as 100 km (60 miles) for its low signal attenuation caused by the single light mode. What is the max speed […]

What is difference between specificity and individuality? The principle of specificity means you must do specific exercises to improve specific components of physical fitness in specific body parts. The principle of individuality means that your training program must meet your goals and objectives. Everyone starts at a different place. What is an example of individuality? […]

Can alliteration be 2 words? Alliteration doesn’t need to be in an entire sentence to be effective. Any two-word phrase can be alliterative. What are 5 example of alliteration? Alliteration Tongue Twisters Peter Piper picked a peck of pickled peppers. If Peter Piper picked a peck of pickled peppers, where’s the peck of pickled peppers […]

What recommendations do the Dietary Guidelines for Americans 2015 2020 make in regards to sugar consumption? The 2015-2020 Dietary Guidelines for Americans recommends limiting calories from added sugars to no more than 10% each day. That’s 200 calories, or about 12 teaspoons, for a 2,000 calorie diet. What is new in the 2020-2025 Dietary Guidelines? […]