How do birds stay in the air? Flapping: When birds flap, the stroke of their downbeat moves the wing tips forward and downward. And as they move forward, the rush of air on their airfoil wings causes more lift. But because flapping birds have smaller wings than soaring birds, they must move forward faster to […]
What are 2 types of organelles?
What are 2 types of organelles? 6 Cell Organelles Nucleus. nucleus; animal cell. Ribosomes. Ribosomes are the protein factories of the cell. Endoplasmic reticulum. Ribosomes on the outer surface of the endoplasmic reticulum play an important role in protein synthesis within cells. Golgi apparatus. Golgi apparatus. Chloroplasts. chloroplast structure. Mitochondria. Why do some organelles have […]
What are the 4 types of minerals?
What are the 4 types of minerals? Types of minerals Native elements. eg. Gold, Silver, Mercury, graphite, diamond. Oxides. eg corundum (incl. sapphire), hematite, spinel. Hydroxides. eg. Goethite, brucite. Sulfides. eg. Pyrite, galena, sphalerite. Sulfates. eg. Baryte, gypsum. Carbonates. eg. Calcite, magnesite, dolomite. Phosphates. eg. Apatite, monazite. Halides. eg. What are the 2 main types […]
How long do lead aprons last?
How long do lead aprons last? 10 years How often should lead aprons be checked? Lead aprons should be checked fluoroscopically at least on an annual basis for their shielding integrity. Rejecting an apron depends on the location, area size and number of flaws. It is best to keep the number of flaws to a […]
What is the difference between a clutch and a torque converter?
What is the difference between a clutch and a torque converter? The way a torque converter operates compared to a clutch is very different. The main difference is that torque converters idle before they engage and they start to engage at around 1,700 RPM. While clutches engage earlier, they have a slip range at about […]
What is energy of activation for the enzymes?
What is energy of activation for the enzymes? Lesson Summary The activation energy is the energy required to start a reaction. Enzymes are proteins that bind to a molecule, or substrate, to modify it and lower the energy required to make it react. Why is it important that enzymes lower the activation energy? Enzymes are […]
Are water slides dangerous?
Are water slides dangerous? Water slides are the number one cause of injuries at water parks. So, follow ride directions. Rules like “feet first” are there for a reason―to keep riders safe. Can you fall out of a water slide? It’s the water running down the slide, creating an almost frictionless surface, that makes this […]
How do you calculate the area of a Venturi meter?
Which graph is used to show change in a given variable?
Which graph is used to show change in a given variable? line graph What are variables in a chart? Variables control charts are used to evaluate variation in a process where the measurement is a variable–i.e. the variable can be measured on a continuous scale (e.g. height, weight, length, concentration). Which graph would be best […]
Is soda is a mixture?
Is soda is a mixture? Soda is considered a heterogeneous mixture. It contains water, sugar, and carbon dioxide, which forms bubbles. While the sugar, water, and flavorings may form a chemical solution, the carbon dioxide bubbles are not uniformly distributed throughout the liquid. Is Salt a mixture? Ordinary table salt is called sodium chloride. It […]