What is a 1% slope? 1% as a decimal is 0.01 and hence the slope is 0.01. That means for a run of pipe of a certain length the rise must be 0.01 times the length. Thus for you example, since the length of the run is 80 feet which is 80 × 12 = […]
Why did Rome split into two empires?
Why did Rome split into two empires? Explanation: The Roman Empire had become too large to be ruled by one emperor by the third century (this was one of the causes of the Crisis of the Third Century). It was divided, by Emperor Diocletian, into a tetrarchy. This tetrarchy was then dissolved in favor of […]
What is meant by rapid combustion give two examples?
What is meant by rapid combustion give two examples? Examples of Rapid combustion – – Lighting a candle – When heat is provided to a candle it burns and continues till the wax burns completely. – Burning of kerosene oil in a kerosene stove; it gives heat and light. – Immediate burning of cooking gas, […]
How does total mass affect inertia?
How does total mass affect inertia? Objects have a natural tendency to resist change. This is INERTIA. Heavier objects (objects with more mass) are more difficult to move and stop. Heavier objects (greater mass) resist change more than lighter objects. Why do heavy people go down slides faster? The mass component of friction cancels out […]
What is a secondary storage device that uses laser technology?
What is a secondary storage device that uses laser technology? This form of secondary storage uses laser technology to store data and programs. Examples are CDs, DVDs, and Blu-Ray discs. How does a disc store data? Data is stored on the disc as a series of microscopic indentations. A laser is shone onto the reflective […]
What is the strongest tornado?
What is the strongest tornado? The most “extreme” tornado in recorded history was the Tri-State Tornado, which spread through parts of Missouri, Illinois, and Indiana on March 18, 1925. It is considered an F5 on the Fujita Scale, even though tornadoes were not ranked on any scale at the time. How does a tornado destroy […]
What do electronegativity values indicate?
What do electronegativity values indicate? Electronegativity is the tendency of a bonded atom to attract shared electrons to itself. The greater the electronegativity, the greater the attraction. Differences in electronegativities between atoms can indicate the type of bond. Which is the best definition of electronegativity? Electronegativity is a measure of the tendency of an atom […]
How do you determine the number of electrons in silver?
How do you determine the number of electrons in silver? Silver has 47 electrins per atom, and its molar mass is 107.87gmol-1. Number of electrons is 47n=2.62×1024. What is the electron density of silver? 10.5 g/cm3 How do you determine electron density? Counting Regions of High Electron Density. Draw the Lewis structure for the molecule […]
What are the disadvantages of using a presentation?
What are the disadvantages of using a presentation? Distraction From Overwhelming Presentations Text-heavy slides leave your audience reading rather than listening to your message. On the other hand, presenters may use too many effects and transactions and end up distracting rather than engaging the audience. Why is PowerPoint bad? Bad text placement, distracting font, or […]
What type of relationship exists between hookworms and humans?
What type of relationship exists between hookworms and humans? Parasitism What are the signs of hookworms in humans? Itching and a localized rash are often the first signs of infection. These symptoms occur when the larvae penetrate the skin. A person with a light infection may have no symptoms. A person with a heavy infection […]