What is the shortest wavelength of UVC light? 100 nm What UV wavelengths are dangerous? UV-B light (290-320nm) causes sunburns with prolonged exposure along with increasing the risk of skin cancer and other cellular damage. About 95% of all UV-B light is absorbed by the ozone in Earth’s atmosphere. UV-C light (100-290nm) is extremely harmful […]
What is an example of maintenance time?
What is an example of maintenance time? Time-Based Maintenance Examples Tuning up a furnace every year before winter. Clearing debris out of a gutter every 6 months. Visually inspecting fire extinguishers each month. Changing an air filter every quarter. What is risk maintenance? Risk-based maintenance (RBM) prioritizes maintenance resources toward assets that carry the most […]
What is the difference between static and dynamic exercises?
What is the difference between static and dynamic exercises? Dynamic exercises involve weights and must be done in specific ways to avoid injury. Static exercises don’t need weights and can be done by any person, as they involve very little movement. What is static and dynamic code? Static code analysis is done without executing any […]
What force is used in swimming?
What force is used in swimming? The Forces in Swimming The forces are drag, lift, gravity and buoyancy. Lift and drag are the main propulsive forces that are used by swimmers. Resistance, known as drag, can be broken into three main categories: frontal resistance, skin friction, and eddy resistance. How can I enjoy swimming alone? […]
What new landforms are created by erosion and deposition?
What new landforms are created by erosion and deposition? Some landforms created by erosion are platforms, arches, and sea stacks. Transported sand will eventually be deposited on beaches, spits, or barrier islands. People love the shore, so they develop these regions and then must build groins, breakwaters, and seawalls to protect them. What are two […]
What sector uses the most water at nearly 70 %?
What sector uses the most water at nearly 70 %? In most regions of the world, over 70 percent of freshwater is used for agriculture. By 2050, feeding a planet of 9 billion people will require an estimated 50 percent increase in agricultural production and a 15 percent increase in water withdrawals. How much water […]
What prevents the entry of food into the trachea?
What prevents the entry of food into the trachea? epiglottis What prevents the trachea from collapsing? The hyaline cartilage in the tracheal wall provides support and keeps the trachea from collapsing. The posterior soft tissue allows for expansion of the esophagus, which is immediately posterior to the trachea. Can a collapsed trachea heal itself? Tracheal […]
What is 1m3 the same as?
How much energy and power will it take to run a 900 watt air conditioner for 10 hours straight?
What is the fastest way to ignore errors in Excel?
What is the fastest way to ignore errors in Excel? The keyboard shortcut to Ignore Errors is Alt+Menu Key+I. That is a quick way to remove the in-cell error warnings (small green triangles at top-left corner) in the selected range of cells. How do I replace #value with 0 in Excel? You can use the […]