Are LED filament bulbs good? An LED filament light bulb is an LED lamp which is designed to resemble a traditional incandescent light bulb with visible filaments for aesthetic and light distribution purposes, but with the high efficiency of light-emitting diodes (LEDs). They are also more efficient than many other LED lamps. Which metal wire […]
How much force does it take to bend tungsten?
How much force does it take to bend tungsten? How much force can tungsten withstand? It has a Young’s modulus of approximately 530–700 GPa, a bulk modulus of 630–655 GPa, and a shear modulus of 274 GPa. It has an ultimate tensile strength of 344 MPa, an ultimate compression strength of about 2.7 GPa and […]
What is the end of food chain?
What are the two major categories of location?
What are the two major categories of location? Geographers can describe the location of a place in one of two ways: absolute and relative. Both are descriptives of where a geographic location is. Let’s learn about the difference between absolute and relative location. How is location determined? A place’s absolute location is its exact place […]
What is the cooling constant k?
How does a river show erosion and deposition?
How does a river show erosion and deposition? Water flowing over Earth’s surface or underground causes erosion and deposition. Water flowing over a steeper slope moves faster and causes more erosion. Erosion and deposition by slow-flowing rivers create broad floodplains and meanders. Deposition by streams and rivers may form alluvial fans and deltas. What comes […]
Who accepts user stories in agile?
Who accepts user stories in agile? Anyone can write user stories. It’s the product owner’s responsibility to make sure a product backlog of agile user stories exists, but that doesn’t mean that the product owner is the one who writes them. Over the course of a good agile project, you should expect to have user […]
What can happen if total peripheral resistance increases?
What can happen if total peripheral resistance increases? This can occur when someone is very stressed or has a lot of tightened muscles due to exercise stress, as can be seen in the adjacent picture. In summary, any increases in cardiac output (HR and/or SV), blood viscosity or total peripheral resistance will result in increases […]
How does the magnetic force change if the distance between two objects is increased?
How does the magnetic force change if the distance between two objects is increased? Magnetic force obeys an inverse square law with distance. If the distance between two magnets is doubled the magnetic force between them will fall to a quarter of the initial value. (F/4) If the distance between two magnets is halved the […]
Why are spectral lines not perfectly sharp?
Why are spectral lines not perfectly sharp? Real spectral lines are broadened because: – Energy levels are not infinitely sharp. – Atoms are moving relative to observer. energy E of levels with finite lifetimes. Determines the natural width of a line (generally very small). What causes absorption lines? Absorption lines occur when an atom, element […]