Why does temperature increase when CO2 increases? When there’s more CO2 in the atmosphere, it makes the atmosphere warmer by trapping heat. Since humans are adding more CO2 to the atmosphere, that helps explain why temperatures are increasing around the world. What happens to temperature when carbon dioxide increases? Scientists say that doubling pre-industrial carbon […]
What brand of light bulbs last the longest?
What brand of light bulbs last the longest? LED Bulbs. LEDs usually have the longest lifespan, often lasting over a decade. Mostly, they are several times better than incandescent bulbs and most fluorescent bulbs. What does A15 mean on a light bulb? Another common A-series light bulb type is the A15 bulb which is commonly […]
How does a four bar linkage work?
How does a four bar linkage work? A four-bar linkage, also called a four-bar, is the simplest movable closed-chain linkage. It consists of four bodies, called bars or links, connected in a loop by four joints. Generally, the joints are configured so the links move in parallel planes, and the assembly is called a planar […]
When should I write my personal statement?
When should I write my personal statement? As a general guide we would say start writing it when you come back to school or college after the summer, though it might be worth jotting down a few ideas during the holidays. We know some people are extremely organised and get at least their first draft […]
What is WEP vs WPA?
What kind of microscope would be used to study a while or opaque object?
What kind of microscope would be used to study a while or opaque object? The stereo microscope, also called a dissecting microscope, provides magnification of up to 300 times. These binocular microscopes are used to look at opaque objects or objects that are too large to be viewed with a compound microscope, since they do […]
What does a pitot static tube measure?
What does a pitot static tube measure? Basically, a pitot tube is used in wind tunnel experiments and on airplanes to measure flow speed. It’s a slender tube that has two holes on it. The side hole measures the static pressure. By measuring the difference between these pressures, you get the dynamic pressure, which can […]
What is heat rate in powerplant?
What is heat rate in powerplant? Heat rate is one measure of the efficiency of electrical generators/power plants that convert a fuel into heat and into electricity. The heat rate is the amount of energy used by an electrical generator/power plant to generate one kilowatthour (kWh) of electricity. If the heat rate is 7,500 Btu, […]
How do you calculate the pitch diameter of a spur gear?
How do you find the angular acceleration of a rod?
How do you find the angular acceleration of a rod? 3 Answers Sum of the forces on body equals mass times acceleration at the center of gravity. ∑i→Fi=m→aC. Ax=maxAy−mg=may. Sum of torques about center of gravity equals moment of inertia times angular acceleration. ∑i(→Mi+(→ri−→rC)×→Fi)=IC→α Acceleration of point A must be zero. →aA=→aC+→α×(→rA−→rC)+→ω×(→vA−→vC) How do you […]