What is the maximum size grounding electrode conductor required to be run to a ground rod when it is the sole connection to the rod? 6 AWG How far should ground rod be from house? 2 feet What size of ground wire do I need for a 200 amp service? Per Article 250 of the […]
What are simple machines Grade 8?
What are simple machines Grade 8? There are six simple machines: the inclined plane, the wedge, the screw, the lever, the wheel and axle, and the pulley (Figure 2). These simple machines can be categorized into two groups—those related to the inclined plane (the wedge and the screw) and those related to the lever (the […]
What are the layers of the Sun starting from the center and moving outward?
What are the layers of the Sun starting from the center and moving outward? There are three main parts to the Sun’s interior: the core, the radiative zone, and the convective zone. The core is at the center. It the hottest region, where the nuclear fusion reactions that power the Sun occur. Moving outward, next […]
How does 1 gallon of gas become 20 lb of CO2?
Why do we zero the spectrophotometer?
Why do we zero the spectrophotometer? Why does a spectrophotometer need to be zeroed? Spectrophotometers and colorimeters are zeroed or “blanked” to reset the absorbance baseline to any background color in the sample that may absorb at the wavelength in question causing an interference. Why does the cuvettes have two frosted sides? Some plastic cuvettes […]
Which type of heat transfer is happening when the warm air rises from the land and the cool air from the ocean blows in?
Which type of heat transfer is happening when the warm air rises from the land and the cool air from the ocean blows in? What is conduction, convection, and radiation? Term Definition Hot sand at the beach burning your feet as you run to the water. Conduction The sun’s rays warming your body at the […]
Does more current make a light bulb brighter?
Does more current make a light bulb brighter? An increase in either voltage or current will increase the brightness of a bulb. In incandescent bulbs, this is the case. When the brightness increases, this also means that the filament’s temperature inside an incandescent bulb also increases. However, the bulb will only get as bright as […]
Can I text Google a question?
Can I text Google a question? Google can be accessed by SMS. Here’s how it works: send a text to 466453 (GOOGLE spelled out on your keypad). For example, if you want current weather conditions in Phoenix, send weather phoenix. Google’s text service can’t answer that question. What are some questions to ask? 100 Getting […]
What is the smallest indivisible particle?
What is the smallest indivisible particle? An atom is the smallest particle of an element, having the same chemical properties as the bulk element. The first accurate theory explaining the nature of matter was Dalton’s Atomic Theory: 1. All matter is composed of atoms, and atoms are indivisible and indestructible. What particle has no charge? […]
What is average force formula?
What is average force formula? The above expression defines force as the product of mass and change in velocity per time. ∴ The formula for the average force is F=m(v−uΔt) with m being the mass, v being the final velocity, u being the initial velocity and t being the change in time. Note: The average […]