Category: Physics

Why is fuel density important? Density is an important fuel property with respect to volumetric fuel economy and maximum power. In such cases lower NOx emissions are observed due to lower peak pressure and temperature, as well as lower PM emissions due to the overall leaning of the air/fuel mixture. What is energy density of […]

What is an example of mechanical energy to heat energy? Rubbing your hands together converts mechanical energy to thermal energy. Turning on a light switch converts mechanical energy to electrical and radiant energy. Digesting food converts mechanical energy to chemical energy. What is the relationship between mechanical energy and heat? Mechanical energy can be converted […]

Do humans have omnivore teeth? Humans are definitely omnivores. The best evidence is our teeth: we have biting/tearing/ripping incisors and canines (like carnivores) and chewing molars (like herbivores). What happens to your body when u stop eating meat? Energy Loss. You may feel tired and weak if you cut meat out of your diet. That’s […]

Does the point lie on the circle? If the distance is greater than the radius, the point lies outside. If it’s equal to the radius, the point lies on the circle. And if it’s less than the radius, you guessed it right, the point will lie inside the circle. As simple as that! What is […]

At what pressure does all three phases coexist? Triple point of water The single combination of pressure and temperature at which liquid water, solid ice, and water vapor can coexist in a stable equilibrium occurs at approximately 273.1575 K (0.0075 °C; 32.0135 °F) and a partial vapor pressure of 611.657 pascals (6.11657 mbar; 0.00603659 atm). […]

How is a frame of reference used to describe motion? Frame of reference refers to something that is not moving with respect to an observer that can be used to detect motion. But if they use objects outside the bus as their frame of reference, they can tell they are moving. How can your frame […]

Does electronegativity increase down a period? Electronegativity is the measure of the ability of an atom in a bond to attract electrons to itself. Electronegativity increases across a period and decreases down a group. Why does electronegativity increase across Period 2? Electronegativity is a measure of an atom’s attraction for the electrons in a bond. […]

Is concave or convex better? Concave is better if you press and drag the analog sticks to move them. Convex is better if you push the analog sticks with your thumb to move them. Is a Heptagon convex or concave? Heptagons and other polygons can also be classified as either convex or concave. If all […]

What are the three types of flexible hose? Stainless Flexible Hoses (ss flex hose) can be categorized into 3 main pitch types in conformity with their intended uses: Wide, Standard and Closed (Compressed). What flare angle is used for aircraft fluid line fittings? General Questions for Aircraft Fluid Lines and Fittings Question Answer What is […]

What are the characteristics of a mature river? Mature river: A river with a gradient that is less steep than those of youthful rivers and flows more slowly. A mature river is fed by many tributaries and has more discharge than a youthful river. Its channels erode wider rather than deeper. What is the mature […]