Year: 2021

What is the stroke length? The stroke length is how far the piston travels in the cylinder, which is determined by the cranks on the crankshaft. Engine displacement is calculated by multiplying the cross-section area of the cylinder (determined by the bore) by the stroke length. How is stroke length calculated? For example, if we […]

Is a color spectrum? Radiation of a single frequency is called monochromatic. When this frequency falls in the range of the visible spectrum, the colour perception produced is that of a saturated hue….The visible spectrum. colour* red wavelength (nm) 650 frequency (1014 Hz) 4.62 energy (eV) 1.91 What is another name for color spectrum? What […]

What is complex carbohydrate cellulose composed of? Cellulose is a polysaccharide consisting of a linear chain of several hundred to many thousands of linked glucose units. Cellulose is an important structural component of the cell walls of plants and many algae. What statement best describes both insulin and glucagon? They both store energy, but only […]

Can you have 0% humidity? The concept of zero percent relative humidity — air devoid of water vapor — is intriguing, but given Earth’s climate and weather conditions, it’s impossible. Water vapor is always present in the air, even if only in minute quantities. What is the highest dew point on record? The highest dew […]

Does copper react with oxygen at room temperature? Answer: At high T , you may get a state where Cu(I) oxide is stabler, but in the presence of excess Oxygen, it will be oxidized to Cu(II) oxide. 0.150 g of copper reacts with oxygen form 0.188 g of copper oxide. Why do copper vessels lose […]

What would an atom with 10 protons be called? There are 10 protons, and 10 electrons in un-ionized neon. Does an atom have 10 electrons? Once one shell is full, the next electron that is added has to move to the next shell. So… for the element of NEON, you already know that the atomic […]

What are three examples of translucent objects? Some examples of translucent objects are frosted glass, butter paper, tissue, various plastics, and so on. Opaque substances do not allow the transmission of light….Some examples are: Transparent: Clean glass, water, air. Translucent: Frosted glass, wax paper, butter paper, smoke. Opaque: Stone, metal, wood. Which of the following […]

Is Mt St Helens a supervolcano? Mt. Saint Helens is not even the most likely volcano in the Cascades to produce a “supervolcanic” eruption. It has been very active over the last 10,000 years, but most tend to be small, bleeding out material frequently over this period. Is Pinatubo a supervolcano? Supervolcano eruptions are extremely […]

What is not a property of liquids? The option (D) is not a property of the liquid state. A liquid boils at lower temperature at the top of a mountain than at the sea level. This is because the pressure at the top of a mountain is lower than that at the sea level. This […]

What is the advantage of sexual reproduction? The advantages of sexual reproduction: produces genetic variation in the offspring. the species can adapt to new environments due to variation, which gives them a survival advantage. a disease is less likely to affect all the individuals in a population. Why is sexual reproduction better than asexual? Advantages […]