What is the slope of the line with vector equation? Clearly the answer is that the slope is the dot product of the two vectors: slope = g ยท u. There are two ways to think of the slope of a linear function in a given direction. We can use a symbol, such as s, […]
What is metal ductility?
What is metal ductility? Material properties Ductility is the ability of a material to be drawn or plastically deformed without fracture. It is therefore an indication of how ‘soft’ or malleable the material is. The ductility of steels varies depending on the types and levels of alloying elements present. Is all metals are ductile? Answer […]
How do you check if your immune system is strong?
Can a comet become a meteor?
Can a comet become a meteor? Comets: Comets are dirty space snowballs of mostly ice and dust that formed during the birth of the solar system 4.6 billion years ago. Most comets have stable orbits in the outer reaches of the solar system past the planet Neptune. When meteoroids collide with a planet’s atmosphere, they […]
What are two types of energy that can be released when something burns?
What are two types of energy that can be released when something burns? When we burn Natural Gas, the chemical energy is converted into light and heat. Chemical energy is energy that is stored in the bonds between chemical compounds. It is released when a chemical reaction takes place. What types of energy does the […]
What is light wave made of?
What is light wave made of? YES! Light is made of discrete packets of energy called photons. Photons carry momentum, have no mass, and travel at the speed of light. All light has both particle-like and wave-like properties. What are 3 characteristics of electromagnetic waves? Characteristics of electromagnetic waves As you learned in Wave Motion, […]
What does the flat part of a heating curve indicate?
What does the flat part of a heating curve indicate? Heating curves show how the temperature changes as a substance is heated up. Cooling curves are the opposite. They show how the temperature changes as a substance is cooled down. Just like heating curves, cooling curves have horizontal flat parts where the state changes from […]
What is selective breeding and why is it important?
What is selective breeding and why is it important? Selective breeding, also known as artificial selection, is a process used by humans to develop new organisms with desirable characteristics. Selective breeding can be used to produce tastier fruits and vegetables, crops with greater resistance to pests, and larger animals that can be used for meat. […]
Is baking bread an exothermic reaction?
Is baking bread an exothermic reaction? In addition to smelling delicious, baking bread is an endothermic example. The flour, yeast, and other ingredients used in creating the dough are heated. They absorb the heat making chemical reactions happen. Is Melting ice exothermic or endothermic? As a result, the temperature of the ice rises and it […]
How can you tell the difference between feldspar and quartz?
How can you tell the difference between feldspar and quartz? Explain Since both quartz and feldspar are considered hard and would scratch glass after a hardness test, you can tell the difference by the mineral’s cleavage. Quartz has poor or absent cleavage, while feldspar has excellent or good cleavage. Which is harder quartz or feldspar? […]