How do you know if a property is intensive or extensive? Extensive properties, such as mass and volume, depend on the amount of matter being measured. Intensive properties, such as density and color, do not depend on the amount of the substance present. Physical properties can be measured without changing a substance’s chemical identity. Which […]
What is the basic principle of air wedge experiment?
What is the basic principle of air wedge experiment? The phase difference between the two rays is used to get interference fringes. It’s alternative light and dark fringes. The path difference between the rays has to be equal. What is meant by air wedge? Air Wedge. An air wedge is a simple interferometer used to […]
When galaxies are moving away from us what light color do we see?
Can you have a coefficient of restitution greater than 1?
Can you have a coefficient of restitution greater than 1? It normally ranges from 0 to 1 where 1 would be a perfectly elastic collision. It can be more than 1 if there is an energy gain during the collision from a chemical reaction, a reduction in rotational energy, or another internal energy decrease that […]
What are types of damped oscillation?
What are types of damped oscillation? The diagram shown on the right indicates three types of damped harmonic motion. Critically damped: The system returns to equilibrium as quickly as possible without oscillating. Underdamped: The system oscillates (at reduced frequency compared to the undamped case) with the amplitude gradually decreasing to zero. What is positive damping? […]
How do you find the number of moles?
Why does black make me look thinner?
Why does black make me look thinner? This illusion could explain why we think black is more flattering than white; black shapes appear thinner than white shapes, possibly because the contours of black objects have more definition. A lighter color object will have lines, shapes, and perhaps partitions on it that are very visible to […]
What are the characteristics of a warm front?
What are the characteristics of a warm front? Warm fronts are typically characterized by a transition from southeasterly to southwesterly winds. Unlike cold fronts, winds along the front itself are generally light and variable. Warm fronts, as their name implies, are also characterized by a rise in temperature, but also humidity. When a weather front […]
What is the shape of gef2?
What is the shape of gef2? trigonal planar What is Vsepr formula? The “AXE method” of electron counting is commonly used when applying the VSEPR theory. The electron pairs around a central atom are represented by a formula AXnEm, where A represents the central atom and always has an implied subscript one. Each E represents […]
Which one is the best example of law of conservation of mass?
Which one is the best example of law of conservation of mass? The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction. For example, when wood burns, the mass of the soot, ashes, and gases equals the original mass of the charcoal and the oxygen when it […]