What is the length of a mirror for a person of height h to see her or him reflection from head to toe? 1/2 What should be minimum height of a man? One can conclude from Komlos that the respectable height of six feet is also the ideal height for men. Is there any restrictions […]
What dog is closest to a wolf?
In which medium does light travel the fastest?
In which medium does light travel the fastest? Light waves travel much faster than sound waves. Light waves do not need a medium in which to travel but sound waves do. Explain that unlike sound, light waves travel fastest through a vacuum and air, and slower through other materials such as glass or water. When […]
What is Schwarzschild radius of a black hole?
What is Schwarzschild radius of a black hole? The Schwarzschild radius of a body is proportional to its mass and therefore to its volume, assuming that the body has a constant mass-density. The Schwarzschild radius of the supermassive black hole at the Galactic Center is approximately 12 million kilometres. Does a singularity have volume? Some […]
What are the types of magnetic?
What are the types of magnetic? There are three types of magnets, and they are as follows: Permanent magnet. Temporary magnet. Electromagnets. What are the six types of magnetism? There are six basic types of magnetization: (1) diamagnetism, (2) paramagnetism, (3) ferromagnetism, (4) antiferromagnetism, (5) ferrimagnetism, and (6) superparamagnetism. Diamagnetism arises from the orbiting electrons […]
What are the main parts of a flowering plant?
What are the main parts of a flowering plant? Most flowers have four main parts: petals, stamen (anther and filament), pistil (stigma, style and ovary), and sepals. After flowers are pollinated and fertilized, they produce seeds in the ovary of the flower. What would happen if a butterfly sips nectar from a flower? The flower […]
What are some of the challenges of reducing greenhouse gas emissions?
What are some of the challenges of reducing greenhouse gas emissions? Studies have shown that millions of species would likely be obliterated by 2100, and many others are currently facing extinction threats; forests that supply us a good fraction of our daily oxygen are charring away. Why is climate change such a difficult problem to […]
What are the two properties that make a metal?
What are the two properties that make a metal? Properties of Metals Luster: Metals are shiny when cut, scratched, or polished. Malleability: Metals are strong but malleable, which means that they can be easily bent or shaped. Conductivity: Metals are excellent conductors of electricity and heat. What is the only liquid metal? Mercury is the […]
How do gas laws apply in everyday life?
How do gas laws apply in everyday life? What are some examples of the gas laws in action in everyday life? Charles’s Law: Doubling the temperature of a gas doubles its volume, as long as the pressure of the gas and the amount of gas isn’t changed. A football inflated inside and then taken outdoors […]
What is the name of the insulator?
What is the name of the insulator? Examples of insulators include plastics, Styrofoam, paper, rubber, glass and dry air. The division of materials into the categories of conductors and insulators is a somewhat artificial division. What is string insulator? A suspension type string insulator consists of a number of porcelain discs connected in series through […]