What does it look like in a black hole? Black holes have gravitational fields so strong that even light cannot escape, so they are defined by the shell of a black, featureless sphere called an event horizon. But the holes can nevertheless be seen. As they consume matter that strays too close, they squeeze it […]
What is error data?
What kind of poem only has 3 lines?
What are the four main classes of macromolecules?
What are the four main classes of macromolecules? The four major classes of biological macromolecules are carbohydrates, lipids, proteins, and nucleic acids. In what organisms are starch and glycogen found? Starch (a polymer of glucose) is used as a storage polysaccharide in plants, being found in the form of both amylose and the branched amylopectin. […]
What prompts an engineer to improve world?
What prompts an engineer to improve world? But what prompts an engineer to improve our world? Well, they solve problems. Problems are an engineer’s inspiration, and maths and science are the creative tools they use to solve them. A mechanical engineer designed the engine, a mechatronics engineer devised that controls. How have engineers changed the […]
Is a kilo 1000?
Is a kilo 1000? Kilo is a decimal unit prefix in the metric system denoting multiplication by one thousand (103). It is used in the International System of Units, where it has the symbol k, in lower case. The prefix kilo is derived from the Greek word χίλιοι (chilioi), meaning “thousand”. What does kilo mean […]
Why do oil and water that mixed together separate into layers?
Why do oil and water that mixed together separate into layers? The water molecules attract each other, and the oil molecules stick together. That causes oil and water to form two separate layers. Water molecules pack closer together, so they sink to the bottom, leaving oil sitting on top of the water. Why do you […]
What stage are seeds formed?
What stage are seeds formed? Seeds are the product of the ripened ovule, after fertilization by pollen and some growth within the mother plant. The embryo is developed from the zygote and the seed coat from the integuments of the ovule. How fruits and seeds are formed Class 7? Fruits and Seed Formation After fertilisation, […]
What are the two materials normally used to construct insulation shielding systems?
What are the two materials normally used to construct insulation shielding systems? The insulation shield for a medium voltage cable is made up of two components: Semiconducting or stress relief layer. Metallic layer of tape or tap , drain wires, concentric neutral wires, or a metal tube. What is the circular mil area of 12 […]
Which ice shape lasts longest?
Which ice shape lasts longest? Rate of heat dissipation is proportional to surface area. A sphere has the smallest surface area to volume. A spherical ice “cube” would stay frozen the longest. Why is cubed ice better than crushed? Its only advantage is that it cools liquid more quickly. There’s more surface area, which means […]