What are 2 facts about the geosphere? The geosphere is the earth’s solid rock or rigid outer layer known as the crust. Without the geosphere it would not be possible for humans to live on the planet because there would be no solid ground. Included in the earth’s geosphere are the rocks, minerals, molten rock, […]
When should I use planetary gears?
When should I use planetary gears? Generally, planetary gears are used as speed reducers. They are used to slow down motors and increase the torque. Torque is the working power of the machine. But we’ve seen our planetary gears turned around to be used as speed increasers, too. Why do automatic transmissions use planetary gears? […]
Why is fluorine-18 unstable?
Why is fluorine-18 unstable? Fluorine-18 Of the unstable nuclides of fluorine, 18F has the longest half-life, 109.739 minutes. It has two decay modes, of which the main one is positron emission. For this reason 18F is a commercially important source of positrons. Like all positron-emitting radioisotopes, 18F also may decay by electron capture. Why is […]
Which of the following is the best example of weathering?
Which of the following is the best example of weathering? The correct answer is (a) the cracking of rock caused by the freezing and thawing of water. What causes physical weathering quizlet? Physical weathering can be caused when rocks formed under pressure deep within the Earth become exposed at the surface. When overlaying material is […]
What does an explosion shockwave feel like?
What does an explosion shockwave feel like? They feel a jolting sensation that is not like anything they’ve ever experienced before in their lives. It can be much more severe than that and produce unconsciousness and damage to the body. Some of that is related to other aspects of the explosion obviously. Do you feel […]
Why does it occur when the brakes are applied suddenly?
Why does it occur when the brakes are applied suddenly? Answer: It is due to inertia of motion. When the driver of a fast moving car suddenly applies brakes the passengers in the car? When a moving bus suddenly applies brakes, the passengers sitting in it fall in the forward direction. This can be explained […]
Why are many rocks round?
Why are many rocks round? Maybe you’ve noticed that many of the rocks you see are rounded. These rocks’ jagged edges are a sign that they have fairly recently broken off from a larger block of rock. The reason for this is that over time, weathering tends to make rocks round. What are round rocks […]
What are the similarities and differences between binary fission and mitosis?
What are the similarities and differences between binary fission and mitosis? Binary fission is a method of asexual reproduction which single-celled organisms, usually prokaryotes, use to create a copy of themselves. Another term for the process is cellular cloning. Mitosis is cell division that results in two identical daughter cells and is primarily used for […]
What are safety symbols?
What are safety symbols? Safety symbols, hazard symbols or safety labels are meaningful and recognizable graphical symbols that warn of or identify hazards associated with the location or item. What Colour is safety signs? Health and Safety (Safety Signs and Signals Regulations) 1996 Type Shape Colour WARNING SIGNS These signs give warning of potential risks […]