How does nuclear energy affect the environment? Nuclear power plants use uranium as fuel. The process of mining uranium releases high amounts of carbon dioxide into the environment. Carbon dioxide is also released into the environment when new nuclear power plants are built. Finally, the transport of radioactive waste also causes carbon dioxide emissions. Which […]
Can you see outside in a submarine?
Can you see outside in a submarine? Can You See Outside When You are Underwater? No, Navy submarines don’t have windows or portholes so the crew can watch undersea life. Submarines have only periscopes for outside vision, and those are only used close to the surface, a periscope depth (PD). Where are periscopes used? Uses […]
What is the difference between terrestrial and celestial?
What is the difference between terrestrial and celestial? A celestial globe represents the stars and constellation. They are mapped onto a sphere to show how they appear in the night sky from the earth. A terrestrial globe is a sphere mapping the geographical formations of the earth. What are the 3 kingdoms of heaven? According […]
How could the rescue workers use squeezing?
How could the rescue workers use squeezing? Explanation: The generator underneath the tiles will convert the squeezing energy into electrical energy that will power the flashlight. What type of potential energy is a boulder resting at the top of a hill? abundant potential What are the energy transfers when walking up a flight of stairs? […]
Why is speed is called a scalar quantity?
Why is speed is called a scalar quantity? A scalar quantity has magnitude or size, examples: distance, speed. Vector quantities have both magnitude and direction, examples: force, velocity and field strength. Speed here does not have any specific direction and have only magnitude so is a scalar quantity. Is angular momentum scalar or vector? Angular […]
Why are producers the first organism in a food chain?
Why are producers the first organism in a food chain? Producers and consumers A food chain always starts with a producer , an organism that makes food. This is usually a green plant, because plants can make their own food by photosynthesis . The arrows in food chains show the way in which energy is […]
How do you calculate meters per second?
How do you calculate meters per second? The velocity in meters per second is equal to the distance in meters divided by time in seconds. How do I calculate my work hours? How to manually calculate employee hours Convert all times to 24 hour clock (military time): Convert 8:45 am to 08:45 hours. Next, Subtract […]
Who is Eden in the Garden of Eden?
Who is Eden in the Garden of Eden? Garden of Eden, in the Old Testament Book of Genesis, biblical earthly paradise inhabited by the first created man and woman, Adam and Eve, prior to their expulsion for disobeying the commandments of God. It is also called in Genesis the Garden of Yahweh, the God of […]
What does a messy girl mean?
What is Star absorption spectrum?
What is Star absorption spectrum? Absorption lines are usually seen as dark lines, or lines of reduced intensity, on a continuous spectrum. This is seen in the spectra of stars, where gas (mostly hydrogen) in the outer layers of the star absorbs some of the light from the underlying thermal blackbody spectrum. How do you […]