on April 27, 2022
What does a planet need to sustain life?
Space and AstronomyThe standard definition for a habitable planet is one that can sustain life for a significant period of time. As far as researchers know, this requires a planet to have liquid water. To detect this water from space, it must be on the planet’s surface. What are the 5 requirements a planet needs to sustain
on April 27, 2022
When was the Kuiper Belt discovered?
Space and AstronomyWhat was discovered in the Kuiper Belt in 2003? 2003 UB313 is now officially Eris! Eris, the largest dwarf planet known, was discovered in an ongoing survey at Palomar Observatory’s Samuel Oschin telescope by astronomers Mike Brown (Caltech), Chad Trujillo (Gemini Observatory), and David Rabinowitz (Yale University). How long ago was the Kuiper Belt formed?
on April 27, 2022
What are boundary points on number lines?
Space and AstronomyTo solve an inequality containing an absolute value, treat the ““, or “≥” sign as an “=” sign, and solve the equation as in Absolute Value Equations. The resulting values of x are called boundary points or critical points. What are boundary points in math? A point which is a member of the set closure
on April 27, 2022
Is there a simple graph with degree sequence?
Space and AstronomyThe sequence need not be the degree sequence of a simple graph; for example, it is not hard to see that no simple graph has degree sequence 0,1,2,3,4. A sequence that is the degree sequence of a simple graph is said to be graphical. What is the degree sequence of a simple graph? The degree
on April 27, 2022
How do you grow cork oak trees?
Space and AstronomyYou can grow cork oak trees by planting acorns if you can’t find a seedling plant. Young cork oak trees grow slowly and require regular irrigation. As the trees mature, they become drought tolerant. Still, even mature trees need a few good soakings per month over the course of the growing season. How long does
on April 27, 2022
Can bottle rockets fly without water?
Space and AstronomyWill a bottle rocket fly without water? Even with no weight of water inside the bottle, the bottle rocket will still fly upwards. Thsi is because the air in the bottle has a mass so when it is pushed downwards there is still an equal and opposite reaction pushing back up. Do rockets need water?
on April 27, 2022
What is the small body from which a planet originated in the early stages of the formation of the solar system?
Space and AstronomyThe various planets are thought to have formed from the solar nebula, the disc-shaped cloud of gas and dust left over from the Sun’s formation. The currently accepted method by which the planets formed is accretion, in which the planets began as dust grains in orbit around the central protostar. What is a small body
on April 27, 2022
What is meant by scalar product of two vectors?
Space and AstronomyThe scalar product of two vectors is defined as the product of the magnitudes of the two vectors and the cosine of the angles between them. What is scalar product of two vectors give an example? The scalar product (or dot product) of two vectors is defined as the product of the magnitudes of both
on April 27, 2022
What is the working distance of an objective How does it change with increasing magnification?
Space and AstronomyWorking distance and magnification are inversely related. As you increase the magnification, the working distance decreases very rapidly. Oil-immersion lenses, which are often used for 100x objective lenses, are very, very close the specimen when optimal focus is achieved. How does the working distance change when you increase the magnification? The working distance decreases as
on April 27, 2022
What are undefined terms?
Space and AstronomyUndefined terms are those terms that don’t require a formal definition. The four terms are point, line, plane, and set. A point is quite simply, a dot. Points are labeled with one capital letter. What are examples of undefined terms? In geometry, point, line, and plane are considered undefined terms because they are only explained