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?
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
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
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
How do you prove the sum of the angles in a quadrilateral 360?
Space and AstronomyA quadrilateral is a polygon which has 4 vertices and 4 sides enclosing 4 angles and the sum of all the angles is 360°. When we draw a draw the diagonals to the quadrilateral, it forms two triangles. Both these triangles have an angle sum of 180°. Therefore, the total angle sum of the quadrilateral
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
What is the oldest sundial?
Space and AstronomyThe oldest known sundial was made in Egypt in 1500 BC. It was L-shaped. The top of its vertical leg cast its shadow on the horizontal leg. How old is the oldest sundial? about 1,500 years BC The oldest known sundial was found in Egypt and dates from the time of Thutmose III, about 1,500
Can you divide arum lilies?
Space and AstronomyCalla lily division is only necessary when the clumps start to decline, but if you want more rhizomes to fill in the garden, it’s safe to divide them every three to five years. If you divide them too often, however, they will never quite reach their full potential. Should you cut back arum lilies? Pruning
How many critical points can a function have?
Space and AstronomyA polynomial can have zero critical points (if it is of degree 1) but as the degree rises, so do the amount of stationary points. Generally, a polynomial of degree n has at most n-1 stationary points, and at least 1 stationary point (except that linear functions can’t have any stationary points). Can a function
What are the four representations of a function?
Space and AstronomyWhat are the 4 ways to represent a function? Key Takeaways A function can be represented verbally. For example, the circumference of a square is four times one of its sides. A function can be represented algebraically. For example, 3x+6 3 x + 6 . A function can be represented numerically. A function can be