# Category: Space and Astronomy

### What are rational expressions used for?

Rational equations can be used to solve a variety of problems that involve rates, times and work. Using rational expressions and equations can help us answer questions about how to combine workers or machines to complete a job on schedule. How rational expressions are used in real-life? Rational equations can be useful for representing real-life

### How do you calculate magnifying power?

Total magnifying power, or total magnification, can be calculated by taking the magnification of the eyepiece lens being used, which is usually 10 times, and multiplying this value by the magnification of the objective lens, which will differ depending on which of the objective lenses you choose to use. How do you calculate the magnifying

### Why do astronauts use lithium hydroxide when they go into space?

Lithium hydroxide is an attractive choice for space flight because of its high absorption capacity for carbon dioxide and the small amount of heat produced by the reaction. What is lithium hydroxide used for in space? Answer. Lithium hydroxide is used in the Space Shuttle and in submarines to remove carbon dioxide gas out of

### What is the definition of base area?

It refers to the area of one of the bases of a solid figure. It can be used to determine the volume of solid figures. What is a definition for a base? base, in chemistry, any substance that in water solution is slippery to the touch, tastes bitter, changes the colour of indicators (e.g., turns

### How do you find the parts of a circle?

The 4 main parts of a circle are radius, diameter, center, and circumference. The center of the circle is the point that is equidistant from all the sides of the circle. The radius is the length of the line from the center of the circle to any point on the curve of the circle. What

### What is axist?

What is a simple definition of axis? 1 : a straight line about which a body or a geometric figure rotates or may be thought of as rotating the earth’s axis. 2 : a line of reference used to assign numbers to locations in a geometric plane. axis. noun. ax·​is | \ ˈak-səs \ What

### Which of the following are possible cross sections of a cube?

Cross Sections of a Cube a single point (a vertex of the cube) a line segment (an edge of the cube) a triangle (if three adjacent faces of the cube are intersected) a parallelogram (if two pairs of opposite faces are intersected – this includes a rhombus or rectangle) a trapezium (if two pairs of.

### How much are Space Raiders?

Space Raiders were launched in 1987. at a retail price of 10 pence it remained at this price until late October 2007, when the price increased to 15p. It later increased to 25p before lowering to 20p. How old are Space Raiders? Produced by the well-know British food brand KP Snacks, Space Raiders first appeared

### What moon would you see high in the southern sky at 3 am?

Which phase of the Moon would rise at 3 am? Waning Crescent Waning Crescent: The Waning Crescent is the eighth and final phase in the cycle of phases. This Moon phase occurs once a month, rising around 3 AM, and setting around 3 PM, sticking around for approximately 7.38 days before going into the New

### Is the sun blue on Mars?

On Mars, the sun comes and goes with a blue glow. On Uranus, the sunset sky transitions from blue to turquoise, according to NASA. And on Titan, one of Saturn’s moons, the sky turns from yellow to orange to brown as the sun dips beneath the horizon. Why does Mars have a blue sun? “Martian