What is the closest star? Proxima Centauri How do stars die? Stars die because they exhaust their nuclear fuel. Once there is no fuel left, the star collapses and the outer layers explode as a ‘supernova’. What’s left over after a supernova explosion is a ‘neutron star’ – the collapsed core of the star – […]
Does a voltage divider affect current?
Does a voltage divider affect current? Voltage dividers If you use resistors with a very high resistance value (e.g. 1,000,000Ω = 1MΩ) the current flowing through the divider will be small and any current drawn by your ADC will divert a large proportion of the current and this will distort the operation of the voltage […]
What statement is true of atoms?
What statement is true of atoms? The statement that is TRUE about atoms is “electrons determine the size of the atom.” The electrons surround the nucleus of an atom and they determine the space in which an atom occupies. Which element has 4 protons 4 neutrons and 3 electrons? Atomic Number Name Protons Electrons Lithium […]
What is the end behavior model?
What is the end behavior model? For all polynomials, an end behavior model is simply. the leading term! For all rational functions, an end behavior model is. simply the ratio of the leading terms from the. numerator and denominator! What are end behavior models? End Behavior Models: End behavior models model the behavior of a […]
How do we measure pressure?
How do we measure pressure? The three methods for measuring pressure are absolute, gauge, and differential. Absolute pressure is referenced to the pressure in a vacuum, whereas gauge and differential pressures are referenced to another pressure such as the ambient atmospheric pressure or pressure in an adjacent vessel. Why do we measure pressure? Across various […]
What happens when air pressure rises?
What happens when air pressure rises? That means air exerts 14.7 pounds per square inch (psi) of pressure at Earth’s surface. High in the atmosphere, air pressure decreases. With fewer air molecules above, there is less pressure from the weight of the air above. As the air rises, the water vapor within it condenses, forming […]
What solar system bodies have both rings and moons?
What solar system bodies have both rings and moons? Both the Earth and Pluto are orbited by one large moon. The four largest planets – Jupiter, Saturn, Uranus and Neptune -also have rings. They are made of pieces of ice and rock ranging from in size from mountains to cigarette smoke. Did Earth used to […]
What does an electron dot diagram show?
What does an electron dot diagram show? Electron dot diagrams show the valence electrons for an atom. The dot diagrams are the same for each element in the representative element groups. Which is the electron dot structure of nitrogen? In the s block, Group 1 elements have one valence electron, while Group 2 elements have […]
What happens when two waves arrive at one location?
What happens when two waves arrive at one location? Interference is a phenomenon of wave interactions. When two waves meet at a point, they interfere with each other. In constructive interference, the amplitudes of the two waves add together resulting in a higher wave at the point they meet. How do you prove beat frequency? […]
What is the primary function and importance of the respiratory system?
What is the primary function and importance of the respiratory system? Your respiratory system is the network of organs and tissues that help you breathe. This system helps your body absorb oxygen from the air so your organs can work. It also cleans waste gases, such as carbon dioxide, from your blood. Common problems include […]