Category: Physics

What are the 3 factors that sustain life on Earth? What are the 3 interconnected factors that sustain life on earth? Solar energy, nutrient cycles, and gravity. What are the features that make life possible on Earth? What makes the Earth habitable? It is the right distance from the Sun, it is protected from harmful […]

How does popcorn popping relate to gas laws? This phenomenon can be explained by the Gay-Lussac gas law, which states that as the temperature of a gas increases, so does the pressure. During the explosion, the starch granules that contain the water vapor expand enormously – turning the kernel inside out and producing a fluffy […]

Is it harmful to reheat tea? First things first, do not reheat the tea if it has been left at room temperature for anywhere between 4 to 8 hours. If you forgot to have your tea for a maximum of 10 to 15 minutes, it is safe to drink. The presence of milk results in […]

Is it safe to eat iceberg ice? A: Iceberg ice is completely safe to consume. Q: Are icebergs salty? A: No. Icebergs are created from pure, fresh water and snow. What will happen if icebergs do not float? Unlike plants, animals can move so they would move as far as possible or be trapped and […]

What is 1 Joule equal to in Newton Metres? One joule equals the work done (or energy expended) by a force of one newton (N) acting over a distance of one meter (m). One newton equals a force that produces an acceleration of one meter per second (s) per second on a one kilogram (kg) […]

What percentage of C 14 remains after 3 half lives? Explanation: After 1 half-life, 12 of the C-14 would remain. After 2 half-life, 12 of the 12 of the C-14 = 14 of the C-14 would remain. After 3 half-life, 12 of the 14 of the C-14 = 18 of the C-14 would remain. What […]

Who wins the tug of war with what net force? 3 Answers. The force on rope is equal for both of them at any time. For winning the game the force on ground is responsible. What force pulls an object back to Earth? Gravity Is gravity push or pull? In general relativity, gravity neither pushes […]

Why is a normal eye not able to see clearly the objects placed closer than 25cm? Explanation. A normal eye cannot see clearly the objects that are placed closer than 25cm because the power of accommodation of the eye is 25cm which is exhausted. When the maximum accommodation of the eye is reached, the ciliary […]

Why does temperature increase volume? Another way to keep the pressure constant as the volume increases is to raise the average force that each particle exerts on the surface. This happens when the temperature is increased. So if the number of particles and the pressure are constant, temperature is proportional to the volume. When the […]

What is center of projection? The center of projection is the origin or source of the stream of projecting rays. Depending on the distance between the center of projection and the image plane, the distinction should be made between central (conical) projections and parallel (cylindrical) projections. What is foreshortening factor? 3) The ratio of projected […]