Can tsunamis be stopped? Tsunamis could be stopped before they hit the coastline, a Welsh mathematician has proposed in a study of deep-ocean sound waves. Dr Usama Kadri, from Cardiff University’s School of Mathematics, has suggested that firing deep-ocean sound waves at an oncoming tsunami could save lives and reduce on-shore damage. What disaster will […]
What is range of normal distribution?
What is range of normal distribution? The area under each curve is one but the scaling of the X axis is different. Note, however, that the areas to the left of the dashed line are the same. The BMI distribution ranges from 11 to 47, while the standardized normal distribution, Z, ranges from -3 to […]
Is a piece of information that is used to support a main idea?
Is a piece of information that is used to support a main idea? Evidence. Evidence is any piece of information used to support an idea or argument. Although evidence is not necessarily based in quantifiable fact, it is used to reinforce the idea of an argument, topic sentence, or main idea. When you look for […]
Who can run faster Boy or girl?
Does energy have momentum?
Does energy have momentum? Light indeed carries energy via its momentum despite having no mass. Public Domain Image, source: Christopher S. Baird. In the above equation, E is the total energy of the particle, p is the momentum of the particle (which is related to its motion), c is the speed of light, and m […]
What is the L quantum number?
Are combustion engines more efficient?
Are combustion engines more efficient? How efficient are engines? Combustion engines are stupefyingly inefficient. Most diesel engines do not even have a thermal efficiency of 50%. Of every gallon of diesel burned by a combustion engine, less than half of the energy generated becomes mechanical energy. How long will internal combustion engines be around? The […]
What is the formula of the salt formed by the reaction of aqueous phosphoric acid with aqueous potassium hydroxide?
What is the formula of the salt formed by the reaction of aqueous phosphoric acid with aqueous potassium hydroxide? How to Balance: H3PO4 + KOH = K3PO4 + H2O| Breslyn.org. What is the net ionic equation for potassium hydroxide and phosphoric acid? The net ionic equation for the reaction of aqueous solutions of phosphoric acid […]
What happens if you triple the distance between two objects?
What happens if you triple the distance between two objects? If the separation distance between any two objects is tripled (increased by a factor of 3), then the force of gravitational attraction is decreased by a factor of 9 (3 raised to the second power). What is the formula of gravitational force? The mathematical formula […]
Can atoms be broken down into smaller pieces?
Can atoms be broken down into smaller pieces? Under normal circumstances an atom can be broken down into any smaller particles, but we humans, have devised ways to break the atom apart. An atom itself is made up of three tiny kinds of particles called subatomic particles: protons, neutrons, and electrons. How many atoms are […]