What is the half life of your parent isotope? A half life is the time it takes for half of the parent isotopes of an element to change to daughter isotopes. With alpha decay, the nucleus loses two protons and two neutrons; with beta decay only one electron is lost. What isotope is used to […]
What is a light wind called?
What is the fastest sound?
What is the fastest sound? Scientists have discovered the fastest possible speed of sound, a zippy 22 miles (36 kilometers) per second. Sound waves move at different speeds in solids, liquids and gases, and within those states of matter — for instance, they travel faster in warmer liquids compared with colder ones. Where can sound […]
Will a buzzard eat a dead human?
Will a buzzard eat a dead human? Buzzards’ stomach acid is significantly stronger than other animals’, so they can safely consume carcasses that are so decayed that nothing else would touch them. Are vultures immune to diseases? The species plays a key role in the ecosystem by removing rotting carcasses, thus preventing the spread of […]
Do people see you more attractive?
Do people see you more attractive? A new study shows that 20% of people see you as more attractive than you do. When you look in the mirror, all you see is your appearance. When others look at you they see something different such as personality, kindness, intelligence, and sense of humor. All these factors […]
How do you use the word understanding?
How do you use the word understanding? Understanding sentence example He is well educated, understanding and intelligent. She has great understanding of us. His tone was kind, even understanding , yet it tore a sob from deep in her lungs. “You have to be understanding ,” she reminded him again. He smiled at her, understanding […]
What are 2 similarities between magnetic and electric forces?
What are 2 similarities between magnetic and electric forces? Similarities between magnetic fields and electric fields: Electric fields are produced by two kinds of charges, positive and negative. Magnetic fields are associated with two magnetic poles, north and south, although they are also produced by charges (but moving charges). Like poles repel; unlike poles attract. […]
Is magnetism a form of electricity?
Is magnetism a form of electricity? The properties of magnets are used to make electricity. Moving a magnet around a coil of wire, or moving a coil of wire around a magnet, pushes the electrons in the wire and creates an electrical current. Electricity generators essentially convert kinetic energy (the energy of motion) into electrical […]
Are materials in which electrons can move easily?
Are materials in which electrons can move easily? In conductive materials, the outer electrons in each atom can easily come or go and are called free electrons. In insulating materials, the outer electrons are not so free to move. All metals are electrically conductive. Dynamic electricity, or electric current, is the uniform motion of electrons […]