Why glass is called supercooled liquid? Glass is called supercooled liquid because glass is an amorphous solid. Amorphous solids have the tendency to flow but, slowly. I doest not form a crystalline solid structure as particles in solids do not move but here it moves. Hence it is called a supercooled liquid. Is ice a […]
What is the function of a lightning rod?
What is the function of a lightning rod? Lightning rods (and the accompanying protection system) are designed to protect a house or building from a direct lightning strike and, in particular, a lightning-initiated fire. Can I install my own lightning rod? Lightning protection is not a do-it-yourself project. Only experienced and reputable LPI-certified lightning protection […]
What are some ways to change the shape of an object?
What is the ability of your body to move effectively and efficiently?
What is the ability of your body to move effectively and efficiently? Physical fitness refers to the ability of your body systems to work together efficiently to allow you to be healthy and perform activities of daily living. Being efficient means doing daily activities with the least effort possible. Is the ability to reach a […]
What is the smallest unit of matter?
What is the smallest unit of matter? Atom What are the basics of matter? Matter: Matter is any substance which has mass and occupies space. All physical objects are composed of matter, in the form of atoms and molecules, which are in turn composed of protons, neutrons, and electrons. What are the components of matter? […]
What does negative impulse mean?
What does negative impulse mean? People forget what the sign of impulse means. Impulse is a vector, so a negative impulse means the net force is in the negative direction. Likewise, a positive impulse means the net force is in the positive direction. How does impulse affect velocity? The relationship between force and velocity for […]
Can company fire you without warning?
Can company fire you without warning? No, generally firing an employee without a warning is not considered illegal. However, it mainly depends on the type of employment contract you signed with the employer. Your employer does not need a good cause to fire you. At-will employees can also quit anytime without a reason and with […]
Is sodium sulfite acidic or basic?
Is sodium sulfite acidic or basic? Is sodium sulfite an acid or a base? Sodium sulphite, Na2SO3, is a salt made from the neutralization reaction between a strong base (sodium hydroxide) and a weak acid (sulphurous acid). Its aqueous solution is, therefore, distinctly basic in nature, with a pH value slightly greater than 7. What […]
What happens if US president dies?
What happens if US president dies? The order of succession specifies that the office passes to the vice president; if the vice presidency is simultaneously vacant, or if the vice president is also incapacitated, the powers and duties of the presidency pass to the speaker of the House of Representatives, president pro tempore of the […]
How does an object acquire a charge by rubbing?
How does an object acquire a charge by rubbing? When two different materials are rubbed together, there is a transfer of electrons from one material to the other material. This causes one object to become positively charged (the electron loser) and the other object to become negatively charged (the electron gainer). What charges will attract? […]