Category: Physics

What is the relationship between the amplitude of a wave and its frequency? What does it do to the amplitude? Frequency; it decreases the amplitude of the wave as it propagates. Frequency; it increases the amplitude of the wave as it propagates. How can you tell if a wave has a high or low amplitude? […]

When an inductor is connected to a 200v? Solution. When the inductor is connected across the 200 V DC circuit 1 A current flows because in this case the inductor simply acts as a resistor and there is no inductive reactance. When an inductor is connected to a 230V DC source? When an inductor is […]

What chemicals are mixed when making fire? When potassium chlorate and ordinary table sugar are combined, and a drop of sulfuric acid is added as a catalyst, the two react violently with each other, releasing large quantities of heat energy, a spectacular purplish flame, and a great deal of smoke. Can you describe the solutions […]

Is the image in the mirror real? When you place an object in front of a mirror, you see the same object in the mirror. This image that appears to be behind the mirror is called the image. A real image occurs when light rays actually intersect at the image, and is inverted, or upside […]

What is a non example of a molecule? What Is Not a Molecule? Single atoms of elements are not molecules. A single oxygen, O, is not a molecule. When oxygen bonds to itself (e.g., O2, O3) or to another element (e.g., carbon dioxide or CO2), molecules are formed. What is a non example of a […]

What is an acoustician? The Job and What’s Involved. Acoustics is the name given to the branch of science that deals with the study of sound. Acousticians help to manage, regulate and control noise and vibration in the home, in workplaces and the environment. What are the types of sound? There are two types of […]

Can helium start a fire? These balloons are commonly called helium balloons, which is a misnomer since helium is not flammable and a helium balloon will not explode when it comes in contact with fire. Since helium is expensive, the gas commonly used to inflate gas balloons is hydrogen, which is extremely flammable. What are […]

Is Ferrel cell high or low pressure? At the equator there is an area of low pressure, due to the rising and expanding air. At around 30º North the sinking air creates an area of high pressure. This cell is thermally direct. The Ferrel cell is found between the Hadley and Polar cells and lies […]

How do I get arcseconds? Because 2π times the radius equals the circumference, circle angles can be measured in radians, with 2π of these making up one full revolution. Or similarly, 0.017453 radians per degree. To convert from radians to arcseconds, multiply by 206,265 arcseconds per radian. What is 1 arc second in meters? Arc […]

Is angular momentum axial or polar vector? Likewise, the momentum vector is the velocity vector (a polar vector) times mass (a scalar), so is a polar vector. Angular momentum is the cross product of a displacement (a polar vector) and momentum (a polar vector), and is therefore a pseudovector. What is the meaning of axial […]