Category: Physics

How can we use decantation in our daily life? 9 Decantation Examples in Everyday Life Wine Bottles. Separation of Glycerin from Biodiesel. Decontamination of Mercury. Milk Cream. Sugar Beet Processing. Nanotechnology. Blood Fractionation. Cooking. Which mixtures can be separated by decantation? Answer: A common example is decantation of oil and vinegar. When a mixture of […]

How do you know if ions are present? When an atom is attracted to another atom because it has an unequal number of electrons and protons, the atom is called an ION. If the atom has more electrons than protons, it is a negative ion, or ANION. If it has more protons than electrons,it is […]

What are the function of centrifugation? Centrifugation is a technique used for the separation of particles from a solution according to their size, shape, density, viscosity of the medium and rotor speed. The particles are suspended in a liquid medium and placed in a centrifuge tube. What is the importance of centrifugation? Importance of centrifugation. […]

Why does a paperclip sink in soapy water? When you initially drop the paper clip into the bowl of water, it sinks, as the paperclip is too dense. Adding the dish soap breaks the bonds between the water molecules, thus breaking the surface tension and causing the paper clip to sink. Does a paperclip sink? […]

Can cause a change in motion? A force is a push or pull that can cause an object to move, stop, or change speed or direction. 3. The greater the force, the greater the change in motion. Gravity (the earth’s pulling force) and friction (the force between two surfaces) are common forces that work against […]

Is 100 yuan a lot of money? During my stay in Beijing, I’ve quickly found that one of the greatest parts of the city is the amount of fun you can have without breaking your bank. One hundred yuan, the equivalent of about $14.50 USD, goes much further here than most other cities in the […]

How does an object get its weight? The weight of an object is the force of gravity on the object and may be defined as the mass times the acceleration of gravity, w = mg. Since the weight is a force, its SI unit is the newton. Density is mass/volume. Is the weight of an […]

How much clearance do you need in front of disconnect? The minimum working space height required for the disconnect switch is 61/2 feet (see Figure 6). The minimum working space height for electrical equipment has not always been 61/2 feet. For many years, the working space height (or headroom) was required to be at least […]

How many feet do you fall per second? 32 feet What is the use of per second? Per second per second is defined as that the speed something is moving is increasing so many meters per second in every second. Why is 1 second a second? Today, one second is defined as “9,192,631,770 periods of […]

Is table salt in water a colloid suspension or true solution? When the salt is thoroughly mixed into the water in this glass, it will form a solution. The salt will no longer be visible in the water, and it won’t settle to the bottom of the glass. A colloid is a homogeneous mixture with […]