Category: Physics

Why does oil make a rainbow in water? Most often seen in recently made puddles on the sides of roads, the oil refracts light much the same way a rainbow does. Simply put, the thin layer of oil floating on top of the water refracts the light which then bounces back up off the water […]

How do you calculate the buoyant force of water? In general, the buoyancy force on a completely submerged object is given by the formula: FB=Vρg, where V is the volume of the object, ρ is the density of the fluid, and g is gravitational acceleration. What buoyancy means? 1a : the tendency of a body […]

What are the different parts of the eye? What are the parts of the eye that make up vision? Cornea: This is the front layer of your eye. Pupil: The pupil is the black dot in the center of your eye that acts as a gateway for light. Iris: This part is typically referred to […]

How do you know if someone is sabotaging you? How do you tell if someone is sabotaging you? They make you jump through hoops others don’t have to. They talk about you behind your back. They tell lies to your boss or your colleagues about your work. They steal your ideas or try to take […]

Why are batteries called AA? But the most significant difference is size because batteries are called AA & AAA because of their size and dimension. AA doesn’t stand for anything. It is simply an identifier for a battery of given dimensions and nominal voltage. Are C batteries the same as AA? AA batteries are the […]

What kind of image is formed with a pinhole camera? The image formed by a pin hole camera is real, inverted and the nature of the image does not depend on the shape of the pinhole. What kind of image does a pinhole camera produce? A pinhole camera is a simple camera without a lens […]

Which amino acid is involved in the formation of disulfide bonds? The cysteine amino acid group is the only amino acid capable of forming disulfide bonds, and thus can only do so with other cysteine groups. What two functional groups are found in amino acids? Carboxyl and amino groups are always found in amino acids. […]

Is VX and VY constant? Here are some formulas that describe projectile motion: Thus the vertical velocity (Vy) is continually increasing. The horizontal velocity (Vx) remains constant and is equal to Vxo. If an object is pointed at an angle, the motion is essentially the same except that there is now an initial vertical velocity […]

What is a solubility graph? A solubility graph is drawn to display the solubility at different temperatures. From reading a solubility graph, one can determine the mass of solute that can dissolve at specific temperatures, whether or not a solution is saturated, and compare solubilities of different substances at specific temperatures. Which of the following […]

What is type solution of brass? Brass is an alloy made primarily of copper, usually with zinc. Usually you can think of brass as a solid solution consisting of zinc and other metals (solutes) dissolved in copper (solvent). How do you classify brass? According to the hardness, brass includes soft, semi-hard, hard and very hard […]