Category: Physics

What is a titration and what is it used to measure? A titration is a technique where a solution of known concentration is used to determine the concentration of an unknown solution. Knowing the volume of titrant added allows the determination of the concentration of the unknown. Often, an indicator is used to usually signal […]

Is hot tea conduction convection or radiation? Conduction is the movement of heat along a gradient within a solid. So the inner part of the teacup against the hot liquid will transfer that heat to the cooler outer part of the teacup (where it will be lost via thermal radiation). Convection is the movement of […]

Why is red light not good for plants? Many plants grown under only red light, such as plants grown indoors under only red LEDs, have a stretched, elongated appearance; the leaves are thin and large and plants become tall. However, when a relatively small amount of blue light is added to red light, extension growth […]

Is coffee an acid or base or neutral? Most coffee varieties are acidic, with an average pH value of 4.85 to 5.10 ( 2 ). Among the countless compounds in this beverage, the brewing process releases nine major acids that contribute to its unique flavor profile. Is Pepsi acid or base? Pepsi pH Level Pepsi […]

Is a car accelerating when turning? Acceleration is a vector quantity. So, we know that no matter what else might be going on, a turning car is accelerating – even if its speed is constant – since it is changing direction. Newton’s Second Law says that accelerations are caused by forces, so there must be […]

Is Delta G 0 for a reversible reaction? But for a reversible process delta G is always zero. This is not true; ΔG is always zero for a reversible process if it is carried out at constant temperature and pressure and the only kind of work involved is the p−V work. Which factor must be […]

What is the first step in attempting to free your vessel? 1 Answer. If you run aground in an outboard boat and you are not taking on water, the first step in attempting to free your vessel is to stop the boat’s engine, try to lift the out drive and shift the weight away from […]

What is the condition of floatation? Condition for Flotation. An object will float if the buoyancy force exerted on it by the fluid balances its weight, i.e. if FB=mg F B = mg . But the Archimedes principle states that the buoyant force is the weight of the fluid displaced. When any boat displaces a […]

What is the relationship between liquid pressure and depth? Pressure and depth have a directly proportional relationship. This is due to the greater column of water that pushes down on an object submersed. Conversely, as objects are lifted, and the depth decreases, pressure is reduced. Can silver float on water? Therefore, some objects that sink […]

What is the effect of dielectric and distance between the plate in parallel plate capacitor? The larger the dielectric constant, the more charge can be stored. Completely filling the space between capacitor plates with a dielectric increases the capacitance by a factor of the dielectric constant: C = KCo, where Co is the capacitance with […]