Category: Physics

What is the rate constant for the reverse reaction? Consequently, the equilibrium constant for the reverse reaction, the decomposition of water to form O2 and H2, is very small: K′=1/K=1/(2.4×1047)=4.2×10−48. What is a reverse reaction energy? The activation energy (Ea) for the forward reaction is the potential energy difference between the activated complex and the […]

What is the value of 12 superscript 0? The answer to this question is 1. How do you solve an expression with two variables? Divide both sides of the equation to “solve for x.” Once you have the x term (or whichever variable you are using) on one side of the equation, divide both sides […]

What are the 4 major climate regions? The world has been divided into different climate zones. We have four main zones and two of these have sub zones. The basis of this division is variations in climate, vegetation, air pressure and the average temperature. The main zones are: arctic, temperate, subtropical and tropical. Which climate […]

Which chemical bond is strongest? In chemistry, covalent bond is the strongest bond. In such bonding, each of two atoms shares electrons that binds them together. For example, water molecules are bonded together where both hydrogen atoms and oxygen atoms share electrons to form a covalent bond. Which bond is hardest to break? molecular covalent […]

How does cycling uphill affect the maximum speed of this cyclist? Since the power required to overcome air resistance is proportional to the bicycle speed cubed (if there is no wind, and s = v), an exponential increase in power is needed as the cyclist attempts to increase speed. Going uphill adds gravity to the […]

Why do larger alkanes have higher boiling points? Alkanes experience inter-molecular van der Waals forces. Stronger inter-molecular van der Waals forces give rise to greater boiling points of alkanes. Which group has the lowest boiling point? noble gases Do aldehydes have higher boiling points than alcohols? The polar carbon-to-oxygen double bond causes aldehydes and ketones […]

Do arctic foxes have good hearing? Arctic foxes have incredible hearing that allows them to identify the precise location of their prey under the snow. To catch their prey, they leap up in the air and pounce down into the snow on the prey below. How fast is an arctic fox? 30 miles per hour […]

What are the basic components of a power supply? It is basically consisting of the following elements: transformer, rectifier, filter and regulator circuits. Power supply units (PSU) are used in computers, amateur radio transmitters and receivers, and all other electronic equipment that use DC voltage as an input. What are the 4 parts in a […]

What force is necessary to give a 3.0 kg cart an acceleration of 5.0 m s2? The book can be seen in the Wren Library of Trinity College, Cambridge. Ex 1) What is the net force necessary to give a 3.0 kg mass, initially at rest, an acceleration of 5.0 m/s2? Ex 1) What is […]

What happens when monochromatic source is replaced by white light? Answer White light consists of waves of innumerable wavelengths ranging from violet to red color. So if monochromatic light in Young’s double-slit experiment is replaced by white light, then the waves of every wavelength form their separate interference patterns. So the central fringe is white. […]