# Physics

## Air Resistance Formulas for Several Scenarios with Example

Friction between air and another object is known as air resistance. Let us examine how to determine an object’s air resistance when it is falling. A falling object’s air resistance can be calculated by multiplying the air density times the drag coefficient times the area by two and then multiplying by velocity. Gravity and air …

## Hammer Drill For Metal: What, When, How (Science Behind)

Hammer drill is a power drill that basically uses hammering mechanism. Let us further discuss hammer drill for metals. Hammer drill uses the rotatory motion in order for it to drilling process. Hammer drill has several terms, such as percussion drill and impact drill. In this whole process the electrical energy is converted into mechanical …

## 3 Facts On Doppler Effect For Light:What,How,Examples & FAQs

The Doppler effect applies to both sound waves as well as light waves. So let us first analyze what the doppler effect of light is. The Doppler effect of light is defined as the change in the frequency of light viewed by the observer as a result of the relative motion of the observer and …

## Is Nuclear Fusion Renewable: 5 Factors You Should Know !

Nuclear fusion is a reaction in which two comparatively lighter nuclei fused into each other to produce a heavier nucleus. Let us know whether nuclear fusion is renewable or not. Nuclear fusion is renewable in nature as it generates abundant energy which in turn powers further nuclear fusion reactions. In this way nuclear fusion becomes …

## Is sliding friction static : 3 Facts You Should Know!

Sliding friction is a phenomenon in which two objects slide against each other in order to create resistance. Let us focus on whether sliding friction is static or not. Sliding friction is not static because in sliding friction the two objects are in motion and they are sliding against each other whereas static signifies the …

## Is Vanadium Magnetic? 5 Facts You Should Know!

Vanadium is a silver-grey coloured transition metal of atomic number 23 which is very hard. Let us know whether vanadium is magnetic or not. Vanadium is paramagnetic in nature with a molar magnetic susceptibility of 255 x 10-6 cm3/mol at the temperature of 298 K. Vanadium is attracted weakly by the externally applied magnetic fields …

## Is Nuclear Fusion Unlimited & Free Energy

Nuclear fusion reaction is a combination reaction that fuses two lighter nuclei into a heavier nucleus. Let us focus on whether nuclear fusion is unlimited and free energy or not. Nuclear fusion is unlimited because it emits limitless free energy as the by-product of the chemical reaction. As the nuclear fusion is a cumulative process …

## How Does A Microwave Vent Work: The Science Behind It

A vent is used to extract toxin and smoke and sway them away outside the home. A microwave vent cleans the fumes from oven. Let us study the working of microwave vent. Microwave vent fitted with a fan that air through the vent. The blown air carries smoke, steam odor and heat generated during the …

## How Does A Microwave Sensor Work: The Science Behind It

We are familiar with microwave oven to cook the food. It is fitted with a sensor which helps in the cooking process. Let us learn working of such microwave sensor. Microwave sensor uses high frequency radio waves operating at 360°. The working principle of microwave sensor is same like radar that emits the wave that …

## How To Reverse Drill Direction: The Science Behind It

The direction of the rotation of a drill can be reversed. Let us discuss about how to reverse drill direction with detailed facts and science behind it. Here is the process to reverse drill direction: Supply the electric current to the drill machine. Press the left button on a drill. Current direction through the motor …

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