The pascal can be expressed using SI derived units, or alternatively solely SI base units, as:

1Pa=1N/m2=1kg/ms2

where N is the newton, m is the metre, kg is the kilogram, and s is the .....

You might have learnt about pressure. It is the force per unit area. i.e. P = F             A          = m * g    (m= mass, g = acceleration due to gravity and A= .....

Did this answer help you? Please let us know if we could help you in any other way. Please feel free to ask if you do not .....

The transmission of disease by insects is not a voluntary action. They transmit disease .....

Here we can talke LHS and simplify it to get RHS. So, LHS = [ tanA + secA -1 ] / [ tanA - secA +1]                 Now put   1 = sec2A - tan2A in numerator only,  =  [ tanA + secA -(sec2A - .....

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Did you mean gravatational field intensity? Is so,  The gravitational field intensity (EG) or (g) is the force on a unit mass at a point in the field. Since the force (F) on a body of mass m in a gravitational .....

To model this problem, we make three hops to the left. The first hop is 3 units to the left. Then we hop 3 units to   the left and again 3munits to the left.  Finally from -9 ,  9 units to the right. So, we can write this, ( -3) + .....

To solve this problem you have to know laws of indices. Hope you know it. Given,   1y-xmx+1ymy+1xm1x-ym

Take LCM,  we .....

Pacific is the largest .....

To find OC in terms of  a  and  b, we can use the triangle law of vector adddition. In triangle OAB, AB = AO + OB = OB -OA = b - a. Again in triangle OBC, CB = CO + OB  CB = -OC + b = b - OC We have given, AB = 3 CB so, .....

You may have learnt about the fossil fuels. Fossil fuels are formed from the remains of living organisms after millions of years. Coal is one of the fossil fuels which is combustible (able to catch fire and burn easily)  Coal is black, gray .....

To know the longest and shortest side we have to calculate the size of angles. So, <A+ <B + <C = 180o or, <A = 65o As we know, In any triangle, the largest side and largest angle are opposite one another. .....

To know the longest and shortest side we have to calculate the size of angles. So, <A+ <B + <C = 180 or, <A = 60 As we know, In any triangle, the largest side and largest angle are opposite one another. .....

The balanced chemical equation is  H2 + Cl2 → .....

Differences between drone bee and worker bee are: - A drone is a male bee whereas a worker bee is a female bee.   -  A drone's primary role is to mate with a fertile queen and     a worker bee's primary role .....

The scientific name of pea plant is Pisum sativum or Pisum sativum. Here Pisum is the genus name. And sativum is the specific name. While writing scientific name we should follow the following rules: Genus name is .....

Before rainy (wet) season, comes dry season. During that period, the temperature near the earth's surface is very high. You may have learnt that during that period, water evaporates .....

For example, carbon atom has 6 protons and 6 neutrons. You may know,  No. of protons + No, of neutrons = Atomic mass  6 + 6 = 12 So, No. of neutrons = Atomic mass - No. of protons (atomic number)            .....

If two points P ( x1 , y1)  &   Q  ( x2 , y2)   are guven ,  Then mid point of PQ is given by ( x , y) = [ ( x1+ x2)/ 2 , ( y1 + y2)/2 ]        .....

To find the volume we need to find the area of cross-section. Here  area of cross-section =  [ 4 x 1 + 2 x 1 ] sq.inch                                 .....

Some non - metals and their uses are listed below.  1. Oxygen is used for breathing.  2. Chlorine is used for purifying water. 3. Phosphorous is used in crackers. 4. Non - metal like nitrogen is used in fertilizers.  5. Graphite .....

The metalloids are a group of elements in the periodic table. They are located to the right of the post-transition metals and to the left of the non-metals. Metalloids have some properties in common with metals and some in common with .....

Lead is a metallic chemical element which is classified among the poor metals of the periodic table of elements. It has a wide range of historical and current applications, and many consumers own products which contain it. This element does not .....

It is mercury.  Mercury is a metal.  It is the only metal which is liquid in room .....

Zinc is a metallic chemical element found in reasonable abundance around the world. It is classified in the transition metals, along with nickel and mercury, among others. The metal is used in a variety of alloys and compounds which have a .....

The term carat describes the amount of gold present - 24 carats is pure gold. The Atomic Number of this element is 79 and the Element Symbol is .....

Silver is a metallic chemical element with an atomic number of 47 and the symbol Ag. The “Ag,” incidentally, is from the Latin word argentum. This is probably one of the more well known chemical elements, since some people own .....

 Copper, "the red metal", is one of the most electrically conductive of all the metal elements.

While its electrical properties, in combination with its ductility and malleability, have helped copper to become an .....

For example, the color yellow is an intensive property of matter for bananas. No matter what size the banana grows to be, the object is still going to be yellow. Another example of an intensive property of matter is an object's luster. An .....

In the experiment below, the nail does not rust when air - containing oxygen - or water is not present:

Calcium chloride absorbs water in the right-hand test .....

If the world had no atmosphere, it would be very cold. Astronomers studying other planets know that planets without atmospheres have wildly fluctuating temperatures or they are cold all the time. The Earth’s air helps to moderate the .....

The uses of air are as follows: 1. Air contains oxygen, which is essential for life. All living things respire by breathing in air. The air we breathe in is inhaled air. The air we breathe out is exhaled air. 2. Air supports burning or combustion. .....

Firstly air is the composition of different gases, dust particles and water vapour in the atmosphere. Air has many properties which you may know them by experiencing in your everyday life. As we also know that we cannot live with air. The main .....

You may have noticed fine powdery particles while cleaning your TV screen, computer screen or furniture. You remove these particles by sweeping, wiping or brushing. These fine powder which consists of very small particles of the substances are .....

You know, liquid water changes itno gaseous phase on heating.  The gaseous phase of water is water vapour.  The air contains water vapour in a little .....

You know that, we throw out carbon dioxide during respiration.  Carbon dioxide is a compound gas.  It is composed of carbon and oxygen.  Its molecular formula is CO2.  Plants need carbon dioxide to prepare food, during .....

Oxygen is the second most aboundant gas in the lower atmosphere.  It occupies 21% (by volume) of the atmospheric air.  The symbol of oxygen is O, and its molecular formula is O2.  We take oxygen gas during .....

You know, hydrogen is the lightest gas.  In fact, it is the lightest among all the elememts.  It is the first element (by position) in the periodic table.  Hydrogen is one of the component of water.  Hydrogen and oxygen are .....

Nitrogen is the most aboundant gas in the lower atmosphere.  It occupies 78% (by volume) of the atmospheric air.  The symbol of nitrogen is N, and its molecular formula is .....

Regular consumption of pure ghee enhances physical and mental strength, and keeps the body healthy. It also helps in taking out the impurities from the body. It enhances eyesight, keeps muscles and tendons healthy. Ghee also helps in stimulating .....

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Vegetable oil is a viscous liquid, and contains unsaturated fatty acids, and upon hydrogenation it is converted into saturated fatty acids to form ghee which is semi solid in nature. Ghee is manufactured from vegetable or seeds oil by a process .....

Table sugar is the common name for a sugar known as sucrose.  

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Chook-Amilo is the concentrated form of sour citrus juice. It is generally prepared in hilly regions due to the availability of citrus fruits known as Jyamir, Kagati, or Nibuwa.  Ripe sour citrus fruits are collected and juice is extracted .....

You probably know turmeric as the main spice in curry.  Turmeric is also used as an enema for people with inflammatory bowel disease. It is commonly used in Asian food. In food and manufacturing, the .....

Chemical name of Baking soda is sodium bicarbonate, NaHCO3. Baking powder is a dry mix of baking soda and sodium hydrogen tartrate, NaH(C4H4O4), It is also  called sodium bitartrate. Baking powder is widely used in bakeries. If you clothes .....

Too much ultraviolet (UV) radiation from the sun or sunbeds is the main cause of skin cancer. 

Too much UV radiation from the sun or sunbeds can damage the genetic material (the DNA) in your skin cells. If enough DNA damage builds up over .....

As we know , sun radiates energy in a wide range of wavelengths, most of which are invisible to human eyes. Ultraviolet (UV) radiation that reaches the Earth's surface is in wavelengths between 290 and 400 .....

You may have learnt about the earth's atmosphere. There are different layers of atmosphere. In the stratosphere layer of earth's atmosphere, there is a region that consist of most ozone. i.e. O3  (a triatomic very reactive form of .....