A falling object gains an acceleration due to the influence of gravity.  In absence of resistance, the acceleration due to gravity is same for all objects.  That is why, every object falls with the same acceleration if there is nothing .....

The cube of (8a + 7b)  = (8a + 7b)3 =(8a)3 + 3.(8a)2.7b + 3.8a.(7b)2 + (7b)3 =512a3 + 3.64a2.7b + 3.8a.49b2 + 343b3 =512a3 + 1344a2b + 1176ab2 + .....

We have,  LHS = cos2(45 - A) - sin2(45 - A)          = cos2(45 - A)                    [ cos2A - sin2A  = cos2A]          = .....

I believe that the death of Empathy and Cooperation is the birth of violence, discrimination and crimes. Definitely, lack of empathy and cooperation may lead to violence, discrimination, and crimes. Violence, discrimination and crimes .....

Due to the latitudinal extension or distance from the equator, the climate becomes different in different places. The places nearer to the equator or with lower latitude experiences hot climate. Whereas, the places farther from the equator or with .....

A simple sugar which is an important energy source in living organisms and is a component of many carbohydrates. It is a chemilcal compound of hydrogen and carbon or it is a hydrocarbon compound. Its chrmical formula is .....

The following things should be done for the equal distribution of the population in three geographical regions: - The development of infrastructure should be proportional to each region. - Establishment of industries should be focused on the .....

We know,  Accleration due to gravity on any planate or object = g = GM / R2,  Where M is mass & R is radius. Here, if moon is expanded to a volume equal to half of earth, radius will be increased. So, from the .....

Mumbai experiences moderate climate than Vanaras because Mumbai is situated on coast that's why cold sea breeze flow in Mumbai and cools the climate. On the hand, Vanaras is the interior of the main land and the cool winds become hot while .....

We know that civil society is a voluntary and independent group of people of different sectors formed. The purpose of the civil society is to achieving certain objective. It is a common platform to express the wants, assumptions, and .....

Carbon dioxide is an inert gas that does not promote a fire, it is actually one of the byproducts of fire. Carbon dioxide envelopes the area of the fire when released from the fire extinguisher, displacing the oxygen. Perhaps you have heard of the .....

स्याबास .....

Heat always transfers from the hot body to the colder body. When chilled coke and hot tea is kept together, the heat from the hot tea transfer to the chilled coke. So, due to the loss of the heat by the tea, it cools down and due to the gain of .....

We have studied that the Nepalese soldiers who took part in the world wars exhibited extraordinary bravery. And it is believed that their participation played a great role in the success of the Anti-Rana Movement in Nepal. The soldiers who had .....

A thermometric liquid is a liquid that can change its volume (increase or decrease) in accordance with surrounding temperature. In other words, thermometric liquids are used in thermometers to measure temperature. Mercury and alcohol are common .....

When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of .....

Light is radiant energy, an electromagnetic radiation that is visible to the human eye, and is responsible for the sense of sight. It is the most popular form of energy. There are many sources of light a natural and main source of light is the .....

Physical Properties of Ethers: An ether molecule has a net dipole moment due to the polarity of C-O bonds. The boiling point of ethers is comparable to the alkanes but much lower than that of alcohols of comparable molecular mass despite the .....

Some uses of Ether: - Used as an Anesthetic -  Production of diesel engine fuel -  Solvent for fats, waxes, oils, perfumes, alkaloids, and gums -  Production of pure .....

Magnesium is element 12 and belongs to Group 2 of the Periodic Table. An element in Group 2 has two valence electrons. Also, the electron configuration of Mg is 1s² 2s²2p⁶ 3s² or [Ne]3s². Since the .....

Please post diagram .....

We have, (sina + cosa)÷sina + (sina - cosa)÷sina = sina/sina + cosa/sina + sina/sina - cosa/sina = 1 + cota + 1 - cota = .....

We have,  LHS = 2sin2(45 - A)          = 1 - cos2(45 - A)        [ cos2A = 1 - 2sin2A]\          = 1 - cos(90 - 2A)          = 1 - sin2A .....

Geographically, Nepal has been divided into three different regions. They are Himalayan, Hilly and Terai regions. The difference between the Himalayan and Terai region of Nepal is presented in the tabular form below. Himalayan .....

We have,  cos140° + sin10°  + √3 cos70° = cos(90° + 50°) + sin10° + √3 cos70°          [sin(A + 90) = - cosA] = - sin50°  + sin10° + √3 .....

Let,  P(x, y) is equidistant from the points A(2, 3) and B(6, 1). Then,  PA = PB or, √[ (x - 2)2 + (y - 3)2] = √[ (x - 6)2 + (y - 1)2               [ Distance formula] or, .....

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Here,  ∡AOB = 90o               [ Line jopining the center of two intersecting circle is perpendicular to common chord.] So, PQ ⊥ CD              [ ∡AOB = .....

We have to suppose the point be P(x,y) Then PA= √​(x​2​​−x​1​​)​2​​+(y​2​​−y​1​​)​2​​​​​ or ; PA2 =(x  - a)2 + ( y - 0)2 Similarly find PB2  and AB2 Now use .....

Let, A and (A + 2πc/5) be the two acute angles of right-angled triangle. Then,  A + (A + 2πc/5) = 90° = πc/2 or, 2A + 2πc/5 = πc/2 Now, find A. Use, 1c = 200g/π to find angles in .....

Let, ABC be the trianlge. Then, ∠A = 2πc/9 ∠B = 50° = 50 ⨉ πc/180 = 5πc/18     [ 1°    = πc/180 ] Now, ∠A + ∠B + ∠C = 180°  = πc   .....

Place the value of x in another equation to satisfy the .....

Duties are responsibilities that are assigned to individuals. The existence of rights depends to some extent on the existence of duties. The present constitution of Nepal has made the provision of the civil duties in Article no. 48. According to .....

Here, Let A be the point of observation and BC = ED = height of plane from the ground = 6000m = 6km. ∡BAC = 45o & ∡EAD = 30o. In right angled triangle ACB,  Tan45o = BC / AC From here, find AC. In right angled triangle .....

The sunflower plant contains hormones called auxins. the auxins stimulate the growth of cells. This causes the stem to become bulkier in the shaded region, And the flower ends up bending in the opposite .....