Velocity ratio (V.R)  is the  ratio of the distance moved by the effort to the distance moved by the load. i,e V.R=distance moved by effortdistance moved by load  

You know that sustainable development is the development that meets the needs of the present. While meeting the needs of the present it does not compromise the ability of future generations to meet their own needs. Sustainable development aims to .....

Nepalese have diverse beliefs and ethnic backgrounds. Tamangs are the indigenous people of Nepal living mostly in the Hilly and the Himalayan regions. They are mostly of Buddhism religious beliefs. Despite these facts, all unite in the .....

Let U denotes total no.of students P be the students who like Pokhara & C be the Chirawan. Then, n(U) = 350 n(P)  = 200 n(C) = 220 n(P∩C) = 120 We know,    n(PUC) = n(P) + n(C) - n(P∩C)         .....

Here, RHS = secA.secB / sec(A + B)          = cos(A + B) / [ cosA.cosB]        [ since, secX / 1/cosX.]          =  [ cosA.cosB - sinA.sinB] / [ cosA.cosB]     .....

LHS = [ 1 + tan2A tanA ] / sec2A          = cos2A [ 1 + sin2A/cos2A .tanA]      [ since,secX = 1/cosX.]          = cos2A + sin2A .tanA          = .....

RHS =   sin(A+B) sin(A-B) / [ cos2A cos2B]   Using formula of sin(A+B) & sin(A - B), we get          =  [ sinA.cosB + cosA.sinB] [ sinA.cosB + cosA.sinB]/  [ cos2A cos2B]   .....

LHS = cos θ /  sec 2θ - sin θ / cosec 2θ         = cosθ . cos2θ - sinθ. sin2θ         = cos( θ + 2θ)       .....

According to Archimedes principle, a body when immersed in a fluid shows an apparent loss of weight which is equal to the weight of the fluid displaced by the body.  So when a bucket is taken under water it  is acted upon by .....

We know,  Pressure = h d g  where h = height, d = density and g = gravity  From the above relation, we have less pressure at the bottom of a drum when brought to kathmandu from biratnagar because gravity is more in terai .....

Archimedes Principle states that, When a body is wholly or partially immersed in a fluid ,it experience an upthrust which is equal to the weight of the fluid displaced by it. i.e Upthrust = Weight of liquid displaced. Archemides principle  .....

Upthrust is the upward force exerted by fluids on the surface of an object immersed in fluids. Measurement of upthrust:  Archimedes principle says that when an object is immersed in a liquid the apparent loss of weight of an object is .....

Given: Mass of Earth =Me Mass of Jupiter =Mj Radius of Earth = Re Radius of Jupiter =Rj We .....

Here, LHS = tanA + cotA         = SinA/cosA + cosA/sinA Taking LCM.         = [ sin2A + cos2A] / [sinAcosA]         = 1 / [ sinAcosA]        = 2 / [ .....

Given, Distance between two bodies ( r ) = 2.8 x 108 km =2.8 x 1011 m Mass of a body ( M1 ) = 7 x 1022 kg Mass of second body ( M2 ) = 24 x 1028 kg By using formula, F = ( GM1M2 ) / r2       .....

Given,  Mass of moon ( M ) = 7.4 x 1022 kg Radius of the moon ( r ) = 1740 km = 1740 x 1000 = 1740000 m  Now , Acceleration due to gravity = GM / r2                      .....

There are nearly 300 bones at the birth of a baby and it decreases to 206 bones by adulthood. So, there are 206 bones in an .....

Here, the total cost of the 5 tickets = Rs. 550 This question can only be solved by hit-trial method. Since, 5 tickets are bought, the possible purchase of the ticket in each categories is given .....

Nouns are words that name place, people, things or animals. In simple words, nouns are naming words. Nouns are of five types: Common Nouns: Words that name general items. They start with small letters. Eg. horse, cow man, woman, sheep...etc. Proper .....

First, you have to remember this table. Now, back to your question = 45 = 40 + 5 = (50 - 10 ) + 5 = ( L - X ) + V = XL + V = .....

The differences between bio fuel and fossil fuel are :

Bio Fuel

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Coal  Oil Coal is a rock that is high in organic carbon, mainly from plant leaf material. Oil is a liquid hydrocarbon, that is usually formed when an rock high in organic carbon is subjected to heat and .....

The difference between granular and non-granular white blood cells are as follows :  

Granular .....

First of all let us understand what pressure is and on which factor it depends upon.  Pressure is defined as the force acting perpendicularly per unit area which is given by the relation, P = F / A Here pressure has an inverse relation with .....

When two straight lines cross, they form four angles. In the diagram below, these angles are labelled α, β, θ and φ and referred to as alpha, beta, theta and phi. The angles opposite each other are equal. They are called .....

Given, Mass of myself =  50 kg Mass of my friend  = 60 kg Distance= 1 m Gravitational force=? Now using the formula  F= ( G m1m2 ) / d2 Where G= 6.67*10-11Nm2/kg2 F = 6.67*10-11 x 50 x 60 / 12    = 2.001 x .....

Given, Mass of the first object=  200 kg Mass of the second object = 200 kg Distance= 2 m Gravitational force=? Now using the formula  F= ( G m1m2 ) / d2 Where G= 6.67*10-11Nm2/kg2 F = 6.67*10-11 x 200 x 200 / 22   .....

Group one elements are strong reducing agents because they have one valence electron in their outermost shell. Hence they are loosely bound by the nucleus causing them to increase in their atomic size. As a result, their ionisation potential .....

Halogens are the elements of seventh group in the periodic table. They contain seven electrons in the outer most orbital and they are short of one electron to attain the octet configuration. This makes them very reactive as they are keen to .....

Chlorine has 7 electrons in its outer shell. It only needs one electron to fill up that shell. It can attract that electron better than all the other elements in period 3, because it has more protons. It is very reactive and hence a very active .....

Given, Load (L) = 600 N Load distance (L.d.) = 0.6 m Effort distance (E.d.) = 2.6 m Effort (E) = ? We know, E x E.d. = L x L.d. or, E x 2.6 = 600 x 0.6   On solving this, we get, E = 138.46 N Thus, effort applied should be 100 .....

Measurement is the process of comparison of unknown physical quantity with the known standard quantity of the same kind or .....

The total population of Nepal according to national census 2068 is 2, 64, 94, 504. The population growth rate was 1.35%. This shows that the population of Nepal is increasing day by day. But, the health facilities have not been increased in a .....

Me: Mum, may I ask you something? Mum: Of course, say it. What do you want to task? Me: Today is my best friend Ramesh's birthday. Could you allow me to stay with him tonight? We have grand birthday party celebration with other .....

The weight is more in terai region than in himalayan region because acceleration due to gravity is greater in terai region than in himalayan region as we know W = mg. We have relation between acceleration due to gravity and height from the .....

The relationship between gravitational force of attraction and the distance between two bodies are, F = Gm1m2/R2 where, 'F' is the gravitational force of attraction. 'G' is the universal gravitational constant. 'R' is the .....

The relationship between gravitational field intensity and radius of the heavenly body is, I = GM/R2 where, 'I' is the gravitational field intensity. 'G' is the universal gravitational constant. 'R' is the radius of the .....

- We should sleep well. - We should do some exercises that keep us healthy. - We should visit the doctors to check our .....

The relationship between acceleration due to gravity and radius of the heavenly body is, g = GM/R2 where, 'g' is the acceleration due to gravity. 'G' is the universal gravitation constant. 'M' is the mass of the heavenly .....

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When was Kamal .....

Write true or false. a. A person with courage, patience, discipline and perseverance can be a great person. (true) b. Every obstacle presents an opportunity to improve our condition. (true) c. Anuradha Koirala was not recognized for her .....

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The king placed a boulder on the road to see if anyone would remove the .....

The king placed the boulder on the road to see if anyone would remove the .....

Nepal is the second largest country in water resource in the world. Nepal has a huge amount of potentiality of hydro-electricity. But, Nepal has to face the problem of load-shedding. Due to this, the economy of the country has badly .....

प्रश्नले भन्न खोजेको कुरा स्पष्ट भएन त साथी .....

१. (क) देशमा लामो समयसम्म अशान्ति छाएको थियो, यस्तो अवस्थालाई नै समयको लामो झरी भनिएको हो । (ख) .....

Given, P ( x ) = x3 - 2ax2 - a2x + 2a3                        = x2 ( x - 2a ) -  a2 ( x - 2a )                   .....