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The principle of lever is as follows: When the lever is in balanced condition (i.e. ideal lever), Input work = output work  i.e. Effort ⨯ effort arm = Load ⨯ load .....

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Skilled manpower is essential to carry out several development activities. To carry out several development works may be difficult in the absence of skilled manpower. They also play a vital role in the systematic utilization of the natural .....

- Lack of training, seminars, workshops etc. regarding the innovation of the manpower. - Focus should be given to instill modern technologies. - The government should focus on providing quality .....

We know that skilled human resource is the asset of the nation. The nation should focus on producing the skilled human resource. The skilled human resource contributes a lot in the field they are related to. Thus, the following things should be .....

The skilled human resource such as doctors, pilots, teachers etc. play a great role for nation-building. They support the nation from the street to the .....

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For this question,

We have the formula, g' = g/(1+h/R)^2

Here g' = acceleration due to gravity at the height

g = 9.8m/s^2

R = radius of earth

h = height

g/g' = .....

Sustainable development is an approach of development by the current generation. In such practice, they try to achieve their goals without destroying the future generations ability to achieve their goals in their own way. Some of the major .....

Sustainable development is an approach to development. This development approach focuses on meeting the needs of the present without compromising the ability of future generations to meet their own needs.  The features of sustainable .....

Look at the picture above. You see that some people are crossing the roads from the place marked with white stripes. And while crossing the roads, the vehicles are stopped. Zebra crossing is a place on the road that is marked with black and .....

Please check your question .....

Weight of an object is its mass(m) times the gravitational acceleration(g)

W=mg

When you lift an object up the mass doesn't change but the gravitational acceleration does change. Weight of an object depends on its mass .....

The differences between gravity and acceleration due to gravity are:-   Gravity Acceleration due to gravity 1. It is a force with which earth attracts the body towards its centre. 1. It is accleration of a body .....

It is difficult to lift large stone on the surface of the earth than the small ones. This is because, large stone has large mass than the small ones. Force of attraction between earth and the large body is greater than the small body, as F is .....

The weight of the body will become zero during free fall because during free fall the body falls with acceleration equal to accleration due to gravity neglecting air resistance. Hence, the reaction force becomes zero i.e. the force that we .....

The weight of body is less at moon than its weight on earth. This is becuase, acclearation due to gravity of moon is lesser than that of the earth. And we know, accleration due to gravity directly depends upon mass of the heavenly body and .....

When a coin and feather are dropped from certain height the coin reaches the ground earlier. This is because, feather has more surface area than the coin. And due to presence of air offers more air resistance to the feather than the .....

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Let, CP = Rs. x Now, by the question, MP = CP + 20% of CP          = x + 0.2 ⨉ x         = 1.2x SP = MP - D% of MP        = 1.2x - 10% ⨉ 1.2x       .....

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Here, Let CP of one pen be y. First case:  Profit = 25% CP of 5 pen = 5y. SP1 = CP + 25% oc CP        = 5y + 25 / 100 ⨉ 5y        = 25y/4. Second case:  Loss = 50/3% SP2 = CP - 50/3% .....

We have, no(P) = 45, no(Q) = 65, n(P ∩ Q) = 25 n(P ∪ Q) = no(P)+ no(Q) + n(P ∩ Q)                 = 45 + 65 + 25                  = .....

a) Venn-diagram b) No.of students who drank coffee but neither tea nor milk = 15. c) Milk only = 41. d) Tea only = 31. From the Venn-diagram we get     n(U) = 183 but in question it is 180 written. So, something is wrong in .....

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Given, U = { 1,2,3,4,5,6,7,8,9,10 } A = { 1,3,5,7 } B = { 2,3,4,8 } Then, A∪B = { 1,3,5,7 } ∪ { 2,3,4,8 } = { 1,2,3,4,5,7,8 } Again, ( A∪B )' = U - ( A∪B ) = { 1,2,3,4,5,6,7,8,9,10 } - { .....

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Distance between (3, 4) and (5, 4) = 3-52+4-42                                                       .....

Here,  P(x) = 2x5 - 3x3 + 5x Now, the order of the first term (2x5) = 5 The order of the second term (3x3) = 3 The order of the third term (5x) = 1 The order of the P(x) = The highest order of the term = .....