The advantage of aneroid barometer over mercury barometer are, Anerid barometer does not need mercury column, so it is compact. It is easier to handle It is easier to read, as the measurements are calibrate minutely. It is highly sensitive and .....

Barometer is a instrument used to measure the atmospheric pressure and also used for forecasting of the .....

Atmospheric pressure reduces with altitude for two reasons - both related to gravity.

Water cover with cardboard does not flow out

We have, g = GM / R2 = 6.67 x 10-11 x 6 x 1024 / (6.4 x 106)2 = 9.8 m/s2 Again, g' = (R/(R+h))2 x g or, g' = (6.4 x 106 / (6.4 x 106 + 9.25 x 105))2 x 9.8 So, g' = 7.48 m/s2 Thus, the .....

We have, g = GM / R2               6.67 x 10-11 x 6 x 1024  or, g = -------------------------------                      (6.4 x 106)2 So, g = 9.8 .....

Reactivity is the tendency of a substance to undergo chemical reaction, either by itself or with other materials, and to release energy. It is the capacity of an atom, molecule or radical to undergo any chemical .....

Of course Sodium is more reactive than Carbon. Sodium has only one electron in its external shell where as carbon has four. This makes it easy for Sodium to loose one single electron during reaction than for Carbon with four .....

Given,      Universal gravitational constant (G) = 6.67 x 10-11 Nm2kg-2     Acceleration due to gravity (g) = 9.80 m/s2     Radius of the earth (R) = 6.38 x 106 m      Mass of the earth .....

We have, F = GMm/r2                6.67 x 10-11 x 6 x 1024 x 100  or, F = ----------------------------------------                       .....

According to Archimedes principle, for floating body, the weight of floating body is equal to weight of displaced water.  As ship floats in the ocean, the weight of ship is equal to the displaced water. When the load is added in the ship, the .....

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                                                                   Test .....

a. much b. money c. many d. villager  e. students f. cookies g. dish h. dresses i. bread j. furniture k. advice l. toys m. information n. magazines  o. a lot of p. student q. .....

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∛8⨉125 =  ∛23 ⨉ 53                 (Here,8= 23 and 125= 53)                 = ∛(2⨉ 5)3             .....

Let, x be the cube root. So, x3 = 0.125 or, x3 = 0.5 ⨯ 0.5 ⨯ 0.5 (splitting 0.125) or, x3 = (0.5)3 or, x = 0.5 (Since we have same .....

Let, the cube roots of 0.008 be x  Then, x3 = 0.008          or, x = 0.2 Hence, the cube roots of 0.008 is .....

1728 3=2×2×2×2×2×2×3×3×3 3             =  23×23×333              = 2×2×333   .....

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We wear clean clothes : - To protect ourselves from harmful germs and diseases. - To make us healthy and fit. - To look clean and .....

There are 146 tens in 1466. 1466= 1⨉1000+ 4⨉100+6⨉10+6 1000= 100 tens 400= 40 tens 60= 6 tens So, 100tens+40 tens+6tens= 146 .....

Newton's third law of motion stated " To every action there is equal and opposite reaction". It describes the direction and magnitude of the reaction force. F = - m*a '-' represent direction  'm*a' represent .....

Velocity: Velocity is defined as the ratio of distance covered to the time taken.Its unit is m/s. Velocity of an object is 5 m/s means, object covers 5 m in 1 second. Acceleration Acceleration is defined as the rate of change of velocity. Its .....

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Newton's First law of Motion: Inertia An object will not change its motion unless acted on by an unbalanced force. If it is at rest it will stay at rest If it is in motion , it will remain at the same velocity  Objects with a greater .....

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The ratio of effort distance to load distance is called velocity ratio. Mathematically,  Velocity ratio = Effort distance/load distance In case of a pulley, the velocity ratio is equal to the number of .....

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It is quadratic function.It's graph is as shown .....

हामीलार्इ थाहा छ कि, a = (v - u) / t = (0 - 12.5) / 6 = -2.08 m/s2 र, v2 = u2 + 2as or, 02 = 12.52 + 2 x (-2.08) x s or, - 156.25 = - 4.16 s or, s = 37.56 m त्यसैले, .....

प्रारम्भिक गति (u) = 0 m/s (स्थिर अवस्था ) अन्तिम गति (v) = 90km/hr     = 25 m/s समय (t)= 10s प्रवेस(a) =(v-u)/t   = .....

कारको पिण्ड (m) = 900 kg प्रारम्भिक गति (u) = 60 km/hr                              =16.67 m/s अन्तिम .....

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Uniform velocity means there is no change in magnitude and direction of the velocity.  Acceleration is defined as the rate of change of the velocity. If a boy is running along a straight road with uniform velocity, there is no change in .....

Given, mass of the car (m) = 1200 kg Initial velocity (u) = 108 km/hr                               = (108 ⨉ 1000) / (60 ⨉ 60) m/s         .....

पास्कल (Pa) = .....

W = .....

i) F = m×a    = kg×m/s2 (m = kg, a=m/s2)   .....

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We know, 1hour = (60 ⨉ 60) seconds So, 4 hours = (4 ⨉ 60 ⨉ 60) seconds                    = 14400 .....

We know,  1kg = 1000gm  or, 1gm = 1/1000kg So, 200gm = (1/1000 ⨉ 200)gm                     = .....

We have, 1 m = 100 cm                  1 m2 = 100 cm ⨉ 100 cm = 10000 cm2                 1  cm2 =  (1/10000) m2       .....

We know,  1gm= 1000mg or, 1mg= 1/1000gm So, 124mg = (1/1000⨉124)gm                   = .....

We have, 1 km = 1000m                  1 km2 = 1000 ⨉ 1000 m2                            = 1000000m2 So, 4 km2 = 4 ⨉ .....

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The constitution of Nepal 2072 has identified Nepal as a secular, federal democratic nation. After the election 2074 in Nepal, the nation has been practicing multi-level government. They are federal, state and the local level government. The .....