Students and Teachers Forum
The solubility of sodium chloride, NaCl is 36g/100g of H2O at 25 degrees C. Indicate whether the resulting solutions of sodium chloride in water are saturated, unsaturated, or .....
Yes, it is true that fish do not have .....
Here, To prove this, Take two triangles PBQ & APR. Show them congurrent by SAS axiom. Now, AR = BQ, corresponding sides of congurrent triangles PQB & .....
Adding equation [ I ] and equation [ II ], we get, OC + OE = OB + OA CE = .....
LHS sin²a - cos²a . cos2b = sin²a - (1 - sin²a) (1 - 2sin²b) = sin²a - 1 + 2sin²b + sin²a - 2sin²a . sin²b = 2sin²a + 2sin²b - 1 - 2sin²a . .....
Here, Breadth = b So, Length = l = b + 4m Perimeter = 56m or, 2( l + b) = 56 or, b + 4 + b = 28 or, b = 12m And, l = 12 + 4 = 16m Now, a) Area of 4 walls excluding doors and windows = 2h( l + b) - area of a door - area of 2 .....
प्रश्नले भन्न खोजेको कुरा बुझिएन त .....
To find the separate equation, we need to factorize it. x2 - xy - 2y2 - 2x + 4y = 0 or, x2 - 2xy + xy - 2y2 - 2x + 4y =0 or, x( x - 2y) + y( x - 2y) - 2( x - 2y) = 0 or, (x - 2y) ( x + y - 2) = .....
Fifty three thousand two hundred and fifty .....
x-2x3x4x = 100 (x ⨉ 4x) - (-2x ⨉ 3x ) = 100 4x2 - (- 6x2) = 100 4x2 + 6x2 = 100 10x2 = 100 x2 = 100\10 x
Substances | Sp. heat capacity |
A | 2100 J/kg℃ |
B | 910 J/kg℃ |
C | 138 J/kg℃ |
a. If A, B, C are taken in equal mass and heated in equal heat, which one of them gains maximum temperature and why?
b. If all of them are liquids, which one of them is suitable for cooling and heating purposes? Why?
c. If equal mass of A and B are taken at 80oC and left to cool, which will be cooled faster and why?
d. If all of them are liquid, which is suitable as a thermometric liquid? Why?
It takes more energy to raise the temperature of A by 1 ℃ than B and C as it has high specific heat capacity. So, the temperature of A increases slowly. If all the substances are cooled from high temperature, A remains hot for long .....
नेपालीमा यसरी ए प्लस ल्याउन सकिन्छ : (क) पहिलो कुरा अक्षर आकर्षक बनाउने अभ्यास गर्नुहोस् । (ख) .....
The womb (uterus) is a hollow, pear-shaped organ located in a woman's lower abdomen between the bladder and the rectum. The narrow, lower portion of the uterus is the cervix; the broader, upper part is the .....
Every player does best from his/her side. So it is not right to tag some single player as the best footballer. Some of the best players from Nepal are: Rohit Chand, Sagar Thapa, Bharat Khawas, Chetan Ghimire .....
Sandeep Lamichhane is a Nepalese cricketer who plays for the Nepal national team. He is a right-handed leg spin bowler who played for Delhi Daredevils in the Indian Premier League. He is the first Nepali cricketer who played in .....
Let AB ( = x m) be the height of building, BC be the breadth of river and D be the point 40 m away from the edge of the river. So, CD = 40 .....
Here, let AB be the heightof the chimney. Initially the observer is at D and the angle of the elevitation at the top of the chimney was 45⁰ .When he moves 15m towards chimney he reached at C and he angle of the elevitation at the top of the .....
You may have learned that pollination is the process where pollen is transferred to female reproductive parts of a flowering plant. When pollens are mature, they are transferred by the help of different natural processes. The natural .....
प्रश्न बुझ्न सकिएन, कृपया प्रस्ट प्रश्न राख्नुहोला .....
∡ABQ = ∡APQ --- (v) [ inscribed angles subtended on same arc of the circle.] ∡CRQ = ∡APQ [ from equation (iv) and (v) .....
Class interval | 10 - 20 | 20 - 30 | 30 - 40 | 40 - 50 | 50 - 60 |
Frequency | 4 | P | 6 | 3 | Q |
Class interval frequency (f) mid value (x) fx 10 - 20 4 15 60 20 - 30 P 25 25P 30 - 40 6 35 210 40 - 50 3 45 135 50 - .....
C.I | More than 50 | More than 60 | More than 70 | More than 80 | More than 90 |
F | 50 | 45 | 31 | 13 | 2 |
C. I f cf 50 -60 50 - 45 = 5 5 60 - 70 45 - 31 = 14 19 70 - 80 31 - 13 = 18 37 80 - 90 13 - 2 = .....
LHS 8 (cos6 θ/2 - sin6 θ/2) Let θ/2 = A. = 8 (cos6A - sin6A) = 8 {(cos2A)3 - (sin2A)3} -------- [ changing in the form of a3 - b3 ] = 8 [(cos2A - sin2A) .....
But, it does not mean that the people in Nepal are not equal in front of the law. Yes, they are but due to some problems, sometimes people may not be treated equally. The people in power paralyzes the provisions, due to which the law may not .....
प्रश्नले भनेको कुरा बुझिएन त .....
Here, ∠ABD + ∠BAD + ∠ADB = 180 [ Sum of angles of triangle] or, 70 + ∠BAD + 40 = 180 So, ∠BAD = 70 ∠CAD = ∠BAD / 2 [ Being AC bisect ∠BAD] .....
There are various social problems and evils prevailing in throughout the country. Dowry System, Ghumto Pratha, Deuki Pratha, Jhuma Pratha, Chhaupadi, etc are prevalent in our society. These problems have mainly affected the women. Similarly, our .....
We know that every machine are not perfect. There are many factors which effect the machine to be perfect i.e. friction and heat. When ever your machine do work they effect the efficiency of the machine. So it is impossible to get a perfect .....
Zn (s) + H2SO4 (aq) → ZnSO4 (aq)+ .....
भूत+इक= .....
Complete these dialogues with appropriate words or phrases. A: Could you please you open that window? It's very hot here. B: Yeah, sure. b)A: the Shresthas are here and we were supposed to go to the party if you'd like to come .....
For the following reasons it is important in the business: - It helps while formulating plans and strategies. - It helps you to come to the right decision. - It helps you know if the product is profitable for you. - It helps you safe land the .....
Here, a + 75 = 180 [ Angles in straight line ] a = 180 - 75 a = 105 Again, b = a = 105 [ Being corresponding angle ] Again, c = b = 105 [ Being vertical opposite angle .....
The Karnali Highway lies in the Karnali Region, north-west of Kathmandu. The highway is the link between the towns of Surkhet and Jumla, and goes on as a dirt road from Nagma to Talcha. It is 232 km long. It extends from Bangesimal of Surkhet to .....
Here, given series is AP, so, common difference ( d ) =7-3 = 4 First term ( a ) = 3 Here, last term( tn ) = 407 Then, using formula, tn = a + ( n - 1 )d 407 = 3 + ( n - 1 )4 404 = ( n - 1 )4 101 = n - 1 n = 101 + 1 n = 102 Hence .....