Students and Teachers Forum
To remove air bubbles from the syringe:
Keep the syringe tip in the medicine. Tap the syringe with your finger to move air bubbles to the top. Then push gently on the plunger to push the air bubbles back into the vial. If you have a lot .....Here, SP= Rs.23 Profit % =15% CP = ?: We know, SP = CP + P% of CP or, 23 = CP + 15/100 x CP or, 23 = 115CP/100 or, CP =2300/115 = 20 Thus, CP is Rs.20. ii) Again, .....
The celestial bodies which revolve around the sun in the space between the orbit of Mars and Jupiter are called asteroids. Ceres is the largest asteroid with diameter of about 800 km. Juno, Vesta, Pallas, Eros, etc. are the asteroids having .....
The difference between earthquake and volcano is shown in the table below: Earthquake Volcano Earthquake is the shaking of the surface of the Earth. Volcanoes are ruptures in a planet’s crust that form because of .....
Before starting the problem, you should know the transformation and other formulae.
cos C + cos D = 2 cos(C+D)/2.cos(C-D) /2.
cos(A-B) + .....
Here, A+B+C = 180o or, A+C = 180 - B or, Sin(A+C)/2 = cosB/2 and cos(A+C)/2 = sinB/2 LHS = sinA+sinB +sinC = sinA + sinC - sinB = 2sin(A+C)/2 cos(A-C)/2 - sinB [ Since, SinC + .....
Let a be the sides of the equilateral triangle. Then, Perimeter = 3a or, 3a = 24√3 cm or, a = 8√3 cm. We know, Area of .....
The brain is the control center of the body.
The largest part of the brain, called the cerebral cortex, performs voluntary actions that control, like speaking or picking up an object. The back part of the brain, called the brain stem, .....
The United Nations (UN) is an intergovernmental organization that was tasked to maintain international peace and security, develop friendly relations among nations. It aims to achieve international co-operation and be a centre for harmonizing the .....
1. I was washing my hands when the telephone rang. 2. She was sitting at the table when the children came home. 3. When his friends arrived, he was watching Television. 4. Mira was sewing while Janak was mending. 5. My .....
All of your questions have already been answered. Please go through the app and browse your question for the .....
The main function of left ventricle is to receive oxygenated blood from the left auricle and pumps it into different parts of the body. The main function of the right ventricle is to receive deoxygenated blood from the right auricle and pumps it .....
These gaps in the bridges are known as expansion joints. Expansion joints are basically gaps in the bridge that allow the bridge to expand and contract. Without these gaps, the bridge may fall apart.
Bridges are typically made of .....
The United Nations is an international organization established on 24th Oct. 1945. It was established with the view to maintain world peace and security. So, it is committed to maintaining international peace and security. The secretariat is .....
United Nations Organization is an intergovernmental organization established to maintain peace in the world. The United Nations officially came into existence on 24 October 1945. After joining the UN on 14 December 1955, Nepal has reposed the .....
In the troposphere, the air nearest the earth's surface is the warmest because the earth reflects heat absorbed from the solar radiation into the layer. So, the temperature of troposphere decreases with increase in the height due to the .....
Electronic configuration of iron (Fe): K L M N 2 8 14 2 Position of iron in modern periodic table: Iron lies group VIII and period .....
Longitude is the angular distance to the east and west of the Prime Meridian. In each of the eastern and western hemisphere, there are 180 lines of longitude. The longitudes of the eastern hemisphere are called eastern longitude and the .....
आवादः खेती गरिएको पर्तीः बाँझो वा खेती नगरिएको जग्गा आवाद र पर्ती विपरीतार्थक शब्द हुन् .....
Let two digits number be 10x + y. From the first case, 10x + y = 4(x + y) or, 10x + y = 4x + 4y or, 6x = 3y or, y = 2x......................(i) From the .....
Here, 15 sin2θ + 2cos2θ = 7 or, 15 sin2θ + 2(1 - sin2θ) = 7 [ Since, cos2 .....
Definitely, it is true to say that only the formulation of law does not ensure the eradication of social problems. The important thing is that the formulated laws should be implemented effectively. The government in collaboration with its .....
Dear student, could you please check your question? I think the question is quite confusing. Look at the book again and make it correct if you are asking this question from your book? If you are asking from any other source, correct it looking at .....
Here, 1x - 1 - 22x + 1 +1x + 1 - 22x - 1 =1x - 1 +1x + 1 - 2 { 12x + 1 + 12x - 1 } =x+1 + x - 1(x - 1)(x + 1) -2 {2x - 1 + 2x + 1(2x - 1)(2x+1) } =2xx2 - 1 - 8x4x2 - 1 .....
Answer: Atom has equal number of protons and equal number of electrons. Proton is positively charged and electron is negatively charged. So, due to the equal number of positive and negative charges with in the atom, atom is chargeless. Atom .....
Given, Circumference of the circular ground = 264 m Using formula, Circumference of the circular ground = 264 2πr = 264 2∗( 22 / 7 ) r = 264 r = 264 ∗ ( 7 / 44 ) r = 42 m r = 42 m Wide of path = .....
Here, Area of four walls = 2h(l + b) = 2 x 6m(12m + 8m) = 240m2. Again, Area of 4 walls = area of paper or, 240 = L x .....
Answer: The thickness of the ozone layer is decreased due to the reaction of chemicals like chlorofluorocarbon (CFCs), methyl chloroform, carbon tetrachloride with ozone. Explanation: The depletion of ozone layer is the formation of a hole in .....
Let the sum be y. Than, according to question, 8% of y = Rs.12 or, 8/100 x y = Rs.12 or, y = Rs.12 x 100/8 = Rs.150. .....
UNICEF is one of the specialized agencies of UNO. It was established on 11th Dec. 1946 with the view to help and protect children and their rights. The functions of UNICEF are listed below: - It protects the right of children and young people and .....
Here, Area of ∆ADB = ∆DCB = 10cm2 [ Since, Diagonal BD bisects the//gm ABCD.] .....
Here, Perimeter of triangle = sum of all sides = AB + BC + CA .....
To be undefined, the denominator must be equal to zero which makes the fraction undefined. 5 / ( 4x - 8 ) Then, Denominator = 4x - 8 0 = 4x - 8 4x = 8 x = 8 / 4 x = 2 Hence, for x = 2, the fraction is .....
Here, Rate R = 10% Time = T = 2 yrs. CI ( annualy) + CI ( semi-1nnually) = Rs.17020.25 or, P[ ( 1 + R/100) .....
World Health Organization(WHO) is one of the important specialized agencies of the UNO. It was established on 7th April 1947. It is responsible for directing and coordinating public health. WHO has come to play a vital role as an actor in .....
The following things may happen in the future: - Forests are completely deforested. - Rivers, lakes, ponds, etc. will dry up. - The snow-capped mountains will be bared. - There will be less production in the agricultural sector. - Human life .....
We have given, x + 1/x = 4 Squaring both sides, ( x + 1/x)2 = 42 Now using formula, ( a + b) .....
I would suggest the following things to the people aspiring to avoid tax: - Paying tax is every citizen's duty so you should pay the tax for the betterment of the nation. - Avoiding tax is illegal so you get the punishment as per the law if .....
Here, Let first price of shop be y. Then Price after 2% discount = y - 2% of y = y - 2y/100 = 98y/100 = 0.98y Price after 3% discount = 0.98y - 3% .....
Immature Democracy in Nepal
Drinking water is a basic need as well as a very important infrastructure of development. A place without drinking water supply cannot be inhabited. In the past, people choose river banks and developed civilizations. A cause behind this was a .....
भाइहरुद्वारा सरासर घर गइयोस् .....
Electricity is one of the most important sources of energy. It has become an inseparable part of our life. In the absence of electricity, industrial development is not possible. Electricity is considered one as one of the basic .....
कामकुरा एकातिर कुम्लो बोकी ठिमीतिरः कामकुरा एकातिर कुम्लो बोकी ठिमीतिर भने झैँ परीक्षा आएको .....
Here, Slope of the line formed between origin ( 0,0 ) and ( 4,5 ), m = ( 5 - 0 ) / ( 4 - 0 ) = 5 / 4 Then, the equation of the line passing through ( 4,5 ) be, y - y1 = m( x - x1 ) y - 5 = 5 ( x - 4 ) /4 4 ( y - 5 ) = 5 ( x - 4 ) 4y - 20 .....
As shown in the figure AC is tangent to the circle at M. So, AM = MC & AB = AC
Angle formed by tangent AC & chord PM = angle formed by the chord in the alternate segment .....
Answer:
The valency of carbonate is two because it can combine with two hydrogen atoms.
Explanation:The structure of carbonate is
Each O atom has a negative charge, so it can combine with .....
Inter government panel of climate change was established in 2007 AD. It is a group of scientists of different countries who research, analyse and suggest the measures of mitigtion and adaptation of climate change. It's objective is to focus on .....