Students and Teachers Forum
Animals are living yhings. Animals need food and water to live. Animals feed themselves by eating plants or other animals. Animals can also sense what goes on around them. Their bodies allow them to move in reaction to their surroundings. They .....
Development may be defined as an effort made by humans to improve their living standards and develop a better future. Human resources, financial resources and natural resources are needed for any kind of developmental activities. Nepal has .....
Artificial intelligence (AI), the ability of a digital computer or computer-controlled robot to perform tasks commonly associated with intelligent beings. The term is frequently applied to the project of developing systems endowed with the .....
6x * 2 - 2y * 2 + 4x - 3y = 12x - 4y + 4x - 3y = 12x + 4x - 4y - 3y = 16x - .....
One dyne equals 0.00001 Newton = 10-5 .....
2x * 2 + 3x + 4x + 6 = 4x + 3x + 4x + 6 = 11x + .....
Solution : Marked price MP = Rs.4800 Discount percent d% = 10% Discount amount d = d% of MP = 10% of 4800 = 10/100 * 4800 = Rs.480 Selling Price SP = MP - d = 4800 - 480 = Rs.4320 VAT % = 15% VAT amount = VAT% of SP = 15/100 x 4320 = .....
Solution : 2x * 3x + 4x + 6 = 2 ( 3x2 + 2x + .....
x2 - 5x - 2x + 10 = x2 - 5x - 2x + 10 = x ( x - 5) - 2 ( x - 5) = (x-5) ( x - .....
The solar cycle is the cycle that the Sun’s magnetic field goes through approximately every 11 years.
Our Sun is a huge ball of electrically-charged hot gas. This charged .....
When volcanoes erupt, they emit a mixture of gases and particles into the air. Some of them, such as ash and sulphur dioxide, have a cooling effect, because they (or the substances they cause) reflect sunlight away from the earth. Others, such as .....
Solution : 5√32 x 23 x √81 = 5 x 4√2 x 23 x 9 = 20 x 72√2 = .....
Acceleration is defined as the rate of change of velocity per unit time.
If velocity does not change with respect to time, then rate of change of velocity .....
Potato is a stem vegetable
We have all been affected by the current COVID19 pandemic. However, the impact of the pandemic and its consequences are felt differently depending on our status as individuals and as members of society. While some are trying to .....
Brain drain my be defined as migration of skilled/semi-skilled persons out of the nation to some other nation due to lack of proper job opportunity. Some of the roles a school may play in controlling brain drain are: provide the people with .....
A real machine is one which is never 100% efficient. In real machine, output work is always less than input .....
The first verifiable claim for a practically used bicycle belongs to German Baron Karl von Drais, a civil servant to the Grand Duke of Baden in Germany. Drais invented his Laufmaschine (German for .....
Solution : SP = Rs.2505 Let CP be x Profit P = 1/4 of x = x/4 Then, P = SP - CP or, x/4 = 2505 - x or, x/4 + x = 2505 or, 5x/4 = 2505 or, x = 2004 Thus, the cost price of the article is Rs. .....
.....
We know that for any kind of developmental activities human, natural and financial resources are needed. Development is possible only when there is effective utilisation and combination of these resources. The financial resources provides the .....
क) देवकुमारी थापाको जन्मस्थान – खरसाङ ख) पहिलो नेपाली बाल .....
Living things are organisms that display the key characteristics of life. These characteristics include the ability to grow, reproduce, take in and use energy, excrete waste, respond to the environment, and possess an organized structure more .....
Inertia is proportional to mass. It is a measure of the resistance to changes in velocity. Inertia is a property of mass and cannot .....
Inertia of Rest can be defined as the inability of an object or body to change its state of rest by itself. Example : when a car is suddenly started, the passengers in it fall backward. Ever wondered why that happens? Well, the lower part, which is .....
Inertia is the ability of a body to oppose a change in its state. It is measured by the mass of the body. Among cricket ball and rubber ball, cricket ball has more mass than rubber ball. Hence cricket ball has more inertia than rubber .....
Objects tend to "keep on doing what they are doing." That means the objects have natural tendency To resist changes in their state of motion or rest. This tendency to resist changes in their state of motion or rest is called .....
Fundamental units : kg, kelvin, mole Derived unit : m3 , Newton , .....
Sir Isaac Newton was an English mathematician and mathematician and physicist who lived from 1642-1727. The legend is that Newton discovered Gravity when he saw a falling apple while thinking about the forces of nature. Whatever really happened, .....
x(2x+3)+4(2x+3) =2x2 +3x+8x+12 =2x2 .....
9ax3 + 15ax2 = 3ax2 (3x + .....
9a3 + 15ax2 = 3a ( 3a2 + .....
High surface area in comparison to their volume. Volume holds in heat, while surface radiates it. So the parts of you that are thick and .....
हजुर । गुरुलाई पुकार्नुभएकामा धन्यवाद .....
In Nepal low to medium grade coal seam occurrences/ deposits are known in four stratigraphic .....
Find the H.C.F. and L.C.M. of the expressions a2 – 12a + 35 and a2 – 8a + 7 by factorization. Solution: First expression = a2 – 12a + .....
In the context of Nepal any individual above 60 years of age are regarded as senior citizen. So, the younger generation is entrusted with certain responsibilities towards their elders. Some of our responsibilities towards the senior citizens .....
Solution : SI unit of force is Newton We know, Force (F) = mass (m) x acceleration (a) Their SI units are, or, N = kg x m/s2 or, N = kg m s-2 Thus, the fundamental units involved are kg, m and s. so, unit of force is a derived .....
Those quantities which can be measured are called physical quantities. Examples, mass, temperature, length, .....
Lay the leaves to be measured on a 1-cm grid and trace their outlines. Count the number of square centimeters. Estimate the area of the partial squares. (Here's a .....
Coronavirus disease (COVID-19) is an infectious disease caused by a newly discovered coronavirus.
Most people infected with the COVID-19 virus will experience mild to moderate respiratory illness and recover without requiring special .....
Characteristics of Living things Living things are made up of a cell or cells. They obtain and use energy to survive. A unique ability to reproduce, ability to grow, ability to metabolize, ability to respond to stimuli, ability to adapt to .....