Answer:
b = 56.67 m
Explanation:
It is given that,
Area of the triangular field is 255 m²
We need to find the base of the field if its height is 9 m.
The area of a triangle is given by :
So, the base of a triangle is 56.67 m.
Answer:
1. Cations are positively charged and have less electrons than protons.
2. Anions are negatively charged and have more electrons than protons.
3. Columns on the periodic table are known as groups.
4. The elements in the first group are called alkalis metals and have one valence electron.
Explanation:
It was Erwin Schrodinger.
Answer:
1. They are found in nearly limitless supply.
Renewable resources are those which are abundantly present in nature and can be replenished again after single use. For example water, air and sunlight.
2. increased
Over the past 100 years, the amount of fossil fuel consumption has increased because with the increase in the population cover all over the world, the requirement of fossil fuels is also increasing. Fossil fuels are required for the generation of thermal and electrical energy.
3. United States
The United States is the reservoir of coal. It is a chief exporter of the coal to India, Netherlands , Japan, South Korea and Brazil.
