energy saving costs

The energy produced due to the 'fission of nuclei' of certain heavier elements (such uranium), or by the 'fusion of nuclei' of lighter elements (such as hydrogen), is called nuclear energy . Nuclear reactions generate very large and powerful amounts of energy. They ca..

Renewable sources of energy are produced continuously in nature and are non-depletable. Sources like water, sunlight, air, tidal energy, nuclear energy, geothermal power, are not exhaustible. A non-renewable source of energy gets depleted over a certain peri..

Tony wanted to buy a watch which costs $76 . He saves $6 on the first day. Each succeeding day he saves $1 more than the previous day. If he continues this pattern of savings, in how many days can he buy the watch? => 76 or 70 or 8 or 19..

In order to live and enable ourselves to do everyday work we need energy. The prosperity of a country depends upon the availability of energy. Huge amount of electrical energy is used to run the air conditioners, cold storage and other domestic appliances. A large shar..

>Change lifestyles to conserve energy.(e.g. more use of mass transport systems or more use of bicycles as opposed to individual cars, use of solar devices solar air conditioning solar cooking etc.) Energy saved is energy produce..

Kilowatt - hour is the commercial unit of electrical energy. We have seen that power is the rate of energy consumed or delivered. If 1 joule of energy is used per second, we say that energy is used at the rate of 1 watt. In other words, if energy is..

It is present everywhere. It is available in plenty. It does not cause any environmental pollution like the fossil fuels and nuclear power. Solar cells last a longer time and have low running costs. In the first half of the twentieth century solar energy was used in ..

Jim wants to buy a camera which costs $1363. It was put on sale with 30% discount. How much does Jim save if he buys the camera during the sale? => $408.9 or $358.9 or $308.9 or $508.9..

Charlie earned $10 from his job last week. He wants to buy some books costing $3 each and also save $1 for himself. Solve the equation, 1 + 3 y = 10, to find y , the number of books Charlie can buy. Use algebra tiles. => 2 or 3 or 5 or 7..

A travelling sales man can find the shortest routes to save time / fuel cost. The most economic and efficient manner of locating manufacturing plants and distribution centres may be used. Linear programming may be used for effective and efficient production management and manpo..