What is the cheapest roof style?

What is the cheapest roof style? For most homeowners, the best bet is choosing an affordable, yet durable roofing system. Clay. Clay roofing systems are very captivating, cheap roofing materials. Asphalt. Asphalt is the cheapest of all roofing materials in the market. Metal. A range of affordable metal roofing systems are now available in the […]

What are contour lines for Class 7?

What are contour lines for Class 7? (i) Contour lines are isolines of height. (ii) These are drawn by joining the places of equal altitude. (iii) These help in identification of land forms and their altitude from sea level. (iv) These lines also help us to understand the nature and direction of the slope. What […]

What is a pulley system in physics?

What is a pulley system in physics? Pulleys are mechanisms compost by wheel and rope used to lift heavy objects onto tall heights. They change the direction of an applied force and they can even reduce the force needed to lift a weight. Pulleys systems are common used in constructions. What is the tension formula? […]

Is loudness related to frequency?

Is loudness related to frequency? Now when talking about sound waves the sound level of a noise (loudness), it is proportional to the intensity of the source. The loudness of a sound does not seem to depend on frequency. But according to the equation above, intensity DOES depend on frequency. How loud is 1000hz? Using […]

Is a 1.4 Litre engine good for motorway?

Is a 1.4 Litre engine good for motorway? Frequent motorway trips If so, you’ll need an engine sized from 1.4 litres to 2.0 litres, because you’ll be on the motorway network a great deal. Bigger engines can better handle the rigours of the motorway – such as overtaking. How many cc is a 1.4 Litre […]

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