if the length of a rectangle is 20m and the breadth 2cm, what is an area of the rectangle in SI unit
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- The length and width of a rectangular room are measured to be 3.885 ± 0.0065 m and 3.2 ± 0.0045 m. In this problem you can approximate the error on a product or quotient of quantities by the sum of the percent error on each quantity.Calculate the uncertainty in this measurement in square meters.The depth of the ocean is sometimes measured in fathoms (1 fathom = 6 feet). Distance on the surface of the ocean is sometimes measured in nautical miles (1 nautical mile = 6076 feet). The water beneath a surface rectangle 1.20 nautical miles by 3.70 nautical miles has a depth of 18.0 fathoms. Find the volume of water (in cubic meters) beneath this rectangle. Number i UnitsA rectangular box for a new product is designed in such a way that the three dimensions always have a particular relationship defined by the variable x. The volume of the box can be written as (6x^3)+(31x^2)+(53x)+30, and the height is always x+2. What are the width and length of the box?
- In the calculation of the perimeter of a square measuring:5.0 cm ± .05 cm by 5.0 cm ± .05 cm,What is the ± error on the calculation of the perimeter of the square?A sphere of radius r has surface area A = 4πr2 and volume V = 4/3πr3. The radius of sphere 2 is triple the radius of sphere 1. What is the ratio of the areas, A2/A1?In the calculation of the area of the same square measuring:5.0 cm ± .05 cm by 5.0 cm +.05 cm,What is the + error on the calculation of the area of the square?
- A hedge has been trimmed to look like a cone. The circumference of the base of the hedge is 2m. The angle between the base of the hedge and the point at the top is 75°. What is the height of the hedge?The base of a pyramid covers an area of 12.8 acres (1 acre = 43,560 ft²) and has a height of 471 ft. If the volume of a pyramid is given by the expression V = bh/3, where b is the area of the base and h is the height, find the volume of this pyramid in cubic meters. m³ ⒸSylvain Grandadam/Photo Researchers, Inc.The radius of an atom of gold (Au) is about 1.35 Å. How many gold atoms would have to be lined up to span 4.0 mm? Express your answer using two significant figures.
- A) A pyramid has a height of 488 ft and its base covers an area of 10.0 acres. The volume of a pyramid is given by the expression: V=1/3Bh, where B is the area of the base and h is the height. Find the volume of the pyramid in cubic meters. (1 acre = 43,560ft^2). B) What If? If the height of the pyramid were increased to 525 ft and the height to base area ratio of the pyramid were kept constant, by what percentage would the volume of the pyramid increase?If the walls in a room are 80.2 m2 in area and a gallon of paint covers 15.0 square yards, how many gallons of paint are needed to paint the room? The following equalities should prove useful: 1 inch = 2.54 cm, 1 foot2 = 144 inch2, 3 ft = 1 yard.A rectangle has a length of (5.1 ± 0.2) m and a width of (2.3 ± 0.1) m. Calculate: (a) the area and (b) the perimeter of the rectangle, Give the uncertainty in each value.