ise 4.8: The area of a rectangular plate was found by measuring its length and its width. The length was found to be 8.27 + 0.05 cm. The width was found to be 5.12 + 0.02 cm. What is the area of the plate?
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- Problem 4: Significant Figures A block of gold has length 5.62 cm, width 6.35 cm, and height 2.78 cm. a. Calculate the base area and round up the answer to the appropriate number of significant figures. b. Now multiply the rounded result of part (a) by the height and again round, obtaining the volume. Let this be ?1. c. Now obtain volume 2, ?2, by first finding the width times the height, rounding up to appropriate significant figures, and multiply by the length. d. Explain why the answers don’t agree with the third significant figure.Now you will use the ruler to measure the dimensions of a block of pure aluminum metal. Make sure you report both the uncertainty and an estimated digit with your answers. V [ Select ] 1 21 1.5 cm +/- .1 cm cm 1.38 cm +/- .01 cm What is the best measurement of the length of this block? 1.35 cm +/- .01 cm 1.3 cm +/- .1 cm 1.40 cm +/- .05 cmThe 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.
- Part B Problems: Measurement and Uncertainty; Significant Figures; Units, Standards, and the SI System; Converting Units 3. In the Bible, Noah is instructed to build an ark 300 cubits long, 50.0 cubits wide, and 30.0 cubits high. Historical records indicate a cubit is equal to half a yard. (a) What would be the diımensions of the ark in meters? (b) What would be the ark's volume in cubic meter? To approximate, assume that the ark is to be rectangular.One mole of atoms consists of 6.02 × 1023 individual atoms. If one mole of unicorn atoms were spread uniformly over the surface of a sphere the size of the Earth, approximately how many atoms would be found per square meter? The average radius of the Earth is 6.38 × 103 km. how do I set up this unit conversion?So we take a pile of paper, we count the number of sheets, and obtain 226. Then, we measure how tall the pile is with a ruler: 24.0 mm. As discussed in section 1, we could have a long argument about how much exactly should the uncertainty of this measurement be. Let’s settle to ± 0.5 mm
- Problem 1: A rectangular box is h = 4.5 inches in height, w = 39.5 cm wide, and L = 1.1 yards long. What is the volume of the box in cubic feet? V =In one of the labs, a student found the length and width of a rectangular wooden board. The recorded values are as the following: length = 35.7 cm , width = 28.6 cm What is the perimeter of the wooden board:NASA The radius of the planet Saturn is 5.85 × 107 m, and its mass is 5.68 x 1026 kg (Fig. P1.48). (a) Find the density of Saturn (its mass divided by its volume) in grams per cubic centimeter. (The volume of a sphere is given by (4/3) 3.) (b) Find the area of Saturn in square feet. (The surface area of a sphere is given by 4πr².) Figure P1.48 A view of Saturn.
- A rectangular block of iron was found to be 19.00 cm wide, 0.31500 m high, and 720.026 mm deep. Calculate the volume of this box in units of ft³. Be sure to express your answer to the correct number of significant figures.Problem 2: A rectangular box is h= 14 inches in height, w = 26.5 cm wide, and L = 1.9 yards long. What is the volume of the box in cubic feet?A piece of cardboard measures10 in. by 15 in. Two equal squares are removed from the cornersof a 10-in. side as shown in the figure. Two equal rectangles areremoved from the other corners so that the tabs can be folded toform a rectangular box with lid. Write a formula V(x) for the volume of the box.