You use a millimeter ruler to measure the height of a rail curb. The bottom of the ruler is resting on the table. The place where the height measurement is taken is a little curved, so it is difficult to identify very precisely where the measurement should be taken. Also, it's a bit tricky to make sure the ruler is perfectly vertical (it might be leaning forward or backward a bit). When you take the measurement, you measure 12.9 mm. By moving the ruler a little, you are confident that the correct measurement is somewhere between 12.7 mm and 13.3 mm. Indicate the value that you will record in your logbook, as well as the uncertainty that you will attribute to it. Give your answers in mm.

Q: If someone tries to smuggle gold bars by filling their backpack, whose dimensions are 60.0 cm x 28.0…

A:

Q: A sphere of radius r has surface area A = 4πr2 and volumeV = (4/3)πr3. If the radius of sphere 2 is…

A: a)The ratio of the areas, A2/A1

Q: A student is attempting to determine the height of a Ferris wheel at an amusement park. The radius…

A: Student is attempting to determine the height of the ferris wheel at an amusement park.radius of…

Q: The least count of the main scale of a screw gauge is 1 mm. The minimum number of divisions on its…

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Q: A farmer has a rectangular field. He leaves a uniform strip (x in the figure ) unplanted around the…

A: The area of the field is twice of the area planted Therefore the area of the field is given as…

Q: The front yard outside your instructor's house has an approximate area of 130 m2. One night it snows…

A: Area of front yard house = 130m2Depth of snow on front yard = 29.5cm

Q: You find an old book and decide to estimate the thickness of one of the sheets or leafs.  Neglecting…

A:

Q: An architect is redesigning a rectangular room on the blueprints of the house. He decides to double…

A: Given data:  New width (b1) = 2b New length (l1) = 1.89 l New height (h1) = 1.20 h Required: Factor…

Q: A silver sphere with a radius of 5.2 cm weighs the same as a certain aluminum cube. How long are the…

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Q: An object with a mass of 61.0 g displaces 785.0 ml of water when it is completely immersed. What is…

A: Mass = 61  Volume = 785 mL Fbuoyant = Fb = rho*V*g = 10^-3*785*9.8 = 7.693 N

Q: fine grains of beach sand are assumed to be spheres of radius a. 45.7 μm. These grains are made of…

A: Given data: The diameter of each grain is, The density of the silicon dioxide grain is, Formula…

Q: side of a cube decreases

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Q: A biochemist is testing the effect of a new antibiotic on a particular mould growing in a petri dish.…

A: Given r=0.5t cm Bacteria growth in a circular path without any antibiotic. where t is measured in…

Q: Problem 6: The sides of a small rectangular box are measured to be 1.55 + 0.045 cm, 2.1 + 0.025cm,…

A:

Q: A rectangular glass container holds 32.0 mL of water. If one side is 3.60 cm and the other side is…

A: Given - volume of the container length of one side , Length of other side Required - length of third…

Q: An architect is redesigning a rectangular room on the blueprints of the house. He decides to double…

A: Let the length of the rectangle be L breadth B and height H. Therefore, volume of the rectangle:…

Q: 6. The diameter of a spherical bob is a vernier callipers. 9 divisions of the the vernier callipers,…

A:

Q: Morty measures a Meeseeks box (an object that is roughly a cube) with an old rusty ruler. Because of…

A: Given that, Width (W)=20.2 cm=0.202 m Height (H)=19 cm=0.19 mDepth(D)=20.31 cm=0.2031 mMass(M)=7.401…

Q: Express this product in units of km3 in standard scientific notation and with the appropriate number…

A: given that (4.2 km) × (4.0 m) × (13.24 × 10−3 mm)

Q: Grains of fine California beach sand are approximately spheres with an average radius of 50 pm and…

A: The problem is asking to find the mass of sand grains that would have a total surface area equal to…

Q: An architect is redesigning a rectangular room on the blueprints of the house. He decides to double…

A: Let W is the width of the room. Given the width is doubled .The new width is 2W Let L be the length…

Q: Painting the entire exterior surface of a cube with edge length S = 1.26 meters reduces paint level…

A:

Q: What mass of a material with density r is required to make a hollow spherical shell having inner…

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Q: Grains of fine California beach sand are approximately spheres with an average radius of 50 μm and…

A:

Q: A round coin has a diameter of 19.55 mm, a thickness of 1.55 mm, and a mass of 2.50 g. What is its…

A:

Q: You find an old book and decide to estimate the thickness of one of the sheets or leafs. Neglecting…

A: Given:-The all the sheets of the book are 3 inches thick, Neglecting the front and back cover book…

Q: Q7: The JCR of a student hostel is 50.0 ft long and 26 ft wide and has 8.0-ft high ceilings. What is…

A:

Q: One mole of Gold (Au) atom has a mass of 197 g. We know that the density of gold is 19.30 g/cm3 in…

A:

Q: UPS ships a lot of boxes. There are different ways to measure how big is a box. For the following…

A: Given Dimensions of box 1 is 18"×24"×12"  weigh of box 1 is 7.7 lbsDimensions of box 2 is 24"×36"×6"…

Q: n correctly calodates the length in kilometers and orientation in degrees west of south of km

A: Given: A=4.4 Km θc=24o B=2.48 Km C=3.02 Km

Q: As an architect, you are designing a new house. A window has a height between 130 cm and 140 cm and…

A:

Q: The figure shows a man sitting in a bosun's chair that dangles from a massless rope, which runs over…

A:

Q: Problem 1: Suppose A = (-3.03 m)i + (4.35 m)j, B = (2.71 m)i + (-4.29 m)j + (2.99 m)k, and D (-2.48…

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Q: The Empire State building in New York City is approximately 1250 ft1250 ft tall. How many U.S. half…

A:

Q: You purchased 5.2kg of apples from a store. You noticed that they used the smallest division of 4.2…

A: 1) % relative error = ∆m×100/m  = ( 4.2 × 10^-3 × 100 ) /5.2  = 0.081 % 2) area (A) = L × W =…

Q: A box containing basketball equipment is sitting on a shipping pallet. The box plus the contents…

A:

Q: A box containing basketball equipment is sitting on a shipping pallet. The box plus the contents…

A: weight of box (w) = 50  Nweight of pallet = 155 Ndimensions of box = 3 inches by 15 inches by 20…

Q: Grains of fine California beach sand are approximately spheres with an average radius of 50 μm and…

A:

Q: Vidth: 20.2 cm Height: 19 cm Depth: 20.31 cm Mass: 7.401 kg Using these values, he results.

A: a) We have given the width w = 20.2 cm, height h = 19 cm and  depth d = 20.31 cm. the  Meeseeks box…

Q: 27.03 cm X 3.3 x 104 g X 83 mph X 3.33 x 10-3 mL X 75 µm x 4°C X 12 miles x 2.9 g X 11.7 mg X 3.62 x…

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Q: 0 5 10 40 35 30 25 20 Answer: 0 5 10 40 35 30 25 20 Suppose that you measure the length of an object…

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Mechanical Properties of Solids

There are three types of matter- solid, liquid and gas. Out of them, solids have a rigid shaped and size. The intermolecular forces of attractions in solids are greatest. Mechanical properties are the physical properties of a material which it shows, when it is provided with certain amount of force or load. These properties are to be kept in mind for various purposes. When a force is applied to an object, the object may or may not get deformed depending upon its elastic property. But every time the object develops a restoring force against the force applied. This is commonly known as stress. If the object changes its dimensions due to the force applied it develops strain ( which is the ratio of change in dimension to the original dimension).