The world’s largest ball of string is about 2 m in radius. To the nearest order of magnitude, what is the total length L of the string in the ball?

Q: 1.) If you use a measuring tape to measure a stick's length five times (least count: 1 mm) and get…

A: The proper form for the length L, given the information provided, is 123.57 +/- 0.56 cm. The average…

Q: Although these quantities vary from one type of cell to another, a cell can be 1.9 um in diameter…

A: The outer radius of the cell wall is The thickness of the cell wall is The density of the pure water…

Q: You have an 18-carat gold coin (an alloy of gold and copper). Its mass is 6 grams. Using the fact…

A: Given: Mass of gold coin =6 grams Density of pure gold =19300 kg /m3 Density of copper =8960 kg /m3

Q: A projectile is fired in the earth's gravitational field with a horizontal velocity of v=9.00 m/s.…

A: Answer:-  Given  Horizontal velocity of the projectile (V) = 9.00 m/s  Time in the distance…

Q: One molecule of water (H2O) contains two atoms of hydrogen and one atom of oxygen. A hydrogen atom…

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Q: Currently, a Japanese brand manufactures standard blocks with a thickness of 1.0005 mm. Assume that…

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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: Some physical quantity X has the following units: M-9 L-5 T7. Some physical quantity Y has the…

A: We know the unit of each term on both sides of a equation has same. So we shall equate the unit of…

Q: What is ß for a particle with (a) K = 2.60 Eo and (b) E - 2.60 Eg? (a) Number i (b) Number i Units…

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Q: If the radius of a CD-ROM is 6 cm, what is the average area taken up by each bit if the total number…

A: The radius of a CD ROM is, The total area of a CD ROM can be given as, The total number of nits…

Q: One molecule of water (H₂O) contains two atoms of hydrogen and one atom of oxygen. A hydrogen atom…

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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: A house is advertised as having 1420 square feet under its roof. What is its arėa in square meters?…

A: Given Area is given as A=1420 ft2   We have to find the area in square meters.

Q: You want to calculate the volume of air that occupies a standard volleyball. You measure the…

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Q: The average value of the squared speed does not equal the square of the average speed. To verify…

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Q: In the equation, C2=C, py+0.5pv², if y is distance, g is gravitational acceleration, p is density…

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Q: Express the volume of the duck in water, Vw, in terms of ρ, ρd and Vd.  Calculate the numerical…

A: Given,The average density of the duck is, ρd = 860 kg/m3The density of water is ρ = 1.0 x 103…

Q: 800 Dimensions in mm F1 600 F2 F3 900 560 480- What is the X component of F1=790 N?

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Q: In Wagner’s opera Das Rheingold, the goddess Freia is ransomed for a pile of gold just tall enough…

A: Given data: The density of the gold is ρ=19.3 g/cm3. The cost of the pile is C=40 $/g. The average…

Q: C L You are tasked with specifying the following structure. It is a cylinder attached to a sphere at…

A: The objective of the question is to find the total volume of a structure that consists of a cylinder…

Q: The volume of liquid flowing per second is called the volume flow rate Q and has the dimensions of…

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Q: A closed rectangular container with a square base is to have a volume of 2000 in. The material for…

A: Given: Volume of the container, V = 2000 in3 Cost of material for top and bottom, Ctb = $4 /in2 Cost…

Q: Angular momentum (L) of a thin slice rotating around an axis is given by 1. L = mr"wm where w is…

A: The angular momentum can be defined as the linear momentum of rotating system. The angular momentum…

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: a) The instantaneous rate [kg/s] of producing a particular compound during a chemical reaction is…

A: We have table given with coordinates (t,rate)=(0,0), (2,0.145), (4,0.354), (6,0.61), (8,0.95),…

Q: A large tank is filled to capacity with 300 gallons of pure water. Brine containing 4 pounds of salt…

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Q: A rectangular brass bar, of mass M, has dimensions a, b, c. The following results They were…

A: to find the uncertainty in the density of the material we need to find the percent error then do the…

Q: The Froude number, used to determine the nature of flow of water in a river, is defined as Fr= gy…

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Q: The equation for the ideal gas is (P – a/V2) (V-b) = K. Here P is the pressure, V is the volume of…

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

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Q: Approximately the maximum number of cylinders with a radius of 4 cm and a height of 4 cm which can…

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Q: Calculate the density in kg/m^3 of a cube with dimensions 0.1m and mass 0, of 0.1 kg? * 10 1000 100…

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Q: Problem 2: The figure shows a cubical volume of a material with a non-uniform density. The density…

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Q: In the body-centered cubic phase of plutonium, the volume of the unit cell is 4.910 x 10–23 cm3. If…

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Q: The density of the Earth can be expressed by the equation density = C{1.22 -(r/R)}, where R is the…

A: The mass can be represented as, M=∫0RρdV=∫0RC1.22-rR4πr2drM=4πC∫0R1.22r2-r3RdrM=4πC1.22r33-1Rr440R

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…

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Q: In the equation, C2=C, py+0.5pv2, if y is distance, g is gravitational acceleration, p is density…

A: Introduction: When we add or subtract two physical quantity then the dimension of the physical…

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

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Q: One molecule of water (H2O) contains two atoms of hydrogen and one atom of oxygen. A hydrogen atom…

A: Given that Mass of one hydrogen atom mH = 1 u Mass of one Oxygen atom mO = 16 u Estimated mass of…

Q: You have been given a small rock sample to identify based on its density. Suppose that you use the…

A: Density is a mass of unit volume.  It is the ratio of mass and volume It is measured in kg/m3

Q: In the diagram below there is a thick-walled cylindrical tube. Its height is H 5.0 m, its inner…

A: a)

Q: 2. You are performing a tensile testing experiment on a copper wire. (a) The distance between the…

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Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.