As a summer intern assigned to the Olympics Kayaking committee, you need to determine the speed of water flowing through a rapids section of the river in order to classify the rapids. For the purposes of your calculation, you assume the river has a rectangular cross section. You determine that for the region of interest, the river narrows from a width of 14 m to a width of 5.0 m and the depth of the river decreases from 2.0 m to 0.70 m. You also know that the speed of the river before the rapids is 1.7 m/s. Determine the speed of the river through the section of rapids.m/s

Q: The human circulation system has approximately 1 × 109 capillary vessels. Each vessel has a diameter…

A: Number of capillaries Diameter Flow rate from heart

Q: Given the average heart rate of a human is 7.00 beats per minute and the average volume flow of…

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: Plot Volume on the 'X' axis and Mass on the 'Y' axis and fit a linear equation to the data. From the…

A: Mass (kg)Volume(m^3)Density…

Q: You need to measure the density of a rectangular-shaped metal block (density=mass/volume). You…

A: Given:Mass,m=132gDensity,ρ=3.401g/cm3Volume,V=38.81cm3Now,Volume of a rectangular metal block,   V =…

Q: (a) As the milk fills the bowl, the milk level reaches a point where the diameter of the bowl is  d1…

A:

Q: Problem 5.14. The pitch of a screw gauge is 1 mm and there are 100 divisions on the circular scale.…

A: Given data, Pitch of the screw gauge=1 mm Total Number of divisions=100 Linear scale reading=1 mm…

Q: Plot Volume on the 'X' axis and Mass on the 'Y' axis and fit a linear equation to the data. From the…

A: Since, Density=ρ=MasssVolume , we just need to plot the Mass vs. Volume and find the slope of the…

Q: An iron casting containing a number of cavities weighs 5.75E+3 N in air and 4.01E+3Nin water. What…

A: Solution: The volume of cavities is given by: Volume of cavities=Volume of casting-volume of iron.…

Q: parabolic shape is cut from a thin board. With the x and y axes shown in the figure the parabola is…

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Q: The cruise ship Odyssey of the Seas has the following dimensions: 347.1 meters long, 41.1 meters…

A:

Q: (a) Assuming that water has a density of exactly 1 g/cm³, find the mass of 1.60 cubic meters of…

A: Solution:- 1) The density, of a material is defined as       density(ρ) = mass/ Volume i.e.…

Q: Neutron stars consist only of neutrons and have unbelievably high densities. A typical mass and…

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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: Blood is flowing through an artery of radius 1.97 mm at a rate of 3.69 cm/s. Determine the blood…

A: Given Data: Radius (r) = 1.97 mm = 0.197 cm.Speed (v) = 3.69 cm/s. To Determine: The blood flow…

Q: Fresh water flows into tank 1; mixed brine flows from tank 1 into tank 2, from tank 2 into tank 3,…

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Q: An object is to be measured using a basic barometer. If the reading at the top is 725.54 mm and at…

A:

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: The height of a tree is much more difficult to measure then the base diameter of a tree. The largest…

A: The equation used to estimate the height of a sequoia tree based on its diameter is known as the…

Q: A cylinder has a mass of 80.0 g when empty and105.0 g when filled with water. The density of water…

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Q: Your employer is planning to build several cylindrical storage tanks that will hold fuel. He has…

A: Solution: Given that,   Tank diameter(d)=28 ft  Tank radius(r)=14 ft  Tank height =20 ft  No.of…

Q: One of the concrete pillars that supports a house is 2.0 m tall and has a radius of 0.36 m. The…

A: Given data:  Height (h) = 2.0 m Radius (r) = 0.36 m Density (ρ) = 2.2×103 kg/m3 1 N = 0.2248 lb…

Q: You are help to educate a patient on the ramifications of a partial arterial blockage you have…

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Q: A tank containing a liquid has a small hole in the bottom through which it escapes. The velocity u…

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Q: 6. For the cellar of a new house, a hole is dug in the ground, with vertical sides going down 2.40…

A:

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

A: M= 330g = 0.33 kg  V= 0.0001m3

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: R= Suppose you have a coffee mug with a circular cross section and vertical sides (the radius is…

A:

Q: the density of a metallic sphere of mass 200 g, the reading of the diameter d was measured by a…

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Q: The atmospheric pressure at the time the video was taken was recorded by the National Weather…

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Q: What is the approximate mass of air in a living room 4.3 m x 3.4 m x 2.8 m? The density of air is…

A: Given data: The dimension of room is l×b×h=4.3 m×3.4 m×2.8 m. The density of air is ρ=1.29 kg/m3.

Q: There are three cylindrical vases on the table, none of them is taller than 40 cm. The first vase…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

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

A:

Q: You measure the diameter of the balloon with a ruler graduated to the millimeter. The measurement is…

A:

Q: a) Estimate the radius and volume of the platinum atom, using the metal density of 21.45 g/cm³.…

A: metal density of platinum = 21.45 g/cm3Mass of platinum atom = 195 amu = 195×1.67×10-24 g = 3.2565…

Q: An automobile tire is shown in the figure below. The tire is made of rubber with a uniform density…

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Density of Solids

The density of a substance refers to how much matter is present in a given amount of space. It is expressed as the ratio of the mass of the substance to its volume.