A cargo barge is loaded in a saltwater harbor for a trip up a freshwater river. Part A If the rectangular barge is 3.5 m by 24.0 m and sits 0.90 m deep in the harbor, how deep will it sit in the river? Express your answer using two significant figures. h =____ m

The hydraulic diameter of a rectangular duct is calculated using the equation D = 4, where Dr is the hydraulic diameter, A is the cross-sectional area of the duct and p is the perimeter of the duct. If the dimensions of the rectangular duct are a = 26 cm+0.4 mm, and b = 33 cm +1.3 mm, what is the uncertainty of D, in percentage format? Enter the answer as a numerical value without any sign. Retain 3 significant figures. a

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A full can of soda has a mass of 0.436 kg. It contains 3.40 x 104 m³ of liquid. Assuming that the soda has the same density as water, find the volume of aluminum used to make the can. Number i Units

A scanning electron micrograph of xylem vessels in a corn root shows the vessels magnified by a factor of 598. In the micrograph the xylem vessel is 2.80 cm in diameter. a. What is the diameter of the vessel itself? b. By what factor has the cross-sectional area of the vessel been increased in the micrograph?

I Review I Constants A 10 cm x 10 cm x 10 cm wood block with a density of 680 kg/m floats in water. You may want to review (Page). Part A What is the distance from the top of the block to the water if the water is fresh? Express your answer to two significant figures and include the appropriate units. HẢ ? d = Value Units Submit Request Answer Part B If it's seawater? Suppose that p = 1030 kg/m. Express your answer to two significant figures and include the appropriate units. Value Units Submit Request Answer

A group of students wish to determine, experimentally, the bulk density of an unknown material. To determine this amount, the students measured the diameter, height, and mass of various cylinders. These values ​​appear in the table below. Determine: a) The volume of the cylinders that appears in the following table. b) The graph of mass vs. volume.

A 2.8 kg balloon is filled with helium ( density = 0.179 kg/m³). You may want to review (Pages 513 - 514). Part A If the balloon is a sphere with a radius of 5.2 m , what is the maximum weight it can lift? Express your answer using two significant figures. 圈]? W = Submit Previous Answers Request Answer

The Statue of Liberty in New York City is approximately 305 ft305 ft tall. How many U.S. dimes would be in a stack of the same height? Each dime is 1.35 mm1.35 mm thick. number of dimes:     Each dime has a mass of 2.268 g.2.268 g. How much would the stack of dimes from the previous question weigh? mass:   g What is the value, in dollars, of the same stack of dimes? value:   dollars The 2017 U.S. gross domestic product (GDP) was valued at 19,390,604,000 dollars.19,390,604,000 dollars. How many Statue of Liberty‑height stacks of dimes are needed to match the GDP in value? number of stacks:

Question 3 Units and Dimensions. Express the units of the following parameters in Sl units in terms of mass(kg), length(m), time (s) and temperature (K). For example, the unit for Force can be expressed as kg m/s². Pressure: Stress: Viscosity: Kinematic viscosity: Acceleration: