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Chapter 1: Problem 31
Three quantities, the results of measurements, are to be added. They are \(2.0600,3.163,\) and \(1.12 .\) What is their sum to the correct number of significant figures?
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Water flows into a cubical tank at a rate of \(15 \mathrm{~L} / \mathrm{s}\). If the top surface of the water in the tank is rising by \(1.5 \mathrm{~cm}\) every second, what is the length of each side of the tank?
What angle does \(\vec{A}=\left(A_{x}, A_{y}\right)=(30.0 \mathrm{~m},-50.0 \mathrm{~m})\) make with the positive \(x\) -axis? What angle does it make with the negative \(y\) -axis?
What angle does \(\vec{B}=\left(B_{x}, B_{y}\right)=(30.0 \mathrm{~m}, 50.0 \mathrm{~m})\) make with the positive \(x\) -axis? What angle does it make with the positive \(y\) -axis?
A futile task is proverbially said to be "like trying to empty the ocean with a teaspoon." Just how futile is such a task? Estimate the number of teaspoonfuls of water in the Earth's oceans.
By how much does the volume of a cylinder change if the radius is halved and the height is doubled? a) The volume is quartered. d) The volume doubles. b) The volume is cut in half. e) The volume c) There is no change in the volume. quadruples.
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