Pearson eText Conceptual Physical Science -- Instant Access (Pearson+)
6th Edition
ISBN: 9780134857107
Author: Paul Hewitt, John Suchocki
Publisher: PEARSON+
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Chapter 21, Problem 5RAT
To determine
The primary reason for the convection in the mantle.
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Part A:
kg
(a) Water at 20 °C (p = 998.3 and v = 1 × 10-6 m²/s) flows through a galvanised
m³
iron pipe (k = 0.15 mm) with a diameter of 25 mm, entering the room at point A and
discharging at point C from the fully opened gate valve B at a volumetric flow rate of
0.003 m³/s. Determine the required pressure at A, considering all the losses that occur
in the system described in Figure Q1. Loss coefficients for pipe fittings have been
provided in Table 1.
[25 marks]
(b) Due to corrosion within the pipe, the average flow velocity at C is observed to be
V2 m/s after 10 years of operation whilst the pressure at A remains the same as
determined in (a). Determine the average annual rate of growth of k within the pipe.
[15 marks]
4₁
Figure Q1. Pipe system
Page 2
25 mm
For an independent study project, you design an experiment to measure the speed of light. You propose to bounce laser light off a mirror that is 53.5 km due east and have it detected by a light sensor that is 119 m due south of the laser. The first problem is to orient the mirror so that the laser light reflects off the mirror and into the light sensor.
(a) Determine the angle that the normal to the mirror should make with respect to due west.(b) Since you can read your protractor only so accurately, the mirror is slightly misaligned and the actual angle between the normal to the mirror and due west exceeds the desired amount by 0.003°. Determine how far south you need to move the light sensor in order to detect the reflected laser light.
Chapter 21 Solutions
Pearson eText Conceptual Physical Science -- Instant Access (Pearson+)
Ch. 21 - How do P-waves travel through Earths interior? How...Ch. 21 - Can S-waves travel through liquids?.Ch. 21 - Prob. 3RCQCh. 21 - What was the major contribution of Andrija...Ch. 21 - How did seismic waves contribute to the discovery...Ch. 21 - What is the evidence that Earths inner core is...Ch. 21 - What is the evidence that Earths outer core is...Ch. 21 - In what ways are the asthenosphere and the...Ch. 21 - How does continental crust differ from oceanic...Ch. 21 - Why does continental crust stand higher on the...
Ch. 21 - Prob. 11RCQCh. 21 - Prob. 12RCQCh. 21 - Prob. 13RCQCh. 21 - Where are the deepest parts of the ocean?Ch. 21 - Prob. 15RCQCh. 21 - How is the ocean floor similar to a gigantic,...Ch. 21 - Prob. 17RCQCh. 21 - Name and describe the three types of plate...Ch. 21 - The lithosphere moves because of convection...Ch. 21 - What is a rift? Give an example.Ch. 21 - Prob. 21RCQCh. 21 - Prob. 22RCQCh. 21 - What is a transform boundary?Ch. 21 - Are folded rocks primarily the result of...Ch. 21 - Distinguish between anticlines and synclines.Ch. 21 - What is the difference between reverse faults and...Ch. 21 - Prob. 27RCQCh. 21 - What happens to rock when stress exceeds a rocks...Ch. 21 - Where are most of the worlds volcanoes formed?Ch. 21 - Prob. 30RCQCh. 21 - Prob. 34TASCh. 21 - Prob. 35TASCh. 21 - The Richter magnitude scale is logarithmic,...Ch. 21 - If the rate of movement along a fault is known,...Ch. 21 - The San Andreas Fault separates the...Ch. 21 - Prob. 39TARCh. 21 - Prob. 40TARCh. 21 - Prob. 41TARCh. 21 - Prob. 42TARCh. 21 - Prob. 43TARCh. 21 - Prob. 44ECh. 21 - How can seismic waves indicate whether regions...Ch. 21 - How do seismic waves indicate layering of...Ch. 21 - What does the P-wave shadow tell us about Earth's...Ch. 21 - What is the evidence that Earth's inner core is...Ch. 21 - Even though the inner and outer cores are both...Ch. 21 - If Earth's mantle is composed of rock, how can we...Ch. 21 - Prob. 51ECh. 21 - Prob. 52ECh. 21 - Prob. 53ECh. 21 - Prob. 54ECh. 21 - Prob. 55ECh. 21 - Where and what is the most likely source of the...Ch. 21 - Prob. 57ECh. 21 - Prob. 58ECh. 21 - How is Earth's crust like a conveyor belt?Ch. 21 - Upon crystallization, certain minerals (the most...Ch. 21 - What is meant by magnetic pole reversals? What...Ch. 21 - How are the theories of seafloor spreading and...Ch. 21 - Prob. 63ECh. 21 - Distinguish between continental drift and plate...Ch. 21 - Why are the most ancient rocks found on the...Ch. 21 - What kinds of plate boundaries are associated with...Ch. 21 - Prob. 67ECh. 21 - At what type of plate boundary were the...Ch. 21 - Prob. 69ECh. 21 - Prob. 71ECh. 21 - Magma is generated at divergent and convergent...Ch. 21 - Prob. 73ECh. 21 - Prob. 74ECh. 21 - Prob. 75ECh. 21 - Lithospheric rock is continuously created and...Ch. 21 - Subduction is the process of one lithospheric...Ch. 21 - Where does most of an earthquakes damage generally...Ch. 21 - What type of fault is associated with the 1964...Ch. 21 - The Mercalli scale measures earthquake intensity....Ch. 21 - How do faults and folds support the idea that...Ch. 21 - Why are most earthquakes generated near plate...Ch. 21 - Prob. 83ECh. 21 - Prob. 84ECh. 21 - What is the direct source of energy responsible...Ch. 21 - Prob. 86ECh. 21 - Prob. 87ECh. 21 - Strike-slip faults show horizontal motion. Where...Ch. 21 - If you found folded beds of sedimentary rock in...Ch. 21 - In an earthquake, does the release of energy...Ch. 21 - Are the present-day ocean basins a permanent...Ch. 21 - Are the present-day continents a permanent feature...Ch. 21 - Prob. 93ECh. 21 - Prob. 94ECh. 21 - During an earthquake, what type of land surface is...Ch. 21 - Prob. 96DQCh. 21 - As global temperatures increase, the polar ice...Ch. 21 - The FYI about the 2010 Chilean earthquake suggests...Ch. 21 - What clues can we use to recognize the boundaries...Ch. 21 - At divergent boundaries, basaltic magma is...Ch. 21 - The hypothesis of continental drift is not...Ch. 21 - Prob. 3RATCh. 21 - Prob. 4RATCh. 21 - Prob. 5RATCh. 21 - Earthquakes are caused by the (a) friction between...Ch. 21 - Seafloor spreading provided a driving force for...Ch. 21 - Prob. 8RATCh. 21 - Prob. 9RATCh. 21 - Rocks buckle and fold when subjected to (a)...
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- Identify the most likely substancearrow_forwardA proton moves at 5.20 × 105 m/s in the horizontal direction. It enters a uniform vertical electric field with a magnitude of 8.40 × 103 N/C. Ignore any gravitational effects. (a) Find the time interval required for the proton to travel 6.00 cm horizontally. 83.33 ☑ Your response differs from the correct answer by more than 10%. Double check your calculations. ns (b) Find its vertical displacement during the time interval in which it travels 6.00 cm horizontally. (Indicate direction with the sign of your answer.) 2.77 Your response differs from the correct answer by more than 10%. Double check your calculations. mm (c) Find the horizontal and vertical components of its velocity after it has traveled 6.00 cm horizontally. 5.4e5 V × Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. I + [6.68e4 Your response differs significantly from the correct answer. Rework your solution from the beginning and check each…arrow_forward(1) Fm Fmn mn Fm B W₁ e Fmt W 0 Fit Wt 0 W Fit Fin n Fmt n As illustrated in Fig. consider the person performing extension/flexion movements of the lower leg about the knee joint (point O) to investigate the forces and torques produced by muscles crossing the knee joint. The setup of the experiment is described in Example above. The geometric parameters of the model under investigation, some of the forces acting on the lower leg and its free-body diagrams are shown in Figs. and For this system, the angular displacement, angular velocity, and angular accelera- tion of the lower leg were computed using data obtained during the experiment such that at an instant when 0 = 65°, @ = 4.5 rad/s, and a = 180 rad/s². Furthermore, for this sys- tem assume that a = 4.0 cm, b = 23 cm, ß = 25°, and the net torque generated about the knee joint is M₁ = 55 Nm. If the torque generated about the knee joint by the weight of the lower leg is Mw 11.5 Nm, determine: = The moment arm a of Fm relative to the…arrow_forward
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