A 30-cm-diameter smooth ball ofdensity Phall = 210 kg/m³ is tied to an object onthe bottom of a river as shown on the right.Determine the angle 0 when the speed of the rivercurrent isa. U = 1.66 m/sb. U = 0.13 m/sc. For which velocity, the drag coefficient islower? Explain why?30°Take the density and viscosity of water in the river Pwater = 1000 kg/m², µwater = 0.001kg/m's. Neglect the weight of the cable and the drag on it.40020010080604020100.80.60.40.20.080.062 4 6810-2 4 682 4 682 4 681022 4 68103pvd2 4 68102 4 681010010105Reynolds number,Drag coefficient, Cp

Given: The diameter of smooth ball, d = 30 cm The density of ball, ρball = 210 kg/m^3 The density of…

A 30-cm-diameter smooth ball of dėnsity Ppall = 210 kg/m³ is tied to an object on the bottom of a river as shown on the right. Determine the angle 0 when the speed of the river U current is a. U = 1.66 m/s b. U = 0.13 m/s c. For which velocity, the drag coefficient is lower? Explain why? Take the density and viscosity of water in the river pwater = 1000 kg/m², µwater = 0.001 kg/ms. Neglect the weight of the cable and the drag on it. 400 200 100 80 60 40 20 10 8. 1 0.8 0.6 0.4 0.2 0.1 0.08 0.06 2 4 68 2 4 68 2 4 68 10 2 4 68 10 10 4 68 4 68 2 4 68 100 10 10 105 106 Reynolds number, 2. o o o do Drag coefficient, C,

A 30-cm-diameter smooth ball of dėnsity Ppall = 210 kg/m³ is tied to an object on the bottom of a river as shown on the right. Determine the angle 0 when the speed of the river U current is a. U = 1.66 m/s b. U = 0.13 m/s c. For which velocity, the drag coefficient is lower? Explain why? Take the density and viscosity of water in the river pwater = 1000 kg/m², µwater = 0.001 kg/ms. Neglect the weight of the cable and the drag on it. 400 200 100 80 60 40 20 10 8. 1 0.8 0.6 0.4 0.2 0.1 0.08 0.06 2 4 68 2 4 68 2 4 68 10 2 4 68 10 10 4 68 4 68 2 4 68 100 10 10 105 106 Reynolds number, 2. o o o do Drag coefficient, C,

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

A 30-cm-diameter smooth ball of
density Phall = 210 kg/m³ is tied to an object on
the bottom of a river as shown on the right.
Determine the angle 0 when the speed of the river
current is
a. U = 1.66 m/s
b. U = 0.13 m/s
c. For which velocity, the drag coefficient is
lower? Explain why?
30°
Take the density and viscosity of water in the river Pwater = 1000 kg/m², µwater = 0.001
kg/m's. Neglect the weight of the cable and the drag on it.
400
200
100
80
60
40
20
10
0.8
0.6
0.4
0.2
0.08
0.06
2 4 68
10-
2 4 68
2 4 68
2 4 68
102
2 4 68
103
pvd
2 4 68
10
2 4 68
10
100
10
105
Reynolds number,
Drag coefficient, Cp

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