(III) Small distances are commonly measured capacitively. Consider an air-filled parallel-plate capacitor with Fixed plate area A = 25 mm 2 and a variable plate-separation distance x. Assume this capacitor is attached to a capacitance-measuring instrument which can measure capacitance C in the range 1.0 pF to 1000.0 pF with an accuracy of Δ C = 0.1 pF. ( a ) If C is measured while x is varied, over what range ( x min ≤ x ≤ x max ) can the plate-separation distance (in μ m) be determined by this setup? ( b ) Define Δ x to be the accuracy (magnitude) to which x can be determined, and determine a formula for Δ x . ( c ) Determine the percent accuracy to which x min and x max can be measured.
(III) Small distances are commonly measured capacitively. Consider an air-filled parallel-plate capacitor with Fixed plate area A = 25 mm 2 and a variable plate-separation distance x. Assume this capacitor is attached to a capacitance-measuring instrument which can measure capacitance C in the range 1.0 pF to 1000.0 pF with an accuracy of Δ C = 0.1 pF. ( a ) If C is measured while x is varied, over what range ( x min ≤ x ≤ x max ) can the plate-separation distance (in μ m) be determined by this setup? ( b ) Define Δ x to be the accuracy (magnitude) to which x can be determined, and determine a formula for Δ x . ( c ) Determine the percent accuracy to which x min and x max can be measured.
(III) Small distances are commonly measured capacitively. Consider an air-filled parallel-plate capacitor with Fixed plate area A = 25 mm2 and a variable plate-separation distance x. Assume this capacitor is attached to a capacitance-measuring instrument which can measure capacitance C in the range 1.0 pF to 1000.0 pF with an accuracy of ΔC = 0.1 pF. (a) If C is measured while x is varied, over what range (xmin ≤ x ≤ xmax) can the plate-separation distance (in μm) be determined by this setup? (b) Define Δx to be the accuracy (magnitude) to which x can be determined, and determine a formula for Δx. (c) Determine the percent accuracy to which xmin and xmax can be measured.
2. A battleship simultaneously fires two shells at enemy ships. If the shells follow the
parabolic trajectories shown, which ship gets hit first?
a. A
b. both at the same time
C.
B
d. need more information
battleship
B
A m₁ = 1.70-kg aluminum block and a m₂ = 8.00-kg copper block are connected by a light string over a frictionless pulley. The two blocks are allowed to move on a fixed steel block wedge (of angle 0 = 31.5°) as shown in the figure. (For aluminum on steel, μk
k = 0.36.)
Мк
Aluminum
m
Copper
= 0.47. For copper on steel,
Steel
m2
Ꮎ
(a) the acceleration of the two blocks
m/s²
(b) the tension in the string
N
While the 83.3 kg Dora Milaje is in equilibrium, the rope makes a 70.0˚ angle with the horizontal. Assuming the coefficient of friction between her shoes and the ship is 0.772 and her static friction is at its maximum value, what is the tension in the cable?
Chapter 24 Solutions
Physics for Scientists and Engineers with Modern Physics
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How To Solve Any Circuit Problem With Capacitors In Series and Parallel Combinations - Physics; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=a-gPuw6JsxQ;License: Standard YouTube License, CC-BY