(25%) Problem 1: A wire carrying 415 A to the motor of a commuter train feels...
(14%) Problem 2: A wire carrying 390 A to the motor of a commuter train feels an attractive force of 3.8 x 10-3 N/m due to a parallel wire carrying 5.5 A to a headlight. Randomized Variables 1; = 390 A 12 = 5.5 A F = 3.8 x 10-3 N/m > * How far apart are the wires in meters? r= 0.08681 7 89 HOME л E ^^ 4 5 sin() cos tano cotan asin() acos atan acotan sinh)...
(13%) Problem 7: Consider a parallel plate capacitor having plates of area 1 .25 cmŕ that are separated by 0.016 mm of neoprene rubber. You may assume the rubber has a dielectric constant x- 6.7. > 50% Part (a) What is the capacitance in μF? Grade Summary Deductions Potential 0% 100% cotan atan cosh acos sinh( tanh) cotanhh 4 5 6 1 2 3 0 Submissions Attempts remaining: 6 (3% per attempt) detailed view asin acotan o Degrees oRadians DELCLEA...
(13%) Problem 6: Consider an appliance that consumes 4.75 kW.h of energy per day. > A 50% Part (a) What is the average power consumption, in watts, of the appliance? P= o E sin() cos tan() cotan() asin() acos() atan() acotan() sinh) cosh() | tanh() cotanh() Degrees Radians ( 7 8 ^^^V 4 5 * 1 2 + - 0 VO BACKSPACE 9 6 3 . DEL Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining:...
(11%) Problem 8: Suppose you want an oboe to produce a fundamental frequency of 116 Hz (which is below the range of a typical oboe) on a day when the temperature is 14.5°C. DA If you treat the oboe as a perfect air column which is open at both ends, how long, in meters, should the oboe be? L=1 Grade Summary Deductions 0% Potential 100% ( E sin cos t an() cotan asin() acos() atan) acotan sinh) cosh() tanh( cotanh()...
(14%) Problem 2: The "lead" in pencils is a graphite composition with a Young's modulus of about 1.10 N/m. * Calculate how much shorter (in mm) the length of the lead becomes in an automatic pencil if you tap it straight into the pencil with a force of 4.8 N. The lead is 0.55 mm in diameter and 61 mm long. Grade Summary AL = 3.391 Deductions 12% Potential 88% sin() cos t an() cotan) asin() acos() atan) acotan sinh)...
(25%) Problem 2: Consider a person whose body temperature has risen because of a fever. A What is the temperature, in degrees Fahrenheit, of a person with a 39.2°C fever? T[°F] = 1 o ( 7 8 9 HOME E ^^ 4 5 6 sin() cos() tan() cotan() asin() acos() atan) acotan() sinh cosh() tanh) | cotanh() Degrees Radians * 1 2 3 .. → END 0 BACKSPACE DEL CLEAR Submit Hint Feedback I give up!
(6%) Problem ll: An object with height 0.95 cm is placed a distance 21 cm in front of a thin converging lens with focal length 6.75 cm, as shown The focal point locations are indicated by the small black circles. A 20% Part (a) Calculate and enter a value for the distance between the image and the lens given the values in problem statement. di = cm Grade Summary Deductions 0% Potential 100% п 7 8 9 HOME E TA...
(906) Problem 8: Light of wavelength -536 nm passes through a single slit of width w =2.1 um and illuminates a screen L= 1.7 m away. t material, 50% Part (a) What is the maximum number of dark fringes neinges of light could this setup produce on the sereen? Grade Summar fringes 8 Deductions Potential sin() cos) tan) 7 HOME Submissions asin) acos) cotan) E 1 4 5 6 Attempts remains (4%% per attempt) detailed view atan) sinh) d acotan)...
(5%) Problem 8: Consider a 470 nm wavelength blue light falling on a pair of slits separated by 0.035 mm. A At what angle (in degrees) is the first-order maximum for the blue light? Grade Summary Deductions 0% Potential 100% sino TT ( 9 HOME 7 8 45 E 6 cotan atan cosh cos tano asino acos acotan tanh cotanh Degrees O Radians Submissions Attempts remaining: 3 (0% per attempt) letailed view sinho 12 برا + - 0 END NO...
(25%) Problem 4: A shopper standing 3.25 m from a convex security mirror sees his image with a magnification of 0.275. 33% Part (a) What is his image distance in meters, measured from the surface of the mirror, given that the object distance is positive? d; = -0.89 d;=-0.89 Correct! 33% Part (b) What is the focal length of the mirror, in meters? f = -0.821 sino cos tan() cotan asino acos atan) acotan sinh cosh tanh) cotanh) Degrees Radians...