4) a) Solve the system: 2122- +343 by Gauss-Jordan elimination. b) Find a specific solution with 1 2 and 3
4) a) Solve the system: 2122- +343 by Gauss-Jordan elimination. b) Find a specific solution with 1 2 and 3
Find the surface area generated by rotating the given curve about the y-axis. x = 312, y = 2, osts 4
SOLUTION (A) Find the frequencies if the pipe is open at both ends. _V 343 m/s Substitute into whole harmonics equation, with n = 1. 11-222(2.46 m) = 69.7 Hz Multiply to find the second and third harmonics. 12 - 27 - 139 Hz 13 = 3f7 - 209 Hz (B) How many harmonics lle between 20 Hz and 20000 Hz for this pipe? 343 m/s Set the frequency in the harmonics equation equal to 2.00 x 104 Hz and...
212 312 Consider the resistive circuit shown in the figure to the right. Find: a) b) C) d) Reg Isys 24 V 482 152 I for the 422 resistor the power absorbed by the 192 résistor
How fast do all electromagnetic waves travel in a vacuum? a. c b.343 m/s c.It depends on the frequency d.It depends on the wavelength
A room contains air in which the speed of sound is 343 m/s. The walls of the room are made of concrete, in which the speed of sound is 1850 m/s. (a) Find the critical angle for total internal reflection of sound at the concrete-air boundary. ° (b) In which medium must the sound be traveling in order to undergo total internal reflection? air concrete (c) "A bare concrete wall is a highly efficient mirror for sound." Give evidence for...
given the information
answer
Common constants: 9.81 m/s2 = gravity on Earth's surface 343 m/s = speed of sound (air @ 20°C) 1440 m/s = speed of sound (water @ 20°C) 1.21 kg/mp = air density (20°C, 1 atm) 998 kg/m3 = water density (20°C, 1 atm) 1 atm = 1.01 x 105 Pa 3 x 108 m/s = c = speed of light (vacuum) 1.661x10-27 kg = p = atomic mass unit Specific Heats: 2040 J/(kg °C) Cwater =...
Speed of sound = 343 m/s
Many artists sing very high notes in ad lib ornaments and cadenzas. The highest note written for a singer in a published score was F-sharp above high C, 1.400 kHz, for Zerbinetta in the original version of Richard Strauss's opera Ariadne auf Naxos. (a) Find the wavelength of this sound in the air. (b) In response to complaints, Strauss later transposed the note down to F above high c, 1.397 kHz. By what increment...
and Given the matrices _ 551 B B = -22) find BA. m[1 oli
Given a ⎜⎜ b, m∠1 = 56°, and
m∠2 = 42°, find the measure of the other angles.
Note: Angles may not be drawn to scale.
10 9 6 1 4 3 14 X12 13