Consider a 21x35 field size set on the linac. What are the projected field sizes (both...
Consider a 21x35 field size set on the linac. What are the projected field sizes (both X and Y) at 90 cm, 100 cm, and 120 cm?
A radiation point source has an intensity of 20,000 photons/sec at distance of 1 meter. What is the intensity at 60 cm?, intensity at 3 meters?, and what distance will the intensity drop to 2000 photons/sec?
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Consider a 21x35 field size set on the linac. What are the
projected field sizes (both...
Aradio antenna emits EM waves at a frequency of 100 MHz and intensity of 0.2 W/m2....
Aradio antenna emits EM waves at a frequency of 100 MHz and intensity of 0.2 W/m2. What is the photon density in one cubic meter of the beam? 1.0E 12 photons/cubic meter 1.0E 16 photons/cubic meter 1.0E20 photons/cubic meter 1.4E31 photons/cubic meter 6.1E32 photons/cubic meter Question 11 5 pts A rotating generator has a square planar coil consisting of 100 turns. The coil rotates 60 times per second in a magnetic field of 1.25 T and yields a peak output...
Problem 3: Intensity from a distant light source (25 points) Consider an isotropic light source that...
Problem 3: Intensity from a distant light source (25 points) Consider an isotropic light source that emits EM radiation with wavelength A and power Po. (Isotropic- uniformly in all directions). In addition, consider a detector with area a, facing the source which is a long distance R away. (a) Derive a formula for the amplitude of the electric field at the detector (b) Derive a formula for the number of photons per unit time that strike the detector. What is...
Consider a planetary nebula with distance 1.5 kpc and angular size 12 arcsec: a. What is...
Consider a planetary nebula with distance 1.5 kpc and angular size 12 arcsec: a. What is its linear radius? b. Suppose this hot *T = 30,000 K) star emits ionizing photons at a rate of 6.92*10^47 s^(-1). Assuming a recombination coefficient α = equals 3*10^(-13) cm^3/s, estimate the density of electrons in the nebula. c. Assuming this is a spherical nebula, calculate the emission measure.
1. In the figure, the neutral density filter is set at 100% transmittance on the side...
1. In the figure, the neutral density filter is set at 100%
transmittance on the side of source 2, The polarizers set at an
angle of zero is placed between source 1 and the photometer. How
does the distance of the first source (from the photometer) r1
compare to the distance of the second source r2 if the two sides of
the photometer have the same brightness?
a. r2 = 0.6 r1
b. r2 = 0.8 r1
c. r2 =...
Assign the peak for both of the IR spectrum below and identify what compound is this...
Assign the peak for both of the IR spectrum below and identify
what compound is this and draw the structure of the compound.
100 90 80 70 W 60 50 % Transmission 40 30 - 923 1677 1285 20 - 702 10 0 4000 3500 3000 2500 2000 1500 1000 Wavenumber (cm) 100 80 m % Transmission 1660 1209 1438 886 757 0 4000 3500 3000 2500 1500 1000 2000 Wavenumber (cm*')
1. An object is undergoing simple harmonic motion with a period of 9.45 seconds and an...
1. An object is undergoing simple harmonic motion with a period of 9.45 seconds and an amplitude of A = 0.110 meters. At t = 0 the object is at x = 0.00 meters and is moving in the positive direction. How far from the equilibrium position is the object when t = 6.00 seconds? 2. Write an equation that correctly describes a traveling wave disturbance y(x,t) propagating in the +x direction that satisfies the following conditions: a. The maximum...
Printed (Chinese) Name: THỨ ID: Problem 6 (10 points) Class: A company needs to locate three...
Printed (Chinese) Name: THỨ ID: Problem 6 (10 points) Class: A company needs to locate three departments (X, Y, and Z) in the three areas (I, II, and III) of a new facility. They want to minimize interdepartmental transportation costs, which are expected to be 3.50 per load per meter moved. An analyst has prepared the following distances and flow matrices: Distances (meters) X = I Y I From/To IX IN III X= I Y=0 - 10 - 20 I...
what is this unknown? and how ? 1-pentene , hexanol , propinaldehyde , cyclohexanone , cyclopentanone...
what is this unknown? and how ?
1-pentene , hexanol , propinaldehyde , cyclohexanone ,
cyclopentanone , sec - butanol , propionic acid , t-butylamine ,
hexanal , andcyclohexene .
% Transmittance 1723.48 y 125 120 115 110 105 100 95 06 85 80 75 70 65 60 55 50 45 40 35 30 25 3000 2000 1500 1000 500 2500 Wavenumbers (cm-1) 4000 3500
What are the peaks that prove this compound is methyl m-nitrobenzoate 10:48/1304 14 %Transmittance 3851.11 3445.36 3...
What are the peaks that prove this compound is methyl
m-nitrobenzoate
10:48/1304 14 %Transmittance 3851.11 3445.36 3005.83 1715.77 1652.26 1532 15 1440 77 1366 45 1350.47 1289.19 1266.98 1219.52 1193.51 1134.00 1072.71 978 61 924.73 880.45 824.50 778.11 721.07 528.98 457 29 419.05 Akration 140 le 130 120 110- 100 90 80- 70 60 50 40 30 1500 1000 500 2500 Wavenumbers (cm-1) 3500 3000 2000 4000 Thu Oct 24 11:36.09 2019 (GMT-04.00) FIND PEAKS Spectrum test for Region Absolute...
Iridium-192 is one radioisotope used in brachytherapy, in which a radioactive source is placed inside a...
Iridium-192 is one radioisotope used in brachytherapy, in which a radioactive source is placed inside a patient's body to treat cancer. Brachytherapy allows the use of a higher than normal dose to be placed near the tumor while lowering the risk of damage to healthy tissue. Iridium-192 is often used in the head or breast. Use the radioactive decay curve of iridium-192 to answer the three questions. 100 . 90 - 80 20 Sample remaining (5) SO 30 10 0...
Aradio antenna emits EM waves at a frequency of 100 MHz and intensity of 0.2 W/m2. What is the photon density in one cubic meter of the beam? 1.0E 12 photons/cubic meter 1.0E 16 photons/cubic meter 1.0E20 photons/cubic meter 1.4E31 photons/cubic meter 6.1E32 photons/cubic meter Question 11 5 pts A rotating generator has a square planar coil consisting of 100 turns. The coil rotates 60 times per second in a magnetic field of 1.25 T and yields a peak output...
Problem 3: Intensity from a distant light source (25 points) Consider an isotropic light source that emits EM radiation with wavelength A and power Po. (Isotropic- uniformly in all directions). In addition, consider a detector with area a, facing the source which is a long distance R away. (a) Derive a formula for the amplitude of the electric field at the detector (b) Derive a formula for the number of photons per unit time that strike the detector. What is...
1. In the figure, the neutral density filter is set at 100%
transmittance on the side of source 2, The polarizers set at an
angle of zero is placed between source 1 and the photometer. How
does the distance of the first source (from the photometer) r1
compare to the distance of the second source r2 if the two sides of
the photometer have the same brightness?
a. r2 = 0.6 r1
b. r2 = 0.8 r1
c. r2 =...
Assign the peak for both of the IR spectrum below and identify
what compound is this and draw the structure of the compound.
100 90 80 70 W 60 50 % Transmission 40 30 - 923 1677 1285 20 - 702 10 0 4000 3500 3000 2500 2000 1500 1000 Wavenumber (cm) 100 80 m % Transmission 1660 1209 1438 886 757 0 4000 3500 3000 2500 1500 1000 2000 Wavenumber (cm*')
Printed (Chinese) Name: THỨ ID: Problem 6 (10 points) Class: A company needs to locate three departments (X, Y, and Z) in the three areas (I, II, and III) of a new facility. They want to minimize interdepartmental transportation costs, which are expected to be 3.50 per load per meter moved. An analyst has prepared the following distances and flow matrices: Distances (meters) X = I Y I From/To IX IN III X= I Y=0 - 10 - 20 I...
what is this unknown? and how ?
1-pentene , hexanol , propinaldehyde , cyclohexanone ,
cyclopentanone , sec - butanol , propionic acid , t-butylamine ,
hexanal , andcyclohexene .
% Transmittance 1723.48 y 125 120 115 110 105 100 95 06 85 80 75 70 65 60 55 50 45 40 35 30 25 3000 2000 1500 1000 500 2500 Wavenumbers (cm-1) 4000 3500
What are the peaks that prove this compound is methyl
m-nitrobenzoate
10:48/1304 14 %Transmittance 3851.11 3445.36 3005.83 1715.77 1652.26 1532 15 1440 77 1366 45 1350.47 1289.19 1266.98 1219.52 1193.51 1134.00 1072.71 978 61 924.73 880.45 824.50 778.11 721.07 528.98 457 29 419.05 Akration 140 le 130 120 110- 100 90 80- 70 60 50 40 30 1500 1000 500 2500 Wavenumbers (cm-1) 3500 3000 2000 4000 Thu Oct 24 11:36.09 2019 (GMT-04.00) FIND PEAKS Spectrum test for Region Absolute...
Iridium-192 is one radioisotope used in brachytherapy, in which a radioactive source is placed inside a patient's body to treat cancer. Brachytherapy allows the use of a higher than normal dose to be placed near the tumor while lowering the risk of damage to healthy tissue. Iridium-192 is often used in the head or breast. Use the radioactive decay curve of iridium-192 to answer the three questions. 100 . 90 - 80 20 Sample remaining (5) SO 30 10 0...
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