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Electrons are used to produce x-rays by allowing a beam of electrons to strike a heavy metal ...

Electrons are used to produce x-rays by allowing a beam of electrons to strike a heavy metal ...

[html]Electrons are used to produce x-rays by allowing a beam of electrons to strike a heavy metal surface. What is true about the wavelengths of the bremsstrahlung x-rays that are produced in such a situation?

▸ There are a few specific wavelengths that are produced for a given metal and their wavelengths are independent of the energy of the electron beam used.

▸

Physics   ssi15   30   naj2008h   1 months ago

Electrons are used to produce x-rays by allowing a beam of electrons to strike a heavy metal ...

Electrons are used to produce x-rays by allowing a beam of electrons to strike a heavy metal ...

Electrons are used to produce x-rays by allowing a beam of electrons to strike a heavy metal surface. When the speed of the electrons in the beam is increased, this produces

▸ x-rays with higher energies

▸ x-rays with longer wavelengths

▸ faster x-rays

▸ more x-rays per unit time

Physics   mars03   27   dmp7474   1 months ago

Electrons are used to produce x-rays by allowing a beam of electrons to strike a heavy metal ...

Electrons are used to produce x-rays by allowing a beam of electrons to strike a heavy metal ...

Electrons are used to produce x-rays by allowing a beam of electrons to strike a heavy metal surface. When the intensity of the electron beam is increased, this produces

▸ x-rays with longer wavelengths.

▸ x-rays with higher energy.

▸ more x-rays per unit time.

▸ faster x-rays.

Physics   unrendezvous   36   windytodai   1 months ago

Electrons are accelerated through a potential difference V and then strike a dense target. In the ...

Electrons are accelerated through a potential difference V and then strike a dense target. In the ...

Electrons are accelerated through a potential difference V and then strike a dense target. In the x-rays that are produced,

▸ the maximum wavelength depends on V.

▸ the wavelengths of the characteristic peaks depend on V.

▸ the minimum wavelength depends on V.

▸ the speed of the x-rays depends on V.

Physics   rventurec   30   cryzazn   1 months ago

Electrons are accelerated through a potential difference of 90.0 kV and directed at a tungsten ...

Electrons are accelerated through a potential difference of 90.0 kV and directed at a tungsten ...

Electrons are accelerated through a potential difference of 90.0 kV and directed at a tungsten target to produce x-rays. What is the cutoff frequency of the x-ray spectrum produced?

▸ 2.18 × 1019 Hz

▸ 2.10 × 1019 Hz

▸ 1.17 × 1021 Hz

▸ 9.25 × 1021 Hz

▸ 6.20 × 1015 Hz

Physics   Katseye   20   Redhawt75   1 months ago

Electrons are accelerated through a potential difference of 90.0 kV and directed at a tungsten ...

Electrons are accelerated through a potential difference of 90.0 kV and directed at a tungsten ...

Electrons are accelerated through a potential difference of 90.0 kV and directed at a tungsten target to produce x-rays. What is the shortest wavelength of the x-rays produced?

▸ 669 pm

▸ 508 pm

▸ 72.6 pm

▸ 13.8 pm

▸ 14.3 pm

Physics   mombefor78   19   thevoicexxx   1 months ago

Dark lines in the spectra observed from stellar atmospheres indicate that

Dark lines in the spectra observed from stellar atmospheres indicate that

[html]Dark lines in the spectra observed from stellar atmospheres indicate that

▸ atoms that would produce the missing frequency bands aren’t present in the atmosphere.

▸ atoms are present in the atmosphere that are absorbing photons of those frequencies.

▸ atoms are present in the atmosphere that are emitting photons of those frequencies.

▸ atoms

Physics   brettlaw   27   kayekalico   1 months ago

An x-ray tube produces photons with wavelengths down to a minimum of 0.0827 nm. What is the ...

An x-ray tube produces photons with wavelengths down to a minimum of 0.0827 nm. What is the ...

An x-ray tube produces photons with wavelengths down to a minimum of 0.0827 nm. What is the accelerating potential for this tube?

▸ 123 kV

▸ 9.22 kV

▸ 8.00 kV

▸ 10.0 kV

▸ 15.0 kV

Physics   pjstaud   23   Kocojda   1 months ago

An x-ray photon with wavelength 15.0 pm is scattered through 84.0 by an electron. What is the ...

An x-ray photon with wavelength 15.0 pm is scattered through 84.0 by an electron. What is the ...

An x-ray photon with wavelength 15.0 pm is scattered through 84.0° by an electron. What is the resulting kinetic energy of the electron?

▸ 568 keV

▸ 59.5 keV

▸ 30.1 keV

▸ 15.0 keV

▸ 10.5 keV

Physics   vlademirsimon   18   sbbalt   1 months ago

An x-ray photon with wavelength 15.0 pm is scattered at 84.0 by an electron. What is the wavelength ...

An x-ray photon with wavelength 15.0 pm is scattered at 84.0 by an electron. What is the wavelength ...

An x-ray photon with wavelength 15.0 pm is scattered at 84.0° by an electron. What is the wavelength of the scattered photon?

▸ 31.0 pm

▸ 14.9 pm

▸ 1.57 pm

▸ 17.2 pm

▸ 12.8 pm

Physics   capriciossa   19   jarste123   1 months ago

An x-ray photon of energy 3.20 10-15 J has what wavelength?

An x-ray photon of energy 3.20 10-15 J has what wavelength?

An x-ray photon of energy 3.20 × 10-15 J has what wavelength?

▸ 200 nm

▸ 62.1 pm

▸ 32.7 nm

▸ 5.73 pm

▸ 1.07 nm

Physics   rbayla   23   sharonfaith31   1 months ago

An electron passing close to a target nucleus slows and radiates away some of its energy. What is ...

An electron passing close to a target nucleus slows and radiates away some of its energy. What is ...

An electron passing close to a target nucleus slows and radiates away some of its energy. What is the process called?

▸ blackbody radiation

▸ photoelectric effect

▸ stimulated emission

▸ bremsstrahlung

▸ Compton scattering

Physics   pgakui   20   nilabmirzada   1 months ago

An electron and positron, each having kinetic energy 10 MeV, annihilate and produce two photons. ...

An electron and positron, each having kinetic energy 10 MeV, annihilate and produce two photons. ...

An electron and positron, each having kinetic energy 10 MeV, annihilate and produce two photons. What is the wavelength of each photon?

▸ 0.124 pm

▸ 0.118 pm

▸ 0.248 pm

▸ 0.062 pm

▸ need more information

Physics   omaralnatour   24   DPhoenix   1 months ago

According to the Bohr model, what is the potential energy of an electron in the ground state of the ...

According to the Bohr model, what is the potential energy of an electron in the ground state of the ...

According to the Bohr model, what is the potential energy of an electron in the ground state of the hydrogen atom?

▸ 0

▸ −13.6 eV

▸ −27.2 eV

▸ 13.6 eV

▸ 27.2 eV

Physics   Nikolas   27   smiller94107   1 months ago

According to the Bohr model, what is the kinetic energy of an electron in the ground state of hydrogen?

According to the Bohr model, what is the kinetic energy of an electron in the ground state of hydrogen?

According to the Bohr model, what is the kinetic energy of an electron in the ground state of hydrogen?

▸ 0

▸ 13.6 eV

▸ 6.80 eV

▸ 27.2 eV

▸ 1.88 eV

Physics   tudanglong   20   kimtran   1 months ago

According to the Bohr model, the kinetic energy of an electron in a stationary state in hydrogen is ...

According to the Bohr model, the kinetic energy of an electron in a stationary state in hydrogen is ...

According to the Bohr model, the kinetic energy of an electron in a stationary state in hydrogen is what factor times its potential energy?

▸ 1

▸ −1

▸ 1/2

▸ −1/2

▸ 2

Physics   anhtuan   23   johnmilton   1 months ago

A quantized item

A quantized item

A quantized item

▸ has possible values that are limited to a discrete set.

▸ applies only to very small objects.

▸ applies only to very slow-moving objects.

▸ can be any integer value.

Physics   Anthonyling   24   finley07   1 months ago

A problem with the classical theory for radiation from a blackbody was that the theory predicted too ...

A problem with the classical theory for radiation from a blackbody was that the theory predicted too ...

A problem with the classical theory for radiation from a blackbody was that the theory predicted too much radiation in what range of wavelengths?

▸ ultraviolet

▸ visible

▸ infrared

▸ microwave

▸ radio

Physics   tweb28   21   RobnHood   1 months ago

A photon that is emitted during a transition in hydrogen from the n = 27 state to the n = 2 state is ...

A photon that is emitted during a transition in hydrogen from the n = 27 state to the n = 2 state is ...

A photon that is emitted during a transition in hydrogen from the n = 27 state to the n = 2 state is in which of the following series?

▸ Lyman

▸ Balmer

▸ Paschen

▸ Brackett

▸ All of these choices are correct.

Physics   nsdq007   23   Nfernandez1991   1 months ago

A photon of frequency 6.40 1014 Hz has what energy?

A photon of frequency 6.40 1014 Hz has what energy?

A photon of frequency 6.40 × 1014 Hz has what energy?

▸ 1.26 eV

▸ 1.93 eV

▸ 2.11 eV

▸ 2.65 eV

▸ 3.17 eV

Physics   rhialways659   22   nancy123   1 months ago

A photocell is a device that operates using the photoelectric effect. What metal would enable a ...

A photocell is a device that operates using the photoelectric effect. What metal would enable a ...

A photocell is a device that operates using the photoelectric effect. What metal would enable a photocell to be operated using visible light?

▸ manganese (φ = 4.1 eV)

▸ lanthanum (φ = 3.5 eV)

▸ cesium (φ = 1.95 eV)

▸ beryllium (φ = 4.98 eV)

Physics   gyoku2302   21   lpants   1 months ago

A laser beam emits 2.5 1020 photons per second with a wavelength of 663 nm. What is the power ...

A laser beam emits 2.5 1020 photons per second with a wavelength of 663 nm. What is the power ...

A laser beam emits 2.5 × 1020 photons per second with a wavelength of 663 nm. What is the power output of this laser?

▸ 51 mW

▸ 67 mW

▸ 51 W

▸ 75 W

▸ 93 W

Physics   Jbranson87   21   jd1044   1 months ago

A Compton scattering experiment is performed in which the scattered photons have a minimum energy of ...

A Compton scattering experiment is performed in which the scattered photons have a minimum energy of ...

A Compton scattering experiment is performed in which the scattered photons have a minimum energy of 17.2 keV. What was the incident energy of the photons used in this experiment?

▸ 16.6 keV

▸ 18.4 keV

▸ 16.1 keV

▸ 17.2 keV

Physics   rsteel   16   duhello   1 months ago

A 2.00 eV photon has what frequency?

A 2.00 eV photon has what frequency?

A 2.00 eV photon has what frequency?

▸ 6.40 × 1014 Hz

▸ 1.86 × 1014 Hz

▸ 3.15 × 1014 Hz

▸ 7.21 × 1014 Hz

▸ 4.84 × 1014 Hz

Physics   Bpringle2000   20   studytime   1 months ago

A 100 keV photon undergoes Compton scattering. What is the greatest amount of kinetic energy that ...

A 100 keV photon undergoes Compton scattering. What is the greatest amount of kinetic energy that ...

A 100 keV photon undergoes Compton scattering. What is the greatest amount of kinetic energy that can be given to the electron in this process?

▸ 100 keV

▸ 71.8 keV

▸ 83.6 keV

▸ 28.1 keV

▸ 16.4 keV

Physics   mdensmore   25   LeonKennedyS   1 months ago

A 1.00 mW laser produces photons of wavelength 633 nm. How many photons per second does the laser emit?

A 1.00 mW laser produces photons of wavelength 633 nm. How many photons per second does the laser emit?

A 1.00 mW laser produces photons of wavelength 633 nm. How many photons per second does the laser emit?

▸ 1.58 × 103

▸ 1.06 × 1010

▸ 3.19 × 1015

▸ 6.24 × 1015

▸ 1.60 × 1019

Physics   kristen299   16   egidrarc   1 months ago

An internal operating issue in project screening and selection is:

An internal operating issue in project screening and selection is:

An internal operating issue in project screening and selection is:
A) The chance that the firm's goodwill will suffer due to the quality of the finished project.
B) Patent protection.
C) Change in physical environment.
D) Expected return on investment.

Business   Louie928   332   5   flammable   1 months ago

The cultural rules that allow our closest biological relatives (chimpanzees) to be used as objects ...

The cultural rules that allow our closest biological relatives (chimpanzees) to be used as objects ...

The cultural rules that allow our closest biological relatives (chimpanzees) to be used as objects of biomedical research are a product of a long, evolutionary history.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Anthropology   missmaggoo   257   4   SPerroud   1 months ago

Which of the following does NOT characterize industrial agriculture?

Which of the following does NOT characterize industrial agriculture?

Which of the following does NOT characterize industrial agriculture?
a. specialization of crop production
b. a tendency toward competition among producers
c. overproduction of farm products
d. better quality diets

Anthropology   Usher1   540   5   Microman22   1 months ago

In the horticultural society of the Yanomamo in Brazil, men do all of the farming and as a result __

In the horticultural society of the Yanomamo in Brazil, men do all of the farming and as a result __

In the horticultural society of the Yanomamo in Brazil, men do all of the farming and as a result __________.
a. women are free to be craft specialists
b. women have larger numbers of children
c. women have a very low social status
d. women are more often warriors than in other horticultural societies

Anthropology   Usher1   618   7   Microman22   1 months ago

Duane borrowed $3000 from his grandmother five years ago. The interest on the loan was to be 5% ...

Duane borrowed $3000 from his grandmother five years ago. The interest on the loan was to be 5% ...

Duane borrowed $3000 from his grandmother five years ago. The interest on the loan was to be 5% compounded semiannually for the first three years, and 6% compounded monthly thereafter. If he made a $1000 payment 2½ years ago, what is the amount now owed on the loan?

Mathematics   islandgurl   110   3   bio_man   1 months ago

Ross Corporation produces a single product. The company has direct materials costs of $8 per unit, ...

Ross Corporation produces a single product. The company has direct materials costs of $8 per unit, ...

[html]Ross Corporation produces a single product. The company has direct materials costs of $8 per unit, direct labor costs of $6 per unit, and manufacturing overhead of $10 per unit. Sixty percent of the manufacturing overhead is for fixed costs. In addition, variable selling and administrative expenses are $2 per unit, and fixed selling and administrative expenses are $3 per un

Accounting   seraphel   176   3   moyo966   1 months ago

Which of the following is the reason that meat is highly valued by Ju/’hoansi people?

Which of the following is the reason that meat is highly valued by Ju/’hoansi people?

Which of the following is the reason that meat is highly valued by Ju/’hoansi people?
a. Meat is a less highly concentrated source of protein than vegetable foods.
b. Uncertain success at hunting means that meat is a rarer food than vegetable resources.
c. Meat is not shared frequently in the Ju/’hoansi society.
d. The Ju/’hoansi prefer the taste of meat to the t

Anthropology   Usher1   562   5   Microman22   1 months ago

Dylan bought a new Ford truck for $28,000. Dylan made a down payment of $6,000 and paid $390 monthly

Dylan bought a new Ford truck for $28,000. Dylan made a down payment of $6,000 and paid $390 monthly

Dylan bought a new Ford truck for $28,000. Dylan made a down payment of $6,000 and paid $390 monthly for 70 months. What's the total finance charge?

Finance   bees13   912   3   Christine Brockett   1 months ago

Erythromycin is a basic antimicrobial with pKb = 5.2. A 1.0 × 10-3 M solution of erythromycin has a

Erythromycin is a basic antimicrobial with pKb = 5.2. A 1.0 × 10-3 M solution of erythromycin has a

Erythromycin is a basic antimicrobial with pKb = 5.2. A 1.0 × 10-3 M solution of erythromycin has a pH of ________ and a ________ percent ionization.

Chemistry   Whelan   658   3   Anonymous    1 months ago

Please help with the following questions - Auto-Mechanics (Part 6)

Please help with the following questions - Auto-Mechanics (Part 6)

1.   Technician A says that nonemission-related codes that make the malfunction indicator lamp (MIL) illuminate are called "Type A" codes. Technician B says that emission-related codes that illuminate the MIL after the first fault are called "Type A" codes. Who is correct?
     
A. Neither Technician A nor B
B. Technician B
C.

12

Electrical Engineering   aantonopoulos   2580   15   Dwayne Philpot   1 months ago

Which answer best describes the musical texture heard in the listening excerpt?

Which answer best describes the musical texture heard in the listening excerpt?

Which answer best describes the musical texture heard in the listening excerpt?
 
  a. homophonic
  b. monophonic
  c. imitative counterpoint
  d. free counterpoint
  e. sequential

Music Studies   HecKel   274   2   Anonymous    1 months ago

All of the following are considered as three of the most important contextual issues impacting ...

All of the following are considered as three of the most important contextual issues impacting ...

All of the following are considered as three of the most important contextual issues impacting project management EXCEPT:
A) Culture.
B) Strategy.
C) Organizational structure.
D) Information systems.

Management   batesmegan1995   66   3   Emkei Tastes   1 months ago

One consequence of conceptual development that proceeds with a problem that is poorly understood is:

One consequence of conceptual development that proceeds with a problem that is poorly understood is:

One consequence of conceptual development that proceeds with a problem that is poorly understood is:
A) Problem restatement.
B) Problem clarification.
C) Task confusion.
D) Cost overruns.

Management   Louie928   647   6   Anonymous    1 months ago

Conceptual development for a project concludes with:

Conceptual development for a project concludes with:

Conceptual development for a project concludes with:
A) Project objectives.
B) Team dissolution.
C) Alternative analysis.
D) Project delivery.

Management   Louie928   637   5   Anonymous    1 months ago