Homework Help is Here – Start Your Trial Now!
Science
Physics
1.86 O Hl 20% | 2:39 PM K/s iv. What exposure time is required for an equivalent dose of 200 rem? B. A laser with power output of 2.0 mW at a wavelength of 400 nm is projected onto a Calcium metal. The binding energy is 2.31 ev. i. How many electrons per second are ejected? i. What power is carried away by the electrons? C. A hypodermic needle of diameter 1.19 mm and length 50 mm is used to withdraw blood from a patient? How long would it take for 500 ml of blood to be taken? Assume blood viscosity of 0.0027 Pa.s and a pressure in the vein of 1.900 Pa. D. A person with lymphoma receives a dose of 35 gray in the form of gamma radiation during grams of cancerous lymphatic tissue. course of radiotherapy. Most of this dose is absorbed in 18 i. How much energy is absorbed by the cancerous tissue? If this treatment consists of five 15-minute sessions per week over the course of 5 weeks and just one percent of the gamma photons in the gamma ray beam are absorbed, what is the power of the aamma ray beam? i. If the gamma ray beam consists of just 0.5 percent of the photons emitted by the gamma source, each of which has an energy of 0.03 MeV, what is the activity, in Curies, of the gamma ray source? ii. E. A water heater that is connected across the terminals of a 15.0 V power supply is able to heat 250 ml of water from room temperature of 25°C to boiling point in 45.0 secs. What is the resistance of the heater? The density of water is 1,000 kg/m? and the specific heat capacity of water is 4,200 J/kg/°C. QUESTION FIVE A. When light of wavelength 250 nm is incident on a metal surface, the maximum speed of the photoelectrons is 4.0 x 105 m/s, what is the work function of the metal in electron volts? B. Assume that a 100-W light bulb gives off 2.50% of its energy as visible light of wavelength 500 nm. How many photons of visible light are given off in 1.0 min? Page 6 of 7

1.86 O Hl 20% | 2:39 PM K/s iv. What exposure time is required for an equivalent dose of 200 rem? B. A laser with power output of 2.0 mW at a wavelength of 400 nm is projected onto a Calcium metal. The binding energy is 2.31 ev. i. How many electrons per second are ejected? i. What power is carried away by the electrons? C. A hypodermic needle of diameter 1.19 mm and length 50 mm is used to withdraw blood from a patient? How long would it take for 500 ml of blood to be taken? Assume blood viscosity of 0.0027 Pa.s and a pressure in the vein of 1.900 Pa. D. A person with lymphoma receives a dose of 35 gray in the form of gamma radiation during grams of cancerous lymphatic tissue. course of radiotherapy. Most of this dose is absorbed in 18 i. How much energy is absorbed by the cancerous tissue? If this treatment consists of five 15-minute sessions per week over the course of 5 weeks and just one percent of the gamma photons in the gamma ray beam are absorbed, what is the power of the aamma ray beam? i. If the gamma ray beam consists of just 0.5 percent of the photons emitted by the gamma source, each of which has an energy of 0.03 MeV, what is the activity, in Curies, of the gamma ray source? ii. E. A water heater that is connected across the terminals of a 15.0 V power supply is able to heat 250 ml of water from room temperature of 25°C to boiling point in 45.0 secs. What is the resistance of the heater? The density of water is 1,000 kg/m? and the specific heat capacity of water is 4,200 J/kg/°C. QUESTION FIVE A. When light of wavelength 250 nm is incident on a metal surface, the maximum speed of the photoelectrons is 4.0 x 105 m/s, what is the work function of the metal in electron volts? B. Assume that a 100-W light bulb gives off 2.50% of its energy as visible light of wavelength 500 nm. How many photons of visible light are given off in 1.0 min? Page 6 of 7

Inquiry into Physics
Inquiry into Physics
8th Edition
ISBN:9781337515863
Author:Ostdiek
Publisher:Ostdiek
Chapter11: Nuclear Physics
Section: Chapter Questions
Problem 11Q
See similar textbooks
icon
Related questions
Question
1.86 O Hl 20% | 2:39 PM K/s iv. What exposure time is required for an equivalent dose of 200 rem? B. A laser with power output of 2.0 mW at a wavelength of 400 nm is projected onto a Calcium metal. The binding energy is 2.31 ev. i. How many electrons per second are ejected? i. What power is carried away by the electrons? C. A hypodermic needle of diameter 1.19 mm and length 50 mm is used to withdraw blood from a patient? How long would it take for 500 ml of blood to be taken? Assume blood viscosity of 0.0027 Pa.s and a pressure in the vein of 1.900 Pa. D. A person with lymphoma receives a dose of 35 gray in the form of gamma radiation during grams of cancerous lymphatic tissue. course of radiotherapy. Most of this dose is absorbed in 18 i. How much energy is absorbed by the cancerous tissue? If this treatment consists of five 15-minute sessions per week over the course of 5 weeks and just one percent of the gamma photons in the gamma ray beam are absorbed, what is the power of the aamma ray beam? i. If the gamma ray beam consists of just 0.5 percent of the photons emitted by the gamma source, each of which has an energy of 0.03 MeV, what is the activity, in Curies, of the gamma ray source? ii. E. A water heater that is connected across the terminals of a 15.0 V power supply is able to heat 250 ml of water from room temperature of 25°C to boiling point in 45.0 secs. What is the resistance of the heater? The density of water is 1,000 kg/m? and the specific heat capacity of water is 4,200 J/kg/°C. QUESTION FIVE A. When light of wavelength 250 nm is incident on a metal surface, the maximum speed of the photoelectrons is 4.0 x 105 m/s, what is the work function of the metal in electron volts? B. Assume that a 100-W light bulb gives off 2.50% of its energy as visible light of wavelength 500 nm. How many photons of visible light are given off in 1.0 min? Page 6 of 7
Transcribed Image Text:1.86 O Hl 20% | 2:39 PM K/s iv. What exposure time is required for an equivalent dose of 200 rem? B. A laser with power output of 2.0 mW at a wavelength of 400 nm is projected onto a Calcium metal. The binding energy is 2.31 ev. i. How many electrons per second are ejected? i. What power is carried away by the electrons? C. A hypodermic needle of diameter 1.19 mm and length 50 mm is used to withdraw blood from a patient? How long would it take for 500 ml of blood to be taken? Assume blood viscosity of 0.0027 Pa.s and a pressure in the vein of 1.900 Pa. D. A person with lymphoma receives a dose of 35 gray in the form of gamma radiation during grams of cancerous lymphatic tissue. course of radiotherapy. Most of this dose is absorbed in 18 i. How much energy is absorbed by the cancerous tissue? If this treatment consists of five 15-minute sessions per week over the course of 5 weeks and just one percent of the gamma photons in the gamma ray beam are absorbed, what is the power of the aamma ray beam? i. If the gamma ray beam consists of just 0.5 percent of the photons emitted by the gamma source, each of which has an energy of 0.03 MeV, what is the activity, in Curies, of the gamma ray source? ii. E. A water heater that is connected across the terminals of a 15.0 V power supply is able to heat 250 ml of water from room temperature of 25°C to boiling point in 45.0 secs. What is the resistance of the heater? The density of water is 1,000 kg/m? and the specific heat capacity of water is 4,200 J/kg/°C. QUESTION FIVE A. When light of wavelength 250 nm is incident on a metal surface, the maximum speed of the photoelectrons is 4.0 x 105 m/s, what is the work function of the metal in electron volts? B. Assume that a 100-W light bulb gives off 2.50% of its energy as visible light of wavelength 500 nm. How many photons of visible light are given off in 1.0 min? Page 6 of 7
Expert Solution
steps

Step by step

Solved in 3 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Inquiry into Physics
Inquiry into Physics
Physics
ISBN:
9781337515863
Author:
Ostdiek
Publisher:
Cengage
Modern Physics
Modern Physics
Physics
ISBN:
9781111794378
Author:
Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:
Cengage Learning
College Physics
College Physics
Physics
ISBN:
9781938168000
Author:
Paul Peter Urone, Roger Hinrichs
Publisher:
OpenStax College
Principles of Physics: A Calculus-Based Text
Principles of Physics: A Calculus-Based Text
Physics
ISBN:
9781133104261
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
University Physics Volume 3
University Physics Volume 3
Physics
ISBN:
9781938168185
Author:
William Moebs, Jeff Sanny
Publisher:
OpenStax
SEE MORE TEXTBOOKS