If the work function of a material is such that red light of wavelength 700 nm just barely initiates the photoelectric effect, what must the maximum kinetic energy of ejected electrons be when violet light of wavelength 400 nm illuminates the material?
express your answer with the appropriate units.
kmax = j
Answers: 2
Physics, 22.06.2019 22:00
Acar is traveling 35 mph on a smooth surface . if a balanced force is applied to the car what happens?
Answers: 3
Physics, 22.06.2019 22:10
7. see worksheet 1 for values of variables x1, x2 and x3 and answer the following questions: a. for each variable find the mean, median, coefficient of skewness, range and population standard deviation. b. compared to variable x1, how are the mean and median affected by extreme values (outliers) seen in x2 and x3. c. is the median or mean the better measure of location for x2 and x3? explain. d. explain the differences in the magnitudes of the skewness coefficients for the three variables. e. what is the relationship between the range and standard deviation looking across the three variables?
Answers: 1
Physics, 22.06.2019 22:20
A10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kg piece of lead, which is much denser than aluminum. which one has the greater buoyant force on it? explain. b - the aluminum a) both have the same buoyant force. b) the aluminum c) the lead d) it cannot be determined without knowing their volumes.
Answers: 1
Physics, 22.06.2019 23:30
A6.0-kilogram cart initially traveling at 4.0 meters per second east accelerates uniformly at 0.50 meter per second squared east for 3.0 seconds. what is the speed of the cart at the end of this 3.0 second interval? (1) 1.5 m/s (3) 3.0 m/s (2) 5.5 m/s (4) 7.0 m/s
Answers: 1
If the work function of a material is such that red light of wavelength 700 nm just barely initiates...
Physics, 11.11.2021 14:00
Biology, 11.11.2021 14:00
History, 11.11.2021 14:00
Social Studies, 11.11.2021 14:00
Mathematics, 11.11.2021 14:00
Mathematics, 11.11.2021 14:00
Mathematics, 11.11.2021 14:00
Mathematics, 11.11.2021 14:00
Computers and Technology, 11.11.2021 14:00
Social Studies, 11.11.2021 14:00
Geography, 11.11.2021 14:00
Physics, 11.11.2021 14:00