Answer:
An example of a mixture would be salt water
It is trajectory acceleration. A friction track is a device to study motion in low friction environments, I believe. Does this help?
Answer:
Year wise Percentage of Attendance in Senior Secondary Schools of India The given graph shows that the percentage of attendance is recorded with a gap of 5 years. The given table depicts, across time, from the year 2000 to 2015. During the 15 years, there is a steady and healthy increase in the percentage of attendance in ll the four types of schools. The increase in Convent-run schools is much higher compared to the other three types of schools. Initially, the village schools show a noticeably poor percentage of attendance and the General English Medium schools show less percentage of attendance compared to the Convent-run schools. All in all the continuous higher percentage indicates that the relevant authorities are learned about improving the education of the country. The poor attendance in the 2010 in the Government-run village schools shows a big leap in the year 2015, indicating that the Government must have taken an effective measure to improve literacy in the villages. Noteworthy increase in the attendance indicates solid infrastructure and focus towards the healthy growth of the corresponding authorities.
Explanation:
hope it helps you<3
Answer:
2.30 eV
Explanation:
Some details of the problem are missing:
"Light of wavelength 540 nm is required to extract electrons from sodium. What is the work function of sodium?"
The equation that describes the photoelectric effect is
where:
is the energy of the incoming photon, with
is Planck constant
is the speed of light
is the work function of the material
K is the maximum kinetic energy of the emitted photoelectrons
The minimum energy needed by the photons to extract the photoelectrons is that for which the kinetic energy is zero, so
K = 0
Therefore we have
In this problem, we know that the wavelength of the incoming light is
Therefore, we can find the work function of sodium:
And converting into electronvolts,
