In 1913, henry moseley systematically studied the x-ray spectra of various elements. he made use of bragg's discovery of x-ray diffraction to calculate the wavelengths of the spikes seen in the spectrum of x-rays emitted when high-energy electrons impact a target. he then found an empircal law relating the frequency f of the most intense x-ray spike--known as the k_{\alpha} line--to the atomic number z of the element. that empirical law, known as moseley's law, is

f=(2.48\times10^{15}\; {\rm hz})(z-1)^2.

Use the frequency histogram to complete the following parts. ​(a) identify the class with the​ greatest, and the class with the​ least, relative frequency. ​(b) estimate the greatest and least relative frequencies. ​(c) describe any patterns with the data. female fibula lengths 30.5 31.5 32.5 33.5 34.5 35.5 36.5 37.5 38.5 39.5 0 0.05 0.1 0.15 0.2 0.25 length (in centimeters) relative frequency a histogram titled "female fibula lengths" has a horizontal axis labeled "length in centimeters" from 30.5 to 39.5 in increments of 1 and a vertical axis labeled "relative frequency" from 0 to 0.25 in increments of 0.05. the histogram contains vertical bars of width 1, where one vertical bar is centered over each of the horizontal axis tick marks. the approximate heights of the vertical bars are listed as follows, where the label is listed first and the approximate height is listed second: 30.5, 0.02; 31.5, 0.04; 32.5, 0.05; 33.5, 0.13; 34.5, 0.22; 35.5, 0.25; 36.5, 0.13; 37.5, 0.06; 38.5, 0.09; 39.5, 0.01. ​(a) the class with the greatest relative frequency is nothing to nothing centimeters. ​(type integers or decimals. do not round. use ascending​ order.)

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?