The charge on an electron is −1.6×10−19 c. the charge on a proton is equal in magnitude, but positive. the electron's mass is 9.11×10−31 kg.

a. in an atom, the electron and the proton and electron are seperated by about 0.5 angstroms, 5.0×10−11 m. what is the acceleration of an electron of an electron in an atom?

b. what is the electric field magnitude due to the proton at the electron's location?

c. the "dielectric strength" is the electric field magnitude at which a substance begins to spark. air begins to conduct or spark when the electric field is about 3 million n/c. how does this electric field compare to the magnitude of the electric field in an atom?

1. the electric field in an atom is much less than the dielectric strength of air
2. the electric field in an atom is much greater than the dielectric strength of air
3. the electric field in an atom is within an order of magnitude (a factor of 10) of the dielectric strength of air

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.)

Abike rider starts from rest and accelerates 28.0 meters down a slope in 5.00 seconds. what is her acceleration? select one: a. 3.21 m/sec2 b. 1.75 m/sec2 c. 9.80 m/sec2 d. 2.24 m/sec2

Aspring has a natural length of 8 m. if a 12-n force is required to keep it stretched to a length of 10 m, how much work w is required to stretch it from 8 m to 16 m? (round your answer to two decimal places.)