MochiChoji MochiChoji

15-10-2022
Chemistry

contestada

When an electron beam strikes a block of
copper, x-rays of frequency 2.74 × 10^19 Hz
are emitted. What is the wavelength of these
x-rays?
Answer in units of pm.

Respuesta :

Otras preguntas

Which explains how mass media has changed the role of the presidency

Choose the sentence that is correct. A) We went too the store. B) He is too big for those pants! C) I had too doughnuts for breakfast. D) Do you want too co

Which equation has the same solutions as 2x^2+16x-10=0 a) (x+4)^2=-3 b) (x+4)^2=-11 c) (x+4)^2=13 d) (x+4)^2=21

a cell phone company charges $60.00 a month for up to 1 gigabyte of data. the cost of additional data is $0.05 per megabyte. if d represents the number of addit

Which sentence does not contain any errors in punctuation or capitalization? A. "How do you write a capital Q in cursive" Scott asked? B. "How do you writ

How many moles of silver chloride are produced from 15.0 mol of silver nitrate

help me with this please!

Need answered quick please

The United States constitution provides for a strong central government. In the sentence which adjective modify government? A. a, strong, central B. the, United

what is the nearest thousand to 2722