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

Olivia takes twelve laps on a long track in fifteen minutes. how much time will it take her to skate thirty laps ? A.20.5 minutes B.12 minutes C.37.5 minutes D

identify and label each part of this eukaryotic cell

Describe, step by step, how we can map the field of variable quantity

There are 110 people at a meeting. They each shake hands with everyone else. How many handshakes were there?

CAN SOMEONE PLEASE JUST ANSWER THIS ASAP FOR BRAINLIEST!!! Find the missing factor S that makes the equality true. -30x^5 = (-10x^3)(S) S = ____

How do you end an argumentative essay?And should I include a counter argument somewhere in the essay?

Hey can you help me with this please?

Write a short speech to give the senior team persuading them to change something about the school

Caleb and Sergio stacked boxes on a shelf. Caleb lifted 14 boxes and Sergio lifted 12 boxes. The boxes that Sergio lifted each weighed 10 lb more than the boxes

Plz help thx! a) y+1=x b) –2y–4=–3x