yong0717 yong0717

01-10-2018
Physics

contestada

why is it that a bell in a sealed bell jar can be heard when the jar is full of air

Respuesta :

osprey2015 osprey2015

02-10-2018

sound travels through air, not through vacuum = lack of air

Answer Link

Otras preguntas

Can you explain what mitochondria are? Where are mitochondria found?

Why do the cells in all living things need energy? A. to fuel their chemical reactions B. to help them decompose C. to communicate with other cells D. so they c

Which organization helped provide legal assistance to the families taking part in the case of Brown v. Board of Education? A) the National Collegiate Athletics

Suppose the plates beneath Earth's surface stopped moving. What do you think would happen? Explain your answer.

answer #5,6,7,8,9,10 5.) -2 X 3/7= 6.) -2 2/3 X4 1/10= 7.)-2 1/5 X -1 3/4= 8.)-1 1/4 X9= 9.)-1 5/7 X -2 1/2= 10.)-2 3/8 X 2 1/2=

A gallery had 47 paintings, 75 photographs, and some sculptures. How many more paintings did the gallery have than sculptures?

suppose a varies directly as b, and a=7 when b=2 find b when a =21

Which of the following best summarizes the Treaty of Ghent? a. The British and the United States split the cost of the war. b. Britain and the United States res

What is the pH of a solution with a concentration of 2.4 × 10-5 molar H3O+? Show, or explain, the work used to solve this problem.

how did capitalism change the balance of power in European countries?