Question and answer
An electromagnetic wave in a vacuum has a wavelength of 0.07 m. What is its frequency? A. 3.0 x 108 m/s B. 4.3 x 109 Hz C. 3.0 x 109 Hz D. 4.3 x 108 m/s
B. 4.3 x 109 Hz is the frequency of An electromagnetic wave in a vacuum and has a wavelength of 0.07 m.
Expert answered|asero1010|Points 3759|
Question
Asked 6/30/2012 11:17:22 AM
0 Answers/Comments
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
In an experiment, if doubling the manipulated variable results in a doubling of the responding variable, the relationship between the variables is a(an)
Question
Expert Answered
Updated 1/10/2013 11:58:36 AM
1 Answer/Comment
In an experiment, if doubling the manipulated variable results in a doubling of the responding variable, the relationship between the variables is a: Direct Proportion
Added 1/10/2013 11:58:37 AM
A cake rises as it bakes because a chemical change causes to be produced.
Weegy: Yes. Air and CO2 are produced, which cannot escape so the cake puffs up and rises as the gases are trapped inside. User: The theory of matter states that all particles of matter are in constant motion. User: At sea level, water at 100°C. Weegy: At the sea level, the temperature of water if at 100 C, means that it is on boiling temperature (More)
Question
Expert Answered
Asked 6/24/2012 3:58:36 PM
0 Answers/Comments
Cooking requires continuous addition of energy to the chemical reactions that are taking place. The chemical reactions involved in cooking can be described as User: Francium has 36 isotopes, but only francium-223 occurs in nature. Francium-223 spontaneously emits particles and energy, so francium-223 is a(an) of francium.
Question
Not Answered
Updated 7/6/2012 4:29:15 PM
1 Answer/Comment
Cooking requires continuous addition of energy to the chemical reactions that are taking place. The chemical reactions involved in cooking can be described as the rearrangement of atoms to form new substances.
Added 7/6/2012 4:29:15 PM
John Dalton concluded that all the atoms of a single have the same mass. User: From left to right across a period in the periodic table, elements become less and more in their properties. User: You are given the melting points of three unknown substances and are asked to predict which one is an ionic compound. You would select the compound with the melting point.
Weegy: You would select the compound with the greatest melting point. Ionic compounds have very strong mutual bonds and thus are very difficult to change from solid to liquid state. [ Thus, they require high energy in the form of heat to get converted to liquid state. So ionic compounds have high melting points. ] (More)
Question
Expert Answered
Asked 6/24/2012 4:01:33 PM
0 Answers/Comments
In the symbol He, the superscript 4 is the for helium, and the subscript 2 is the for helium.
Weegy: The He is the symbol for Helium, because an alpha particle is a helium ... [ The notation should be a superscript 4 over a subscript 2, followed by He, and then a... ] User: What naturally occurring radioisotope is used as the fuel for a nuclear reactor? (More)
Question
Expert Answered
Asked 6/24/2012 4:23:26 PM
0 Answers/Comments
17,179,312 questions answered
Popular Conversations
Weegy Stuff
S
R
L
1
1
P
C
1
P
1
1
L
P
C
P
C
1
P
C
L
P
C
1
P
C
P
C
Points 2618 [Total 24218]| Ratings 4| Comments 2578| Invitations 0|Offline
S
L
1
L
Points 2260 [Total 6236]| Ratings 8| Comments 2180| Invitations 0|Offline
S
L
C
P
C
1
L
L
Points 2191 [Total 15805]| Ratings 13| Comments 2061| Invitations 0|Offline
S
L
P
C
L
P
C
P
C
L
P
C
P
C
P
C
Points 2076 [Total 17103]| Ratings 7| Comments 2006| Invitations 0|Offline
S
L
1
1
1
1
L
1
Points 1927 [Total 9634]| Ratings 2| Comments 1907| Invitations 0|Offline
S
L
P
C
P
C
1
L
P
C
L
P
C
P
C
P
C
P
C
Points 900 [Total 18471]| Ratings 0| Comments 900| Invitations 0|Offline
S
1
L
1
L
P
P
L
Points 563 [Total 11224]| Ratings 1| Comments 553| Invitations 0|Offline
S
1
L
L
Points 558 [Total 5122]| Ratings 0| Comments 558| Invitations 0|Offline
S
Points 411 [Total 614]| Ratings 1| Comments 401| Invitations 0|Offline
S
Points 369 [Total 369]| Ratings 2| Comments 319| Invitations 3|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.