1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stepladder [879]
2 years ago
9

The width of a particular microwave oven is exactly right to support a standing-wave mode. Measurements of the temperature acros

s the oven show that there are cold spots at each edge of the oven and at three spots in between. The wavelength of the microwaves is 12 cm. a. How wide is the oven?
b. What is the frequency of the microwaves?
Physics
1 answer:
Tems11 [23]2 years ago
7 0

Answer:

a) l = 24 cm

b) υ = 2.5 × 10⁹ Hz

Explanation:

given,                      

wavelength of microwave = 12 cm

length of microwave        

           = 2 × λ                    

           = 2 × 12                    

        l = 24 cm

microwave is an electromagnetic wave speed is 3 × 10⁸ m/s

v = υ λ                

υ = \dfrac{v}{\lambda}            

υ = \dfrac{3 \times 10^8}{0.12}

υ = 2.5 × 10⁹ Hz

You might be interested in
A lithium atom has three protons, three neutrons, and three electrons. What is the overall charge on this atom?
Marizza181 [45]

Answer:

0

Explanation:

The overall charge on this atom is 0.

  To find the charge on an atom;

           charge  = number of protons - number of electrons.

Note:

  • Protons are the positively charged particles in an atom
  • Electrons are the negatively charged particles in an atom
  • Neutrons carries no charges on them.

Since the atom is made up of equal number of protons and electrons, the charge on it is 0.

If the number of electrons is more, the atom will be negatively charge but if the number of protons is more, it will be positively charged.

8 0
3 years ago
Read 2 more answers
Need help asap pls
ozzi
Detailed Explanation:

1) Rusting of Iron

4Fe + 3O2 + 2H2O -> 2Fe2O32H2O

Reactants :-
Fe = 4
O = 3 * 2 + 2 = 8
H = 2 * 2 = 4

Products :-
Fe = 2 * 2 = 4
O = 2 * 3 + 2 = 8
H = 2 * 2 = 4

2) Fermentation of sucrose…

C12H22O11 + H2O -> 4C2H5OH + 4CO2

Reactants :-
C = 12
H = 22 + 2 = 24
O = 11 + 1 = 12

Products :-
C = 4 * 2 + 4 = 12
H = 4 * 5 + 4 = 24
O = 4 * 2 + 4 = 12

Looking closely at the way I have taken the total number of elements on the reactants and products side, you can solve the rest.

All the Best!
8 0
2 years ago
Read 2 more answers
"The ________ method can determine whether a string contains a value that can be converted to a specific data type before it is
dem82 [27]

Answer:

The method to determine whether a string contains a value that can be converted to a specific data type before it is converted to that data type

Explanation:

The Java string includes () method to check whether a particular sequence of character is the part of given sub string or not.

One string contain another string in Java or not.

The indexof() to check the string and substring in java

Hence java string include () method to check  whether a string contains a value that can be converted to a specific data type before it is converted to that data type

6 0
2 years ago
A bicycle is a compound machine, true or false
JulsSmile [24]

This is true. The break handles and brakes are levers and the seat adjustment (raise or lower) is a screw.

5 0
3 years ago
Read 2 more answers
True or False an overtone occurs when two or more sound waves are produced at the same time.
Setler79 [48]

Answer:

True, overtone occurs when two or more sounds are produced at the same time.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Explain why the term Nano is used to describe nanotechnology​
    8·1 answer
  • What would you use to to measure the weight of a truck?? I’m needing a word that is 8 letters long
    10·1 answer
  • How remove local action and polarization ​
    15·1 answer
  • Two capacitors give an equivalent capacitance of 9.42 pF when connected in parallel and an equivalent capacitance of 1.68 pF whe
    10·1 answer
  • Define the difference between the Newtonian mechanics and a Lagrangian mechanics
    9·1 answer
  • A block with mass 0.50 kg is forced against a horizontal spring of negligible mass, compressing the spring a distance of 0.20 m
    10·2 answers
  • A rock is dropped from a 164-m-high cliff. How long does it take to fall (a) the first 82.0 m and (b) the second 82.0 m
    15·1 answer
  • Могут ли быть сообщающиеся сосуды неодинаковы пр своей форме
    8·2 answers
  • If the magnitude of the electric field in air exceeds roughly 3 ✕ 106 N/C, the air breaks down and a spark forms. For a two-disk
    6·1 answer
  • 2. Summarize how the force of gravity
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!