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
Kaylis [27]
3 years ago
9

A wave has a frequency of 40 he and a wavelength of 35m. What is the speed of the wave?

Physics
1 answer:
djyliett [7]3 years ago
8 0

Answer:1400

Explanation:speed = wavelength x frequency

40 x 35 =

You might be interested in
Facts about Alessandro Volta?
Mila [183]
Invented the battery 
Italian
Has 3 kids
8 0
3 years ago
Read 2 more answers
Scientists can use spectral analysis of stars to determine which of the following?
RoseWind [281]
I do believe all of these but core elements can be determined by spectroscopy which includes the use of electromagnetic radiation. Both the surface and core temperature can be measured using light. Surface elements can be found because the absorption lines of different elements in the spectra of the star, but I haven't heard anything about using spectral analysis for core elements.
4 0
3 years ago
Read 2 more answers
Microwave ovens emit microwave energy with a wavelength of 12.2 cm. What is the energy of exactly one photon of this microwave r
Iteru [2.4K]

Answer:

1.63\cdot 10^{-24} J

Explanation:

The energy of a photon is given by:

E=\frac{hc}{\lambda}

where

h is the Planck constant

c is the speed of light

\lambda is the wavelength of the photon

In this problem, we have a microwave photon with wavelength

\lambda=12.2 cm=0.122 m

Substituting into the equation, we find its energy:

E=\frac{(6.63\cdot 10^{-34} Js)(3\cdot 10^8 m/s)}{0.122 m}=1.63\cdot 10^{-24} J

5 0
3 years ago
Which electromagnet will produce the strongest magnetic force? (1 point)
Contact [7]

Answer:

Y

Explanation:

Y will produce the strongest magnetic force because the current intensity is medium and it has 50 turns in the wire. the number of turns will increase the force because the magnetic field will be more concentrated.

Have a great day :)

7 0
3 years ago
Read 2 more answers
Aerogenerators are used to produce electricity from
ki77a [65]
Like windmills they use the winds to generate their power.
4 0
3 years ago
Other questions:
  • Describe the advantages and disadvantages of keeping the road clear of ice
    6·1 answer
  • What is the frequency of a wave if 3 crests pass in 6 seconds?
    15·2 answers
  • Which of the following is the FINAL step in a forecasting​ system?A.Validate and implement the results.B.Select the forecast​ mo
    12·1 answer
  • Within visible light, violet has the lowest frequency. <br> a. True <br> b. False
    12·1 answer
  • Mechanical waves are classified according to
    11·1 answer
  • Talia is manufacturing rolls of wire for hanging pictures. She needs a material that is ..... so that it can easily be pulled in
    12·1 answer
  • The earth makes one complete revolution around the sun in 365.24 days. Assuming that the orbit of the earth is circular and has
    14·1 answer
  • How does the declining biodiversity affect us?
    6·2 answers
  • what are the four things that affect the resistance of a wire? A. length, diameter, material, and temperature B. weight, diamete
    14·1 answer
  • Jose was out drinking with his friends for nearly the whole night. The next morning he was confused and vomiting, and had a low
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!