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
mel-nik [20]
3 years ago
6

In two or more complete sentences, describe two differences between electromagnetic waves and mechanical waves,

Physics
1 answer:
victus00 [196]3 years ago
8 0

Answer:

Electromagnetic waves travel in vacuum where as mechanical waves don't. The mechanical waves need a medium like water, air, or anything for it to travel. While mechanical waves are cause by wave amplitude and not by frequency, electromagnetic waves are produced by the vibration of the charged particles.

Explanation:

You might be interested in
Energy resources that exist in limited amounts and, fonts used, cannot be replaced except over the course of millions of years a
kobusy [5.1K]
Energy resources that cannot be replaced are called "non-renewable" energy resources.
5 0
3 years ago
Select the correct answer. Which of the following causes air pollution inside the house? A. Smoking cigarettes B. Growing housep
Troyanec [42]

Answer: Smoking cigarettes

Explanation: The other options don't cause pollution to form in the air besides smoking, from the particles it creates causing harm and damage to your lungs and fill the air with smoke particles.

3 0
3 years ago
Read 2 more answers
Una caja de 5.0kg de masa se acelera desde el reposo a través del piso mediante una fuerza a una tasa de 2.0 /s2 durante 7.0s en
Nady [450]

Responder:

<h2>490 julios </h2>

Explicación:

Se dice que el trabajo se realiza cuando una fuerza aplicada a un objeto hace que el objeto se mueva a través de una distancia. El trabajo realizado por un cuerpo se expresa mediante la fórmula;

Workdone = Fuerza * Distancia

Como Fuerza = masa * aceleración,

Workdone = masa * aceleración * distancia

Masa dada = 5.0kg, aceleración = 2.0m / s² d =?

Para obtener d, usaremos una de las leyes del movimiento,

d = ut + 1 / 2at²

u = 0 (ya que el cuerpo acelera desde el reposo) yt = 7.0s

d = 0 + 1/2 (2) (7) ²

d = 49m

Workdone = 5 * 2 * 49

Workdone = 490 Julios

4 0
3 years ago
How many protons are in Calcium? (* Hint: The Atomic number of Calcium is 20).
ryzh [129]

Answer:

The answer to your question is: 20

Explanation:

Atomic number is the number of proton and atom has. Each element has a specific number of protons, if the number of protons change, then this is a new element.

Mass number is the number of protons and neutrons and atom has.

                       Mass number = protons + neutrons

Data

Number of protons = ?

Atomic number = 20

Then,

           atomic number = number of protons = 20

3 0
3 years ago
What is the current running through resistor five?
irga5000 [103]
I believe it would be 3 amps.
4 0
3 years ago
Read 2 more answers
Other questions:
  • An unknown charged particle passes without deflection through crossed electric and magnetic fields of strengths 187,500 V/m and
    9·1 answer
  • A system gains 757 kJ757 kJ of heat, resulting in a change in internal energy of the system equal to +176 kJ.+176 kJ. How much w
    13·1 answer
  • The father of scientific management is- (
    8·1 answer
  • Which phrase best describes the time period in which the current body of scientific knowledge was developed? A. Just over the la
    10·1 answer
  • The operating potential difference of a light bulb is 120 V. The power rating of the bulb is 70 W. (a) Find the current in the b
    15·1 answer
  • A list of different ions are below. Which combinations of ions will result in an ionic bond?
    12·2 answers
  • Compare and contrast the way molecules behave in liquid to the way they behave in solids and gases.
    13·2 answers
  • A lamp is on a dimmer switch. As you turn the switch from the lowest setting to the highest setting, which statement would best
    12·1 answer
  • When you think about and describe the characteristics of a giraffe, what type of model are you using?
    13·1 answer
  • Do two bodies have to be in physical contact to exert a force upon one another?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!