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Leni [432]
3 years ago
15

True or False. Electromagnetic waves travel fastest through a vacuum.

Physics
1 answer:
olya-2409 [2.1K]3 years ago
4 0
This
 is
 true 
Electromagnetic waves travel fastest through vacuum
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De acuerdo a la trayectoria que describe el movimiento de la
dusya [7]

Answer:

With a circle.

Explanation:

8 0
3 years ago
In which type of wave do air particles move together or apart parallel to the direction of the wave?
Phoenix [80]
The best and most correct answer among the choices provided by the question is <span>B.sound waves</span><span>.
</span>

<span>Particles move together or apart parallel to the direction of the sound wave.
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Hope my answer would be a great help for you.    
If you have more questions feel free to ask here at Brainly.
8 0
4 years ago
Two identical cylindrical vessels with their bases at the same level each contain a liquid of density 1.23 g/cm3. The area of ea
motikmotik

Explanation:

Work done by gravity is given by the formula,

           W = \rho A (h_{1} - h)g (h - h_{2}) ......... (1)

It is known that when levels are same then height of the liquid is as follows.

           h = \frac{h_{1} + h_{2}}{2} ......... (2)

Putting value of equation (2) in equation (1) the overall formula will be as follows.

       W = \frac{1}{4} \rho gA(h_{1} - h_{2})^{2})

           = \frac{1}{4} \times 1.23 g/cm^{3} \times 9.80 m/s^{2} \times 3.89 \times 10^{-4} m^{2}(1.76 m - 0.993 m)^{2})

           = 0.689 J

Thus, we can conclude that the work done by the gravitational force in equalizing the levels when the two vessels are connected is 0.689 J.

3 0
3 years ago
What are some ways that electric fields are similar to magnetic fields?
sattari [20]

Answer:

The correct answers are the proportionality of the fields concerning distance, vector fields, and forces at a distance.

Explanation:

The similarities between magnetic fields and electric fields are that electric fields are produced by two charges that can be positive and negative. Magnetic fields are associated with two magnetic poles, although they are also produced by moving charges. Both fields are inversely proportional to the square of the distance between the sources, both fields are vectorial and both act by distant forces.

Have a nice day!

3 0
3 years ago
Reaction time is the lapse of time between muscular movement and external stimuli. True or false
riadik2000 [5.3K]
False. reaction time would be lapse of time between external stimuli and muscular movement
3 0
3 years ago
Read 2 more answers
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