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garik1379 [7]
3 years ago
5

which of the following waves are capable of propagating without a medium? mechanical waves sound waves electromagnetic waves pre

ssure waves
Physics
2 answers:
ratelena [41]3 years ago
4 0
<h3><u>Answer;</u></h3>

Electromagnetic waves

<h3><u>Explanation;</u></h3>
  • <em><u>A wave is a transmission of a disturbance from one point to another. It involves movement of energy from the source to another.</u></em>
  • <em><u>Waves may be classified as mechanical waves or electromagnetic waves depending on whether they require material medium for transmission.</u></em>
  • <em><u>Electromagnetic waves are those waves that do not necessarily require a material medium for transmission, that is they can be transmitted even in a vacuum. Such waves include, x-rays, radiowaves, microwaves, etc.</u></em>
  • Mechanical waves on the other hand require a material medium for transmission. Such waves include sound waves.
charle [14.2K]3 years ago
3 0
Electromagnetic waves
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patriot [66]

According to the pavlovian perspective, people who suffer from PTSD are classically conditioned.

<h3>What is PSTD?</h3>

This is referred to as post traumatic stress disorder which is a mental disorder from a terrifying incident.

The pavlovian perspective however view this disorder as being a type of classical conditioned one.

Read more about Post traumatic stress disorder here brainly.com/question/943079

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5 0
2 years ago
Occasionally, people can survive falling large distances if the surface they land on is soft enough. During a traverse of Eiger'
uranmaximum [27]

Answer:

4611.58 ft/s²

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration due to gravity = 32.174 ft/s²

Equation of motion

v^2-u^2=2as\\\Rightarrow v=\sqrt{2as+u^2}\\\Rightarrow v=\sqrt{2\times 32.174\times 516+0^2}\\\Rightarrow v=182.218\ ft/s

v^2-u^2=2as\\\Rightarrow a=\frac{v^2-u^2}{2s}\\\Rightarrow a=\frac{0^2-182.218^2}{2\times 3.6}\\\Rightarrow a=-4611.58\ ft/s^2

Magnitude of acceleration while stopping is 4611.58 ft/s²

8 0
3 years ago
Vector question,university physics zemanski
just olya [345]

Answer:

yes This is correct Answer

3 0
3 years ago
If a 3-kg rock is thrown at a speed of 2 m/s in a gravity-free environment (presuming one could be found), then an unbalanced fo
Katarina [22]

Answer:

a. False

Explanation:

For an object to be moving at a constant velocity, a net force of 0 N would be required.

Newton's 1st Law of Motion states that an object will remain at rest unless acted upon by an unbalanced force, and an object will remain in motion unless acted upon by an unbalanced force.

Therefore, the unbalanced force of 6 N would not allow the rock to maintain its constant speed.

The answer to this question is A) False.

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3 years ago
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A small button placed on a horizontal rotating platform with diameter 0.520 m will revolve with the platform when it is brought
yawa3891 [41]

For the position of button we can use force balance as

Friction Force = Centripetal force

so here we will have

\mu_s mg = m\omega^2 R

here we know that

R = radius of circle where button is placed

\omega = 2\pi f

f = 35 rev/min

f = \frac{35}{60} rev/s = 0.58 rev/s

\omega = 2\pi (0.58) = 3.66 rad/s

now from above equation

\mu_s(m)(9.81) = (3.66)^2(0.240)

\mu_s = 0.33

so friction coefficient will be 0.33

5 0
4 years ago
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