What is the average reaction time of people

Physics

2 answers:

Yanka [14]3 years ago

6 0

Answer:

the average reaction time is 0.25 seconds.

hichkok12 [17]3 years ago

5 0

Your answer is 0.25 seconds

for audio stimulus, it’s 0.17 and 0.15 for touch stimulus

hope this helps :)
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Force and Motions: Pushes and pulls of all kinds are________.

Mrrafil [7]

Pushes and pulls are all kinds of force.

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3 years ago

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1) If a sound with the same amplitude and energy is propagated at a source, predict through which medium the sound will travel t

Lady bird [3.3K]

Answer:

denser media the speed is greater

Explanation:

The speed of sound is given by the relation

$v= \sqrt{\frac{B}{\rho} }$

where B is the volume modulus and ρ the density of the medium

When analyzing the previous expression, the amplitude of the sound depends on the energy carried by the wave.

Wave speed, is given by the relationship between two magnitudes, we analyze their values for different media. The volume modulus for gases has values of the order of 10⁵ Pa, for liquids of the order of 10⁹ Pa and for solids of 10¹⁰ to 10¹¹ Pa, while the density has values of the order of 10⁻¹ to 10⁰ kg / m³ for gases for liquids 10³ kg / m³ and for solids of the order of 10³ to 10⁴ kg / m³

let's find the order of magnitude of the speed of sound

Gases

v =√ 10⁵/10⁰ = 300 m / s

liquids

v =√ 10⁹/10³ = 1000 m / s

solid

v = √ 10¹¹/ 10⁴ = 3000 m / s

We can see that in denser media the speed is greater

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3 years ago

A 500 g model rocket is on a cart that is rolling to the right at a speed of 3.0 m/s . The rocket engine, when it is fired, exer

ivanzaharov [21]

Answer:

The rocket has to be launched 8 m from the hoop

Explanation:

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On the other hand, when starting the engines we have a vertical force, which creates an acceleration in the vertical axis, let's use Newton's second law to find this vertical acceleration

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y = $v_{oy}$ t + ½ a t²