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3 years ago

7

The velocity of a wave is primarily determined by the

1 answer:

tamaranim1 [39]3 years ago

8 0

<h2>Answer: medium </h2><h2 />

The propagation velocity of a wave depends on the medium in which it propagates.

In addition, it depends on the type of wave, for example a mechanical or electromagnetic wave.

In any case, the velocity of a wave is generally related to the value of the wavelength and the period, and can be expressed mathematically through the following formula:

$v=\frac{\lambda}{T}$

where $v$ is the velocity of the wave, $\lambda$ is the wavelength and $T$ is the period.

Therefore:

<h2>The propagation velocity of a wave depends on the <u>medium</u></h2>

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3 years ago

The y-component of the force F which a person exerts on the handle of the box wrench is known to be 86 lb. Determine the x-compo

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Answer:

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magnitude of base = B = 5

using Pythagoras theorem

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y-component of force is given given as:

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2 years ago

The distance-time graph for a faster moving object has a smaller slope than the graph for a slower moving object. True or false

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Read 2 more answers

An ice sled powered by a rocket engine starts from rest on a large frozen lake and accelerates at 12.8 m/s2 . At t1 the rocket e

Simora [160]

Answer:4.39 s

Explanation:

Given

initial velocity $u=0$

acceleration $a=12.8 m/s^2$

velocity acquired by sled in $t_1$ time

$v=0+at$

$v=12.8t_1$

distance traveled by sled in $t_1 s$

$v^2-u^2=2as$

$(12.8t_1)^2-0=2\times 12.8\times s_1$

$s_1=6.4\cdot t_1^2$

distance traveled in $t_2$ time with velocity $v=12.8t_1$

$s_2=v\times t_2$

$s_2=12.8\times t_1\times t_2$

$s_2=12.8\cdot t_1\cdot t_2$

$s_1+s_2=5.37\times 10^3$

$6.4t_1^2+12.8t_1t_2=5370$ ----1

$t_1+t_2=97.7 s$

$t_2=97.7-t_1$

substitute the value of $t_2$ in 1

we get

$6.4t_1^2-1250.56t_1+5370=0$

thus $t_1=\frac{1250.56-1194.33}{12.8}=4.39 s$

$t_1=4.39 s$

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3 years ago