2 years ago

Based on the data in the table, what will happen when a sound wave travels

Physics

2 answers:

scoundrel [369]2 years ago

7 0

Answer:

D . The wave will speed up

Explanation:

notka56 [123]2 years ago

4 0

Answer:c

Explanation:

Did the quiz

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The equation Bold r (t )equals(8 t plus 9 )Bold i plus (2 t squared minus 8 )Bold j plus (6 t )Bold k is the position of a parti

KATRIN_1 [288]

Explanation:

It is given that, the position of a particle as as function of time t is given by :

$r(t)=(8t+9)i+(2t^2-8)j+6tk$

Let v is the velocity of the particle. Velocity of an object is given by :

$v=\dfrac{dr(t)}{dt}$

$v=\dfrac{d[(8t+9)i+(2t^2-8)j+6tk]}{dt}$

$v=(8i+4tj+6k)\ m/s$

So, the above equation is the velocity vector.

Let a is the acceleration of the particle. Acceleration of an object is given by :

$a=\dfrac{dv(t)}{dt}$

$a=\dfrac{d[8i+4tj+6k]}{dt}$

$a=(4j)\ m/s^2$

At t = 0, $v=(8i+0+6k)\ m/s$

$v(t)=\sqrt{8^2+6^2} =10\ m/s$

Hence, this is the required solution.

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2 years ago

Steroid use in females can cause masculine characteristics, such as lower voice and increased body hair." True False

s344n2d4d5 [400]

Answer:

True

Explanation:

Side affects can range from

Problems with periods to Loss of breasts

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2 years ago

A light microscope allows for more magnification than electron microscope because it uses a beam of visible light. true false

Igoryamba

False because light microscopes have low resolve and magnification.

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2 years ago

a child goes down the slide, starting from rest. if the length of the slide is 2m and it takes the child 3 seconds to go down th

Doss [256]

nvm deleting.................................

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3 years ago

Which color has the lowest frequency?

Svet_ta [14]

<h2>RED!</h2><h3></h3><h3>On the visible spectrum, red has the lowest frequency.</h3><h3>(I'm an amateur astronomer, so I would know.)</h3>

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2 years ago