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adoni [48]
2 years ago
9

A wire of density p is tapered so that its cross-sectional area varies with x according to

Physics
1 answer:
DochEvi [55]2 years ago
4 0

The wave speed at the origin is v = 8.31 m/s

<u>Given data</u>

A=1.00× 10⁻⁵ x + 1.00× 10⁻⁶

A is in meters squared and x is in meters

tension in the wire is T

T = 24.0

x = 10.0m

density of aluminum = 2700

<h3>calculating for the speed of the wave at the origin</h3>

wave speed  = v = sqrt ( T /  mass per unit length)

mass per unit length = m / L

density = m / v

volume = v = A  * L

density  * A = m / L

wave speed  = v = sqrt ( T /  density  * A )

v = sqrt ( 24 / ( 2700 * .00× 10⁻⁵ x + 1.00× 10⁻⁶ ) )

v = 8.31 m/s

Read more on speed of wave here: brainly.com/question/12969690

#SPJ4

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Racing greyhounds are capable of rounding corners at very high speeds. A typical greyhound track has turns that are 45 m diamete
Readme [11.4K]

Answer:

In m/s^2:

a=11.3778 m/s^2

In units of g:

a=1.161 g

Explanation:

Since the racing greyhounds are capable of rounding corners at very high speed so we are going use the following formula of acceleration for circular paths.

a=\frac{v^2}{r}

where:

v is the speed

r is the radius

Now,

a=\frac{16^2}{45/2}\\ a=11.3778 m/s^2

In g units:

a=\frac{11.3778\ g}{9.8}\\ a=1.161\ g

7 0
3 years ago
You need to put a metal rod
Lubov Fominskaja [6]
-- Put the rod into the freezer for a while.  As it cools,
it contracts (gets smaller) slightly.

-- Put the cylinder into hot hot water for a while.  As it heats,
it expands (gets bigger) slightly.

-- Bring the rod and the cylinder togther quickly, before the
rod has a chance to warm up or the cylinder has a chance
to cool off.

-- I bet it'll fit now.

-- But be careful . . . get the rod exactly where you want it as fast
as you can.  Once both pieces come back to the same temperature,
and the rod expands a little and the cylinder contracts a little, the fit
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8 0
3 years ago
What the exercise or play in the p.e in the philippines?<br> please!!!!, please!!!!
Debora [2.8K]

Answer:

They could be jumping off structures, running or climbing on rocks. They also could be participating in sports like soccer.

Explanation:

sources:

https://www.philippinesbasiceducation.us/2013/06/physical-activity-and-physical.html - about there play schedule

http://sportphil.com/category/articles/  - concil of philippines

Sorry that's all I could find.

5 0
3 years ago
Read 2 more answers
How are electromagnetic waves different than all other waves?
Tems11 [23]
They differ from each other<span> in wavelength. Wavelength is the distance between </span>one wave<span> crest to the next. </span>Waves<span> in the </span>electromagnetic<span> spectrum vary in size from very long radio </span>waves<span> the size of buildings, to very short gamma-rays smaller </span>than<span> the size of the nucleus of an atom.</span>
8 0
4 years ago
Read 2 more answers
An 88 kg worker stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the scale reads 900 N. Fi
Aleks [24]

Answer:

The magnitude is "3.8 m/s²", in the upward direction.

Explanation:

The given values are:

Mass,

m = 88 kg

Scale reads,

T = 900 N

As we know,

⇒  N=mg

On substituting the given values, we get

⇒      =88\times 9.8

⇒      =862.4 \ N

Now,

⇒  T=mg-ma

On substituting the given values in the above equation, we get

⇒  900=862.4-9.8 a

On subtracting "862.4" from both sides, we get

⇒  900-862.4=862.4-9.8 a-862.4

⇒              37.6=-9.8a

⇒                   a=-\frac{37.6}{9.8}

⇒                   a=3.8 \ m/s^2 (upward direction)

8 0
3 years ago
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