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3 years ago

Based on the data in the table, what will happen when a sound wave travels from copper into lead?

Physics

2 answers:

Lynna [10]3 years ago

8 0

Answer:

A i believe

Explanation:

dimaraw [331]3 years ago

7 0

Answer:

the wave will slow down if the question says "copper to lead"

Explanation:

a pex

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How many carrots does benny have if he has 8 times as many as Karen. Karen has 18 carrots.

lina2011 [118]

Answer:

144

Explanation:

18 multiplied by 8 equals 144. Hope I helped! εїз

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4 years ago

Read 2 more answers

Consider the case in which the clay is launched along Path Y. The sphere of clay is launched with an initial velocity of v0 and

Helen [10]

Answer:

w = $\frac{m}{ml^2 + I R^2 }$ v l

Explanation:

Let's form a system formed by the clay sphere and the rod, in this case the angular momentum is conserved

initial instant. Before the crash

L₀ = m v l

Final moment. After the collision with the clay stuck to the rod

L_f = I_{total} w

angular momentum is conserved

L₀ = L_f

m v l = I_total w

w = $\frac{m}{I_{total} }$ v l

the total moment of inertia is the sum of the moments of inertia of the two bodies

the moment of inertia of the rod is

I_rod = I R²

I_total = m l² + IR²

we substitute

w = $\frac{m}{ml^2 + I R^2 }$ v l

4 0

3 years ago

Two solid discs are liked with a belt. The

irakobra [83]

Answer:

ω₂ = 13.09 rad/s

Explanation:

given,

small disk rotating speed = 500 rpm

radius of small disk = R

radius of larger disk = 2 R

rotational speed of larger disk = ?

using the law of conservation of angular momentum, we get

I₁ ω₁ = I₂ ω₂

moment of inertia for solid disk

$I = \dfrac{1}{2}MR^2$

now,

$(\dfrac{1}{2}MR_1^2)\omega_1=(\dfrac{1}{2}MR_2^2)\omega_2$

$(\dfrac{1}{2}MR^2)\omega_1=(\dfrac{1}{2}M(2R)^2)\omega_2$

$R^2\times \omega_1= 4 R^2\times \omega_2$

$\omega_2=\dfrac{\omega_1}{4}$

$\omega_2=\dfrac{500}{4}$

ω₂ = 125 rpm

and

$\omega_2=125\times \dfrac{2\pi}{60}$

ω₂ = 13.09 rad/s

the rotational speed of larger disc is equal to ω₂ = 13.09 rad/s

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4 years ago

We observe a glowing cloud of gas in space with a spectroscope. We note that many of the familiar lines of hydrogen that we know

konstantin123 [22]

Answer:

No information can be concluded from this observation alone the cloud is much cooler than hydrogen on Earth

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3 years ago

A baseball pitcher throws a ball with a speed of 41 m/s. Estimate the average acceleration of the ball during the throwing motio

dusya [7]

<span>When t=0, v=0, d=0 When t=tf, v=41m/s, d=3.5m We have 2 formulas – the ones corresponding to uniformly accelerated linear movement: vf=a*t+vo d=(1/2)*a*t^2+vo*t Let’s put the data in the formulas: 41m/s=a*t+0=a*t 3.5m=(1/2)*a*t^2+0*t=1/2*a*t^2 You can use a variety of methods to find t and a. I will choose substitution. t=(41m/s)/a 3.5m=(1/2)*a*((41m/s)/a)^2=(1/2)*a*(41m/s)^2/a^2=(1/2)*(41m/s)^2/a a=(1/2)*(41m/s)^2/(3.5m)=(1/2)*41^2(m^2/s^2)/(3.5m) a=41^2(m/s^2)/( 2*3.5)=240m/s^2</span>

8 0

3 years ago

Based on the data in the table, what will happen when a sound wave travels from copper into lead?​

Based on the data in the table, what will happen when a sound wave travels from copper into lead?