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belka [17]
3 years ago
9

What does sealant restorations mean?

Physics
1 answer:
Feliz [49]3 years ago
4 0
Sealants<span> are used to protect healthy teeth that have a high potential for decay. Most often, these are the molars with deep grooves. A PRR, preventive resin </span>restoration<span>, is a type of filling that is placed when a cavity has begun and is infiltrating the grooves in the chewing surface of the tooth............</span>
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What is velocity Write its formula
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Velocity (v) is a vector quantity that measures displacement (or change in position, Δs) over the change in time (Δt), represented by the equation
v = Δs/Δt.
5 0
3 years ago
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First Amendment
Ksivusya [100]

Answer:

They were concerned about the government having too much power.

3 0
3 years ago
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A rock band playing an outdoor concert produces sound at 120 dB 5.0 m away from their single working loudspeaker. What is the so
joja [24]

ANSWER:100dB

f<em>rom the  sound intensity level,the sound intensity is calculated as:</em>

<em />\beta<em>₁=</em>\beta<em>=(10dB)㏒₁₀(l₁/l₀)</em>

<em>inserting numbers:</em>

<em>120dB=(10dB)㏒₁₀[l₁/10⁻¹²W/m⁸] or 12=㏒₁₀[l₁/(10⁻¹²)W/m²</em>

<em>Getting the antilog of both sides and obtain 10¹²=l₁(10⁻¹²W/m²)which </em>

<em>can be used to solve for l₁ and get</em>

<em>          l₁=(10⁻¹²W/m²)(10¹²)=1 W/m²</em>

<em>since the sound  intensity is related to the power and that the power does not change,the sound intensity at any other point can be solved.Plugging-in</em>

<em>ᵃ = 4πr²,into P=l₁ₐ₁=l₂ₐ₂ and get:</em>

<em>l₂=l₁(r₁/r₂)² =(1W/m²)(5/35) =2.04×10⁻²W/m²</em>

<em>since we know the sound intensity at the sound point 2r,the sound intensity level at the point can be solved.We have:</em>

<em>     </em>\beta<em>₂=</em>\beta<em>=(10dB)㏒₁₀(l₂/l₀)=(10dB)㏒₁₀(2.04×10⁻²/1×10⁻²)</em>

<em>    </em>\beta<em>₂=(10dB)㏒₁₀(2.04×10¹⁰)</em>

<em />\beta<em> =(10dB)[㏒₁₀(2.04)+㏒₁₀(10¹⁰)]=10dB[0.32+10]=103dB=100dB</em>

<em />

3 0
3 years ago
Light with a wavelength of 612 nm incident on a double slit produces a second-order maximum at an angle of 25 degree. What is th
erastova [34]

Answer:

Speration between the slits d=2.86\ \mu m

Explanation:

Given that,

Wavelength of light, \lambda=612\ nm=612\times 10^{-9}\ m

It is incident on a double slit produces a second-order maximum at an angle of 25 degree.

The condition for maxima is given as :

dsin\theta=m\lambda

d = seperation between the slits

m = order, m = 2

d=\dfrac{m\lambda}{sin\theta}

d=\dfrac{2\times 612\times 10^{-9}\ m}{sin(25)}

d = 0.00000289

or

d=2.86\mu m

So, the seperation between the silts is 2.86\ \mu m. Hence, this is the required solution.

3 0
3 years ago
A lever in which the load is between the fulcrum and the applied force is a ________.
MrMuchimi
Hello there.

<span>A lever in which the load is between the fulcrum and the applied force is a ________.

Answer: It is a second class lever.

Hope This Helps You!
Good Luck Studying ^-^</span>
4 0
3 years ago
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