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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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A helicopter lifts 35m vertically into the air and then comes back down to the ground.
Phoenix [80]

Explanation:

Distance = Total path length = 35m + 35m = 70m

Displacement = Final - Initial position = 0m

5 0
3 years ago
Why are electrons in different places and not together?
aksik [14]
I would say because they have the same negative charge and they repel each other
6 0
4 years ago
If one object is 103 km away and a second object is 106 km away, one could say that the second object is _____ times further awa
vaieri [72.5K]

Answer:

1.03

Explanation:

\frac{object_{second}}{object_{first}} = \frac{106}{103} = 1.02912621359

Round to three significant digits

1.03

7 0
4 years ago
Which planet shows evidence of water erosion?
Kipish [7]
<span>The planet which shows evidence of water erosion is Mars. Scientists discovered that Mars is the only other planet which has evidences of water existance as Mars' atmosphere contains trace amounts of water vapor, and it surprisingly turned out that it also has polar ice caps which are filled with frozen H2O. And, as you may have heart, Mars has shown many evidences of past river valleys and lakes.</span>
6 0
3 years ago
A cleaner pushes a 4.50-kg laundry cart in such a way that the net external force on it is 60.0 N. Calculate the magnitude of it
liq [111]

Answer:

The acceleration of the laundry cart is 13.3 m/s²

Explanation:

Hi there!

According to Newton's second law, the sum of all forces acting on an object in a given direction is equal to the mass of the object times its acceleration in that direction:

∑F = m · a

Where:

∑F = net force acting on the cart.

m = mass of the cart.

a = acceleration.

Then, solving this equation for the acceleration:

∑F / m = a

60.0 N / 4.50 kg = a

a = 13.3 m/s²

The acceleration of the laundry cart is 13.3 m/s²

5 0
3 years ago
Read 2 more answers
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