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Natalija [7]
3 years ago
6

Emily is a competitive swimmer. Why does wearing a swim cap help Emily swim faster?

Physics
1 answer:
sladkih [1.3K]3 years ago
6 0

Answer:

It's helps Emily became when she swims her hair is not in the way creating friction and making her swim faster. friction acts between two metals blocks that slide past each other.

Explanation:

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What is the full moon that occurs during the autumn equinox called?
zhannawk [14.2K]

Answer: Harvest Moon

Explanation:

But to most casual observers, the moon will appear fully illuminated in the night sky from Sunday through Tuesday. In the Northern Hemisphere, the full moon that appears closest to the fall equinox is traditionally referred to as the "Harvest Moon."

3 0
2 years ago
Create a piece of evidence showing the relationship between potential and kinetic energy You MUST include the following words: p
Mrac [35]
You could hold any object (like an apple) for your class to see.  (Its potential energy is greatest at this point).  At the point when you are holding the object the potential energy will be equal to the object's mass multiplied by the object's acceleration due to gravity(9. 8 m/s²) multiplied by the height of the object(however high you choose to hold it). Release the object while it is falling, the object's motion will be evidence of the kinetic energy that the object is experiencing. As the object's kinetic energy increases, its potential energy will decrease.  This can be explained by the law of conservation of energy. This law states that energy cannot be created or destroyed it can only change forms.  Finally, explain to your class that mechanical energy is the sum of kinetic and potential energy. 

I hope this helped. I recommend you  present with an informative powerpoint in the background of your presentation while you present this if you want to do well because it will better show your teacher how much you know rather than if you were to just speak to the class during your presentation.

3 0
3 years ago
Minerals must be _____.
Advocard [28]
Naturally occurring.
inorganic.
solid.
definite chemical composition.
ordered internal structure.
6 0
3 years ago
Read 2 more answers
How do I make a Bohr model of the boron atom?
4vir4ik [10]
This should help

there always needs to be the two electrons first if possible the 8 electrons for each shell till the number of electron runout

3 0
3 years ago
A fisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surfac
Sedbober [7]

Answer:

v = 1.2 m/s

Explanation:

The wavelength of the waves is given as the horizontal distance between the crests:

λ = wavelength = 5.5 m

Now, the time period is given as the time taken by boat to move from the highest point again to the highest point. So it will be equal to twice the time taken by the boat to travel from highest to the lowest point:

T = Time Period = 2(2.3 s) = 4.6 s

Now, the speed of the wave is given as:

v = f\lambda

where,

v= speed of wave = ?

f = frequency of wave = \frac{1}{T} = \frac{1}{4.6\ s} = 0.217\ Hz

Therefore,

v = (0.217\ Hz)(5.5\ m)\\

<u>v = 1.2 m/s</u>

5 0
3 years ago
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