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kenny6666 [7]
3 years ago
11

Im confused can someone explain what I have to do

Physics
1 answer:
Studentka2010 [4]3 years ago
5 0
For numbers 1 and 3 it is giving you the answers i believe

number 1 would be 20 joules of potential energy on the far left and far right point

number 3 would the (3rd) point as it says it has 20 joules of kinetic energy

sorry if this doesn’t help
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What is the definition of a biased person
Maru [420]

Answer:

A biased person favors one side or issue over another.

Explanation:

For example say there is a soccer game going on Blue Team VS Red Team,

and the ref wants the Blue Team to win, so he helps the Blue Team win the calling fouls for them or not calling foals for the Red Team.

He is being biased.

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3 years ago
What is the mass moment of inertia of a 20kg sphere with a radius of 0.2m about a point on the sphere's perimeter
Kobotan [32]

Answer:

I = M R^2 is the moment of inertia about a point that is a distance R from the center of mass (uniform distributed mass).

The moment  of inertia about the center of a sphere is 2 / 5 M R^2.

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7 0
3 years ago
You performed an experiment in which you measured the amount of water leaking through differentiations types of roofs. For one r
natali 33 [55]
<h2>Hello!</h2>

The answer is: A. 4.5 L

<h2>Why?</h2>

According to the conversion factor which states that:

1gal=3.78L

It means that we have 3.78 L per each gallon or it's equal to say that we 0.26 gallon per each L.The SI unit for liquid volume is the Liter (L)

Let's make the calculations:

1.2 gal*\frac{3,78L}{1gal} =4,54 L

So, we have 4.54 L in 1,2 gallons.

Have a nice day!

7 0
3 years ago
Read 2 more answers
¿Cuál de las siguientes no es un tipo de fuerza de roce
Degger [83]
Enertia es el answer de tu question
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3 years ago
What are the disadvantages of using alcohol instead of mercury in a thermometer ?​
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