3 years ago

Which statement correctly describes the organization of cells, tissues, organs, and organ systems within a human body?

Physics

1 answer:

slamgirl [31]3 years ago

4 0

I think the answer is B

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The kinetic energy <br> as the roller coaster goes downhil

Step2247 [10]

Answer:

Increases

Explanation:

The kinetic energy _____ (Increses)

as the roller coaster goes downhill

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2 years ago

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A 75-kg piano is hoisted on a crane and delivered throughout the window of a 6th story apartment (20 meters above ground). What

ipn [44]

Answer:

P = 14700 J

Explanation:

Given that,

Mass of a piano, m = 75 kg

It is delivered throughout the window of a 6th story apartment which is 20 m above the ground.

We need to find the potential energy of the piano. It is given by :

P = mgh

Putting all the values,

P = 75 kg × 9.8 m/s² × 20 m

P = 14700 J

So, the potential energy of the piano is 14700 J.

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3 years ago

Which of the following was NOT a department in Washington's first cabinet?

Bingel [31]

Answer:

I believe its C: Secretary of War. I hope this helped :)

Explanation:

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A 8.50-kg object is hung from the bottom end of a vertical spring fastened to an overhead beam. The object is set into vertical

SpyIntel [72]

Answer: The force constant of the spring is 116.1N/m

Explanation: Please see the attachments below

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Adam and Natalie push on a cart using 150 N of force.The cart does not move.What is static friction on the cart?

Roman55 [17]

When force is applied on an object the object will not slide

So here object will remain in equilibrium after applying the force

So in this case the condition of equilibrium is maintained due to friction force that is applied on the object.

So here for equilibrium be can say

$F_{net} = 0$

also we know that

$F_{net} = F - F_f$

we are given that

$F = 150 N$ ( applied force on the box)

$F_{net} = 150 - F_f = 0$

$F_f = 150 N$

So here this friction force on the cart is known as static friction

$F_s = 150 N$

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3 years ago

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