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ss7ja [257]
3 years ago
8

If anyone is really good at physics, please respond to this to let me know. If you respond, I will post another question for you

to answer and make it worth 50 points. I would greatly appreciate the help.
Physics
1 answer:
olasank [31]3 years ago
8 0
I am pretty good at physics.
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Ethan moves a 100 kg barrel up a 50 meter ramp. The amount of work Ethan has completed is
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Answer: i think he's done 50% of work

Explanation:

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3 years ago
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An object starts from rest at time t = 0.00 s and moves in the +x direction with constant acceleration. The object travels 14.0
Sergio039 [100]

Answer:

The acceleration of the object is 9.3 m/s²

Explanation:

For a straight movement with constant acceleration, this equation for the position applies:

x = x0 + v0 t + 1/2 a t²

where

x = position at time t

x0 = initial position

v0 = initial velocity

a = acceleration

t = time

we have two positions: one at time t = 1 s and one at time t = 2 s. We know that the difference between these positions is 14.0 m. These are the equations we can use to obtain the acceleration:

x₁ = x0 + v0 t + 1/2 a (1 s)²

x₂ = x0 + v0 t + 1/2 a (2 s)²

x₂ - x₁ = 14 m

we know that the object starts from rest, so v0 = 0

substracting both equations of position we will get:

x₂ - x₁ = 14

x0 + v0 t + 1/2 a (2 s)² - (x0 + v0 t + 1/2 a (1 s)²) = 14 m

x0 + v0 t + 2 a s² - x0 -v0 t - 1/2 a s² = 14 m

2 a s² - 1/2 a s² = 14 m

3/2 a s² = 14 m  

a = 14 m / (3/2 s²) = <u>9.3 m/s² </u>

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4 years ago
Imagine a car moving down a street. From which reference point would the
antiseptic1488 [7]

Answer:

From the car

Explanation:

You are in motion

Hope this helps

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3 years ago
What is the equivalent capacitance of the three capacitors in the figure?
pantera1 [17]
Where's the figure?.........
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3 years ago
A 934 kg object at rest has what momentum ?
AlekseyPX

Answer:

0

Explanation:

An object that is at rest and not moving will always have 0 momentum!

I hope this helped!

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2 years ago
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