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Salsk061 [2.6K]
3 years ago
7

If for every action there is an equal and opposite reaction how do things move

Physics
1 answer:
kenny6666 [7]3 years ago
5 0
Because action and reaction have different points of application and act on different objects.



"Non nobis Domine, non nobis, sed Nomini tuo da gloriam."


Regards M.Y.
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4. A cinder block is sitting on a platform 20 m high. It has a mass of 4 kg. The block has energy. Calculate it.
zavuch27 [327]

Answer:

Explanation:

Since the block is at rest in an elevated position, we can assume that it only has potential energy.

U=mgh is the formula for potential energy where U=potential energy, m= mass, g=acceleration due to gravity, and h=height.

Plug in known variables....

U=4kg*9.8m/s^2*20m

U=784 joules of potential energy or letter A.

4 0
2 years ago
Determine the value of the resultant and its location from O.<br>see attach image.​
xxTIMURxx [149]

Answer:

Explanation:

In the x direction the force will be

½(-w₀)L/2 = -¼w₀L  

acting ⅔(L/2) = L/3 below the x axis.

In the y direction the force will be

½(-w₀)L + ½w₀L/2 = -¼w₀L  

the magnitude of the resultant will be

F = w₀L  √((-¼)² + (-¼)²) = w₀L√⅛

in the direction

θ = arctan(-¼w₀L / -¼w₀L) = 225°

to find the distance, we balance moments

(w₀L√⅛)[d] = ½(w₀)L[⅔L] + ¼w₀L[⅔L/2] - ¼w₀L[L - ⅓L/2]

     (√⅛)[d] = ½         [⅔L] + ¼      [⅔L/2] - ¼      [L - ⅓L/2]

     (√⅛)[d] = ½[⅔L] + ¼[⅔L/2] - ¼[L - ⅓L/2]

     (√⅛)[d] =      ⅓L  +    ⅟₁₂L     -  ¼L + ⅟₂₄L  

     (√⅛)[d] = 5L/24

               d = 5L/24 / (√⅛)

               d = 5√⅛L/3

8 0
2 years ago
water wood neon gas arrange the substances in the table from the most to the least ordered particle arrangement. a) wood, water,
mojhsa [17]
I think the correct answer from the choices listed above is option A. The correct arrangement of the substances according to the <span>most to the least ordered particle arrangement should be wood, water and neon gas. Wood should be the first since it is solid which has the most ordered structure as compared to the liquid and a gas. The neon gas is the last since as a gas it has the least ordered structure.</span>
8 0
2 years ago
Read 2 more answers
Someone answer pls !!!!
astra-53 [7]

Answer:

My best guess would be B due to the fact of friction in a simple machine

7 0
3 years ago
For an unknown sample of the experiment, students measure 1679 counts when they first receive their sample and 1336 counts four
Tpy6a [65]

Answer:

Half life of the sample, t_{\frac{1}{2}} = 12.15 min

Given:

Initial amount, N = 1679

Final count of amount, N' = 1336

Time elapsed, t = 4 min = 240 s

Solution:

Now, To calculate the half life, using the relation:

N' = N(\frac{1}{2})^{\frac{t}{t_{\frac{1}{2}}}}

Now, substituting the given values in the above mentioned formula:

\frac{1336}{1679} = (\frac{1}{2})^{\frac{4}{t_{\frac{1}{2}}}}

0.796 = 0.5^{\frac{4}{t_{\frac{1}{2}}}}

Taking log on both the sides:

ln(0.796) = \frac{4}{t_{\frac{1}{2}}}ln(0.5)

0.329 = 4t_{\frac{1}{2}}

t_{\frac{1}{2}} = 12.15 min

6 0
3 years ago
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