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morpeh [17]
2 years ago
12

Which of these elements have the strongest and the weakest forces between its atoms.Give A Reason For Your Answer. Copper,oxygen

,carbon,helium,sulphur and magnesium.​
Physics
1 answer:
vredina [299]2 years ago
7 0

Answer:

Copper is the correct answer

Explanation:

Copper is very strong in situations where it is put in place and not stressed. Like all metal products, you can tear a whole in a copper pipe when it is under constant stress. That might seem obvious, but the thing about using it as pipe material is that some people try to cheat and bend copper into place if they don't measure properly and wind up with a piece that is bit too big or a bit too small.

Hope it helps pls mark me as BRAINLIST :)

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Suppose you exert a force of 180 N tangential to a 0.280-m-radius 75.0-kg grindstone (a solid disk). What is the angular acceler
Lina20 [59]

Explanation:

It is given that,

Force on grindstone, F = 180 N

Radius of grindstone, r = 0.28 m

Mass of grindstone, m = 75 kg

We need to find the angular acceleration of the grindstone. In rotational motion, the relation between the torque and angular acceleration is given by :

\tau=I\times \alpha

\alpha=\dfrac{\tau}{I}

I is the moment of inertia of solid disk, I=\dfrac{1}{2}mr^2

\tau is the torque exerted, \tau=F\times r

\alpha=\dfrac{F\times r}{\dfrac{1}{2}mr^2}

\alpha=\dfrac{2F}{mr}

\alpha=\dfrac{2\times 180\ N}{75\ kg\times 0.28\ m}

\alpha =17.14\ rad/s^2

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What are 2 phenomenon that are caused by gravity
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2 years ago
An airplane undergoes the following displacements, all at the same altitude: First, it flies 59.0 km in a direction 30.0° east o
ddd [48]

Answer:

B) 71.5 [km]

Explanation:

To solve this problem we will decompose each of the directions in the x & y axes.

To solve this problem we will decompose each of the directions in the x & y axes. also for a greater understanding of the angles, you should look at the attached image, which contains the orientations for each angle (clockwise or counterclockwise).

<u>59.0 km in a direction 30.0° east of north</u>

<u />

d_{1x}= 59*sin(30) = 29.5[km]\\d_{1y}= 59*cos(30) = 51.09[km]

<u>58.0 km due south</u>

<u />

d_{2y} = - 58 [km]\\

<u>It flies 100 km 30.0° north of west</u>

<u />

<u />d_{3x}= - 100*cos(30) = -86.6[km]\\d_{3y} = 100*sin(30)= 50 [km]<u />

<u />

Now we sum algebraically the components

d_{x}=29.5-86.6 = -57.1[km]\\d_{y}=51.09 -58+50=43.09[km]\\\\

Using the Pythagorean theorem we can find the magnitude of the displacement.

d = \sqrt{(57.1)^{2} +(43.09)^{2} } \\d= 71.53[km]

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Answer:

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In will most likely decrease its speed.
hope this helps.
8 0
3 years ago
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