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Romashka-Z-Leto [24]
3 years ago
12

I NEED HELP!

Mathematics
2 answers:
Nutka1998 [239]3 years ago
6 0

5 months I think hop this HELPED

adoni [48]3 years ago
4 0

Answer:

the correct answer would be 5 months

Hope this helps (:

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If a 24-kg mass stretches a spring 15 cm, what mass will stretch the spring 10 cm
natulia [17]

Answer:

<h2>16kg</h2>

Step-by-step explanation:

 This problem is borers on elasticity of materials.

according to Hooke's law,<em> "provided the elastic limit of an elastic material is not exceeded the the extension e is directly proportional to the applied force."</em>

F= ke

where F is the applied force in N

          k is the spring constant N/m

          e is the extension in meters

Given data

mass m= 24kg

extensnion=15cm in meters= \frac{15}{100}= 0.15m

we can solve for the spring constant k

we also know that the force F = mg

assuming g=9.81m/s^{2}

therefore

24*9.81=k*0.15\\235.44=k*0.15\\k=\frac{235.44}{0.15} \\k=1569.6N/m\\

We can use this value of k to solve for the mass that will cause an extension of  10cm= 0.1m

x*9.81=1569.6*0.1\\\\x= \frac{156.96}{9.81} \\\x= 16kg

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3 years ago
I need your help pls
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Whats the middle number of 31?
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15.5 15.5 x 2 = 31. hope this helps
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A. 40<br> B. 50<br> C. 12.5<br> D.25<br> Pls help ASAP!!!
luda_lava [24]

The measure of the intercepted arc (a) is twice the measure of the inscribed angle intercepting it (b or 25°). The measures of the inscribed angles are all the same: b = 25°.

The appropriate choice is D. 25

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You need to hang seven pictures in a straight line, in how many ways can this be done?
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