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irakobra [83]
3 years ago
13

Can someone please help me answer these 6 questions?

Mathematics
1 answer:
Mamont248 [21]3 years ago
8 0
1) 19.25

2) 12.92

3) 25.20

4) 19.68

5) 77.05

6)81.67
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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

5 0
3 years ago
Rectangle ABCD is graphed in the coordinate plane. A(-6,-4), B(-4,-4) C-4,-2), and D(-6,-2)
frozen [14]

Answer:

Assuming one unit is one unit of measurement the answer would be nine

Step-by-step explanation:

7 0
2 years ago
53 + 88 = , ADJUST THE SUM OR DIFFERENCE
Hitman42 [59]
I have a sum because it is an addition problem
5 0
3 years ago
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Multiply.<br> (x-6)(4x + 3)
d1i1m1o1n [39]

Answer:

Fully simplified it equals 4x^2 -21x -18

Explanation:

-You need to distribute the x to all of the terms in the second binomial and you also need to distribute -6 to all the terms in the second binommial giving you 4x^2 +3x - 24 -18

-You combine like terms to simplify and your answer is 4x^2 -21x -18

7 0
3 years ago
Please help i will give brainliest to first correct answer<br> (2 5/8 +4 8/17 )+( 9/17 +3 3/8 )
Serggg [28]

Answer:

11

Step-by-step explanation:

You don't need the parenthesis, so you get:

2 5/8 + 4 8/17 + 9/17 + 3 3/8

You combine the integer values and get:

9 + 5/8 + 8/17 + 9/17 + 3/8

You combine the fractions with the denom. of 8 and do the same with those with the denom. of 17 and get:

9 + 8/8 + 17/17

You simplify:

9 + 1 + 1 =

11

3 0
3 years ago
Read 2 more answers
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