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IrinaVladis [17]
3 years ago
10

How do I set up this equation and solve ?

Mathematics
1 answer:
vovangra [49]3 years ago
4 0

angles in a triangle need to equal 180 degrees

 so x = 180 - 47 - 58

x = 180-105

 x= 75 degrees

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Suppose that 5 J of work is needed to stretch a spring from its natural length of 30 cm to a length of 39 cm.
vesna_86 [32]

Answer

given,

work = 5 J

spring stretch form 30 cm to 39 cm

W = \dfrac{1}{2}kx^2

x = 0.39 - 0.30 = 0.09 m

5 = \dfrac{1}{2}k\times 0.09^2

k = \dfrac{5\times 2}{0.09^2}

k = 1234.568 N/m

a) work when spring is stretched from  32 cm to 34 cm

x₂= 0.34 -0.30 = 0.04 m

x₁ = 0.32 - 0.30 = 0.02

W = \dfrac{1}{2}k(x_2^2-x_1^2)^2

W = \dfrac{1}{2}\times 1234.568 \times (0.04^2-0.02^2)^2

W = 0.741 J

b) F = k x

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     x = 2.05 cm

3 0
3 years ago
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Alex Ar [27]
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6 0
3 years ago
pleaseeeeeeeeeeeeeeeeeeeeee help me i'm begging you so the questions is what is the multiplicative of 5 and 10-5k
Vsevolod [243]

Answer:

1/5 and -k/5+2

Step-by-step explanation:

inverse of 5= 1/5

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3 years ago
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Black_prince [1.1K]

Answer:

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