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san4es73 [151]
3 years ago
13

(4 + 18 ➗3) x 4 - 3 evaluate each expression

Mathematics
2 answers:
erastova [34]3 years ago
7 0

Answer:

Step-by-step explanation:

(4 + 6) x 4 - 3

10 x 4 -3

40 -3

37

MA_775_DIABLO [31]3 years ago
3 0

Answer:

37

Step by Step solution:

Using BODMAS

(4 + 6) X 4 - 3

10 X 4-3

40-3

37

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A truck weighing 150kN and travelling at 2m/sec impacts with a buffer
FrozenT [24]

The maximum compression of the spring is 0.276 m

Step-by-step explanation:

First of all, we calculate the spring  constant of the spring, by using Hooke's law:

F=kx

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When the truck impacts with the spring, all the kinetic energy of the truck is converted into elastic potential energy of the spring, so we can write

\frac{1}{2}mv^2=\frac{1}{2}kx^2 (1)

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v = 2 m/s is the initial speed of the truck

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x is the compression of the spring

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So now we can re-arrange eq.(1) to find the compression, x:

x=\sqrt{\frac{mv^2}{k}}=\sqrt{\frac{(15,290)(2)^2}{8\cdot 10^5}}=0.276 m

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brainly.com/question/6536722

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Anna [14]

Answer:

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