Recent content by dirk_mec1

No that is not true! See here: https://www.engineersedge.com/calculators/pipe_expansion_thermal_loop_15035.htm

I do not understand how this formula is derived: Can somebody help me? Source: https://www.corzan.com/en-us/piping-systems/specification/thermal-expansion

Could you please show me your line of reasoning regarding this sequence before we are going too far offtopic?

Answers: 1) no 2) no 3) Yes, from a basic iq test.

Like I said it was in a series of other much simpler sequences therefore I would not expect anything out of the ordinary.

What you would pick and why.

Please explain as I am clueless.

83 ... pro it repeats but other than that there is no good reason to pick it 87 no clue.

I find it hard to find pro's and cos for each answer. I've learned a large number of sequences yet I cannot figure this one out. Most other sequences were about linear/multplicative differences (or differences of differences) or using subsequences but they were not hard. This sequence is...

Homework Statement Fill in the dots: 83 80 84 83 88 95 ... Pick one of the following answers: 95 91 83 87 Homework Equations The Attempt at a Solution 84-83 = 1 88-84= 4 88 + 7 = 95 ?

Thanks. I understand my mistake!

1/2018 * -cos(2018x) + C. Why do you ask?

Homework Statement \int_0^{2018 \pi} \lvert \sin(2018x) \lvert \mbox{d}x Homework EquationsThe Attempt at a Solution So the period is: \frac{2 \pi}{ 2018} Each "hump" of the sine has an area of 2 so if I count the number of humps I am done. In one period of an absolute sine function the...

Yes I figured it out. When I solve it I need to multiply with 2 to get the length!

True this was a typo but I still do not get the right answer.