A ruler is 20 centimeters long. How many rulers do you need to measure a length of 80 centimeters? A. Two B. Three C. Four D. Five 相关知识点: 试题来源: 解析 C。解析:八十厘米的长度,二十厘米长的尺子需要四根。A 选项 two 是二,不符合;B 选项 three 是三,不符合;C 选项 four 是四...
How do you measure the power of a lens?If you've ever looked through binoculars, a telescope, or a magnifying glass, you'll know that some lenses magnify (or reduce) the apparent size of an object much more than others. There's a simple measurement that tells you how powerful a lens...
To work out all the above, you also need to know your measurements. Here are the important ones you need to know: Height:Stand against a wall and measure from the ground up. Leg in-seam:This measurement is from your crotch (where the seat would be) to your foot. ...
8 The length of one curtain shall be thirty cubits, and the breadth of one curtain four cubits: and the eleven curtains shall be all of one measure. 9 And thou shalt couple five curtains by themselves, and six curtains by themselves, and shalt double the sixth curtain in the forefront of...
STEP 4: Stand in front of the mirror.It’s always better to see what you’re doing to be precise in your measurements. STEP 5: Measure the widest point of your forehead.Basically, this point is located between your eyebrows and your hairline. Measure the distance from your hairline on on...
The displacement is a rough guide to how much power a car engine can make and you'll usually see it quoted in either liters or cc (cubic centimeters); 1 liter is the same as 1000 cc. Photo: Make your own two-liter engine! If you find it hard to visualize a two-liter engine, ...
If you work with electronics and electrical systems, chances are very good you've heard about -- and likely own -- a multimeter. But to give the rest of us a little background, a multimeter is a handy device that's able to measure a wide range of parameters in the world of all thi...
In the R summary of the lm() function, you can see descriptive statistics about the residuals of the model, following the same example, the red square shows how the residuals are approximately zero. How to Test if your Linear Model has a Good Fit One measure very used to test how good...
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The researchers found that the concept of personal space is universal, and one of the main theories as to why is that it’s a defensive measure - we stand at a distance from people to protect ourselves from danger. It’s important to get the distance right though, because if you make ...