How many significant digits are there in 11.090 mL? a. 5 b. 3 C. 1 d. 2

What does it mean when white light is diffracted and at a particular location the color seen is blue? Please use 2 content relat

Brilliant_brown [7]

When white light is diffracted and blue color is seen is due to the absorbance of wavelength of all other color except blue.

Explanation:

The white light diffracts into rainbow colors which are the 7 colors present in form of VIBGYOR.
VIBGYOR is the violet, Indigo, Blue, Green, Yellow, Orange and Red.
When the blue color is seen denotes the shortest wavelength being reflected and all other being absorbed at the specified location.

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3 years ago

What is the magnitude of the acceleration of a speck of clay on the edge of a potter's wheel turning at 45 rpm (revolutions per

Brilliant_brown [7]

Answer:

$a_{cp}=7.77m/s^2$

Explanation:

The equation for centripetal acceleration is $a_{cp}=\frac{v^2}{r}$ .

We know the wheel turns at 45 rpm, which means 0.75 revolutions per second (dividing by 60), so our frequency is f=0.75Hz, which is the inverse of the period T.

Our velocity is the relation between the distance traveled and the time taken, so is the relation between the circumference $C=2\pi r$ and the period T, then we have: