Ask question

Ask question

All categories

schepotkina [342]

2 years ago

8

You cut a piece of wood and sand it to make a model. What kind of change occurred? A. chemical change B. substance change C. pha

se change D. physical change

1 answer:

uranmaximum [27]2 years ago

7 0

D. Physical change

Cause you are the one doing the change to it and physical change means You.

You might be interested in

Define by-products of petroleum?

lara31 [8.8K]

Petroleum products<span> are materials derived from crude oil</span><span> as it is processed.

Hope this helps! </span>

7 0

2 years ago

Which factors affect electronegativity?

Vitek1552 [10]

I think it’s C atomic radius and numbers of unshielded protons

7 0

2 years ago

Read 2 more answers

Equivalent massof sodium

andre [41]

Answer:

Sodium

Formula : Na

Equivalent mass:23.0

Mark me as Branliest

8 0

2 years ago

Why is secondary growth important to plants

stepan [7]

Secondary growth is important to plants because it involves thickening of the plant axis.It also increased amounts of vascular tissue.

I tried sorry if it’s not worded perfect :)

5 0

2 years ago

From Young's experiment, how does the frequency of light affect the number of lines observed?

Marina CMI [18]

Answer : (C) "Higher frequencies have larger spaces between lines".

Explanation:

In Young's experiment, the condition for constructive interference is given by :

$dsin\theta=n\lambda$ .........(1)

n is order or number of lines observed

d is distance between slits

$\theta$ is the angle between the path and the line from screen to the slits.

We also know that, $c=\nu \lambda$

or

$\lambda=\dfrac{c}{\nu}$

where,

c is the speed of light

$\nu$ is frequency

$\lambda$ is wavelength

So, equation (1) turns into

$dsin\theta=n\dfrac{c}{\nu}$

$\nu=\dfrac{n\ c}{d\ sin\theta}$

So,

$\nu\propto n$

or

Higher frequencies have larger spaces between line.

So, correct option is (C).

3 0

2 years ago

Read 2 more answers