Ask question

Ask question

All categories

2 years ago

5

7 sentences about degradable

1 answer:

Artyom0805 [142]2 years ago

3 0

Answer:

Many of planet earth's water pollution crises are due to the use of items that are not degradable biologically;
Her address to the United Nations said we have to return to the use of degradable materials
They are currently producing oxo-<em>degradable </em>materials
Sweden is the third nation to perfect and implement the total use of bio<em>-degradable </em>plastic bags
Pepsi Cola Company was reported to have promised to discontinue the use of bottles that were not degradable biologically
Adverse weather conditions eventually make every matter degradable. Some just take longer than other
detergents are degradable.

Cheers

You might be interested in

Select all the correct answers.

amid [387]

Answer:

A

Explanation:

because in the moving object there's a certain energy applied

8 0

2 years ago

The ossicles (the three tiny bones in the middle ear) are responsible for __________.

Feliz [49]

Answer:

D.amplifying sound vibrations from the eardrum

this is correct

3 0

2 years ago

Read 2 more answers

What would the person’s mass be on the earth? Part B pls

Dafna1 [17]

Answer:

I hopes it helps

thank you

4 0

2 years ago

A beam of light strikes one face of a window pane with an angle of incidence of 30.0°. The index of refraction of the glass is 1

natka813 [3]

Answer:

(a). The angle of refraction is 19.26°.

(b). That is proved that the rays in air on either side of the glass are parallel to each other

Explanation:

Given that,

Angle of incidence = 30.0°

Index of reflection of glass = 1.52

(a). We need to calculate the angle of refraction for the ray inside the glass

Using snell's law

$\dfrac{\sin i}{\sin r}=\mu$

$\sin r=\dfrac{\sin i}{\mu}$

Put the value into the formula

$\sin r=\dfrac{\sin 30}{1.52}$

$r=\sin^{-1}(0.329)$

$r=19.26^{\circ}$

(b). We know that,

The incident ray and emerging ray is equal then the ray will be parallel.

We need to prove that the rays in air on either side of the glass are parallel to each other

Using formula for emerging ray

$\dfrac{\sin e}{\sin r}=\mu$

$\sin e=\sin r\times \mu$

Put the value into the formula

$\sin e=0.3289\times 1.52$

$e=\sin^{-1}(0.499)$

$e=29.9\approx 30^{\circ}$

So, $\sin i=\sin e$

This is proved.

Hence, (a). The angle of refraction is 19.26°.

(b). That is proved that the rays in air on either side of the glass are parallel to each other

6 0

3 years ago

Magnesium hydroxide is used in? <br><br> soap<br><br> batteries<br><br> antacids<br><br> detergents

Inga [223]

The answer is antacids

3 0

2 years ago

Read 2 more answers