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Allisa [31]
3 years ago
8

How many seconds are in 209.7 ms?

Chemistry
2 answers:
Aleonysh [2.5K]3 years ago
6 0

Answer:0.21 seconds

Explanation:

Just because it is and how science works

mamaluj [8]3 years ago
3 0

Answer:

0.21 seconds, please let me know if I am wrong

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Since a parallelogram is defined as a quadrilateral with two pairs of parallel sides, Emily drew in a diagonal of a parallelogra
koban [17]

Explanation:

In the attachment fig ABCD is a parallelogram with AC as diagonal.

we know that,

In  a parallelogram opposite sides are equal and parallel

In a parallelogram sum of adjacent angles is 180°

that is

∠A+∠D= ∠B+∠C= 180°

Also, in  a parallelogram opposite angles are equal.

So in ΔADC and ΔABC

1) AD=BC

2) DC= AB

And

3) ∠ADC= ∠ABC

therefore, ΔADC and ΔABC are congruent to each other and Emily was right.

6 0
3 years ago
Three blocks are shown here pls HELPPPP:
White raven [17]

Answer: I am confident the answer is B

Explanation:

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5 0
3 years ago
Which phrase best defines radiant energy? (a)mechanical waves that require a medium to travel through
slava [35]

Answer:

I think is b

Explanation:

if im wrong, heres some information:

mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium.[1] While waves can move over long distances, the movement of the medium of transmission—the material—is limited. Therefore, the oscillating material does not move far from its initial equilibrium position. Mechanical waves transport energy. This energy propagates in the same direction as the wave. Any kind of wave (mechanical or electromagnetic) has a certain energy. Mechanical waves can be produced only in media which possess elasticity and inertia.

3 0
3 years ago
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alukav5142 [94]

Its the third answer

6 0
3 years ago
How many moles of aspartame are present in 4.50 mg of aspartame?
Alekssandra [29.7K]

Answer:- 1.53*10^-^5mol .

Solution:- Aspartame is a artificial sweetener with molecular formula C_1_4H_1_8N_2O_5 and it's molecular mass is  294.3 gram per mol.

We have been given with 4.50 mg of aspartame and asked to calculate the moles. For mass to moles conversion we divide the given mass in grams by molar mass.

Since, the mass is given in mg, we need to convert it to g first.

1 mg = 0.001 g

So, 4.50mg(\frac{0.001g}{1mg})

= 0.00450 g

Now  let's calculate the moles on dividing the grams by molar mass as:

0.00450g(\frac{1mol}{294.3g})

= 1.53*10^-^5mol

Hence, 1.53*10^-^5mol are present in 4.50 mg of aspartame.

4 0
4 years ago
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