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2 years ago

Which of the following is one principle of the cell theory?

2 answers:

6 0

The answer you are looking for is C
Both plants and animals are made of cells
And all living things are made up of one or more cells. I hope that helped! :)

mario62 [17]2 years ago

3 0

Answer:

One principle of the cell theory is that living things are made up of one or more cells.

Explanation:

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A meteor falls toward Earth's surface. Given that the acceleration due to

ICE Princess25 [194]

Answer:

E = 147000 J

Explanation:

Given that,

The mass of meteor, m = 50 kg

The altitude of the meteor, h = 300 m

We need to find the potential energy of the meteor. The formula for the potential energy is given by :

$E=mgh$

Put all the values,

$E=50\times 9.8\times 300\\\\E=147000\ J$

So, the required potential energy is equal to 147000 J.

4 0

3 years ago

What is the ph of 0.1 m naoh solution??

Rudik [331]

NaOH is a strong base so pH will be around 13 to 12. Whatever number of moles of NaOH you have approximately the pH of NaOH will be around 14 13 or 12

7 0

3 years ago

Consider this reaction 2Mg(s)+O2(g) ———> 2MgO(s) What volume (in milliners) of gas is required to react with 4.03 g Mg at STP

nydimaria [60]

The volume of a gas that is required yo react with 4.03 g mg at STP is 1856 ml

calculation/

calculate the moles of Mg used

moles=mass/molar mass

moles of Mg is therefore=4.03 g/ 24.3 g/mol=0.1658 moles

by use of mole ratio of Mg:O2 from the equation which is 2:1

the moles 02=0.1679 x1/20.0829 moles

at STP 1 mole of a gas= 22.4 l

0.0895 moles=? L

by cross multiplication

=0.0895 moles x22.4 l/ 1 mole=1.8570 L

into Ml = 1.8570 x1000=1856 ml approximately to 1860

6 0

3 years ago

If ur car goes 50 kilometers in 2 hours, what is its average speed?

natita [175]

Answer:

25 km per hour

Explanation:

50/2=25

4 0

2 years ago

Read 2 more answers

A collection of pennies was investigated. 10.00% were found to have been minted in San Francisco with an average mass of 2.15 g

german

The average mass of the pennies in the sample is 2.16 g.

We have a set of pennies from which 10.00% have an average mass of 2.15 g and 90.00% have an average mass of 2.156 g. The average mass (am) of the whole set is a weighted average, that considers the mass (m) and the percentage (perc) of each group. We can calculate it using the following expression.

$am=\frac{\Sigma m \times perc }{100 \%} = \frac{2.15g \times 10.00\% + 2.156 g \times 90.00\% }{100\%} = 2.1554 g \approx 2.16 g$

The average mass of the pennies in the sample is 2.16 g.

You can learn more about weighted average here: brainly.com/question/18554478

5 0

2 years ago