All categories

3 years ago

What is displacement?

Chemistry

2 answers:

tatiyna3 years ago

6 0

Answer:

Distance is a scalar quantity.Displacement is an object change in position,only measuring from its starting position to the final position. .........

Explanation:

if your starting and ending position are the same,like your circular 5K route,then you Displacement is 0.In physics Displacement is represent by Δs.

Ludmilka [50]3 years ago

3 0

Answer:

Explanation: it is the velocity per unit time in a particular direction

You might be interested in

I have 2 samples of solid chalk (aka calcium carbonate). Sample A has a total mass of 4.12 g and Sample B has a total mass of 19

IRINA_888 [86]

Answer:

A) Sample B has more calcium carbonate molecules

Explanation:

M = Molar mass of calcium carbonate = 100.0869 g/mol

$N_A$ = Avogadro's number = $6.022\times 10^{23}\ \text{mol}^{-1}$

For the 4.12 g sample

Moles of a substance is given by

$n=\dfrac{m}{M}\\\Rightarrow n=\dfrac{4.12}{100.0869}\\\Rightarrow n=0.0411\ \text{mol}$

Number of molecules is given by

$nN_A=0.0411\times 6.022\times 10^{23}=2.48\times 10^{22}\ \text{molecules}$

For the 19.37 g sample

$n=\dfrac{19.37}{100.0869}\\\Rightarrow n=0.193\ \text{mol}$

Number of molecules is given by

$nN_A=0.193\times 6.022\times 10^{23}=1.16\times 10^{23}\ \text{molecules}$

$1.16\times 10^{23}\ \text{molecules}>2.48\times 10^{22}\ \text{molecules}$

So, sample B has more calcium carbonate molecules.

The ratio of the elements of carbon, oxygen, calcium atoms, ions, has to be same in both the samples otherwise the samples cannot be considered as calcium carbonate. Same is applicable for impurities. If there are impurites then the sample cannot be considered as calcium carbonate.

7 0

3 years ago

What is the difference between an autosome and a sex chromosome

tatyana61 [14]

. The members of theautosome pairs are truly homologous; that is, each member of a pair contains a full complement of the same gene.The sex chromosomes, on the other hand, do not constitute a homologous pair.

8 0

3 years ago

Answer both of these true or false correctly <br><br> brainliest if correct

maxonik [38]

Answer:

There both true.

Explanation:

Hope this helps

3 0

3 years ago

Read 2 more answers

At what point on the hill will the car have zero gravitational potential energy? A) Half-way down the hill. B) At the top of the