1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lesya [120]
3 years ago
15

Steve walks from his house 5 I'm south then turns east and walks 2 km. Then he walks 9 in North to his older sister's house. She

gives him a ride to his friend Fred's house 2 km west. Find his distance
Chemistry
1 answer:
IgorLugansk [536]3 years ago
5 0

Answer:

18 km

Explanation:

To know the distance, you need to be clear in the concept of distance.

According to the physics, the distance is a measurement that refers to the fact of how much an object has move from one point to another.

In this case, we have a person named Steve and he's walking through several points.

To calculate the distance that he moved, you just need to sum all the values of distance. In this case, it's not neccesary to do calculations regarding the components of the x or y axis, because we are not talking about displacement, where it actually counts. But in this case, we just need all the covered distance that Steven walked since the beggining.

So, no more talk, let's do calculations:

D = 5 + 2 + 9 + 2 = 18 km

So the final answer would be:

<h2>Distance = 18 km</h2>

Hope this helps

You might be interested in
What does the pH scale for acids and bases range from?
salantis [7]

Answer:

Anything below 7.0 is acidic, and anything above 7.0 is alkaline, or basic. pH scale, ranging from 0 (very acidic) to 14 (very basic/alkaline) and listing the pH values of common substances.

Explanation:

PRESS THE CROWN

4 0
3 years ago
Read 2 more answers
What is the mass of the hydrogen peroxide that exactly fills a 200.0 mL container? The density of ethyl alcohol is 0.789 g/mL.
Tom [10]

Answer:

290 g of hydrogen peroxide would fill the 200.0 mL container

Explanation:

Given data:

Volume = 200.0 mL  

Mass of hydrogen peroxide = ?

Solution:

Density of hydrogen peroxide is 1.45 g/cm³.

Density:

Density is equal to the mass of substance divided by its volume.

Units:

SI unit of density is Kg/m3.

Other units are given below,

g/cm3, g/mL , kg/L

Formula:

D=m/v

D= density

m=mass

V=volume

Now we can determine the mass of hydrogen peroxide.

D = m/v

1.45 g/cm³ = m/ 200.0 mL

1 mL = 1 cm³

m = 1.45 g/cm³× 200.0 cm³

m = 290 g

So 290 g of hydrogen peroxide would fill the 200.0 mL container.

5 0
3 years ago
¿Cuál es ion monoatomico más estable formado a partir de aluminio?
Naily [24]

Answer:

3+

Explanation:

3 0
3 years ago
Read 2 more answers
The equilibrium constant, K, for the following reaction is 1.80x102 at 698 K. 2HI(9) =H2(g) +129) An equilibrium mixture of the
Mrrafil [7]

Explanation:

The equilibrium constant of the reaction = K_c=1.80\times 10^{-2}

Initial  concentration of HI = 0.311 M

After addition 0.174 mol of HI(g)

Concentration of HI added = \frac{0.174 mol}{1 L}=0.174 M

New concentration of HI = 0.311 M + 0.174 M = 0.485 M

     2HI\rightleftharpoons H_2+I_2

Initial  concentration:

0.311 M                4.71\times 10^{-2} M           4.71\times 10^{-2} M  

At equilibrium:

(0.485 M - x)  (4.71\times 10^{-2} M+x)           (4.71\times 10^{-2} M+x)  

K_{eq}=\frac{[H_2][I_2]}{[HI]^2}

1.80\times 10^{-2}=\frac{(4.71\times 10^{-2} M+x)\times (4.71\times 10^{-2} M+x)}{ (0.485 M-x)^2}

\sqrt{1.80\times 10^{-2}}=\frac{(4.71\times 10^{-2} M+x)}{ (0.485 M-x)}

0.1342=\frac{(4.71\times 10^{-2} M+x)}{(0.485 M-x)}

0.065087 M-0.1342x=4.71\times 10^{-2} M+x

0.065087 M-4.71\times 10^{-2} M=1.1342x

x=\frac{0.017987 M}{1.3142}=0.01586 M

Equilibrium concentrations:

[HI]=0.485 M-x = 0.485 M - 0.01586 M= 0.46914 M

[H_2]=[I_2]=4.71\times 10^{-2} M+x=4.71\times 10^{-2} M+0.01586 M

[H_2]=[I_2]=0.06296 M

3 0
3 years ago
Besides drinking water, how is water helpful for life and nature?
Contact [7]

Answer:

It keeps us alive, helps us grow plants, helps plants thrive, gives us food, helps keep our animals and crops healthy, cleans us, and so much more

Explanation:

5 0
2 years ago
Other questions:
  • What are the chemical properties of noble gases?
    8·2 answers
  • 12. Which rational number is least?<br>A<br>B<br>C<br>D<br>0.66<br>- 4<br>-<br>-0.6​
    5·1 answer
  • a gas has a volume of 350ml at 45 degree celsius if the volume change to 400ml what is the new temperature
    11·1 answer
  • Reaction time is a stimulus reaponse ______ ? A ) instant B) complex. C) simple . D) automatic
    10·2 answers
  • For the following reaction, the products are favored at equilibrium. Classify each of the reactants and products based on their
    6·1 answer
  • At standard pressure, what is the temperature at which a saturated solution of nh4cl has a concentration of 60 g nh4cl/100. g h2
    8·2 answers
  • How is ethanol different from carbon dioxide?
    8·2 answers
  • Plllllzzz help :(
    11·1 answer
  • 9. Which of the following is needed as a reactant for cellular
    15·2 answers
  • Which changes involve forming or breaking chemical bonds?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!