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
lord [1]
3 years ago
14

Patricia roller skates 0.50 kilometers, straight north to the library. Then she walks 0.25 kilometers to her friend's house, whi

ch is straight north of the library. What is Patricia's displacement?
1)0.75 km, north
2)0.25 km, north
3)0 km
4)0.75 km
5)cannot be determined because she roller skated on one section and walked on another
Chemistry
2 answers:
nlexa [21]3 years ago
7 0

Answer: 0.75 Km, north

Explanation:

By definition, displacement is the object overall change in position and it is a vector quantity. In simpler term, it is the measure of how far out of place an object is.

From the question, the Library is the starting point and can be termed point (0).

From point (0), Patricia moves in the north direction with roller skates and cover 0.5 Km. Then walks 0.25 Km in the same direction.

Therefore, Patricia's total displacement from point (0) is the change in distance between the starting point, Library, and the final destination, her friend's house.

That is, (0.5 km) north+ (0.25km) north

= 0.75 Km, north

fredd [130]3 years ago
6 0
Number 1 is correct.
You might be interested in
Two plates slide past each other in opposite directions at a ____ boundary.
Kitty [74]

Answer: plate

Explanation: Plates grinding past each other in opposite directions create faults called transform faults. Powerful earthquakes often strike along these boundaries. The San Andreas Fault is a transform plate boundary that separates the North American Plate from the Pacific Plate.

4 0
3 years ago
Read 2 more answers
Which substance is one that cannot be separated or broken down into simpler substances by chemical means? (Element, pure)
Y_Kistochka [10]

Answer:

gold wire (Au)

Explanation:

A substance that cannot be separated or broken down into simpler substances by chemical means is an element.

Between the given options only gold wire is an element, Au.

A way of knowing that it is an element is noticing that its formula is a single symbol which corresponds to an element found in the periodic table, unlike a combination of said symbols (like NaCl or H₂O).

5 0
3 years ago
9. What is the name of the molecule?
AnnyKZ [126]

Answer:

3–methyl–2–butanol

Explanation:

To name the compound, we must:

1. Identify the functional group.

2. Give the functional group of the compound the lowest possible count.

3. Locate the longest continuous carbon chain. This gives the parent name of the compound.

4. Identify the substituent group attached.

5. Give the substituent group the lowest possible count.

6. Combine the above to get the name of the compound.

Now, let us obtain the name of the compound.

1. The functional group of the compound is Alcohol i.e —OH.

2. The functional group is located at carbon 2.

3. The longest continuous carbon chain is carbon 4 i.e butane. But the presence of the functional group i.e OH will replace the –e in butane with –ol. Therefore, the compound is butanol.

4. The substituent group attached is methyl i.e CH3.

5. The substituent group is located at carbon 3.

6. Therefore, the name of the compound is:

3–methyl–2–butanol.

8 0
3 years ago
What is the position of an element in the periodic table if its electron configuration is 1s2 2s2 2p6 3s2 3p5
OlgaM077 [116]
The element in the periodic table with the provided electron configuration is Chlorine. Cl it is found as in element in Group 7 of the periodic table.
4 0
3 years ago
Read 2 more answers
When a pot of water has been boiling vigorously for several minutes, the bubbles that emerge from the liquid water are composed
kumpel [21]
Well, water is composed H2 gas and O2 gas in a 2:1 ratio, and the bubbles that form at the bottom of the pan is just the water changing from a liquid to a gas, and im pretty sure its water vapor that comes out of the pan. I hope that helped??? :)
7 0
3 years ago
Other questions:
  • Why one of the three structures for c2h2cl2 is nonpolar?
    9·1 answer
  • t the R group in the reagent over the arrow be isopropyl. (i.e. The reagent is LiN[CH(CH3)2]2.) Now, fill in the blanks. This re
    14·2 answers
  • What is the theoretical yield of silver chloride?
    14·1 answer
  • Which is regarding enzyme inhbition
    13·1 answer
  • 2NaCl + F2 yields 2NaF + Cl2
    11·1 answer
  • What is the standard cell notation of a galvanic cell made with magnesium<br> (Mg) and gold (Au)?
    9·1 answer
  • Practically: Add 1.66 ml of my 0.3M lemonade to a 15 ml microcentrifuge tube. Add 3.33 ml of your diluent (water, in this case)
    10·1 answer
  • Explain how astronomers use spectrographs to identify the composition of a star.
    6·1 answer
  • What is the name of the high-energy molecule used by cells?
    14·2 answers
  • Complete the sentence using ide, ate or Ic. To determine the name of an anion, you take the name of its element and replace the
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!