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
Trava [24]
3 years ago
11

mary walked north her home to sheila home is 4.0 away then turned right and walked another 3.0 kilometers to the supermarket whi

ch is 5.0 kilometers from her own home she walked the total distance in 15 hours what were her average speed and average velocity
Chemistry
1 answer:
Triss [41]3 years ago
6 0
<span>Her average speed would be the total distance so 7 kilometers divided by the total time or 7/1.5 which would be 4 2/3 km/hr.
 
Her average velocity would be the directed distance of 5 km divided by 1.5 (time) or 3 1/3 km directed 36.87 degrees East of North</span>
You might be interested in
Which organism is most reliant on other organisms, natural processes, or both for reproduction? Explain your answer.
GarryVolchara [31]

Answer:

Asexual versus Sexual Reproduction

Many organisms can reproduce sexually as well as asexually. Aphids, slime molds, sea anemones, and some species of starfish are examples of animal species with this ability.Asexual versus Sexual Reproduction

Many organisms can reproduce sexually as well as asexually. Aphids, slime molds, sea anemones, and some species of starfish are examples of animal species with this ability.

Explanation:

6 0
2 years ago
calculate the ph for each case in the titration of 50.0 ml of 0.130 m hclo(aq) with 0.130 m koh(aq). use the ionization constant
-BARSIC- [3]

The ph before the addition of any Koh is<u> 10.105.</u>

Concentration is the abundance of a constituent divided by way of the overall volume of an aggregate. several sorts of mathematical descriptions may be outstanding: mass concentration, molar concentration, variety concentration, and extent awareness.

After the addition of 50 ml KOH,

moles of KOH = 50 * 0.13 =<u> 6.5 mmol </u>

<u>moles </u><u>of HClO = 50 * 0.13 = 6.5 mmol </u>

occurred hydrolysis solution,

pH = 0.5(14 + pKa + log [base conjugate])

pH = 0.5(14 + (- log (4 * 10^-8)) + log (6.5/(50 + 50)))

pH = <u>10.105</u>

The concentration of a substance is the quantity of solute found in a given amount of solution. Concentrations are normally expressed in terms of molarity, defined because of the variety of moles of solute in 1 L of answer.

The Concentration of an answer is a measure of the quantity of solute that has been dissolved in a given amount of solvent or answer. A concentrated answer is one that has a rather huge quantity of dissolved solute.

Learn more about concentration here:-brainly.com/question/26255204

#SPJ4

4 0
1 year ago
Explain the ways that carbon dioxide is added to the atmosphere. How is it removed? Does most carbon enter the atmosphere as car
Licemer1 [7]

Answer:

Carbon dioxide is added to the atmosphere by human activities. When hydrocarbon fuels (i.e. wood, coal, natural gas, gasoline, and oil) are burned, carbon dioxide is released. During combustion or burning, carbon from fossil fuels combine with oxygen in the air to form carbon dioxide and water vapor.Carbon moves from fossil fuels to the atmosphere when fuels are burned. When humans burn fossil fuels to power factories, power plants, cars and trucks, most of the carbon quickly enters the atmosphere as carbon dioxide gas. Each year, five and a half billion tons of carbon is released by burning fossil fuels.Carbon dioxide causes about 20 percent of Earth's greenhouse effect; water vapor accounts for about 50 percent; and clouds account for 25 percent.Likewise, when carbon dioxide concentrations rise, air temperatures go up, and more water vapor evaporates into the atmosphere—which then amplifies greenhouse heating

5 0
2 years ago
How many moles of copper atoms are in 150g of copper metal
djyliett [7]
The answer to this question would be: 2.36 mol

To answer this question, you need to know the molecular weight of copper. Molecular weight determines how much the weight of 1 mol of a molecule has. Copper molecular weight about 63.5g/mol. Then, the amount of mol in 150g copper should be: 150g / (63.5g/mol)= 2.36 mol
3 0
2 years ago
Which of the following is TRUE?Which of the following is TRUE?A basic solution does not contain H3O+An neutral solution does not
schepotkina [342]

Answer:

b

Explanation:

b

5 0
3 years ago
Other questions:
  • What is the pH of solution if the concentration of [H3O+] = 0.000558?
    15·1 answer
  • Write an equation that represents the action in water of nitrous acid as an arrhenius acid.
    13·1 answer
  • If 1.3 L of C3H8 combusts according to the equation below, how much CO2 will be produced?
    15·1 answer
  • Tissues are made up of two or more different types of organs
    9·1 answer
  • The activation energy for a reaction is changed from 184 kJ/mol to 59.0 kJ/mol at 600. K by the introduction of a catalyst. If t
    13·1 answer
  • What is/are the principal product(s) formed when excess methylmagnesium iodide reacts with p-hydroxyacetophenone?
    13·1 answer
  • Jupiters atmosphere is mostly made of ___
    8·1 answer
  • HELPPPPPPPP!!!!!!!!!!!!!!
    11·1 answer
  • An ionic compound has a very negative heat of solution in water. Would you expect it to be soluble or insoluble in water?.
    14·1 answer
  • Which solution whose POH is 12
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!