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
lidiya [134]
3 years ago
9

A car travels at 15 kilometers west in 10 minutes after reaching the destination the car travels back to the starting point agai

n taking 5 minutes what is the average velocity of the car
Chemistry
1 answer:
blsea [12.9K]3 years ago
3 0
The distance there and back is 30 kilometers. The total time is 15 minutes. Divide the distance by the time to get 2 kilometers. The average velocity is 2 kilometers. Hope this helps! ;)
You might be interested in
What quantity is measured in mol/dm³?
natima [27]
L
M =  \frac{n}{V}  \\ M = \frac{mol}{L}  \\ or \\ M =  \frac{mol}{ {dm}^{3} }
mol/dm³ is measure for molarity
3 0
3 years ago
a doctor's order is 0.125 g of ampicillin. the liquid suspension on hand contains 250 mg/5.0 ml. how many milliliters of the sus
disa [49]
0.125 g=(0.125 g)(1000 mg/1g)=125 mg.

Then, we need 125 mg of ampicillin.
5 ml of  liquid suspension contains 250 mg of ampicilling , therefore:

5 ml----------------250 mg of ampicilling
x--------------------125 mg of ampicilling

x=(5 ml * 125 mg of ampicilling) / 250 mg of ampicilling=2.5 ml

Answer: we require 2.5 ml
5 0
3 years ago
Read 2 more answers
Calcium and bromine have formed a bond. Leading up to this, calcium gave up electrons. It was a(n)
scZoUnD [109]
Leading up to this, calcium gave up 2 valence electrons and thus was denoted as a cation. These 2 electrons were transferred to bromine, which received an overall negative charge because of the addition of 2 valence electrons in its valence shell, and thus formed a negatively charged ion, an anion.

Both formed an ionic bond, due to the electrostatic charge of attraction between the 2 oppositely charged ions. If many ions of Ca and Br are present and numerous ionic bonds have formed it will undergo an arrangement which is that of an ionic lattice, type of structure.
6 0
3 years ago
Finely ground nickel (II) hydroxide is placed in a beaker of water. It sinks to the bottom of the beaker and remains unchanged.
Luden [163]

Explanation:

Acid-base reaction will give salt and water.

The 2nd option is correct.

6 0
3 years ago
Which statement best reflects a change in weather ?
earnstyle [38]
The answer would be, "Today is cloudy, but tomorrow will be clear and sunny." The rest are examples of climate change, which is spanned over 30+ years, weather is on a day-to-day basis
6 0
3 years ago
Other questions:
  • Calculate the number of vacancies per cubic meter for some metal, M, at 773°C. The energy for vacancy formation is 0.97 eV/atom,
    10·1 answer
  • The water table is the..
    9·1 answer
  • Help with this chemistry worksheet
    13·2 answers
  • Balance the equation: ___HgO → ___O2 + ___Hg
    5·2 answers
  • Snow in New York City weathers gargoyles on buildings by which process?
    7·1 answer
  • When interviewed, Mr. Harrison was discussing barometric pressure and the low-pressure system moving in that may cause a change
    11·2 answers
  • In the formula C = 2r, C stands for
    7·1 answer
  • How does the abundance of various isotopes affect the atomic mass?
    14·1 answer
  • Question 3 of 10
    10·2 answers
  • 15. In the chemical equation H2O2(aq) → H2O(0) + O2(g), the O2 is a
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!