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
Alenkasestr [34]
3 years ago
13

7. Halfway through a cross country meet, a

Chemistry
1 answer:
kondor19780726 [428]3 years ago
7 0

Answer:

3m/s

Explanation:

Data obtained from the question include:

Initial speed (s1) = 4 m/s

Final speed (S2) = 7m/s

Change in speed (ΔS)

ΔS = s2 — s1

ΔS = 7 — 4

ΔS = 3m/s

Therefore, the change in speed is 3m/s

You might be interested in
Does money make the personality of person​
jasenka [17]
No, it doesn’t define a person, money doesn’t change people.
5 0
3 years ago
Read 2 more answers
Marshall determines that a gas has a gauge pressure of 276 kpa what's the absolute pressure of the gas
omeli [17]
A gauge records the pressure over atmospheric pressure (0kpa on the gauge is actually the atmospheric pressure and a reading of 276kpa is 276kpa over atmospheric pressure). That means that means that to find absolute pressure you just add atmospheric pressure (around 1atm (101kpa)) to 286kpa to get 387kpa. I hope this helps.
6 0
3 years ago
Carbon dioxide gas reacts with liquid water to produce aqueous carbonic acid.” Which chemical equation correctly translates this
r-ruslan [8.4K]
Last option:
CO2 (g) + H2O (l) -> H2CO3 (aq)

In the brackets:
g = gas,
l = liquid,
s = solid,
aq = aqueous.

So,
CO2 (g) = carbon dioxide gas
H2O (l) = liquid water
H2CO3 (aq) = aqueous carbonic acid
7 0
3 years ago
A gas has an initial volume of 10 L and an initial pressure of 0.8 atm. If the pressure decreases to 0.3 atm, what will be the n
dimulka [17.4K]

Answer:

Gas pressure is measured in units such as torr, mmHg, atm, and Pa. ... You can see mass is small, Volume is large. - hense a small ... The pressure increases if volume decreases. ... For each of the following changes of the initial balloon, select ... A sample of nitrogen (N2) has a volume of 60.0 L at a pressure of 725 mmHg.

Explanation:

4 0
3 years ago
Which one of the following is smallest in size
mario62 [17]
F- is the smallest because it accepts 1 electron 2 make its atomic number 10 making it have jst 2 orbitals but O²-,N³- and Na have their atomic number to be 18,17 and 11 respectively with 3 orbitals..
hope this helps *winks*
6 0
3 years ago
Read 2 more answers
Other questions:
  • Of the choices below, which is true for the relationship shown? it is ka for the acid h3p2o72â. it is kb for the acid h3p2o72â.
    5·2 answers
  • What best discribes the relationship between wavelength and frequency in a electromagnetic wave
    9·1 answer
  • Katelyn had a drop in her blood pressure. How do you think her body will react?
    6·1 answer
  • What is the percentage of nitrogen in the fertilizer urea ((nh2) 2co)
    13·1 answer
  • What is crystacrystallization?
    5·1 answer
  • The correct name of the compound with the formula pbo2 is
    10·1 answer
  • A) Calculate the molar mass of ethanol, C2H5OH and water, H20.<br> C2H5OH =<br> H2O =<br> I
    9·1 answer
  • Which of the three subatomic particles have a neutral charge? *
    11·2 answers
  • At what temperature is the average speed of air particles the highest?
    13·1 answer
  • Which factor would be most likely to shirk the size of an atom’s electronic cloud
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!