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
allochka39001 [22]
3 years ago
12

A ball is launched from a spring on the floor with an initial velocity of 32 m/s. it then comes to a stop in 4.3 seconds. Determ

ine the acceleration of the ball.
Chemistry
1 answer:
monitta3 years ago
3 0

Answer:

-7.4m/s2

Explanation:

You might be interested in
What type of particles move to create electicity?<br> electrons<br> protons<br> neutrons
sladkih [1.3K]

the answer is electrons.....

5 0
3 years ago
Select the correct answer. An adult human lung has a volume of 2. 9 liters. If its volume decreases to 1. 2 liters and it contai
maria [59]

Moles are the ratio of the mass and the molar mass of the substance given and is estimated in mol. The moles that the lungs contain when it is full is 0.12 moles.

<h3>What is the relation of the volume and moles?</h3>

Moles of the substances are directly proportional to the volume of the substance and can be shown as,

\rm \dfrac{V_{1}}{V_{2}}= \dfrac{n_{1}}{n_{2}}

Here,

Initial volume \rm (V_{1}) = 2.9 L

Final volume \rm (V_{2}) = 1.2 L

Initial moles = \rm n_{1}

Final moles \rm (n_{2}) = 0.049 mol

Substituting values in the equation:

\begin{aligned} \dfrac{2.9}{1.2} &=\rm \dfrac{n_{1}}{0.049}\\\\&= \dfrac{2.9\times 0.049}{1.2}\\\\&= 0.12\;\rm mol\end{aligned}

Therefore, the number of moles in the lungs are 0.12 moles.

Learn more about moles and volumes here:

brainly.com/question/13909347

6 0
2 years ago
How to find hydrogen ion concentration from molarity of solution
vekshin1

The concentration of the hydrogen ions from molarity can be given with the number of hydrogen atoms in the molecular formula.

<h3>What is molarity?</h3>

Molarity is given as the moles of the solute present in a liters of solution. The compound with the number of hydrogen atoms in the molecular formula with degradation possesses the equivalent concentration of the hydrogen ions.

The compound with molecular formula AH having molarity 2, will produce 2M of hydrogen ions.

Learn more about molarity, here:

brainly.com/question/2817451

#SPJ4

7 0
2 years ago
A mole of any atom or molecule has the same number of?
GarryVolchara [31]
The answer to this question is particles yes girl work slay that chem
6 0
3 years ago
Read 2 more answers
Directions: Use the words in the word box to complete the following sentences.
NeX [460]

Explanation:

When the forces acting on an object are balanced , there is no change in the object's motion.

A force acting on a resting object can cause the object to move.

On Earth, gravity pulls all objects toward the ground.

When a force acts in the opposite direction of another force, the forces counteract each other.

More than one force acting on a falling object can reduce its downward acceleration

Air resistance is caused by molecules of air pushing against a moving object

7 0
3 years ago
Other questions:
  • What is the mass of 1.0 x 10-3 mole of Zn? 3.9 x 1022 0.065 0.000015
    14·2 answers
  • The molar volumes of solid and liquid lead at the normal melting temperature of lead are, respectively, 18.92 and 19.47 cm3. cal
    11·2 answers
  • What is another name for the molecular orbital theory of bonding in metals
    14·2 answers
  • the normal boiling point of liquid x is less than of y which is less than that of z which of the following is in the correct ord
    10·1 answer
  • Which of the following statements correctly describes boyle's law
    10·1 answer
  • When a counterfeit detection pen is used on an authentic bill, what color does it turn?
    15·1 answer
  • ______________________ produce evidence that helps to answer important questions or could also lead to new questions.
    12·1 answer
  • The sugar deoxyribose is an important component of DNA. Deoxyribose is 44.8% 7.5% H, and 47.7% O by mass. What is the empirical
    5·1 answer
  • How did technology impact the development of the cell theory?
    5·1 answer
  • I need help with this
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!