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
Alexxx [7]
3 years ago
10

A runner is traveling around the track below at a constant speed. Is she accelerating?

Chemistry
2 answers:
Mashcka [7]3 years ago
5 0

it would be D, i MAY be wrong


Black_prince [1.1K]3 years ago
4 0

<h2>ANSWER:</h2>

D.No, she is not accelerating because her speed is constant.

<h2>EXPLANATION:</h2>

The rate of change of velocity with respect to time is known as acceleration.

acceleration =change in velocity/time

As she is running at constant speed  and there is no change in velocity so she is not accelerating.

You might be interested in
Explain what happens to energy and matter during a chemical reaction.
AlekseyPX
According to law of conservation of matter and energy, amount of both of them will remain same

4 0
3 years ago
What causes a chemical change In electrolytic cells?
skelet666 [1.2K]

your answer is A .



Hope This Helps

6 0
3 years ago
What mass of salt (nacl) should you add to 1.48 l of water in an ice cream maker to make a solution that freezes at -13.4 ∘c ? a
blagie [28]
Answer is: mass of salt is 311,15 g.
V(H₂O) = 1,48 l · 1000 ml/l = 1480 ml.
m(H₂O) = 1480 g = 1,48 kg.
d(solution) = 1,00 g/ml.
ΔT(solution) = 13,4°C = 13,4 K.
Kf = 1,86 K·kg/mol; cryoscopic constant of water
i(NaCl) = 2; Van 't Hoff factor.
ΔT(solution) = Kf · b · i.
b(NaCl) = 13,4 K ÷ (1,86 K·kg/mol · 2).
b(NaCl) = 3,6 mol/kg.
n(NaCl) = 3,6 mol · 1,48 kg= 5,328 mol.
m(NaCl) = 5,328 mol · 58,4 g/mol = 311,15 g.

5 0
3 years ago
Read 2 more answers
Someone please help me
ehidna [41]
I hop this will help u

8 0
3 years ago
The absorbance of an equilibrium mixture containing FeSCN2 was measured at 447 nm and found to be 0.347. What is the equilibrium
Ksenya-84 [330]

Answer:

The concentration is C = 1.11 mol/L

Explanation:

From the question we are told that

     The absorbance is  A = 0.347

       The length is  l =  447 nm  =  447 *10^{-7} \ cm

     

Generally absorbance is mathematically represented as

        A =  \epsilon*  C * l

where \epsilon is the molar absorptivity of  FeSCN2  with a value \epsilon  =  7.0*10^3 L/cm/mol

 and  C is the equilibrium concentration of FeSCN2

So  

       C = \frac{A}{\epsilon *  l  }

substituting values

        C = \frac{0.347}{7.0*10^{3} *  447 *10^{-7}  }

         C = 1.11 mol/L

5 0
3 years ago
Other questions:
  • You are trying to determine the volume of the balloon needed to match the density of the air in the lab. You know that if you ca
    14·1 answer
  • Brainliest 25 pts
    11·1 answer
  • Oxygen is composed of only one kind of atom and can’t be separated into simpler substances. What type of matter is it?
    14·2 answers
  • How have methods for transporting goods changed over time?
    15·2 answers
  • Explain what effect this would have on the person's cells
    12·1 answer
  • Word equation for Silver being added to sulphuric acid
    7·1 answer
  • Which of the following elements has the ability to undergo sublimation
    5·1 answer
  • What are the different chemical properties of the element Cobalt?
    10·1 answer
  • The relationship between an element's isotope and an element's atomic mass are related by...?
    14·2 answers
  • plz help very many points so there better be an answer if u say i just need the points sorry i will report u.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!