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
deff fn [24]
2 years ago
15

Do this Q7 if someone do I will her or him brainliest

Chemistry
1 answer:
Simora [160]2 years ago
7 0

The average speed :

1. 10.44 m/s

2. 10.42 m/s

3. 9.26 m/s

The distance 100 m have the greatest average speed

<h3>Further explanation </h3>

Given

Distance and time of runner

Required

Average speed

Solution

<em> Average speed : total distance : total time </em>

1. d = 100 m, t = 9.58 s

Average speed : 100 : 9.58 = 10.44 m/s

2. d=200 m, t=19.19 s

Average speed : 200 : 19.19 = 10.42 m/s

3. d=400 m, t = 43.18 s

Average speed : 400 : 43.18 = 9.26 m/s

The distance 100 m have the greatest average speed

You might be interested in
Chemistry question please help!!
LiRa [457]
Answer: It’s the first one
8 0
2 years ago
Which isomer of 1-bromo-4-tert-butylcyclohexane reacts faster when refluxed with potassium tert-butoxide?
grigory [225]

Answer:

See explanation.

Explanation:

Since potassium tert-butoxide is a strong bulky base, we expect that an elimination reaction predominates.

This reaction is expected to occur by E2 mechanism. The cis isomer of  1-bromo-4-tert-butylcyclohexane is known to react faster by E2 mechanism because it fulfills the anticoplanar arrangement required for for E2 mechanism, where the leaving group and adjacent proton must be anti to each other and in the same plane. The trans isomer can not fulfill this requirement.

7 0
2 years ago
How does the strength of a liquid’s intermolecular forces affect its viscosity
igor_vitrenko [27]

Answer:

Viscosity increases with stronger intermolecular forces

Step-by-step explanation:

<em>Viscosity</em> is the resistance of a liquid to flow.

A liquid can flow easily only if the molecules can move past each other with little resistance.

If there are strong intermolecular attractive forces among molecules, it is more difficult for them to move past each other.

For example, the molecules in molasses have strong attractive forces, so it is quite viscous.

8 0
3 years ago
Which process of a volume of solution of known concentration to determine the concentration of another solution
Mila [183]

Answer: Titration

Explanation:

Titration is a method of quantitative analysis, by which a student, with standard volumetric equipment, burettes, and pipettes, can achieve very precise, and accurate results. It is also known as  

volumetric analysis

.

3 0
3 years ago
The orbits astroids are found primarily between( )and( )
krok68 [10]

Explanation:

The orbitasteroids are found primarly between sun and moon

6 0
3 years ago
Other questions:
  • A 2.20 mol sample of NO 2 ( g ) is added to a 3.50 L vessel and heated to 500 K. N 2 O 4 ( g ) − ⇀ ↽ − 2 NO 2 ( g ) K c = 0.513
    14·1 answer
  • 1. Why Are biomolecules essential for life?
    9·1 answer
  • A baby weighs 7 pounds, 4 ounces at birth and 7 pounds, I ounce at discharge. What percent of weight did the baby lose
    9·1 answer
  • melting, boiling, and bending are considered physical changes, but burning is a chemical change. explain why this is so.
    12·1 answer
  • Which energy transformation occurs after a sky diver reaches terminal velocity
    13·1 answer
  • Which observation illustrates the law of conservation of mass?
    12·1 answer
  • The type of neuron that carries impulses from the brain are...​
    12·1 answer
  • Which of the following reactions will occur? question 10 options: ag hcl fe zn(no3)2 cu feso4 na hcl
    9·1 answer
  • Find the mass in kilograms of the liquid air that is required to produce 600L of oxygen. In normal condition, 1L of liquid air h
    6·2 answers
  • Finish the attachment quick it's due pleaseee
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!