Chemistry High School

An object starts from rest and exhibits the motion represented by the graph. The object’s average velocity during the 3 second to 5 second time interval is approximately –
8.4 m/s


3.2 m/s


4.8 m/s


.0125 m/s

An Object Starts From Rest And Exhibits The Motion Represented By The Graph. The Objects Average Velocity

Answers

Answer 1

Answer:

8.4 m/s

Explanation:

Initial velocity of the object is 0 as it was at rest.

We need to find the object’s average velocity during the 3 second to 5 second.

We can see from the graph that from 3 s to 5 s, the graph is a straight line. If we take the slope we can find the average velocity during the 3 second to 5 second.

Displacement between 3 s to 5 s is :

D = 24.8 m - 8 m = 16.8 m

Time = 5 s - 3 s = 2 s

Now,

Average velocity,

[tex]v=\dfrac{\Delta y}{\Delta x}\\\\y=\dfrac{16.8\ m}{2\ m}\\\\y=8.4\ m[/tex]

So, the object’s average velocity during the 3 second to 5 second is 8.4 m/s.

Related Questions

Compounds are different than elements because compounds are–
Group of answer choices

a pure substance; elements are not.

not able to be broken down into parts.

made from the same type of atoms.

combinations of two or more elements.

Answers

Answer: Compound are different than elements because compounds are combinations of 2 or more elements.

When hit from behind in a car crash, a passenger can suffer a
neck injury of whiplash. This is an example of Newton's
law,

Answers

Answer:

Neck injury, and back injury


A bucket is filled with pebbles and water. How can the contents of the bucket be classified?

A. A compound
B. A heterogeneous mixture
C. A solution
D. A homogeneous mixture

Answers

B.A heterogeneous mixture
Heterogeneous mixture

Which argument is correct about the growth of an organism?


Only genetic factors affect the growth of an organism.

Only genetic factors affect the growth of an organism.

Only environmental factors affect the growth of an organism.

Only environmental factors affect the growth of an organism.

The combination of genes and environmental factors affects the growth of an organism.

The combination of genes and environmental factors affects the growth of an organism.

Genes remove the environmental factors that affect the growth of an organism.

Genes remove the environmental factors that affect the growth of an organism.

Answers

Answer: The combination of genes and environmental factors affects the growth of an organism.

Explanation:

Gene consists of DNA and it's heredity physical and functional unit. Genes play a vital role in a organisms growth. For example in humans, if one's parents are tall, there's a large tendency that such child will be tall and vice versa.

Environmental temperature also affects growth of living organisms. These include water soil pH, temperature, gender, chemicals etc. These all affects growth, it should be noted that proteins in living organisms can be damaged at a certain temperature which invariably affects the growth of such organism.

Also, the environment influences gene expressions as temperature, light, drugs, and chemicals, affects genes as they determine which ones will either be turned on or off which will further lead to how such organism grows.

what type of compound is iron (3) oxide

Answers

Answer:

B Group Salt (Ionic Bond)

Explanation:

Iron (III) Oxide

Fe2O3

Answer:

Carbon Trioxide

Explanation:

what frequency does television channel 7 broadcast at?

Answers

Answer:

Channel 7's frequency is 117.5 MHz

Answer:

174 MHz - 180 MHz w/ center frequency of 177 MHz

Explanation:

216 - 174 = 42

42/7 = 6

6 + 174 = 180          -           7                   -               177 MHz

180 + 6 = 186          -           8                   -               183 MHz

186 + 6 = 192          -           9                   -               189 MHz

192 + 6 = 198          -          10                   -               195 MHz

198 + 6 = 204          -          11                   -               201 MHz

204 + 6 = 210          -          12                  -               207 MHz

210 + 6 = 216          -           13                  -               213 MHz

What is the purpose of this material in the nucleus?*
O
makes antibodies
DNA makes protein molecules to help with almost every cellular process.
о
DNA makes super molecules to help with almost every cellular process.
to make concrete

Answers

Answer: DNA makes protein molecules to help with almost every cellular process.

i think?

what is the volume when the density is 7.83g/ml and 19.6 grams?

Answers

to fine volume, you have to divide the mass by the density of the substance. in this, you’ll do 19.6/7.83=2.50

How would you record the length of an object?

Answers

Answer:

a ruler

Explanation:

Forensic psychiatry focuses on the relationship between human behavior and criminal justice.
O True
O False

Answers

Your answer should be False
Hope this helps

A 57.9 gram mass has a volume of 3 cm 3. What is the density of the mass?

Answers

Answer:

The answer is 19.3 g/cm³

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume}\\[/tex]

From the question

mass = 57.9 g

volume = 3 cm³

We have

[tex]density = \frac{57.9}{3} \\ [/tex]

We have the final answer as

19.3 g/cm³

Hope this helps you

Which of these particles is the smallest?

A.a proton

B.a nucleus

C.an electron

D.an atom

Answers

Answer:

an atom. It is the smallest thing known to man kind

Explanation:

Answer:

C

Explanation:

so basically, we can eliminate some answer choices right away.

an atom (answer choice D) is made up of all the other answer choices, so that is the largest (not the answer).

a nucleus (answer choice B) is made up of protons (answer choice A) and neutrons which means it is not the smallest either (not the answer).

now, we are left with a proton and an electron. electrons are much smaller than protons, so they are usually not included in an element's atomic mass. therefore, an electron is the smallest out of these answer choices.

what will happen to the speed of sound if you sing your favorite song during a cold day?​

Answers

Answer:

The speed will decrease

What is the primary type of heat transfer?: A cool breeze blows off the water.

Answers

Answer:

Explanation:

Heat transfer occurs by three main mechanisms: conduction, where rigorously vibrating molecules transfer their energy to other molecules with lower energy; convection, in which the bulk movement of a fluid causes currents and eddies that promote mixing and the distribution of thermal energy

The amount of gravitational force between objects depends on their...
O Masses and the distance between them
O Masses and the frictional forces between them
O Speed and direction of motion
O Speed and the distance between the masses

Answers

Answer:

mass and distance between them

The density of a gas is 0.68 g/mL. What amount of space would 23.8 g of this gas occupy

Answers

Answer:

Density of the gas = Mass/Volume
Mass = 0.68g/mL
Volume = 23.8g
So, Density of the gas:
= (0.68/23.8)g/mL
= 2.85g/mL

A mass spectrometer has determined the mass and abundances of all isotopes of an unknown element. The first isotope has a mass of 38.96amu (93.28%) and the second a mass of 40.96amu (6.72%). Calculate the average atomic mass and identify the unknown element, WRITE ONLY THE SYMBOL FOR YOUR ANSWER.

Answers

Answer:

I believe it is Potassium (K)

Explanation:

I did the math on a calculator and it was the closest atomic mass to potassium.

Which particle matters the most when it comes to stable atom protons or neutrons?

Answers

Answer:

Protons

Explanation:

Protons are worth 1, while neutrons are neutral and are worth zero.

what two elements make up the most of the earth's core​

Answers

Answer:

The Earth's core is mainly made of iron and nickel.

Explanation:

Answer: The Earth's core is mainly made of iron and nickel.

Explanation:

What particle is in the nucleus that gives it a positive charge?

Answers

Answer:

proton

Explanation:

"Proton: A positively charged particle found in the nucleus of an atom. A proton contributes one atomic mass unit to the total atomic weight of an atom" this is definition per Google search

If 96.5 grams of gold has a volume of 5 cm, what is the density of gold?

Answers

It’s a good birthday bro bro you bro don’t bro you know bro bro yeah tot

Pesticides are a type of wastewater
pollutant.
True
False

Answers

True. When pesticides make it to a water source, this water source becomes polluted, and unsafe for humans, animals, plants, etc.

Elements that are good conductors, malleable, ductile, and shiny

ductility

malleability

metal

metalloid

nonmetal​

Answers

Metals are ductile,malleable,good conductors and shiny

How many elements are in the following equation? salt pure water(NaC/
+ H2O)

Answers

Answer:

4

Explanation:

Sodium Na, Carbon C, hydrogen H2, Oxygen O

Hey! I believe that there are 4 elements in the equation.

Calculate the wavelength of a photon of light having a frequency of 3.50 x 1015 Hz. A. 1.05 x 1024 m B. 1.33 x 1016 m C. 8.57 x 10-8m D. 1.17 x 107 m​

Answers

Answer:

1.17x107m

Explanation:

Except for helium, all the elements in the last column of the periodic table have
valence electrons.
0 7
0 8
О О
O 18

Answers

Answer:

O

Explanation:

they have O valence electrons

Water is a pure substance. Which of the following is true about water?

a
A chemical change is required to separate the elements present in it.

b
A physical change is required to separate the elements present in it.

c
It is made up of two compounds, each with a different set of atoms.

d
It is made up of an element and a compound.

Answers

Answer:

A chemical change is required to separate the elements present in it.

Explanation:

The only true statement from the choices given is that water as a pure substance requires a chemical change to separate the elements present in it.

Water is a molecule consist of two atoms of hydrogen and one atom of oxygen.

The atoms are covalently bonded together. A chemical process, the electrolysis of water is often used to separate the atoms of a water. Physical changes cannot be used to separate the atoms of water. Water is a compound which consists of two elements.

Therefore, we see that only the first choice satisfies this problem.

The atomic mass of Gallium is 69.72 AMU. The masses of the naturally occurring isotopes are 68.9257 AMU and 70.908 AMU for Ga-69 and Ga-71. Find the percent (%) abundance for each.

Answers

Answer:

40.7% abundance of Ga-71

59.93% abundance of  Ga-69

Explanation:

Given data:

Average atomic mass of Ga = 69.72 amu

Atomic mass of Ga-69 = 68.9257 amu

Atomic mass of Ga-71 = 70.908 amu

Percent abundance of each isotope = ?

Solution;

we know there are two naturally occurring isotopes of Ga.

First of all we will set the fraction for both isotopes

X for the isotopes having mass 68.9257

1-x for isotopes having mass 70.908

we will use the following equation,

68.9257x +  70.908 (1-x) = 69.72

68.9257x +70.908 - 70.908x = 69.72

68.9257x -  70.908x = 69.72 - 70.908

-1.9823x =  - 1.188

x=  1.188/1.9823

x= 0.5993

0.5993 × 100 = 59.93 %

59.93 %  is abundance of Ga-69 because we solve the fraction x.

now we will calculate the abundance of Ga-71.

(1-x)

1 - 0.5993 = 0.4007

0.4007× 100= 40.7 %

40.7 % for Ga-71.

When measuring the volume of a liquid, why is it best to use a measuring container that is narrow?

Answers

so as to minimize the interference of a deeper meniscus, allowing for more accurate measurement

Answer:

n the sciences, the “tools” for measuring the volumes of liquids are generally made from glass, plastic or occasionally metal, although professionals referred to all of them as “glassware.” Scientists, and chemists in particular, have a variety of glassware at their disposal for measuring volumes. The particular piece of glassware chosen in any situation will depend primarily upon two factors: the required volume and the accuracy required for the measurement.

Explanation:

Hope this helps leave a heart c:

5) How do you describe a person who likes
inventing stories?
Plz Help ;_; :v​

Answers

Answer:

One word for this is, raconteur - it means a person skilled in telling anecdotes. anecdotist. narrator,  or storyteller

Explanation:

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