A baseball is thrown a distance of 20 meters. What is its speed if it takes 1 second to cover the distance?

Answers

Answer 1
I think the speed is eiejne7282

Related Questions

what is the soul of water?

Answers

Answer:

soul eater is a social enterprise

Explanation:

they donate a minimum of 10 percent to the soul community . soul water was born from the idea that everyone should be able to enjoy quality drinking tap water

Which object is an insulator?

A. Iron

B. Copper

C. Plastic

D. Salt water ​

Answers

Answer:

c. plastic is an insulator

Explanation:

a and b are metals which are conductors and d contains water which is also a conductor

What is the chemical equation( formula ) of the reaction of photosynthesis

Answers

Answer:

The process of photosynthesis is commonly written as: 6CO2 + 6H2O → C6H12O6 + 6O2.

Explanation:

This means that the reactants, six carbon dioxide molecules and six water molecules, are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules, the products.

HELP ASAP

Describe the function of Cytokinesis in the cell cycle.

Answers

Cytokinesis ensures that one nucleus ends up in daughter cells during cell division

1. What is the name of the ion formed from the sulfur atom?
Sulfuride
Sulfurous
Sulfur
Sulfide

2. Which of the following elements does not form an ion with a charge of +1
A:Sodium
B:Fluoride
C;Potassium
D:Hydrogen

3. The chemical properties of an element are largely determined by____
A:The number of valence electrons they have
B:The number of total protons the element has
C:The number of total ions the element has
D:The number of total electrons the element has

5. How does magnesium obey the octet rule when reacting to form compounds?
A. It gives up electrons
B. Magnesium does not obey the octet rule.
C. It gains electrons
D. It does not change its number of electrons

6. How many electrons does strontium have to give up to achieve a noble gas electron configuration?
0
1
2
3

Answers

Answer:

1 sulfide

2 Fluoride

3 A

5 A

6 2

Help please !
A
B
C
D

Answers

Answer:

the answer is letter B. the entropy

Answer:B (the entropy of the gas will increase, and it will spread out to fill both containers) is the correct answer

true or false: ur hearts a muscle​

Answers

Answer: True

Explanation:

can someone help me with this

Answers

Location A. 0.7g/mL will have a lesser density compared to the other ones, meaning the object will float instead of sink. If the density is higher, like 0.9, then the object will sink until it hit location B, then it would start to float again.

Which of these could create static electricity?
A.Plugging in a vacuum
B.Running a blender
C.Combing one's hair
D.Turning on a car

Answers

c well actually I remember being tought this but I cant remember it 100

C. Combing ones hair


Because it’s like when you rub a ballon on your hair and your hair becomes static. And because if you look at the other options and do process of elimination you would get C.

A- that’s just electricity from a plug in
B- same thing as A
And
D- that’s with a engine and gas

(Hopefully this helped.)

And from google “Using plastic combs and brushes on your hair can cause static electricity, much like that old trick you did as a kid of making your hair stand up by rubbing a plastic balloon on it.”


1. Calculate the amount of heat required for 25.0 grams of water tochange from 10 degrees Celsius to 30 degrees Celsius.

2. 50.0 grams of water at 100 degrees Celsius evaporated to water vapor 2 points
at 100 degrees Celsius. Calculate the amount of heat required for this
conversion.

3. A student measured 15.0 grams of ice in a beaker. The beaker was then
placed on a hot plate where it was heated uniformly for a certain amount
of time. During the melting process of the ice, the student noted that the
temperature was at 0 degree Celsius. When all the ice converted to water,
the final temperature was also at 0 degree Celsius. How much heat was
used to melt the ice?

4. If 5.0 grams of water was cooled from 50 degrees Celsius to 40
degrees Celsius, then calculate the amount of heat released by the water.

5. A certain amount of water used exactly 84.0 Joules of heat energy to
change from 25.0 degrees Celsius to 35 degrees Celsius. How many
grams of water was used?


Please help me

Answers

Answer:

Explanation:

1 )

amount of heat required = mass x specific heat x rise in temperature

= 25 x 4.2 x 20 = 2100 J .

2 )

Amount of heat required

= mass x latent heat of vaporisation

= 50 x 2260 = 113000 J  .

3 )

Amount of heat required in melting the ice

= mass x latent heat of fusion

= 15 x 336 = 5040 J

4)

heat released in cooling water

= mass x specific heat x fall in temperature

= 5 x 4.2 x 10

= 210 J

5 )

amount of heat required = mass x specific heat x rise in temperature

84 = mass x 4.2 x 10

mass = 2 grams .

what are the 3 types of bonds in chemistry? and how can you tell when a chemical has that bond?

Answers

Answer:

Ionic bonding, Covalent bonding, Metallic bonding.

» My memory

A chemical bond is a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds. The bond may result from the electrostatic force of attraction between oppositely charged ions as in ionic bonds or through the sharing of electrons as in covalent bonds. » Wikipedia

asthenosphere
OA.
oceanic continental convergent boundary
B.
oceanic-oceanic convergent boundary
O c.
divergent boundary
D.
transform boundary
Awnser I know if ur right I’ll mark brainlesst

Answers

Answer:C

Explanation:The samples are composed of different proportions of copper and zinc

If a compound begins with a metal, it most likely is a _______ compound

metallic

molecular

covalent

ionic

Answers

Answer:

A

Explanation:

If a compound begins with metal, it is most likely to be a metallic compound. Thus, option A is correct.

The metallic compound has been formed when the metal has been bonded with a metal or more than 1 metal by the ionic or covalent interaction.

The ionic interactions result in between the metal and non-metal or between two metals, and the covalent interactions have been found in the nonmetals.

The molecular compound has been the one that has been formed a molecule. All the compounds are molecular compounds.

Thus, if it starts with metal, it has been most likely to form a metallic compound. Thus, option A is correct.

For more information about the compounds with metal, refer to the link:

https://brainly.com/question/18665430

Select all that apply. Using your periodic table of the elements which chemical symbols indicate an element?

Question 5 options:
O

I

i

Ca

Answers

Answer:

O, I, Ca

Explanation:

how many significant figures are in 0.00970 g?

Answers

Answer:

3

Explanation:

begining 0's are never significant

all numbers 1-9 are always significant

ending 0's are only significant when there is

a decimal.

Urgent !!!!!!!!!! Due today plzzzzz help me

Answers

Answer:

Explanation:

a. H3O+

b.  H3O+

c. CH3C(OH2)+

Chemical and physical element properties are determined by their valence electrons. How do you describe metals with only one valence
electron?
A .highly reactive
B. poor conductors of electricity
C. reactive with other metals
D. likely to gain more electrons

Answers

Answer:

B

Explanation:

Chemical and physical element properties are determined by their valence electrons metals with only one valence electron are poor conductors of electricity. Option B is correct.

What are valance electrons?

Valence electrons are the electrons present at the valance shell or orbit of the atom and always take part in the chemical reaction or reaction with other metals and can conduct electricity.

If the atom contains only one valance electron in the outermost shell or valance shell then it cannot conduct the electricity properly due to the fewer number of electrons.

Therefore, Option B is correct. Chemical and physical element properties are determined by their valence electrons metals with only one valence electron are poor conductors of electricity.

Learn more about valance electrons, here:

https://brainly.com/question/866518

#SPJ2

The most stable group of elements on the periodic table is the?
A) halogens
B) noble gases
C) alkali earth metals
D) alkaline earth metals

Answers

Answer:

Noble Gases B

Explanation:

The noble gases are the chemical elements in group 18 of the periodic table. They are the most stable due to having the maximum number of valence electrons their outer shell can hold. Therefore, they rarely react with other elements since they are already stable.

B) Noble gases
Most stable because they have the maximum number of valence electrons their outer shell can hold

How do I find the formula for Phosphorus Tetroxide

Answers

Formula= P4O6
You are going to want to flip the elements subscripts with one another.
P6O4
P will just stay as phosphorus, but since oxygen has 4 atoms, itbwill become tetroxide

i need help with my assignment asap​

Answers

1) taking drugs to prevent diseases

2) liver cirrhosis

3) valve

what are most of the needed formulas to find the molar volume and the molar concentration (Cm) 11th grade chemistry​

Answers

Answer:

Explanation:

molar volume=moles*given volume

for molar concentration we use two formulas molarity and molality

molarity=no of moles/volume

molality=no of moles/kilogram

heyyyyyyy......................

Answers

Answer:

helllllooooooo hi how is life

Answer:

hiiii

Explanation:

A laboratory hydrogen generator collects the gas produced by bubbling it through water. The total pressure of the gas collected is 751 mmHg. The temperature is 34 °C, at which water vapor pressure is 40.0 mmHg. Calculate the partial pressure of the hydrogen.

Answers

Answer:

[tex]711\ \text{mmHg}[/tex]

Explanation:

[tex]P_{total}[/tex] = Total pressure = 751 mmHg

[tex]P_{water}[/tex] = Vapor pressure = 40 mmHg

[tex]P_{gas}[/tex] = Pressure of gas

The total pressure in a system is given by Dalton's law

[tex]P_{total}=P_{gas}+P_{water}\\\Rightarrow P_{gas}=P_{total}-P_{water}\\\Rightarrow P_{gas}=751-40\\\Rightarrow P_{gas}=711\ \text{mmHg}[/tex]

The partial pressure of the hydrogen is [tex]711\ \text{mmHg}[/tex]

How much water (H2O ) would form if 4.04 g of hydrogen (H2) reacted with 31.98 g of oxygen (O2 )?
(2H2 + O2 2H2O)

Answers

Answer:

Mass = 36 g

Explanation:

Given data:

Mass of water formed = ?

Mass of hydrogen = 4.04 g

Mass of oxygen = 31.98 g

Solution:

Chemical equation:

2H₂ + O₂   →   2H₂O

Number of moles of hydrogen:

Number of moles = mass/molar mass

Number of moles = 4.04 g/ 2 g/mol

Number of moles = 2.02 mol

Number of moles of oxygen:

Number of moles = mass/molar mass

Number of moles = 31.98 g/ 32 g/mol

Number of moles = 1.0 mol

Now we will compare the moles of water with hydrogen and oxygen.

                O₂         :         H₂O

                 1           :           2

                H₂         :         H₂O

                 2          :          2

               2.02       :      2.02

Number of moles of water formed by oxygen are less thus oxygen will limiting reactant.

Mass of water:

Mass = number of moles × molar mass

Mass = 2 mol × 18 g/mol

Mass = 36 g

A gas occupies 3.5L at 2.5 kPa pressure. What is the volume at 100 mmHg at the same temperature? Be sure to
show the setup and the final answer and unit.
Show Your Work

Answers

The volume at 100 mmHg : 0.656 L

Further explanation

Boyle's Law  

At a constant temperature, the gas volume is inversely proportional to the pressure applied  

[tex]\rm p_1V_1=p_2.V_2\\\\\dfrac{p_1}{p_2}=\dfrac{V_2}{V_1}[/tex]

V₁=3.5 L

P₁=2.5 kPa=18,7515 mmHg

P₂=100 mmHg

[tex]\tt \dfrac{18.7515}{100}=\dfrac{V_2}{3.5}\\\\V_2=\dfrac{18.7515\times 3.5}{100}=0.656~L[/tex]

PLEASE HELP ME ANSWER THE TWO MULTIPLE CHOICE QUESTIONS!!!

ITS FOR CHEM:(

I’LL GIVE BRAINIEST:)

Answers

Answer:

4.D. 2KJ

5.B. close to 0 degree celsius

Explanation:

heat absorbed= heat given out

100g * 4.2 * (x-0)= 400g * 4.2* ( 20-x) where x is the new temp reached

then x= 20

i.e. the temperature of ice increases to 5 degree celsius and the temperature of water decreases to 5 degree celsius .

hope it helps

PLEASE HELP!
How many moles of NaOH would produce 10 moles of water in this reaction?
2NaOH + H2SO4 → Na2SO4 + 2H20

Answers

Answer:

The correct answer is 10

Compare the viscosity property of solid and liquid. ​

Answers

Answer

There is nothing like viscosity in solid because most of the solids usually have a rigid body. This is due to strong intermolecular forces. And it is due to this strong force between the molecules that they are unable to move and they remain fixed at their position. Some solids such as graphite which have layered structure, don't possess the property of viscosity, because of the strong force between the layers.

Explanation:

Viscosity is the property of a fluid that opposes the relative motion between two surfaces of the fluid that are moving at different velocities. In simple terms, viscosity means friction between the molecules of fluid.

FOR EXAMPLE

water is "thin", having a low viscosity, while vegetable oil is "thick" having a high viscosity

which statement is true of the particles that make up a substance?
a. Particles in a liquid and particles in a solid have the same amount of energy
b. Particles in a solid have more energy than particles in a gas
c. Particles in a gas have more energy than particles in a liquid
d. Particles in a liquid have more energy than particles in a gas.

Answers

Answer: particle in gas have more energy than the particles in a liquid

Explanation: this is because the amount of energy is directly proportional to how random the system is. gaseous molecules are in a more constant random motion than the liquid molecules

​Which of the following structures are found in eukaryotes, but not prokaryotes?
A) Cytosol

B) Cilia

C) Golgi body

Answers

Answer:

B

Explanation:

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Use a composite function to find the priceof the car: C. if the discount is applied before the rebate;D. if the rebate is applied before the discount so sometimes i put a question with lots of points and a lot of people come up just for the points and not to help me just to let these people know i report all the people who do it so what you do is not worth it 'cause when the person report you lose the points you earned so I don't see any point in it and why .do not do with others what you do not like that when is do with you When the Sun is in its maximum solar cycle, which of the following occurs?One CME is produced every five daysThere is an unpredictable amount of energyUp to three CMEs are created in one dayProtons and neutrons accelerate Ill give the brainlest answer! Is this relation a function? Please help PLEASE HURRY THANK YOUAlthough the Atlantic slave trade was abolished in 1809, the number of enslaved persons increased dramatically during the first half of the nineteenth century. What factors contributed to this growth? How did enslaved persons resist slavery? PLEASE HELP I ONLY HAVE 17 MORE MINUTES!!!! Answer the following questions about the directors choices in adapting Stranded into a staged performance. Select Yes or No.The sweltering afternoon sun beat down mercilessly upon the road, browning their faces and the sad, parched grasses along the roadside. Steves boots crunched heavily along the gravel shoulder. With each step, the noise rankled slightly more. Ramon wiped a trickle of sweat from his temple and shifted the cat carrier to his right hand. (Its occupant made a single vocal protest.) And why, he huffed testily, is it my job to carry your cat?A few steps behind, Steve rolled his eyes and groaned. Oh for the love of Pete! Fine, give her to me. 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