When
or more objects come in contact with eachother this is called
contact force.

Whenor More Objects Come In Contact With Eachother This Is Calledcontact Force.

Answers

Answer 1
The word to fill in the blank is 2. 2 or more objects come in contact is called contact force.
Answer 2

two

Explanation:

When two or more objects come in contact with each other this is called contact force


Related Questions

Which of the following is true about the behavior of an organism?
A.
The behavior of an organism is influenced only by the traits it inherits from its parents.
B.
The behavior of an organism is influenced only by the environment in which it lives.
C.
The behavior of an organism is not influenced by either its heredity or its environment.
D.
The behavior of an organism is influenced by both its heredity and its environment.

Answers

Answer:

C. The behavior of an organism is not influenced by either its heredity or its environment.

which one of the following is not a pure substance? A. Diamond B. water C. Oxygen D. Milk​

Answers

Answer:

Milk

Explanation:

Main compounds of milk are lactose and casein. And it is also called a colloidal mixture (i.e. in which one substance of microscopically dispersed insoluble or soluble particles is suspended throughout another substance). Therefore milk is regarded as a mixture not as a pure substance. So this is the required answer.

A gas was at STP. If the pressure increased to 3.5 atm, what would the new
temperature be?

Answers

Answer:

T₂  = 956.0 K

Explanation:

Given data:

Initial temperature = 273.15 K

Initial pressure = 1 atm

Final pressure = 3.5 atm

Final temperature = ?

Solution:

According to Gay-Lussac Law,

The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.

Mathematical relationship:

P₁/T₁ = P₂/T₂

Now we will put the values in formula:

1 atm / 273.15 K = 3.5 atm / T₂

T₂  = 3.5 atm ×273.15 K / 1 atm

T₂  = 956.0 atm. K /  1 atm

T₂  = 956.0 K

Hypothesis: This is your testable statement. Usually an "If, then"
statement.
Fill in the blank using what you know about cell structures. Only put
one structure.
If the cell has
____, then it is a plant cell.

Answers

Chloroplast or cell wall... hope this helps

PLEASE HELP!!


Ecosystem services are benefits that healthy, diverse ecosystems provide to humans. List some ecosystem services provided by a healthy biodiversity on Earth and describe how our lives would be changed without these.

Answers

Answer:

Ecosystem services are indispensable to the wellbeing of all people, everywhere in the world. They include provisioning, regulating, and cultural services that directly affect people, and supporting services needed to maintain the other services.

Ecosystem provides water and air which are essential for survival on earth without the presence of these essential things life on earth could not exist.

What is an ecosystem?

Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.

Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.

Learn more about ecosystem,here:

https://brainly.com/question/19267717

#SPJ2

Balance The Equation SHOW WORK
H2 + O2 → H2O
Ca + O2 → CaO
Ca + HCl → CaCl2 + H2

Answers

Explanation:

done.....................

Identify how many of the original parent nuclei remain after three half-lives

Answers

Answer:

yes

Explanation:

i did the test

1. Compare atoms, molecules, compounds.

Answers

Answer: Molecules contain two or more atoms and are held together by covalent bonds, whereas compounds are held together by ionic bonds. Two or more elements bonded together through ionic attraction. Compounds contain two or more atoms and are held together by ionic bonds, whereas molecules are held together by covalent bonds.

Explanation:

Water that flows over land and has not been absorbed into the ground is called

Answers

Answer:

its called a runoff :)

Explanation:

hope this helpssss <3

A volume of 2.15 mL of Oxygen was collected in the lab at a temperature of 17 °C and 740.2 mmHg. After a day, the volume of the gas has become 2.21 mL and the barometer reading (for air pressure) had not changed. What is the new temperature in the lab
(in °C)?

Answers

The new temperature (T₂) in the lab = 25.09 °C

Further explanation

Given

V₁=2.15 ml

T₁ = 17 + 273 = 290 K

P = 740.2 mmHg

V₂ = 2.21 ml

Required

The new temperature (T₂)

Solution

Charles's Law

When the gas pressure is kept constant, the gas volume is proportional to the temperature

[tex]\tt \dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}[/tex]

Input the value :

T₂=(T₁.V₂)/V₁

T₂=(290 K x 2.21 ml)/2.15 ml

T₂=298.09 K = 25.09 °C

Is calcium more reactive than lead?

Answers

Answer:

Yes Calcium is more reactive than Lead.

Explanation:

Answer:

Yeah.

Calcium is in group II and lead is in group IV.

Since reactivity decreases from left to right of the periodic table, calcium reacts severely than lead

Which of the following is a unit of time?

km
hr
km/hr
mi

Answers

Answer:

hr

Explanation:

because it's short for hour

What is a by-product of a nuclear power plant?

Answers

Answer:

There are four categories of byproduct material: Radioactive material that results from the fissioning, or splitting apart, of enriched uranium or plutonium in nuclear reactors. Examples include cobalt-60, cesium-137 and iridium-192. Tailings or waste produced by processing uranium or thorium from ore.

35.0 grams of nitrogen gas reacts with 60.0 grams of hydrogen gas: N2 + 3H2--> 2NH3
a) Identify the limiting reagent:
b) Calculate the grams of ammonia formed:
c) Calculate the grams of excess reactant formed:

Answers

Explanation:

Moles of N2 = 35.0g / (28g/mol) = 1.25mol

Moles of H2 = 60.0g / (2g/mol) = 30.0mol

Since 1.25mol * 3 < 30.0mol, nitrogen is limiting.

Moles of NH3 = 1.25mol * 2 = 2.50mol.

Mass of NH3 = 2.50mol * (17g/mol) = 42.5g.

30.0mol - 1.25mol * 3 = 26.25mol.

Excess mass of H2

= 26.25mol * (2g/mol) = 52.5g.

In multicellular organismscells that become specialized to perform a specific function are called?
A. Organelle
B. Tissue
C. Organ
D. Epithelial

Answers

The cell proliferates to produce many cells that result in multicellar organism.

answer

Select the correct location on the image.
The movement of which layer of Earth drives the motion of the plates on Earth's crust?

Answers

Answer:

Upper mantle

Explanation:

If i'm wrong I'm SO sorry. Please forgive me.

Friendly guy that likes to help.

(no italics this time kek)

Use your understanding of the ideal gas law to identify the correct relationships among the variables. Pressure is . Temperature is . Volume is . Moles areUse your understanding of the ideal gas law to identify the correct relationships among the variables. Pressure is . Temperature is . Volume is . Moles are

Answers

Answer:

Pressure is inversely proportional to the volume of a gas at constant temperature and number of moles

Temperature is directly proportional to volume at constant pressure and number of moles

Volume is directly proportional to the number of moles of a gas at constant temperature and pressure

Explanation:

The ideal gas law is derived from a combination of the Boyle's, Charles' and Avogadro's law of gases.

Boyle's law states that at constant temperature, the volume of a given mass of gas (number of moles of gas is constant) is inversely proportional to the pressure exerted by the gas.

V ∝ 1/P (at constant n, T)

Charles'law states that at constant pressure, the volume of a given mass of gas (constant amount, n) is directly proportional to the temperature of the gas; V ∝ T (at constant n, P)

Avogadro’s law states that at constant temperature and pressure, the volume of a given mass of gas is directly proportional to the number of moles of gas present; V ∝ n(at constant T, P)

Combining the three equations gives the following relationship: V ∝ nT/P

By inserting a proportionality constant called the molar gas constant, R, in the relationship above, the ideal gas equation is derived as follows:

V = nRT/P or PV = nRT

Answer:

the third one

Explanation:

Can you pls help me. TY!

Answers

i think it’s 220 km.

The reaction below will occur in a gaseous system at STP:
6 NO (g) + 4 NH3 (g) —> 5 N2 (g) + 6 H20 (g)
What volume of nitrogen gas will be produced from 15.0 L of nitrogen monoxide gas?
12.5 L
18.0L
15.0 L
22.5 L

Answers

Answer:

V = 12.5 L

Explanation:

Given data:

Volume of NO = 15.0 L

Temperature and pressure = standard

Volume of nitrogen gas produced = ?

Solution:

Chemical equation:

6NO + 4NH₃    →     5N₂ + 6 H₂O

Number of moles of NO:

PV = nRT

n = PV/RT

n = 1 atm × 15.0 L / 0.0821 atm.L /mol.K × 273.15 K

n = 15.0 atm.L / 22.43 atm.L /mol

n = 0.67 mol

now we will compare the moles of No and nitrogen gas.

              NO           :         N₂

               6             :          5

              0.67         :         5/6×0.67 = 0.56

Volume of nitrogen gas:

 PV = nRT

1 atm × V = 0.56 mol ×  0.0821 atm.L /mol.K × 273.15 K

V = 12.5 atm.L / 1 atm

V = 12.5 L

3S8 + 8 OH- + 8 S3 + 4 HOOH
In an experiment, a student studies the kinetics of the reaction represented above and
obtains the data shown in the following table.
Initial [S
Initial
Initial (OH)
Experiment
Reaction Rate
(M)
(M)
(M/s)
Trial 1
0.100
0.0100
0.699
Trial 2
0.300
0.0100
2.10
Trial 3
0.300
?
4.19
Use the data in the table and determine the order of the reaction with respect to Sg.
O first order
O zero order
O second order
O third order

Answers

Answer:

Second order

Explanation:

We could obtain the order of reaction by looking at the table very closely.

Now notice that in experiment 1 and 2, the concentration of [OH^-] was held constant while the concentration of [S8] was varied.  So we have;

a situation in which the rate of reaction was tripled;

0.3/0.1 = 2.10/0.699

3^1 = 3^1

Therefore the order of reaction with respect to  [S8] is 1.

For [OH^-], we have to look at experiment 2 and 3 where the concentration of [S8] was held constant;

x/0.01 = 4.19/2.10

x/0.01 = 2

x = 2 * 0.01

x = 0.02

So we have;

0.02/0.01 = 2^1

2^1 = 2^1

The order of reaction with respect to  [OH^-] = 1

So we have the overall rate law as;

Rate = k[S8]^1  [OH^-] ^1

Overall order of reaction = 1 + 1 = 2

Therefore the reaction is second order.

write a short notes on solubility product principle and its application?​

Answers

Yes ofc ajejehshahshs

suppose the burner under the pan of boiling water is turned to a higher settings. how will this affect the temperature of the water in the pan?​

Answers

Answer:

I would say that the temp would increase but the liquid would turn into a gas faster. You can always keep heating liquid until it turns into a gas and is no longer in the pan.

The chart shows the percentage of different elements in the human body. Which element is the most prevalent in the human body?

nitrogen
hydrogen
carbon
oxygen

Answers

Answer:

D : oxygen

Explanation:

i took the test <3 good luck

Answer:

its d

Explanation:

P.S. This is a science question not a chemistry.

When the tilt of the Earth causes the sun’s energy/light to be spread out over a larger area, temperatures are ____________ causing ____________ to occur.

A. the same, Spring
B. warmer, Summer
C. cooler, Winter

Answers

Answer:

B) When the tilt of the Earth causes the sun’s energy/light to be spread out over a larger area, temperatures are ______warmer______ causing _____Summer_______ to occur.

A force calculated to be 25 Kg m/s2 is _______ N

Answers

Answer:

25N

Explanation:

The force calculated to be 25kgm/s² has a value of 25N.

To solve this problem, we need to consider the unit of force. The unit of force is expressed in N, newtons.

  To find force;

           Force  = mass x acceleration

            Unit of mass  = kg

                      acceleration  = m/s²

 So;

        1N  = 1kgm/s²

Therefore 25kgm/s² is the same as 25N

Why does effective watershed management require the cooperation of everyone in the
watershed?

Answers

Answer:

Effective watershed management requires the cooperation of everyone located near the watershed because if one person doesn't cooperate, it would fail.

Effective watershed management requires the cooperation of everyone located near the watershed since if one person doesn't cooperate, it should be fail.

What is effective watershed management?

It refers to the management that decreased the energy which is required for water treation, the water should be moved, and there should be the wastage of the water around. Also, it decreased the size and the infrastructure system should be decreased

Therefore, Effective watershed management requires the cooperation of everyone located near the watershed since if one person doesn't cooperate, it should be fail.

Learn more about water here: https://brainly.com/question/20671529

What is the percent increase in wind energy from 2006 to 2010 % increase= (( final number - initial number) divided by initial number) x100
a- 4%
b- 232%
c-7%
d-175%

Answers

Answer:

b- 232%

Explanation:

Renewable energy consumption by energy source in 2006 = 6.659 quadrillion Btu

Renewable energy consumption by energy source in 2010 = 8.049 quadrillion Btu.

In 2006, wind energy = 4%

∴ wind energy = 4% x 6.659 = 0.26636

In 2010, wind energy = 11%

∴ wind energy = 11% x 8.049 = 0.88539

∴ Percent increase = (final number - initial number) ÷ (initial number) x 100

% increase = [(0.88539 - 0.26636) ÷ 0.26636} x 100 = 232.4035% ≈ 232%.

Answer = 232%.

6. Is the following equation balanced or
unbalanced?
Fe + S — > FeS
a) Balanced
b) unbalanced

Answers

The charge of Fe can either be +2 or +3 and the charge of S is -2 so it would depend one which charge Fe. If the charge is +2 than yes it’s balanced, if +3 then no

Another name for the water cycle is the

Answers

Answer: Hydrologic Cycle!

Hydrologic cycle
Hope this help

Based on the fossil records, what is true
concerning populations of organisms that lived on
Earth?
A. Most organisms are found in the earliest rock
layers.
B. Most organisms stayed the same over time.
C.
Most organisms that lived on Earth are
extinct.

Helpppppp

Answers

Answer:

C

Explanation:

The reason why is beacause most of the dino's and other spices that were here before humanity are exctinct. Some are still alive and have evovled into something greater such as a crocidile, and many other repitlians

Hope this helps!

Pls mark brainlest!

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