what type of forces are unequal forces that cause a change in an object's motion such as speed or direction

Answers

Answer 1

Answer:

Unbalanced forces are not equal, and they always cause the motion of an object to change the speed and/or direction that it is moving.

Explanation:

When two unbalanced forces are exerted in opposite directions, their combined force is equal to the difference between the two forces.

The magnitude and direction of the net force affects the resulting motion

This combined force is exerted in the direction of the larger force

For example, if two students push on opposite sides of a box sitting on the floor, the student on the left pushes with less force (small arrow) on the box than the student on the right side of the box (long arrow).

The resulting action (net force: smaller arrow to the right of the = shows that the box will change its motion in the direction of the greater force

If unbalanced forces are exerted in the same direction, the resulting force (net force) will be the sum of the forces in the direction the forces are applied.

When forces act in the same direction, their forces are added. When forces act in opposite directions, their forces are subtracted from each other.

Unbalanced forces also cause a nonmoving object to change its motion

If there is no net force acting on the object, the motion does not change. If there is a net force acting on an object, the speed of the object will change in the direction of the net force.


Related Questions

Plz help me well mark brainliest if correct!!

Answers

Answer:

A

Explanation:

Waxing means getting bigger.

Waning is.. you guessed it... the exact opposite.

Answer:

a

Explanation:

..........................

explain why people are concerned with the rising level of carbon dioxide in the atmosphere (CO2). What are engineers doing to rebalance the carbon cycle? What can you do to help rebalance the carbon cycle?

Answers

Answer:

People are concerned with the rising level of carbon dioxide in the atmosphere because it could be leading to global warming, which is the observed increase of the Earth's temperatures. Engineers are working to rebalance the carbon cycle by designing appliances, buildings and homes that use less energy.

Explanation:

I don’t know if I’m right..........

How many internal parts or “organelles” are there in a plant cell?
please i need a answer!

Answers

Answer: it has 2 parts

Explanation:

Firstly, plant cells have a cell wall that surrounds the cell membrane, whereas animal cells do not. Plant cells also possess two organelles that animal cells lack: chloroplasts and a large central vacuole

I need help please. No links/ irrelevant answers or I will report you
Data:
2Fe(s) + O2(g) => 2FeO(s) ΔH = -545.6 kJ
4Fe(s) + 3O2(g) => 2Fe2O3(s) ΔH = -1,643.6 kJ
3Fe(s) + 2O2(g) => Fe3O4(s) ΔH = -1,117.7 kJ

Given the data above, determine the heat of reaction, ΔH, for the reaction:
2 Fe3O4(s) => 2 Fe2O3(s) + 2 FeO(s)

Answers

Answer:

ΔH = 46.2 kJ

Explanation:

Hello there!

In this case, according to the given set of reactions and the required one, it is possible to apply the Hess' rule in order to realize the following manipulations to obtain the required reaction:

1. Keep this reaction as it is.

2Fe(s) + O2(g) => 2FeO(s) ΔH = -545.6 kJ

2. Keep this reaction as it is.

4Fe(s) + 3O2(g) => 2Fe2O3(s) ΔH = -1,643.6 kJ

3. Reverse double this reaction so that we obtain:

2Fe3O4(s) => 6Fe(s) + 4O2(g) ΔH = -(-1,117.7 kJ)*2=2235.4kJ

Add them up to obtain:

2Fe(s) + O2(g) + 4Fe(s) + 3O2(g) + 2Fe3O4(s) => 6Fe(s) + 4O2(g) +2Fe2O3(s) + 2FeO(s)

Simplify common terms to obtain:

2 Fe3O4(s) => 2 Fe2O3(s) + 2 FeO(s)

Therefore, the enthalpy of such reaction is:

ΔH = 2235.4kJ -545.6 kJ -1,643.6 kJ

ΔH = 46.2 kJ

Best regards!

If 74.5 m of oxygen are collected at a pressure of 98.0 kPa, what volume will the gas occupy if the
pressure is changed to 90.4 kPa?

Answers

Answer:

80.8 mL

Explanation:

From the question given above, the following data were obtained:

Initial volume (V₁) = 74.5 mL

Initial pressure (P₁) = 98.0 kPa

Final pressure (P₂) = 90.4 kPa

Final volume (V₂) =?

The final volume of the gas can be by using the Boyle's laws equation as follow:

P₁V₁ = P₂V₂

98 × 74.5 = 90.4 × V₂

7301 = 90.4 × V₂

Divide both side by 90.4

V₂ = 7301 / 90.4

V₂ = 80.8 mL

Thus, the volume of the gas is 80.8 mL

Which of the following statements is true about rain falling from clouds?*

Answers

Answer:

Clouds are not made of liquid water but they hold liquid water, and when the pool of liquid water that fills the inside of clouds gets too large for the cloud to hold, the cloud releases the water as rain. ... Rain does not fall from clouds.

Explanation:

please give me brainlist and follow

Plz help me I am!!!!

Answers

gravity forces earth to move around the sun so A
It’s A. Gravity because of the suns gravitational pull

You are attempting the reduction of quinone with sodium borohydride. After adding the 0.05 g of NaBH4 you note that the solution remains yellow. Following the procedure, you continue to add increments of 0.05 g NaBH4. You note that the yellow color remains even after the addition of 0.10 g of extra NaBH4. Several students around you are experiencing a similar problem. Propose a cause for this and suggest a solution.

Answers

Answer:

When benzoquinone reacts with sodium borohydride, which is yellow in color, white and colorless hydroquinone is formed.

Explanation:

The reaction described below should occur. However, even as we add more sodium borohydride, the color stays yellow. This implies that the solution must contain unreacted benzoquinone. Furthermore, NaBH4 is a kind of hydride (H-), and the reaction starts with the addition of hydride.

The acid oxygen is protonated once more to produce a neutral primary alcohol. As sodium borohydride is a reducing agent, adding more will not cause the benzoquinone to react with it, increasing the amount of NaBH4 will not affect the color of the benzoquinone.

Often, benzoquinone is very vulnerable to solid minerals, acids, and alkalis, causing it to condense and decompose.

N₂ + 3H₂ --> 2NH₃

If 207.0 g of H₂ reacts, what mass of NH₃ is produced?

Answers

Answer:

69mol

Explanation:

The balanced chemical equation given in this question is as follows;

N₂ + 3H₂ → 2NH₃

The above balanced equation shows that 3 moles of hydrogen gas (H2) reacts to produce 2 moles of ammonia (NH3).

To convert the given mass of hydrogen to moles, we use the following formula:

mole = mass/molar mass

Molar mass of H2 = 2g/mol

mole = 207/2

= 103.5mol

If 3 moles of H2 produce 2 moles of NH3,

Then, 103.5mol of H2 will produce 103.5 × 2 / 3

= 207/3

= 69mol

Is c6h4cl2 soluble in water?

Answers

Answer:

slightly but poorly

Explanation:

it is a white crystalline solid that is practically insoluble in water and soluble in ether, chloroform, carbon disulfide, benzene, alcohol and acetone.

Answer the following questions about the solubility of CoCO3(s). The value of Ksp for CoCO3(s) is 1.0 × 10^−10.
A. Calculate the value of [Co2+] in a saturated solution of CoCO3 in distilled water.


B. If 0.10 M of Co2+ is already present in distilled water, calculate the molar solubility of CoCO3(s).


C. Explain why CoCO3 is less soluble in distilled water that already contains Co2+

Answers

Answer:

Attached picture.

Explanation:

(1) Ksp equals the product of [Co 2+][CO3 2-]. CoCO3 is excluded from the equilibrium expression because it is a pure solid. The mole ratio of Co 2+ and CO3 2- is 1:1 so their molar solubilities are the same.

(2) There is an initial concentration of 0.10 M Co 2+ so write that in the "I" row for Co 2+ on the ICE table. When you find the zeros of the quadratic when solving for "s", take the positive value rather than the negative value because concentration cannot be negative.

(3) Extra products will cause the equilibrium to consume products and form reactants. So the reverse reaction will occur faster than the forward reaction. More products mean an increased Q value compared to K, since the numerator of [tex]K = \frac{[products]}{[reactants]}[/tex] increases.

Which sound frequency with a human ear be able to detect? Select ALL correct answers.

100 Hertz

1,000 Hertz

10,000 Hertz

100, 000 Hertz

The answers are 100, 1,000, 10,000 if your are with K12

Answers

Answer:

100 HZ 1,000 HZ 10,000 HZ there you go :)

Answer:

100 hertz, 1,000 hertz, and 10,000 hertz

Explanation:

I took the k12 test :)

HELP ASAP no links or I will report

Answers

Answer:

50 feet

Explanation:

I got it right

Brainliest plz

Answer: 50 feet

Explanation:

You have 1.2 x 10^25 particles of NiCO3. How many grams are present?

Answers

Answer:

2365.0 g

Explanation:

First we convert 1.2 x 10²⁵ particles into moles, using Avogadro's number:

1.2 x 10²⁵ particles ÷ 6.023x10²³ particles/mol = 19.9 mol

Then we convert 19.9 moles of NiCO₃ into grams, using the molar mass of NiCO₃:

NiCO₃ Molar Mass = 118.702 g/mol19.9 mol * 118.702 g/mol = 2365.0 g

Which of the following are diatomic elements? Select all that apply.
A.Hydrogen
B.Boron
C.Bromine
D.Iodine

Answers

Answer:

C

Explanation:

A diatomic element in that list is Bromine

The strength of an acid is affected by the polarity of the bond connected to the acidic hydrogen. The more highly polarized this bond, the more easily the hydrogen is ionized. Electronegative atoms or groups of atoms present in the structure of an acid can act to withdraw electrons and produce additional polarization. Two common groups of acids to which this principle can be applied are oxoacids and carboxylic acids. In the latter group, the length of the hydrocarbon chain in a carboxylic acid has very little effect on acid strength Longer chains may slightly diminish acidity. Bases act as hydrogen ion acceptors because of the unshared electron pass in their structure. Any group present in a base that withdraws electrons makes these electron pairs less available to accept a hydrogen ion. In contrast, any group that can act as an electron donating group such as hydrocarbon groups (usually represented as II) can increase the base strength. Thus, the addition of electronegative atoms or groups of atoms to the structure of a base decreases the base strength and electron donating groups increase base strength. Many common weak bases are derivatives of ammonia, in which H atom(s) of NH_2 are replaced with other groups.
Arrange the following oxoacids in order of decreasing acid strength. Rank from strongest to weakest acid.
HBrO
HClO
HClO3
HClO2

Answers

Answer:

HClO3>HClO2>HClO>HBrO

Explanation:

Hello there!

In this case, in agreement to the given information and the reported acidic dissociation constant (Ka) for these acids, which are shown below:

[tex]Ka_{HBrO}=2x10^{-9}\\\\Ka_{HClO}=3.5x10^{-8}\\\\Ka_{HClO_2}=1.2x10^{-2}\\\\Ka_{HClO_3}>>>>1[/tex]

In such a way, since the Ka of chloric acid, HClO3 is greater than 1, we infer it is a strong acid so it is the strongest, next we have HClO2, then HClO and the weakest would be HBrO as its Ka is the smallest.

Thus, the order would be:

HClO3>HClO2>HClO>HBrO

Best regards!

Calculate the mass (grams) of 0.750 moles of Al2(Cr2O7)3

Answers

Answer:

526g is the mass of this sample

Explanation:

To solve this question we must, as first, find the molar mass of Al₂(Cr₂O₇)₃ using the periodic table. The molar mass is defined as the mass of this compound per mole. With this value we can find the mass in 0.750 moles as follows:

Molar mass Al₂(Cr₂O₇)₃

2Al = 2*26.98g/mol = 53.96g/mol

6 Cr = 6*51.9961g/mol = 311.9766g/mol

21 O = 21*15.999g/mol = 335.979g/mol

53.96g/mol + 311.9766g/mol + 335.979g/mol

= 701.9156g/mol

The mass of 0.750 moles is:

0.750 moles * (701.9156g / mol) =

526g is the mass of this sample

How do organisms get their genes?
ANSWER CAREFULLY!!!

Answers

Answer:

born

Explanation:

they get bornnnnnnnn

Answer:

by their mummy and daddy

Explanation:

if their mummy has blue eyes but their Duddy has brown eyes if the child has brown eyes then the dud has the most dominatetrait

have a good day mate

What frequency does a photon of wavelength 4.5 x 10-4 m have?
A. 6.67 x 1011 Hz
B. 1.47 x 10-30 Hz
C. 2.98 x 10-37 Hz
D. 1.35 x 105 Hz
SUBMIT

Answers

Answer:

6.67* 1011 Hz

Explanation:

a p e x

Answer:

Awnser above is correct

Explanation:

a. 6.67

A gas is contained in a thick-walled balloon. When the pressure changes from ___ kPa to 114 kPa, the volume changes from 0.654 L to 1.32 L and the temperature changes from 596 K to 715 K.​

Answers

Answer: 191.8

Explanation:

Answer:

191.8

Explanation:

I know the answer is correct I got the exact same one :)

Can someone help me I am stuck on this question it would mean the world if u helped me =) have a nice day!

Answers

Deer! They are herbivores:))
a deer is a consumer not a decomposer so therefore the answer is , deer!

NEED HELP ASAP

Imagine that you have a sample of a substance. You cannot physically separate that substance into components. You also cannot chemically separate that substance into components. Which of the following are true about your sample?

The sample is made up of multiple elements. t or f
The sample is made up of one type of atom. t or f
The sample is made up of several types of atoms. t or f
The sample is made up of a single element. t or f

Answers

Answer:

The sample is made up of a single element. t or f

Explanation:

Forgot about the t or f!   Its true.

Dam bro.....

1. T

2. F

3. T

Answer:

i think its the 3 thired one sorry if rong but good luck

Explanation:

The water treatment plant adds chlorine gas to the municipal water supply to
control microorganisms. If a technician adds Cl2 at a rate of 1 mg per liter of water,
what is the molar concentration of chlorine in the drinking water?

Answers

Answer:

1 × 10⁻⁵ M

Explanation:

Step 1: Given data

Concentration of chlorine: 1 mg/L

Step 2: Convert the concentration of chlorine from mg/L to g/L

We will use the conversion factor 1 g = 10³ mg.

1 mg/L × 1 g/10³ mg = 1 × 10⁻³ g/L

Step 3: Convert the concentration of chlorine from g/L to mol/L (molar)

We will use the molar mass of chlorine: 70.91 g/mol.

1 × 10⁻³ g/L × 1 mol/70.91 g = 1 × 10⁻⁵ mol/L = 1 × 10⁻⁵ M

Spiders create their webs on the stems and trunks of trees. The tree is unaffected by the spider web.
1.predation
2.commensalism
3.parasitism
4.mutualism

Answers

Answer:

it would be 2

Explanation:

Spiders create their webs on the stems and trunks of trees. The tree is unaffected by the spider web.

2.commensalism

Which of the following has had the most negative effect on Earth's ecosystems?
A. establishment of air pollution standards.
B. increase in human population
C. recycling glass, plastic, and metals
D. use of natural predators to control pest insects.

Answers

Answer:

B

Explanation:

humans are evil, done a lot of negative effects on ecosystem.

b is the answer to this have a great day

2. According to Newton's second law of motion, in which of these situations is the object
accelerating? a. A book on a shelf b. A rock sitting on the ground c. A helium balloon tied to a
lamppost d. A ball that has been thrown upward

Answers

Answer:

the Answer is A ball that has been thrown upward

In the process of photosynthesis, plants take in carbon dioxide (CO2) from the atmosphere and water (H2O) from the soil. Using the energy of sunlight, plants build molecules of glucose (C6H12O6) and oxygen (O2).

Select one:

a.
Plants absorb Carbon Dioxide which increases the amount of carbon in the atmosphere.

b.
Plants produce Carbon Dioxide which increases the amount of carbon in the atmosphere.


c.
Plants absorb Carbon Dioxide which reduces the amount of carbon in the atmosphere.


d.
Plants produce Carbon Dioxide which reduces the amount of carbon in the atmosphere.

Answers

Answer:

C

Explanation:

thts the right answwer im sure

Answer:

C

Explanation:

They take in carbon dioxide and make an oxygen. That's why they are encouraging people to plant. Less CO2 more oxygen

Based on this information, which hypothesis best predicts how a change to the gene could affect people who do not produce enough lactase?

Answers

Answer:

B

Explanation:

I had same question

Formula mass of Ca(NO2)2

Answers

Answer: 132.1 g/mol

Explanation: 40.08 + 2·(14.01+2·16)

Air pressure is greatest ____ because there are more molecules of air pushing down from above.
a.
at the top of the mountain
c.
in the troposphere
b.
at sea level
d.
in the exosphere


Please select the best answer from the choices provided

Answers

Answer:A

Explanation:

I just know it

Answer:

The correct answer is B

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