You are pulling an object up 1 m with a 5 m ramp. You pull
with 20 N of force.
How much does the object weigh?

Answers

Answer 1

For an object  1 m long with a 5 m ramp, You pull with 20 N of force, The weight of the object is mathematically given as

W= 5714.3 N

What is the weight of the object ?

Generally, the equation for the weight   is mathematically given as

W = mg = F/Sinθ

W= 20/Sin0.2

W=20/ 0.0035

W= 5714.3 N

In conclusion, the weight of the object

W= 5714.3 N

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Related Questions

Consider the two‑step synthesis of 2‑hydroxy‑2,4‑dimethylpentanoic acid using the reagents provided

Answers

The two step synthesis 2‑hydroxy‑2,4‑dimethyl pentanoic acid of involves compounds as represented in the attached image.

Two step synthesis of organic compounds

From the task content:

It therefore follows that the Starting compound A and intermediate compound B are as represented in the attached image.

Compound A is 4-methyl pentan-2-one

Remarks: The reagents provided are, H3O, Potassium cyanide and Hydrogen cyanide.

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Why can water molecules store energy in more ways than neon atoms?


Select the correct answer.


A. Water molecules can rotate, but neon atoms cannot.

B. Water molecules can collide with other particles more than neon atoms can.

C. Water molecules can change their speed, but neon atoms cannot.

D. Water molecules can absorb heat more easily than neon atoms can.

Answers

Answer:

B . Water molecules can collide with other particles more than neon atoms can.

How many molecules of water are made from 2 molecules of h2?

Answers

Answer:

Given the balanced reaction, note that there are two molecules of water produced for every two molecules of H2

Explanation:

There are two molecules of water is produced from 2 molecules of hydrogen.

What is hydrogen?

It is the lightest element which is colorless, tasteless, and non-toxic.

Water is made up of hydrogen and oxygen, with a good amount of heat to carry out the reaction.

The equation is

[tex]\rm 2H_2O + O_2 = 2H_2O[/tex]

It is clear that two molecules of hydrogen produce two molecules of water.

Thus, there are two molecules of water is produced from 2 molecules of hydrogen.

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The molar mass of water (h2o) is 18.0 g/mol. a sample of water has a mass of 18.0 g. how many moles of water are contained in this sample? 1.00 mole 18.0 moles 36.0 moles 324 moles

Answers

The moles of water are contained in the given sample is 1 mole.

How do we calculate moles?

Moles of any substance will be calculated by using the below formula:

n = W/M , where

W = required mass

M = molar mass

Given molar mass of H₂O = 18.0 g/mol

Given mass of H₂O = 18.0 g

Moles of H₂O = 18.0 g / 18.0 g/mol = 1 moles

Hence option (1) is correct.

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Answer:

A. 1.00 Mole

Explanation:

edg 2023

H2(g) + Cl2(g) ⟶ 2HCl(g)
If 3.7 liters of Cl2 are used for this reaction, how much HCl will be formed? Assume there are enough reactants to complete the reaction and assume the reaction occurs at STP.

Answers

The volume of hydrochloric acid, HCl produced from the reaction when 3.7 L of Cl₂ are used is 7.4 L

Balanced equation

H₂ + Cl₂ —> 2HCl

Since the reaction occurs at standard temperature and pressure (STP), we can say that:

From the balanced equation above,

1 L of Cl₂ reacted to produce 2 L of HCl

How to determine the volume of HCl produced

From the balanced equation above,

1 L of Cl₂ reacted to produce 2 L of HCl

Therefore,

3.7 L of Cl₂ will react to produce = 3.7 × 2 = 7.4 L of HCl

Thus, the volume of HCl produced from the reaction is 7.4 L

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6.
The temperature of a 250.0 g ball of iron increases from 19 C to 32 C. How much heat
did the iron ball gain?
The temperature of a 250.0 g ball of iron increases from 19 C to 32 C. How much heat
did the iron ball gain?

Answers

Q = mc∆T.

the specific heat capacity of iron is 0.450. 250 × 0.450 × (32-19) = 1462.5J

Select all the correct answers.
What do scientists use to communicate extremely small measurements?
unit prefixes
A. base units
B. physical models
C. graduated cylinders
D. scientific notation

Answers

D

This is when very large or very small numbers must be written. They come in the format or 5.43 x 10^3 or can be written as 8.26E6. The numbers will vary depending on your number.

What does the energy hill represent on an energy diagram?
A. The potential energy gained by the products when a reaction
happens
B. The potential energy the reactants have stored in molecular bonds
O C. The additional potential energy the reactants must gain in order to
react
D. The final amount of potential energy of the products of the
reaction

Answers

B.The potential energy the reactants have stored in molecular bonds

What is ∆H for the reaction of sulfur dioxide with oxygen?


2SO2(g) + O2(g) → 2SO3(g)


(∆Hf0 SO2(g) = –296.8 kJ/mol; ∆Hf0 SO3(g) = –395.7 kJ/mol)

A.)–98.9 kJ

B.)–197.8 kJ

C.)1.385 × 103 kJ

D.)197.8 kJ

Answers

Answer:

B.) –197.8 kJ

Balanced equation : 2SO(g) + O(g) → 2SO(g)

Given:

SO₂(g) = –296.8 kJ/molSO₃(g) = –395.7 kJ/mol

================================================================

products : 2 ( –296.8 ) + O₂ = -593.6 kJ/mol + Oreactant : 2 (  –395.7 ) = -791.4 kJ/mol

products energy = reactant energy

-593.6 + O₂ = -791.4

O₂ = -791.4 - ( -593.6)

O₂ = –197.8 kJ

Describe the process used to balance an equation?

Answers

Answer:

Explanation:

When you balance a chemical equation, you change coefficients. You never change subscripts. A coefficient is a whole number multiplier. To balance a chemical equation, you add these whole number multipliers (coefficients) to make sure that there are the same number of atoms on each side of the arrow

abcdefghijklmnopqrstuvwxyz

Answers

Answer:

dam aye someone give this person a medal

Explanation:

Cyanide and water react in a proton transfer reaction to form hydrogen cyanide and hydroxide

Answers

The proton transfer reaction between Cyanide and water can be written as; X^- + H2O -----> HX + OH^-

What is a proton transfer reaction?

A proton transfer reaction is one in which a proton is moved from one chemical specie to another.It is in fact and acid - base reaction in the Brownstead - Lowry sense.

The proton transfer reaction between Cyanide and water can be written as(Let the cyanide ion be shown as X);

X^- + H2O -----> HX + OH^-

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The proton transfer reaction to form hydrogen cyanide and hydroxide is

X⁻ + H₂O → HX + OH⁻

What is a proton transfer reaction?

A reaction in which a proton H⁻ is removed from one species and accepted by another species.

An example of a proton transfer is Brønsted acid reacting with a Brønsted base.

Thus, the proton transfer reaction to form hydrogen cyanide and hydroxide is X⁻ + H₂O → HX + OH⁻

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60 points please help me i will appreciate it!

Answers

Answer:

[tex]\huge\boxed{\sf v = 62.7 \ L}[/tex]

Explanation:

Given Data:

Mole = n = 3.38 mol

Temp = t = 269 K

Pressure = 1.19 atm

Gas constant = R = 0.08206 L atm K⁻¹ mol⁻¹

Required:

Volume = v = ?

Formula:

Pv = nRT

Solution:

Rearranging formula

[tex]\displaystyle v = \frac{nRT}{P} \\\\v = \frac{(3.38)(0.08206)(269)}{1.19} \\\\v = \frac{74.6}{1.19} \\\\v = 62.7 \ L\\\\\rule[225]{225}{2}[/tex]

if 146.5 g of chromium(lll) chlorate decomposes, what mass of oxygen can be produced?

Answers

Answer:

The Equation for this reaction is as follow,

                               2 Cr(ClO₃)₃    →    2 CrCl₃  +  9 O₂

According to eq,

      604.68 g (2mole) of Cr(ClO₃)₃ produces  =  288 g (9 moles) of O₂

So,

                 146.5 g of Cr(ClO₃)₃ will produce  =  X g of O₂

Solving for X,

                             X  = (146.5 g × 288 g) ÷ 604.68 g

                    X  =  69.77 g of O₂

A mixture of three gases has a total pressure of 94.5 kpa. if the partial pressure of
the 1st gas is 65.4 kpa and the partial pressure of the 2nd gas is 22.4 kpa, what is the
partial pressure of the 3rd gas of the mixture?

Answers

Answer: 6.7 kPa

Explanation:

Pressure Total = P(partial 1) + P(partial 2) + P(partial 3) →

94.5 kPa = 65.4 kPa + 22.4 kPa + P(partial 3) →

6.7 = P(partial 3) :)

Given:-Partial pressure of 1st gas ,P[tex]_1[/tex]= 65.4 kpapartial pressure of 2nd gas ,P[tex]_2[/tex]= 22.4 kpaTotal pressure,P[tex]_o[/tex] = 94.5 kpa

To Find :-partial pressure of the 3rd gas,P[tex]_3[/tex]

Solution:-

According to the Dalton's law of partial pressures the total pressure exerted by a mixture of gases is equal to the sum of the partial pressures exerted by each individual gas in the mixture.

So, P[tex]_o[/tex] = P[tex]_1[/tex]+ P[tex]_2[/tex]+ P[tex]_3[/tex]

[tex]\longrightarrow[/tex]94.5 = 65.4+ 22.4 + P[tex]_3[/tex]

[tex]\longrightarrow[/tex]94.5 = 87.8+ P[tex]_3[/tex]

[tex]\longrightarrow[/tex] P[tex]_3[/tex] = 94.5 - 87.8

[tex]\longrightarrow[/tex]P[tex]_3[/tex] = 6.7 kpa

Therefore, partial pressure of the 3rd gas of the mixture is 6.7 kpa .

The use of evaporation and condensation to separate the partsof a mixture is called _____

Answers

Answer: Evaporation Condensation is used to seperate the parts of a mixture

Explanation: This is because it is the first order of the distilation process

The use of evaporation and condensation to separate the parts of a mixture is called distillation.

What is distillation?

Separating salt water to produce pure water and salt is an example of a simple distillation mixture.

The water begins to evaporate during the distillation process, and the vapor cools down to form pure water.

A second container is used to collect the pure water.

Thus, the use of evaporation and condensation to separate the parts of a mixture is called distillation.

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A chemist is studying a chemical compound that
has equal numbers of carbon atoms and hydrogen atoms. She calculates that the
carbon atoms have a mass of 24 grams. What is the mass of the hydrogen atoms?
Explain your reasoning.

Answers

It should be 24 they both have to be equally the same

The mass of hydrogen atoms in the compound would be 2 grams.

Stoichiometric calculation

The carbon atoms in the compound have a mass of 24 grams.

One carbon atom has a mass of 12 grams. Thus, there are two (12 x 2 = 24) carbon atoms in the compound.

This means that there are also two hydrogen atoms in the compound. One hydrogen atom weighs 1 gram. Hence, the mass of the hydrogen atoms in the compound will be 2 grams.

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Which equation shows conservation of both mass and charge?
(1) Cl2 + Br→ Cl- + Br,
(2) Cu + 2 Agt → Cu2+ + Ag
(3) Zn + Cr3+ → Zn2+ + Cr
(4) Ni + Pb2+ → Ni2+ + Pb ​

Answers

The equation that shows conservation of both mass and charge is:

(4) Ni + Pb²⁺ → Ni²⁺ + Pb

What do conservation of mass and conservation of charge stand for?Conservation of mass: there is the same mass, i.e. same number of atoms, in the reactants and in the products.Conservation of charge: there is the same electrical charge in the reactants and in the products.

Which equation shows conservation of both mass and charge?

(1) Cl₂ + Br → Cl⁻ + Br

No, the equation does not show conservation of mass nor charge.

(2) Cu + 2 Ag⁺ → Cu²⁺ + Ag

No, the equation does not show conservation of mass.

(3) Zn + Cr³⁺ → Zn²⁺ + Cr

No, the equation does not show conservation of charge.

(4) Ni + Pb²⁺ → Ni²⁺ + Pb

Yes, the equation show conservation of mass and charge.

The equation that shows conservation of both mass and charge is:

(4) Ni + Pb²⁺ → Ni²⁺ + Pb

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A box is pushed across the floor for a distance of 5 metters with a force of 50N in 5 seconds. a. how much work is done? b. what is the power. also what formulas are used.​

Answers

Answer:

50W

Explanation:

The formula and is

W = F × s

(force x distance)

W= 50 N× 5 m =250 N m=250 J

Done in 5 seconds the power is

p

=

W

t

where

t

=time

p

=

250

J

5

=

50 J

/s

=50 W

Answer:

Maybe 250 newtons

Explanation:

The addition of a catalyst to a system at equilibrium will increase the rate of:.

Answers

Answer:

forward and reverse reaction rates

Explanation:

meaning the equilibrium is reached faster. So if the reaction is already at equilibrium there will be no effect on a concentration-time or moles-time graph.

ohesion between water molecules contributes to __________ which allows the molecules to stick together and resist outside forces.

Answers

Answer: I believe the answer is surface tension :)

100 pOiNtS
Explain why the vapor pressure of a solution differs from that of the pure solvent
Explain why the freezing point of a solution differs from that of the pure solvent
Explain why the boiling point of a solution differs from that of the pure solvent

Answers

Answer:

Answer one:
Solute particles block some of the ability of liquid particles to evaporate. We can then conclude, solutions of solid solutes typically have a lower vapor pressure than pure solvents.

Answer two:
Solutions freezing points are lower than of the pure solvent or solute because freezing (becoming a solid) creates order and decreases entropy.

Answer three:
The presence of solute particles decreases the vapor pressure of the liquid solvent, this means a higher temperature is needed to reach the boiling point.


Explanation:

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A chemist reacted 12.0 liters of F2 gas with NaCl in the laboratory to form Cl2 gas and NaF. Use the ideal gas law equation to determine the mass of NaCl that reacted with F2 at 280. K and 1.50 atm.

Answers

Answer:

The mass of NaCl needed for the reaction is 91.61 g

We'll begin by calculating the number of mole of F₂ that reacted.

Volume (V) = 12 L

Temperature (T) = 280 K

Pressure (P) = 1.5 atm

Gas constant (R) = 0.0821 atm.L/Kmol

Number of mole (n) =?

PV = nRT

1.5 × 12 = n × 0.0821 × 280

18 = n × 22.988

Divide both side by 22.988

n = 18 / 22.988

n = 0.783 mole

Next, we shall determine the mole of NaCl needed for the reaction.

F₂ + 2NaCl —> Cl₂ + 2NaF

From the balanced equation above,

1 mole of F₂ reacted with 2 moles of NaCl.

Therefore,

0.783 mole F₂ will react with = 0.783 × 2 = 1.566 moles of NaCl.

Finally, we shall determine the mass of 1.566 moles of NaCl.

Mole = 1.566 moles

Molar mass of NaCl = 23 + 35.5 = 58.5 g/mol

Mass of NaCl =?

Mass = mole × molar mass

Mass of NaCl = 1.566 × 58.5

Mass of NaCl = 91.61 g

Therefore, the mass of NaCl needed for the reaction is 91.61 g

Explanation:

Hurrrryyyyy pls




Based on the experiment below, what was the dependent variable?
Bean
Soil
Bean
Soil
Bean
Soil
Height 20.4 cm
Mass: 159
Height: 45.7 cm
Mass: 6.19
Height: 46.5 cm
Mass: 6.69
LI
Daily water 10 mL
A Daily water 50 mL
B
Daily water 100 mL
С

Answers

Answer:

The growth of the plant

Explanation:

The growth of the plant from the bean soil is the dependent variable I believe. This is because it could change depending on many factors for e.g. the amount of light or water

Why is carbon dioxide a necessary part of the atmosphere.

Answers

Answer:

helps to trap heat in our atmosphere

What does a coefficient tell you?

Answers

 The coefficient tells you how many molecules of that substance there is. 

If an object does Not explode, catch fire, or dissolve, how would you describe this object? (Three answers)​

Answers

Non-combustible

eg:-glass,water,stone, Portland cement etc ...

Answer:

Noncombustible

Explanation:

Not explode means no blastsCan't catch fire hence no combustionnot dissolve means not reacts with H and O

So

Some examples are ,glass ,stone

Carson’s class visited a hydroelectric plant on a field trip during their study of energy. The process interested him, and he had the chance to observe it in action. Explain how moving water generates electrical power, and describe where it goes.

Answers

Answer:

look in your science book

Explanation:

Hydroelectricity or hydroelectric power is the electricity generated from hydropower. It is the Hydropower which supplies one sixth of the worlds electricity. Here water in motion is used to generate the electricity.

How water generates electricity?

Hydroelectricity is produced by utilizing the gravitational force of moving water. Hydropower plant requires a dam. The dam is a massive wall that blocks the flow of the river, therefore a lot of water collects behind the dam. Near bottom of the dam, there is an intake from which water is left into the dam.

The device which is used to obtain energy from the moving water is called the turbine.  The turbine is connected by a shaft to the generator. When the water rotates the turbine, electrical energy is generated.

Hydropower plants also have a pumped storage where the water is kept as a reserve for periods of peak power demand.

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Are all black holes the same size? Explain

Answers

Answer:

According to my search, the answer is this.

Black holes come in several different sizes which are defined by their mass. Small black holes are usually the result of a relatively short and violent collapse of a star.

Explanation:

It only has mass. The amount of matter that has fallen into the black hole determines its mass. The more mass/matter a singularity has the larger its event horizon. So, the greater the black hole's mass the larger it is.

Answer: Black holes come in several different sizes which are defined by their mass. Small black holes are usually the result of a relatively short and violent collapse of a star.

Explanation:

What is primarily released in radioactive decay?

Answers

Answer:

When radioactive atoms decay, they release energy in the form of ionizing radiation (alpha particles, beta particles and/or gamma rays). The energy is called ionizing radiation because it has enough energy to knock tightly bound electrons from an atom's orbit. This causes the atom to become a charged ion.

Explanation:

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