Answers
Answer:
D. B, C, A
Explanation:
A. For object A, given the following data;
Mass = 2kg
Net force = 1N
To find the acceleration;
Acceleration = net force/mass
Acceleration = 1/2
Acceleration = 0.5m/s²
B. For object B, given the following data;
Mass = 8kg
Net force = 10N
To find the acceleration;
Acceleration = net force/mass
Acceleration = 10/8
Acceleration = 1.25m/s²
C. For object C, given the following data;
Mass = 7kg
Net force = 7N
To find the acceleration;
Acceleration = net force/mass
Acceleration = 7/7
Acceleration = 1m/s²
Therefore, placing the objects in decreasing order, according to the magnitude of the acceleration they are experiencing is B, C, A
Related Questions
please help. thank youuuu
Determine the [OH−] , pH, and pOH of a solution with a [H+] of 9.5×10−13 M at 25 °C.
Determine the [H+] , pH, and pOH of a solution with an [OH−] of 9.4×10−6 M at 25 °C.
Determine the [H+] , [OH−] , and pOH of a solution with a pH of 5.37 at 25 °C.
Determine the [H+] , [OH−] , and pH of a solution with a pOH of 9.63 at 25 °C.
Answers
Answer:
'See Explanation
Explanation:
Determine the [OH−] , pH, and pOH of a solution with a [H+] of 9.5×10−13 M at 25 °C.
Given [H⁺] = 9.5 x 10⁻¹³M => [H⁺][OH⁻] = 1.0 x 10⁻¹⁴ => [OH⁻] = 1.0 x 10⁻¹⁴/9.5 x 10⁻¹³ = 0.0105M
pH = -log[H⁺] = -log(9.5 x 10⁻¹³) = - (-1202) = 12.02.
pOH = -log[OH⁻] = -log(0.0105) = -(-1.98) = 1.98
Now you use the same sequence in the remaining problems.
_________ is the writer of: ‘Freedom Withdrawal’...
Answers
Answer: Monika Arora
Explanation:
The writer of ‘Freedom Withdrawal’ is Monika Arora. The book was regarding the communal riots that took place in Delhi, India. This led to deaths of people.
Monika Arora withdrew the publication of the book. The book claimed that the violence in Delhi was caused by Muslim students and also the secular activists.
What does pcv means in medical terms
Answers
Answer:
packed-cell volume
Explanation:
The blue colour of the sky results from the scattering of sunlight by air molecules. Blue light has a frequency if about 7.5*10^14Hz
Calculate the energy of a mole of photon associated with this frequency
Answers
Answer: The energy of a mole of photon associated with this frequency is [tex]49.5\times 10^{-20}J[/tex]
Explanation:
The energy and frequency are related by :
[tex]E=N\times h\times \nu[/tex]
E = energy of photon
N = number of moles = 1
h = planks constant = [tex]6.6\times 10^{-34}Js[/tex]
[tex]\nu[/tex] = frequency = [tex]7.5\times 10^{14}Hz[/tex]
[tex]E=1\times 6.6\times 10^{-34}Js\times 7.5\times 10^{14}s^{-1}=49.5\times 10^{-20}J[/tex]
The energy of a mole of photon associated with this frequency is [tex]49.5\times 10^{-20}J[/tex]
HELP I HAVE NO TIME LEFT
Answers
Answer:
Top question is B
Bottom question is A
Explanation:
Answer:
top answer : B. intrusive igneous rock
bottom answer : A. extrusive igneous rock
Hope this helps!
Please rate my anser and say thanks!
Which type of material incorporates a variety of substances to enhance desired properties such as strength and flexibility?
Answers
Answer:
its a polymer
Explanation:
H2SO4(aq)+Sr(OH)2(aq)→
Express your answer as a chemical equation. Identify all of the phases in your answer.
Answers
Answer:
H2SO4(aq) + Sr(OH)2 (aq) --> SrSO4(s) + 2H2O (l)
Explanation:
The identification of all the phases with the help of a chemical equation is as follows:
[tex]H_2SO_4(aq) + Sr(OH)_2 (aq)[/tex] → [tex]SrS0_4 (s) + 2H_2O (l).[/tex]What is a Chemical equation?The chemical equation may be defined as the systematic demonstration of chemical reactions through which the reactants and the products are indicated in terms of their specific chemical formulae.
According to this question, the reaction of sulfuric acid with strontium hydroxide indicates an example of a double decomposition reaction in which the SO4 of sulfuric acid combines with strontium in order to form strontium sulfate while the hydroxide of strontium combines with H2 of sulfuric acid in order to form water.
Therefore, the identification of all the phases with the help of a chemical equation is well expressed with the help of a chemical equation.
To learn more about Chemical equations, refer to the link:
https://brainly.com/question/26694427
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what is the gram of hydrogen in periodic table?
Answers
Answer:
This is your answer
Hope it helps!!!
How are ionic bonds like magnets??
Answers
Answer:the opposite charge attracts like magnets
Explanation:
An unknown amount of water
was heated with 3.5 kJ, raising
its temperature from 26°C to
66°C. What was the mass of
the water?
Answers
Answer:
20.9grams
Explanation:
Using the formula:
Q = m × c × ∆T
Where;
Q = amount of heat (joules)
m = mass of substance (g)
c = specific heat of water (4.184 J/g°C)
∆T = change in temperature (°C)
According to the provided information;
Q = 3.5kJ = 3.5 × 1000 = 3500J
m = ?
c of water = 4.184 J/g°C
∆T = 66°C - 26°C = 40°C
Using Q = m × c × ∆T
m = Q ÷ (c × ∆T)
m = 3500 ÷ (4.184 × 40)
m = 3500 ÷ 167.36
m = 20.9
mass = 20.9grams
A chemist needs to determine the concentration of a sulfuric acid solution by titration with a standard sodium hydroxide solution. He has a 0.1071 M standard sodium hydroxide solution. He takes a 25.00 mL sample of the original acid solution and dilutes it to 250.0 mL. Then, he takes a 10.00 mL sample of the dilute acid solution and titrates it with the standard solution. The endpoint was reached after the addition of 12.69 mL of the standard solution. What is the concentration of the original sulfuric acid solution?
Answers
Answer:
The way the chemist works is through the chemistry of astronomical events in the atmosphere of delocalisation which causes a significant impact on Kanye West which ellaborates the terrific police of the UK. And thats why me and Jennifer Lopez share the same hair band.
what volume of nitrogen gas is equal too 3.42x10^22 molecules of this substance
Answers
if i am correct the volume of nitrogen gas has to equal to molecules density, making the substance 1.27 liters :)
I need help on this question on reaction enthalpy kJ
Answers
Answer:
-34kJ
Explanation:
Reverse first reaction: -68kJ
Divide by 2: -68/2 = -34kJ
What would happen to a system at equilibrium if the temperature were
changed?
A. Equilibrium would not be affected.
B. Only the reaction rate would change.
ОО
C. The system would lose the heat.
D. The equilibrium constant would change.
Answers
Answer: D. The equilibrium constant would change.
The equilibrium constant would change if the temperature were changed.
What is Equilibrium constant?A chemical reaction's equilibrium constant is the value of its reaction quotient at chemical equilibrium, a condition reached by a dynamic chemical system after a period of time has passed in which its composition shows no discernible tendency to change.Effect of temperature change on equilibrium constantChanging the temperature of an equilibrium system has a different result: The value of the equilibrium constant fluctuates when the temperature changes.The internal energy of the system grows as the temperature of the reaction rises. As a result, increasing the temperature causes one of the reaction's products to increase in quantity.Lowering the system's temperature decreases the quantity of energy present and encourages heat generation.Hence, the correct option is D.
To know more about Equilibrium constant here
https://brainly.com/question/19669218
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A first order reaction B=C has a half life of
20 minutes. What percentage shall have reacted
after 47 minutes?
Answers
Answer:
90.46 well that's how I got the answer from my calculations
What are at least 3 pros of using solar energy ?
Answers
Answer:
Renewable Energy Source. Among all the benefits of solar panels, the most important thing is that solar energy is a truly renewable energy source
Reduces Electricity Bills
Diverse Applications
Explanation:
All of these are examples of things that produce light energy except.
a. candle
b.flashlight
cDesklamp
d.compass
Answers
Answer:
Explanation:
A compass. Its main purpose is to tell what direction you are travelling.
A balloon is floating around outside your window. The temperature outside is -1 °C, and the air pressure is 0.800 atm. Your neighbor, who released the
balloon, tells you that he filled it with 5.00 moles of gas. What is the volume of gas inside this balloon?
Express your answer to three significant figures and include the appropriate units.
View Available Hint(s)
HA
?
Vballoon
Value
Units
Submit
Part B
A 14.0 L gas cylinder is filled with 5.00 moles of gas. The tank is stored at 7 °C. What is the pressure in the tank?
Express your answer to three significant figures and include the appropriate units.
View Available Hint(s)
Answers
Answer:
140 L (3 sig-figs; includes the zero)*
Explanation:
PV = nRT => V = nRT/P
P = 0.800atm
V = ?
n = 5 moles
R =0.08206 L·atm/mol·K
T = -1°C = (-1 + 273)K = 272K
V = nRT/P = (5mol)(0.08206 L·atm/mol·K)(272K)/(0.800atm) = 139.5 L
*=> 140 Liters (3 sig-figs) => zero is a sig-fig b/c it was result of rounding 139.5 Liters to obtain 140 Liters.
NEED HELP ASAP FREE BRAINLIST
Answers
Answer:
7) C. Sodium
8) G. 1 valence electron
Explanation:
Acetic acid and water react to form hydronium cation and acetate anion, like this:
HCH3CO2(aq) + H2O(l) → H3O^+ (aq) + CH3CO2^-(aq)
Imagine 226. mmol of CH3CO2- are added to a flask containing a mixture of HCH3CO2, H2O, H3O and CH3CO2- at equilibrium, and then answer the following question.
What is the rate of the reverse reaction before any CH3CO2^- has been added to the flask?
Answers
Answer:
The answer is "Greater than zero, and greater than the rate of the reverse reaction".
Explanation:
It applies a rate of reaction to the balance, a forward response dominates until it reaches a constant. This process is balanced before 52 mmol of the reactant[tex]HC H_{3} \ CO_2[/tex], to which 3 is added. In balance, that rate of the forward reaction was its rate with forwarding reaction, both of which are higher than 0 as the response has achieved balance so that both species get a level greater than 0.
Which type of stress causes rocks to fold?
compression
shearing
strike-slip
tension
Answers
Answer:
tension
Explanation:
10
Which of the following statements best explains how heat flows by
conduction?
A large mass of warm air rises, replacing the cooler air above
Energy is transferred by electromagnetic waves.
A large mass of air begins to move faster.
Energy is transferred from direct contact between two objects.
Sunlight warms an area of Earth's surface. Winds then carry thermal energy 1 po
Answers
The ocean does NOT influencepur weather.
true or false
Answers
Answer:
True
Explanation:
What is the reaction when you take hydrogen gas and oxygen gas to form liquid hydrogen peroxide
Answers
Answer:
Hydrogen gas (H2) and oxygen gas (O2) react to form liquid hydrogen peroxide (H2O2). The atoms of the reactants have combined to form a new substance. The new substance has its own set of properties that is different from the properties of each reactant.
Explanation:
Foods used by animal cells include starches, sugars, and:
O fats
O oxygen
O carbon dioxide
Answers
Answer:
i think it is fats might be wrong sorry
Answer:
Foods used by animal cells include starches, sugars, and:
A. carbon dioxide
B. oxygen
C. fats
Explanation:
C.. FATS
PLS HELP!! 40 POINTS (Absurd or Spam answers will be reported. No copying from other answers.)
Phases of Matter Activity
Now it is your turn to show what you know about phases of matter and thermal energy transfer! Your task is to create a presentation to explain the transformation of a substance as it changes phases. You may choose to write a story or create a comic strip. For your story or comic, you will create a main character and detail the adventure as your character is exposed to thermal energy, causing it to undergo phase changes from a solid, to a liquid, to a gas. You may create your own comic strip using drawings, presentation software, or this comic strip template.
Your presentation must include the following:
title and introduction of your character, including what substance the character is made of
source of thermal energy your character encountered (conduction, convection, and/or radiation)
detailed description and/or diagram of the particle transformation from solid to liquid phase
detailed description and/or diagram of the particle transformation from liquid to gas phase
You may get creative on this activity. If you are unsure if your idea or software for a presentation will work, contact your instructor for assistance. Be sure to review the grading rubric before you begin.
Answers
Answer:
lol i know this isnt the best but Your comic strip can be about how when you put smores in a campfire, the smores become burnt that is example of energy transfer because energy is traveling as heat to another object.
Explanation:
5. A sample of pure acetyl salicylic acid had a mass of 0.268 grams. It was dissolved in NaOH and diluted to 500.00mL in a volumetric flask.
a. What is the concentration of aspirin in the solution?
b. If an 8.00mL sample of this solution was pipetted into a volumetric flask and diluted to 100.00mL, what is the concentrated of aspirin after this dilution?
Answers
Answer:
a. 5.36x10⁻⁴ g/mL
b. 4.29x10⁻⁵ g/mL
Explanation:
As the units for concentration are not specified, I'll respond using g/mL.
a. We divide the sample mass by the final volume in order to calculate the concentration:
0.268 g / 500 mL = 5.36x10⁻⁴ g/mLb. We can use C₁V₁=C₂V₂ for this question:
8.00 mL * 5.36x10⁻⁴ g/mL = C₂ * 100.00 mL C₂ = 4.29x10⁻⁵ g/mLMOLECULES SPEED UP WHEN ENERGY IS CREATED AND SLOW DOWN WHEN ENERGY IS DESTROYED true or false
Answers
12.0 grams of sodium reacts with 5.00 grams of chlorine. What mass of sodium chloride could be produced? Na(s) + Cl2(g) à NaCl(s) (1) Identify the limiting reactant. (2) Determine the amount of sodium chloride produced.
Answers
Answer:
1. Cl₂ is the limiting
2. 8.24 g of NaCl.
Explanation:
We'll begin by writing the balanced equation for the reaction. This is illustrated below:
2Na + Cl₂ —> 2NaCl
Next, we shall determine the masses of Na and Cl₂ that reacted and the mass of NaCl produced from balanced equation. This is illustrated below:
Molar mass of Na = 23 g/mol
Mass of Na from the balanced equation = 2 × 23 = 46 g
Molar mass of Cl₂ = 2 × 35.5
= 71 g/mol
Mass of Cl₂ from the balanced equation = 1 × 71 = 71 g
Molar mass of NaCl = 23 + 35.5
= 58.5 g/mol
Mass of NaCl from the balanced equation = 2 × 58.5 = 117 g
SUMMARY:
From the balanced equation above,
46 g of Na reacted with 71 g of Cl₂ to produce 117 g of NaCl.
1. Determination of the limiting reactant.
From the balanced equation above,
46 g of Na reacted with 71 g of Cl₂.
Therefore, 12 g of Na will react with = (12 × 71) / 46 = 18.52 g of Cl₂.
From the calculation made above, we can see clearly that a higher amount (i.e 18.52 g) of Cl₂ than what was given (i.e 5 g) is needed to react completely with 12 g of Na.
Therefore, Cl₂ is the limiting reactant and Na is the excess reactant.
2. Determination of the amount of NaCl produced from the reaction.
In this case the limiting reactant will be used because it will give the maximum yield of NaCl as all of it consumed in the reaction.
The limiting reactant is Cl₂ and the mass of NaCl produced can be obtained as follow:
From the balanced equation above,
71 g of Cl₂ reacted to produce 117 g of NaCl.
Therefore, 5 g of Cl₂ will react to produce = (5 × 117)/71 = 8.24 g of NaCl.
Thus, 8.24 g of NaCl were obtained from the reaction.
Plz answer ASAP
At what point during the digestive process does your body begin to receive energy from the food?
Answers
Answer:
this should help *not a virus
Explanation:
https://kidshealth.org/en/teens/digestive-system.html