i’m stuck on part b of this question :( this is from the ap chem textbook on pg. 35 just so u know. please help!
Answers
Answer:
b) Aluminum sphere: 11.4J
Silver sphere: 44.3 J
Explanation:
a) Mass of aluminum sphere
= 2.70(196)
= 529.20g
= 0.5292kg
Mass of silver sphere
= 10.49(196)
= 2056.04g
= 2.05604 kg
b) Work done (Joules)
= force (Newton) ×distance moved in the direction of the force (in meters)
[tex] \boxed{W = F \times d} [/tex]
To raise the sphere, the work done is against gravity.
For the formula for weight (or force of gravity), the mass needed is in kg, which we have already converted to in part (a).
Since they asked for the work done on each sphere, let's calculate the work done for the aluminium sphere first.
Aluminium sphere:
F= mg
F= 0.5292(9.8)
F= 5.18616N
W= Fd
Work done
= 5.18616(2.2)
= 11.4J (3 s.f.)
Silver sphere:
F= mg
F= 2.05604(9.8)
F= 20.149192N
W= Fd
Work done
= 20.149192(2.2)
= 44.3J (3 s.f.)
Related Questions
Steve is performing a titration, where a base is at an unknown concentration. What should he choose as his indicator solution?Steve is performing a titration, where a base is at an unknown concentration. What should he choose as his indicator solution?
Answers
Answer:
D
Explanation:
Answer:
D) A chemical that's clear when basic and turns color when acidic is correct!
Explanation:
I got it right on a test!
Hope this Helps!! :))
Tony tuns on a fan on when his room becomes uncomfortably hot. The fan is an example of?
A-Electrical Energy changed into heat energy
B-Mechanical energy being changed into electrical energy
C-Electrical energy changed into mechanical energy
D-Heat energy being changed into electrical energy
Please answer im in a rush
Answers
Answer:
C-Electrical energy changed into mechanical energy
Explanation:
Energy, according to the law of conservation of energy, is said to neither be created or lost but only interchangeable from one form to another. Energy exists in different forms. The process by which one form of energy changes to another is called TRANSFORMATION of energy.
However, certain household appliances or devices bring about this transformation of energy. For example, in a case where Tony turns a fan on when his room becomes uncomfortably hot. The fan uses an electric source to get powered on, which then facilitates the blades of the fan to move fast in order to bring about a cool atmosphere.
The fan converts ELECTRICAL energy (electric source) into MECHANICAL energy (moving energy).
Why is it important to collect all data during experiments, rather than make inferences of what will happen?
Answers
Answer:
It is important to collect all data first, or else your guesses could purely be the opposite of the right answer. If you make inferences of what might happen, your guesses may be purely fictional, and totally off-topic. During experiments, this step is important.
Ella holds an ice cream cone in her hand. She soon notices that her hand begins to feel cold. Which claim explains what is different about the particles that make up her hand?
Answers
Answer:
what's different about the particles in her hand are that for one are a solid in contrast to the ice cream which is partially liquid.
A centimeter and milimeter differ from each other by a factor of _____?
Answers
Answer:
10
Explanation:
a centimeter and a milimeter differ from each other by a factor of 10
Answer: 10
Explanation:
Who Ever answers get 30 points (please no guessing)
Signals from _______ and the body's _______ are received by the brain and the spinal cord.
Answers
Signals from the nervous system and the body's neurons are received by the brain and the spinal cord.
I think this is the answer hope it helps!
Answer:
Organs and senses.
Explanation:
The central nervous system includes the brain and spinal cord.
Your internal organs and your senses send signals to your brain and spinal cord.
You titrate 5.0 mL of HCl with 0.010 M NaOH. You find the end point of your titration occurs when 12.0 mL of NaOH has been added. What is the total volume of the solution at the end point of the titration
Answers
Answer:
The total volume of the solution at the end point of the titration is 17.0 mL
Explanation:
First we will write a balanced chemical equation for the reaction between HCl and NaOH.
HCl + NaOH → NaCl + H₂O
This means 1 mole of HCl will react with 1 mole of NaOH to give 1 mole of NaCl and 1 mole of H₂O
From the question,
Concentration of acid (HCl), [tex]C_{A}[/tex] = ??
Volume of acid (HCl), [tex]V_{A}[/tex] = 5.0 mL
Concentration pf base (NaOH), [tex]C_{B}[/tex] = 0.010 M
Volume of base (NaOH), [tex]V_{B}[/tex] = 12.0 mL
To determine the Concentration of acid, [tex]C_{A}[/tex]
From,
[tex]\frac{C_{A}V_{A} }{C_{B}V_{B} } = \frac{n_{A} }{n_{B} }[/tex]
Where [tex]n_{A}[/tex] is the mole ratio of acid
and [tex]n_{B}[/tex] is the mole ratio of base.
The concentration of the acid used can be determined from the above formula.
But, we are asked to find the total volume of the solution at the end point of the titration
The total volume of the solution will be the sum of the volume of HCl that reacted and volume of NaOH that reacted.
Hence, The total volume of the solution = [tex]V_{A} + V_{B}[/tex]
= 5.0 mL + 12.0 mL
= 17.0 mL
Hence, the total volume of the solution at the end point of the titration is 17.0 mL
Can someone find the independent variable and the dependent variable ? :)))
Answers
Answer: Dependant variable = The distance it takes for each car to stop. Independent variable = Both cars go at 60 mph.
Explanation:
This is right because the dependant variable changes and the independent variable is the outcome of the dependant variable.
A biological community together with its physical habitat constitutes a(n) ____________ .
Answers
Answer:
Ecosystem
Explanation:
I got the answer from the Mcgrawhill textbooks.
If a cubic container has a side length of 50.0cm ,what is the volume in the liter?
Answers
Answer:
0.05 Liter
Explanation:
Conversion factor: 1/1000
1) Liter = Cubic Centimeter / 1000
2) Liter = 50 / 1000
3) Liter = 0.05
If 6.02*10^23 molecules of ammonia react with 12.04*10^23 molecules of hydrogen chloride, how many molecules are in the reaction vessel when the reaction is complete
Answers
Answer:
18.06 × 10²³ molecules
Explanation:
Add the two amounts of molecules together.
6.02 × 10²³ + 12.04 × 10²³ = 18.06 × 10²³
You will have 18.06 × 10²³ molecules in the vessel when the reaction is complete. This is because of the Law of Conservation of Mass. Mass is neither created nor destroyed in chemical reactions. You will have the exact number of molecules in the reaction vessel as you did in the beginning. The types of molecules may change, but the number will stay the same.
A sample of marble has a volume of 6 cm3 and a density of 2.76 g/cm3. What is its mass?
Answers
Answer:
16.56g
Explanation:
6*2.76=16.56...
Answer:
16.56 grams
Explanation:
The density can be found using the following formula:
[tex]d=\frac{m}{v}[/tex]
If we rearrange the formula for m, the mass, we should multiply both sides by v.
[tex]d*v=\frac{m}{v} *v[/tex]
[tex]d*v=m[/tex]
The mass can be found by multiplying the density and the volume. The density is 2.76 grams per cubic centimeter. The volume is 6 cubic centimeters.
[tex]d= 2.76 g/c^3\\v=6 cm^3[/tex]
Substitute the values into the formula.
[tex]m= d*v[/tex]
[tex]m= 2.76 g/cm^3 * 6 cm^3[/tex]
Multiply. When you multiply the 2 "cm^3" will cancel each other out.
[tex]m= 2.76 g* 6[/tex]
[tex]m= 16.56 g[/tex]
The mass of the marble is 16.56 grams.
please help me i will mark brainliest
Answers
Answer:
7) Example: Gravitational force
Gravitational force, also known as gravity, is a type of non- contact force.
10) Unbalanced forces can cause an object to accelerate, make a stationary object move, or cause a moving object to stop.
12) Gravitational force, Frictional force, Magnetic force
13) Friction is beneficial when we are walking as it prevents us from slipping.
For the table, find the net force first and that would help us to find the direction and the type of force (balanced/ unbalanced).
As written in Q11, add all the forces together to determine the net force acting on an object. More specifically, add the forces that act in one direction together. Then subtract the forces acting in the other direction.
Let's look at the teddy bear (Q14 -16):
Take note that we have to look at the direction of the arrow not which side the arrow is on (left/ right of the bear).
Total force acting towards the left
= 16 +7
= 23N
Total force acting on the right= 22N
Net force
= 23 -22
= 1N towards the left
Thus, 14) Unbalanced (since the net force is not 0N)
15) 1N
15) 1N16) left
Vase question:
Total downward force
= 11 +33
= 44N
Total upward force
= 25 +19
= 44N
Net force= 0N
17) Balanced
17) Balanced18) 0N
17) Balanced18) 0N19) No direction
Bicycle question:
Total force acting towards the right
= 65 +115
= 180N
Total force to the left= 170N
Net force
= 180 -170
= 10N to the right
20) Unbalanced
20) Unbalanced21) 10N
20) Unbalanced21) 10N22) To the right
Which statement is not correct?
A: Energy is released when a liquid changes into a solid.
B: Particles move faster in the gaseous state than in the liquid state.
C: The carbon atoms in gaseous methane are further apart than those in solid diamond.
D: There is a large decrease in the volume of a solid metal when pressure is applied to it.
Answers
Answer:
D
Explanation:
If we put pressure on a solid or a liquid, there is essentially no change in volume.
Matter are anything that is made up of atoms. The quantity of matter can be observed only on the basis of mass and volume calculation. Therefore, the incorrect statement is option D that is there is a large decrease in the volume of a solid metal when pressure is applied to it.
What is matter?Matter is a substance that has some mass and can occupy some volume. The matter is mainly used in science. Matter can be solid, liquid or gas.
Matter is anything that is made up of atoms. Anything around us that can be physically seen and touched are matter. Ice, water and water vapors are example of matter. When we apply pressure on solid, then there is no change in volume of the solid matter.
Therefore, the incorrect statement is option D that is there is a large decrease in the volume of a solid metal when pressure is applied to it.
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How much heat is absorbed by 20g granite boulder as energy from the sun causes its temperature to change from 10°C to 29°C? The specific heat capacity of granite is 0.79 J/gºC.
Answers
Given :
Mass of granite , m = 20 g .
Change in temperature , [tex]\Delta T=29-10=19^oC[/tex].
Specific heat capacity of granite , [tex]C=0.79\ J/g^oC[/tex] .
To Find :
The heat absorbed by granite .
Solution :
We know , heat absorb is given by :
[tex]\Delta H=mC\Delta T\\\\\Delta H=20\times 0.79 \times 19 \ J\\\\\Delta H=300.2\ J[/tex]
Therefore , heat absorb is 300.2 J .
Hence , this is the required solution .
Taking into account the definition of calorimetry, the heat absorbed is 300.2 J.
In first place, calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.
Sensible heat is the amount of heat exchanged by a body without affecting its molecular structure. If you don't change the molecular structure, you don't change the state of aggregation. Since the molecular structure does not change, a change in temperature is observed.
In other words, sensible heat is the amount of heat that a body absorbs or releases without any changes in its physical state (phase change).
So, the equation that allows to calculate heat exchanges is:
Q = c× m× ΔT
where Q is the heat exchanged by a body of mass m, made up of a specific heat substance c and where ΔT is the temperature variation.
In this case:
Q= ? c= 0.79[tex]\frac{J}{gC}[/tex] m= 20 g ΔT= Tfinal - Tinitial= 29 C - 10 C= 19 CReplacing in the expression to calculate heat exchanges:
Q= 0.79[tex]\frac{J}{gC}[/tex]× 20 g× 19 C
Solving:
Q= 300.2 J
In summary, the heat absorbed is 300.2 J.
Learn more:
brainly.com/question/11586486?referrer=searchResults brainly.com/question/24724338?referrer=searchResultsgold is heavier than aluminium if we put a 100 gram biscuit of gold in water taken in a measuring cylinder or we put a 100 gram aluminium bar in the measuring cylinder will the rise in the level of the water be same or different in the two cases give reason
Answers
Answer:
The level of the water will be higher for 100g Al because occupy more space than gold.
Explanation:
To understand this problem, we must know Archimedes' principle:
"A body that is submerged in a fluid produce a bouyant force equal to the weight of the fluid that the body displaces". The volume of the body is equal to the volume displaced in the liquid.
Now, as gold is heavier than aluminium, 100g of Al have more volume than 100g of gold, than means:
The level of the water will be higher for 100g Al because occupy more space than gold.What does control group mean
Answers
Convert 23 kg to ounces (2.2 lbs = 1 kg) (1 lb = 16 ounces)
Answers
Answer:
23 kgs = 809.6 ounces
Explanation:
given:
1 kg = 2.2 ibs
therefore, 23 kgs = 2.2*23 Ibs = 50.6 Ibs
since, 1 Ib = 16 ounces
therefore, 23 kgs = 50.6*16 ounces = 809.6 ounces
is Weight Measurement a phenomenon?
Answers
Answer:
yes
Explanation:
it change everything
im pretty sure the awnser is yes
Compare the properties of iron and nickel.
I need 3 comparisons
Answers
Answer:
It is important to note that iron, cobalt, and nickel which appear in period 4, of the transition metals, next to each other, share very similar physical and chemical properties and are known collectively as the iron triad
The comparison of the properties of iron includes
Chemical properties
1) Atomic number; The atomic number of iron is 26 while the atomic number of nickel is 28
2) The oxidation states of iron are 2, 3, 6 while the oxidation state of nickel are 2,3
3) The ionization energies in kJ/mol are first 759, second 1561, and third 2957 for iron and first 737, second 1753, and third 3393 for nickel
Physical properties
1) The mass of iron is 55.85 with density = 7.87 g/cm³, the mass of nickel is 58.69 with density = 8.91 g/cm³
2) The melting point of iron is 1530°C, boiling point 2862°C and that of nickel are 1455°C and 2732°C
3) The electrical conductivity of iron is 16 and that of nickel is 23
Explanation:
Consider the electron configuration. A box holds an up and a down arrow. A box holds an up and a down arrow. A box holds an up and a down arrow.A box holds an up and a down arrow.A box holds an up and a down arrow. A box holds an up and a down arrow. A box holds an up and a down arrow.A box holds an up and a down arrow.A box holds an up arrow. 1s 2s 2p 3s 3p Which element has this electron configuration?
Answers
Answer:
The Argon ([tex]Ar[/tex]) has this electron configuration.
Explanation:
The question is wrong. The correct electron configuration is :
[tex]1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}[/tex]
The electron configuration is the distribution of electrons of an atom or molecule in atomic or molecular orbitals.
The letters s,p,d and f are called the orbitals.
The numbers 1,2,3,4,5,6 and 7 are called the levels.
The maximum numbers of electrons that the s-orbital can hold is 2 electrons.
The maximum numbers of electrons that the p-orbital can hold is 6 electrons.
The maximum numbers of electrons that the d-orbital can hold is 10 electrons.
The maximum numbers of electrons that the f-orbital can hold is 14 electrons.
The order in which the orbitals are filled is :
1s-2s-2p-3s-3p-4s-3d-4p-5s-4d-5p-6s-4f-5d-6p-7s-5f-6d-7p-6f-7d-7f
To identify the electron configuration of an element we need to count and sum the exponents of its orbitals.
The electron configuration is :
[tex]1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}[/tex]
Has the following sum of exponents : [tex]2+2+6+2+6=18[/tex]
Therefore the total electrons of the element is 18 electrons.
The element that has 18 electrons is Argon ([tex]Ar[/tex])
Answer:
C) chlorine
Explanation:
edge 2023
______is used in production of hard disk. 1 platinum 2 silver 3 gold
Answers
Answer:
platinum
Explanation:
the film on a hard drive platter contains platinum
How many significant figures are in 31400
Answers
Answer: The Answer Is 3!
which of the following questions can be answered by science?
Answers
Answer:Is Fruit ripening dependent on the type of light exposed to?
Explanation: Because you can test this theory
How many grams are in 0.02 moles of beryllium iodide, Bel2?
Answers
Answer:
5.26g
Explanation:
Please see attached picture for full solution.
The number of neutrons in an atom affects the atomic ________of the atom. A. Activity B. number C. size D. mass
Answers
Answer:
D. Mass
Explanation:
Answer:
D
Explanation:
The number of neutrons in an atom affects the atomic mass number or atomic weight.
At what temperature would one mole of molecular nitrogen (N_2) have 7.0 × 10^3 J of translational kinetic energy (total internal energy)? Note: the atomic mass of N is 14 g/mol.
Answers
Answer:
T = 561.3K
Explanation:
The translational kinetic energy of a gas such as nitrogen is obtained using the formula:
K = 3/2 * n * R * T
Where n are moles of gases (1mole of N₂), R is gas constant (8.314J/molK)and T is absolute temperature (in K)
If the translational energy of the gas is 7.0x10³J:
7.0x10³J = 3/2 * 1 mole * 8.314J/molK * T
T = 561.3KOrganisms can be grouped according to how similar they are to one
another.Which list correctly shows the categories for sorting organisms
from the largest group to the smallest group? *
Answers
Answer:
Kingdom, phylum, class, order, family, genus, and species
Explanation:
Kingdom, phylum, class, order, family, genus, and species are the list used to classify organisms on the basis of similarities and differences. The largest group of classification is kingdom while the smallest group is the species. In each category, the organisms which are present are similar to each other while different from one another in some characteristics.
The carbon _____________________combines chemically with oxygen and hydrogen to form a _________________________known as sugar. When making syrup, the sugar is dissolved in water to make a_________________________ . Before the sugar and water are mixed, the _______________________________mixture is not the same sweetness throughout. After mixing, the solution____________________________ is because when sugar is evenly disbursed throughout the water. Finally, the water is slowly boiled off and the solution slowly becomes sticky and gooey because the______________________ has increased and the solution now resists flowing.
Compound, Element ,Heterogeneous ,Homogeneous, Mixture ,Viscosity
Answers
The carbon element combines chemically with oxygen and hydrogen to form a compound known as sugar. When making syrup, the sugar is dissolved in water to make a mixture . Before the sugar and water are mixed, the heterogenous mixture is not the same sweetness throughout. After mixing, the solution homogenous is because when sugar is evenly disbursed throughout the water. Finally, the water is slowly boiled off and the solution slowly becomes sticky and gooey because the viscosity has increased and the solution now resists flowing.
What do you mean the solution ?A solution is a homogeneous mixture of two or more substances. A solution may exist in any phase. A solution consists of a solute and a solvent.
For the solutions, with components in the same phase, the substances present in lower concentration are solutes, while the substance present in higher concentration is the solvent.
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HELP give 5 examples of how greenhouse gases effect's our earth ANd wHo wAnNa be FrIeNds.
Answers
Answer:
- sunlight heats the earth's surface
- climate change by trapping heat in the ozone layer
- increased wild fires
- food shortages due to higher temperatures
- they contribute to respitory disease due to smog and air pollution
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