look at the picture below of an astronaut at two different distance from a planet. in which position A and B would there be a stronger gravitational pull between the astronaut and the planet? Explain
please help please please please please please please please please help it's due right now at 8:20pm please please help please really need help please
Answers
Answer:
B
Explanation:
Gravitational pull is stronger when the person is closer to the planet.
The gravitational force is the fundamental force of the universe. Here the astronaut at position B will experience a stronger gravitational pull as compared to the astronaut at position A.
What is gravitational force?The gravitational force is defined as the force of attraction between any two bodies is directly proportional to the product of their masses and is inversely proportional to the square of the distance among them.
F = G m₁m₂ / r²
The gravitational force decreases with the increase in the distance. So here distance of astronaut at position B which is closer to the planet experience greater gravitational pull.
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Related Questions
5.00 ml of an H2SO4 solution with unknown molarity was diluted with 25.00 ml. This was tirated with 15.00ml of .1000 M NaOH to reach the equivalence point. What is the molarity of the original unknown H2SO4 solution? Also, what would the balanced chemical equation for this reaction be?
Answers
Answer:
0.1500 M
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
Explanation:
The balanced chemical equation is:
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂OFirst we calculate how many NaOH moles reacted, using the volume and concentration:
15.00 mL * 0.100 M = 1.5 mmol NaOHThen we convert NaOH moles into H₂SO₄ moles:
1.5 mmol NaOH * [tex]\frac{1mmolH_2SO_4}{2mmolNaOH}[/tex] = 0.75 mmol H₂SO₄This amount of H₂SO₄ moles was originally contained within 5.00 mL of solution, thus the molarity is:
0.75 mmol H₂SO₄ / 5.00 mL = 0.1500 MCan someone help with 1 2 3 please I give you brainlest
Answers
2. positive
3. negative
Answer:
1. Option C : oppositely charged
2. Option B : positively charged
3. Option D : negatively charged
A student drops a rubber ball from a height of 100cm and draws a diagram to show the path of a bouncing ball. Describe the energy transformation that occurs as the ball goes from position A to E. Include the words kinetic energy and potential energy in your explanation.
Picture is down below.
Answers
Answer:
hjgihgvoj
Explanation:
Joshua wants to create something to put between a hot pot and a table, so he doesn't burn the table. He
knows he needs to choose a material that does not conduct heat well. Which material would be the best for
him to choose?
A. Wood
B. Aluminum
C. Copper
D. Glass
Answers
Aluminum is an excellent heat and electricity conductor and in relation to its weight is almost twice as good a conductor as copper.
Glass is a very poor heat conductor. It has one of the lowest possible heat conduction a solid (without air trapped in it) can possibly have, this is mostly due to its lack of ordered crystal structure. Since it's an insulator, the electronic contribution to the thermal conductivity is very small.
Metals and stone are considered good conductors since they can speedily transfer heat, whereas materials like wood, paper, air, and cloth are poor conductors of heat. ... These include copper (92), iron (11), water (0.12), and wood (0.03).
Wood and Glass do not conduct heat well, aluminum is the best for him to choose because
aluminum conducted heat the fastest at an average of 14 seconds. ... Aluminum has the ability to absorb heat faster than copper, and when removed from the heat source, will cool faster because it is less dense than copper
Aluminum metal reacts with oxygen gas to form solid aluminum oxide written into a chemical equation
Answers
Answer: Al2O3
Explanation:
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32. Calcium carbide, CaC2, is an important preliminary chemical for industries producing
synthetic fabrics and plastics. CaC2 may be produced by heating calcium oxide with
CaO + C CaC2+CO
What is the mass of CaC2 which can be produced from the reaction of excess calcium oxi
10.2 g of carbon? (Hint: Balance the equation first)
Answers
Answer:
18.1 g
Explanation:
Step 1: Write the balanced equation
CaO + 3 C ⇒ CaC₂ + CO
Step 2: Calculate the moles corresponding to 10.2 g of C
The molar mass of C is 12.01 g/mol.
10.2 g × 1 mol/12.01 g = 0.849 mol
Step 3: Calculate the moles of CaC₂ produced from 0.849 moles of C
The molar ratio of C to CaC₂ is 3:1. The moles of CaC₂ produced are 1/3 × 0.849 mol = 0.283 mol
Step 4: Calculate the mass corresponding to 0.283 moles of CaC₂
The molar mass of CaC₂ is 64.10 g/mol.
0.283 mol × 64.10 g/mol = 18.1 g
What is the mass % of acetone in a 1.77 M solution of acetone (MM = 58.08 g/mol) in water? The density of the solution is 0.971 g/mL.
Answers
Answer:
[tex]\%m/m=10.6\%[/tex]
Explanation:
Hello!
In this case, since the by-mass percent is defined by:
[tex]\%m/m=\frac{m_{solute}}{m_{solution}} *100\%[/tex]
Thus, since the given 1.77 M solution is given in terms of mol/L, we need to compute the mass of acetone via its molar mass and the volume of solution in L to g via the density:
[tex]\%m/m=1.77\frac{mol}{L}*\frac{58.08g}{1mol}*\frac{1L}{1000mL}*\frac{1mL}{0.971g} *100\%\\\\\%m/m=10.6\%[/tex]
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When warm, less dense air ________, an area of low pressure is left behind.
A
rises
B
disappears
C
sinks
D
moves south
Answers
Answer:
B
disappears
Explanation:
Bbbbbbbbbb
a muscle fiber contracts when myosin filaments pull actin filaments closer together and thus shorten sarcomeres within a fiber. When all the sarcomeres in a muscle fiber shorten, the fiber contracts
Answers
Answer:According to the sliding filament theory, a muscle fiber contracts when myosin filaments pull actin filaments closer together and thus shorten sarcomeres within a fiber.
Explanation:
No need for an explanation if i just answered it
The average speed of an oxygen molecule is 6.14 x 104 cm/sec at a certain temperature. What is the average speed of a CO2 molecule at the same temperature? (molar mass O2 = 31.9988; CO2 = 44.0098)
Answers
Answer:
the average speed of [tex]V_{av} CO_2[/tex] is 5.24 × 104 cm/s
Explanation:
The computation of the average speed of a [tex]CO_2[/tex] is as follows:
[tex]\sqrt{average} = \sqrt{\frac{8 RT}{\pi M} }[/tex]
where,
M = Molar mass
[tex]V_{av} = \frac{\sqrt{1}}{M}[/tex]
Given that
[tex]V_{av} \ of\ oxygen= 6.14 \times 10^4 cm/s[/tex]
The molar mass of oxygen i.e. (MO_2) = 31.9988 g/mol
And, the molar mass of CO_2 is 44.0098 g/mol
Now
[tex]\frac{V_{av} CO_2}{V_{av} O_2} = \frac{\sqrt{M_{O2} }}{M_{CO2}}[/tex]
Now place these values to the above formula
[tex]\frac{V_{av}CO_2}{6.14\times 104 cm/s} = \frac{\sqrt{31.9988} }{44.0098}[/tex]
So,
V_av CO_2 is 5.24 × 104 cm/s
hence, the average speed of [tex]V_{av} CO_2[/tex] is 5.24 × 104 cm/s
An object that has kinetic energy must be?
A at rest
B stopped
C in motion
Or
D at an elevated position
Answers
Answer:
C in motion
Explanation:
trust
Because kinetic energy is motion potential is at rest
balance the chemical equation KC1O3→KC1+O2
Answers
Answer:
2 KCO3 → 2 KC + 3 O2
Explanation:
Reaction Type
Decomposition
Reactants
KCO3
Products
KC
Dioxygen - O2
O₂ Oxygen Molecular Oxygen Diatomic Oxygen Triplet Oxygen Oxygen Gas Liquid Oxygen LOx
____________ sedimentary rocks form from the remains of living things.
a.
organic
c.
detrital
b.
chemical
d.
foliated
Answers
Answer:
I believe the answer is A. Organic.
Hope it helps!
Answer:
Organic
Explanation:
living things are organic, so chemical is wrong, detrital is when rocks form from broken down rocks left behind, again not from living things so that's also wrong, that leave Organic and foliated, foliated makes no sense which leave only Organic, so organic will be your answer
Two waves were analyzed with some high-tech instrumentation. The first wave was found to have a wavelength of 3 x 10 m and the second wave had a wavelength of 3 x 10 m. Which wave would have a higher frequency? Explain
Answers
Explanation:
The first wave was found to have a wavelength of 3 x 10⁵ m and the second wave had a wavelength of 3 x 10⁴ m
We need to find which wave have a higher frequency.
The relation between frequency and wavelength is given by :
[tex]c=f\lambda[/tex]
Let f₁ and f₂ be the frequency of wave 1 and wave 2.
[tex]f_1=\dfrac{c}{\lambda_1}\\\\f_1=\dfrac{3\times 10^8}{3\times 10^5}\\\\=1000\ Hz[/tex]
And
[tex]f_2=\dfrac{c}{\lambda_2}\\\\f_2=\dfrac{3\times 10^8}{3\times 10^4}\\\\=10000\ Hz[/tex]
Hence, the wave having less wavelength will have higher frequency. The wave having wavelength 3 x 10⁴ m will have higher frequency.
Which of the following observations would be the expected indication that a reaction has taken place when a solution of cesium sulfate is mixed with strontium perchlorate.
Bubbling
Formation of percipitate
Formation of soluble salts
Formation of a gas
Answers
Answer:
Formation of precipitate
Formation of soluble salts
Explanation:
Let's consider the molecular equation that takes place when an aqueous solution of cesium sulfate is mixed with an aqueous solution strontium perchlorate.
Cs₂SO₄(aq) + Sr(ClO₄)₂(aq) ⇒ 2 CsClO₄(aq) + SrSO₄(s)
According to the solubility rules:
CsClO₄ is a soluble salt.SrSO₄ is an insoluble salt that precipitates as a solid.For a double displacement reaction to occur, at least one of the products must be insoluble or volatile.
Answer:
It's b) Formation of a precipitate
Explanation:
I took the quiz and got it right.
A fruit juice has a very sour taste. What does this most likely indicate?
A. The juice is a metal
B. The juice is a salt
C. The juice is an acid
D. The juice is a base
Answers
Explanation:
its hard its either B or C i dont wanna be wrong;-;
Answer:
The Juice wouldnt be a metal, Salt isnt that effective in juice if you have sensitive tastebuds. Your answer is C. THe Juice is an acid
Explanation:
Fe + CuCl2 → FeCl2 + Cu
The type of reaction represented by the above equation is -
decomposition
synthesis
single-replacement
double-replacement
Answers
Answer:
the type is single replacement
The given reaction equation represents a single-replacement reaction.
Explanation:
A chemical reaction is defined as the rearrangement of the atoms of a substance to give a new substance as a product.A decomposition reaction is a type of chemical reaction in which a substance breakdowns into two or more than two simpler substances.ABC→ A+B+C
A synthesis reaction is a chemical reaction in which two or more compounds are combined together to form a single compound.A+B+C → ABC
A single-replacement reaction is defined as the chemical reaction in which an element replaces another element from its compound.AB+ C → AC + B
A double-replacement reaction is defined as the chemical reaction in which ions of compounds are exchanged.AB+ CD → AC + BD
Given:
[tex]Fe + CuCl_2 \rightarrow FeCl_2 + Cu[/tex]
To find:
The type of chemical reaction represented by the given equation.
Solution:
In the given reaction:
[tex]Fe + CuCl_2 \rightarrow FeCl_2 + Cu[/tex]
Iron is replacing copper from its compound which is copper(II) chloride to give iron(II) chloride and copper as a product.
So from this, we can conclude that the given reaction equation represents a single-replacement reaction.
Learn more about types of chemical reactions here:
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NEED HELP ASAP!!! I just need to know the order
Answers
3 Heating of cooler material
1 cooling of warmer material
2 movement of denser material
6. If you 5.5 mol of Nitrogen in: N2 + 3H2 → 2NH3
a. How many moles of Hydrogen are needed to completely react with the nitrogen?
b. How many moles of Ammonia will be produced?
Answers
Answer:
Therefore 9 moles of nitrogen are required to produce 18 moles of ammonia.
Determine what kind of diet this animal has by examining its teeth.
Carnivore
Omnivore
Herbivore
Vegan
Answers
Answer:
That animal is a Carnivore.
Explanation:
The skull is that of a Panther which is a carnivore. Hope this helps
how many moles of atoms of each element in one mole (NH4)2CO3
Answers
Answer:
Chemists generally use the mole as the unit for the number of atoms or molecules of a material. One mole (abbreviated mol) is equal to 6.022×1023 molecular entities (Avogadro's number), and each element has a different molar mass depending on the weight of 6.022×1023 of its atoms (1 mole).\
Have a great day!!!!
Explanation:
1 mole of (NH₄)₂CO₃ has:
2 moles of N atoms.8 moles of H atoms1 mole of C atoms.3 moles of O atoms.Let's consider the chemical formula of ammonium carbonate: (NH₄)₂CO₃.
The subscripts inform us of the number of moles of atoms in 1 mole of molecules.
Nitrogen has 2 subscripts: "1" (which is not written) and "2" (outside the parenthesis). The global subscript for nitrogen is obtained by multiplying both subscripts.
[tex]N: 1 \times 2 = 2[/tex]
Hydrogen has 2 subscripts: "4" and "2" (outside the parenthesis). The global subscript for nitrogen is obtained by multiplying both subscripts.
[tex]H: 4 \times 2 = 8[/tex]
The subscript for carbon is "1".
The subscript for oxygen is "3".
1 mole of (NH₄)₂CO₃ has:
2 moles of N atoms.8 moles of H atoms1 mole of C atoms.3 moles of O atoms.Learn more: https://brainly.com/question/375587
PLEASE HELP! (IM GIVING BRAINLIEST) Which of the following is a monatomic cation?
A.) NH4+
B.) SO4 -2
C.) Fr+
D.) Br-
Answers
Answer:
C. Francium
Explanation:
Bromine is diatomic, and A + B are polyatomic ions. C is the right answer
Answer:
Fr^+
Explanation:
took the test
A metal sample weighs 57.3g and has volume of 6.3mL what is the density of the sample
Answers
Answer:
9.10 g/mLExplanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\[/tex]
From the question we have
[tex]density = \frac{57.3}{6.3} \\ = 9.095238...[/tex]
We have the final answer as
9.10 g/mLHope this helps you
Can someone help me please
Answers
How many double covalent bonds can form with a hydrogen atom
Answers
answer: covalent bonds
Which of the following physical properties is NOT characteristic of a metal?
A.Malleable
B.Solid at room temperature
C.Dull in color
D.Good conductors
Answers
An atom of which element has the strongest attraction for the electrons in a bond?
a. aluminum
b. carbon
c. chlorine
d. lithium
Answers
Answer:
chlorine
Explanation:
This is because the electronegativity increases from left to right and decreases from top to bottom of the periodic table.
Sodium chloride (NaCl) can be broken down to produce
pure sodium (Na) and chlorine gas (CI).
Which equation represents this chemical reaction?
A. 2NaCl + Cl2
2Na
B. 2NaCl + 2Na
Cl2
C. 2Na
2NaCl + Cl2
D. 2Naci - 2Na+ Cl2
Answers
Answer:
Explanation:
B
Answer:
Explanation:
It D I’m taking it right nowwww
Determine the number of hydrogen atoms in an alkyne with one carbon–carbon triple bond and 4 carbon atoms.
number of hydrogen atoms: ?
Answers
Answer:
There are 6 hydrogen atoms.
Explanation:
The formula for an alkyne that has only one triple bond is as follows:
CₙH₂₍ₙ₎₋₂Where n is any natural number greater than 2.
For this problem, n=4. This would mean the formula is:
C₄H₂₍₄₎₋₂Thus
C₄H₈₋₂C₄H₆Thus the answer is 6, there are 6 hydrogen atoms.
What is the difference between a purine and a pyrimidine?
Answers
Answer: Adenine and guanine are the two purines and cytosine, thymine and uracil are the three pyrimidines. The main difference between purines and pyrimidines is that purines contain a sixmembered nitrogencontaining ring fused to an imidazole ring whereas pyrimidines contain only a sixmembered nitrogencontaining ring. They both are types or categories of nitrogen containing bases present in nuclei acids of DNA and RNA.
Purines are 2 Ring or Carbon Ring, Nitrogen containing bases. That consist of these 2 rings next placed next to each other. These examples include - Adenine and Guanine.
Pyrimidines are 1 or single Ring Nitrogen containing structures. There are 3 nitrogenous bases that are categorized as pyrimidines. Cytosine, Thymine, and Uracil.