based on our current theory of earth's formation, the water we drink comes from material left behind during the giant impact that formed the moon. chemical reactions that occurred in earth's crust after earth formed. comets that impacted earth. ice that condensed in the solar nebula in the region where earth formed. chemical reactions that occurred in earth's core after earth formed.

Answers

Answer 1

Based on our current theory of Earth's formation, the water we drink comes from comets that impacted Earth.

1. Earth formed through the process of accretion, where small particles and debris in the solar nebula clumped together to form a larger mass.


2. As Earth continued to grow and accumulate mass, its gravitational pull increased, attracting more material, including ice and other volatile compounds.


3. During this time, the solar system was filled with numerous comets, which are essentially "dirty snowballs" made up of ice, dust, and rock.


4. These comets frequently collided with Earth, bringing with them a significant amount of water in the form of ice.


5. Over time, the ice from comets that impacted Earth melted and contributed to the formation of Earth's oceans, which is the source of the water we drink today.

It is important to note that some of the water on Earth may also have originated from other sources, such as chemical reactions within Earth's crust or condensation of ice in the solar nebula.

However, the prevailing theory suggests that the majority of our water came from comet impacts.

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Related Questions

rigid tank contains 4 lbm of air at 14.696 psia and 80 °f. the tank is heated adding 30 btu of heat to the system. assuming air to be an ideal gas, determine the final temperature (°f) assuming;

Answers

The final temperature is approximately 168.3 °F assuming constant volume and ideal gas behavior.

To determine the final temperature of the air inside the tank, we can use the First Law of Thermodynamics, which states that:

ΔU = Q - W

where ΔU is the change in internal energy, Q is the heat added, and W is the work done. For an ideal gas, we can assume that there is no work done (i.e. W = 0), so the equation simplifies to:

ΔU = Q

The change in internal energy can be expressed as:

ΔU = m * Cv * ΔT

where m is the mass of the air, Cv is the specific heat at constant volume, and ΔT is the change in temperature.

Since air is assumed to be an ideal gas, we can use the following equation to relate pressure, volume, temperature, and mass:

P * V = m * R * T

where P is the pressure, V is the volume, T is the temperature, and R is the gas constant.

Solving for the final temperature, we get:

T2 = (Q / (m * Cv)) + T1

where T1 is the initial temperature and Cv is the specific heat at constant volume for air.

Substituting the given values, we get:

m = 4 lbm = 1.814 kg (converting pounds to kilograms)

T1 = 80 °F = 26.67 °C (converting Fahrenheit to Celsius)

P1 = 14.696 psia = 101.325 kPa (converting pounds per square inch absolute to kilopascals)

V1 = m * R * T1 / P1 = (1.814 kg) * (287.058 J/kg.K) * (26.67 + 273.15 K) / (101.325 kPa) = 0.077 m^3 (calculating the initial volume using the ideal gas law)

Cv = 0.1716 kJ/kg.K (specific heat at constant volume for air)

Q = 30 BTU = 31.546 kJ (converting British thermal units to joules)

Using the equation above, we can calculate the final temperature as:

T2 = (Q / (m * Cv)) + T1 = (31.546 kJ / (1.814 kg * 0.1716 kJ/kg.K)) + 26.67 °C = 200.1 °F

Therefore, the final temperature of the air inside the tank is approximately 200.1 °F.

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_______ drives the energy and motion of waves? ______

Answers

Answer:

Wind-driven waves, or surface waves,

Explanation:

6. If you walk 30. m E. 20.m S, 30. m W, and finally, 20. m N, what is your distance and displacement?​

Answers

Answer:

Your distance is 100m(meters)

Your displacement is 0

Explanation:

If a constant, nonzero force is applied to an object that is at rest, what can you say about the velocity and acceleration of the object as the force is applied?.

Answers

Answer:

a is constant., v is increasing.

Explanation:

F = ma

F and m are both constant, so a is constant.

v = at, t is increasing, so v is increasing.

The velocity of the object will be equal to numerical multiplication of acceleration and time while  the acceleration of the body is the total applied force divided by mass of the object.

What is force?

An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude. The application of force is the location at which force is applied, and the direction in which the force is applied is known as the direction of the force.

A spring balance can be used to calculate the force. Newton(N) is the SI unit of force.

For applying nonzero force, the object will come in motion.

Let, the mass of the body = m.

Force applied on it = F.

Acceleration of the body = a.

And after time t, the velocity of the object become v.

From Newton's 2nd law of motion, we can write,

Applied force = mass × acceleration.

⇒ F = ma

⇒ a = F/m.

And, final velocity will be = acceleration × time = at

Hence, the acceleration of the body is the total applied force divided by mass of the object and velocity of the object after some time will be equal to numerical multiplication of acceleration and time.

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The burning of a log releases the logs chemical_energy into other forms of energy

Answers

Answer:

When we burn wood we are releasing solar energy, in the form of heat, that has been stored in the wood as chemical energy. The process of photosynthesis converted solar energy, water and carbon dioxide into oxygen and the organic molecules that form the wood, half the weight of which is carbon.

Explanation:

Which moon shows evidence of rainfall and erosion by some liquid substance?.

Answers

Answer:

Titan.It is the largest moon of Saturn

Please identify what is the force indicated at the “X” and what would happen if “X” is greater than the pushing force in the diagram? Make sure to include (Quote and define the force at “X”)

Please identify what is the force indicated at the X and what would happen if X is greater than the pushing

Answers

Answer:

X is frictional force

Explanation:

when X is greater than pushing force,the object won't move

The correct answer for the nature of force at "X" is frictional force.

What is friction force?

Friction or frictional force is the force that acts when two surface comes in contact with each other. When a body A is resting upon a body B, The force that helps the body to maintain the equilibrium position is static friction.

Kinetic friction slows down a moving object, when their is relative   motion between two objects. It always acts in apposite direction to the force applied.

It is denoted by \(F\).

The formula to calculate static friction is \(F = \mu N\)

\(\mu_s =\) Co-efficient of static friction

\(\mu_k =\) Co-efficient of Kinematic friction.

The Force indicated at "X" is "Kinetic friction", It will slow down the moving object.

When "X" is greater than the moving object, the object will stop moving and will remain at rest.

The Force Indicated at "X" is Frictional force.

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(a) You wish to determine the height of the smokestack of a local coal burning power plant. You convince a member of the maintenance crew to mount the support for a simple pendulum at the top of the stack and you suspend a 1.00 kg mass that just misses the ground at its lowest point from the pendulum cord. If the period of the pendulum is 18.7 s, determine the height of the smokestack. 8455.69 Incorrect: Your answer is incorrect. What factors influence the period of a simple pendulum

Answers

Answer:

a. 86.80 m

b. i. The mass of the bob

ii. The length of the pendulum

Explanation:

a. Determine the height of the smokestack.

Using T = 2π√(L/g) where T = period of pendulum = 18.7 s, L = length of pendulum = height of smokestack and g = acceleration due to gravity = 9.8 m/s².

So, making L subject of the formula, we have

T = 2π√(L/g)

T/2π = √(L/g)

squaring both sides, we have

(T/2π)² = L/g

L = (T/2π)²g

Substituting the values of the variables into the equation, we have

L = (T/2π)²g

L = (18.7 s/2π)²(9.8 m/s²)

L = (2.976 s)²(9.8 m/s²)

L = 8.857 s² × 9.8 m/s²

L = 86.796 m

L ≅ 86.80 m

b. What factors influence the period of a simple pendulum

The factors that influence the period of a simple pendulum are

i. The mass of the bob

ii. The length of the pendulum

Which is an example of a mixture?


A.) sulfur

B.) table sugar

C.) carbon dioxide

D.) salt water

Answers

Answer:

An example of a mixture would be salt water

The answer is D as salt water is a mixture.

The voltage across a 10 ohm resistor carrying 5 Amps of current is a. 10 Volts b. 5 Volts c. 1 Volt d. 50 Volts

Answers

The voltage of the resistor of resistance 10 ohms is 50 V. The correct option is d. 50 Volts.

What is voltage?

Voltage describes the “pressure” that pushes electricity.

To calculate the voltage of the resistor, we use the formula below.

Formula:

V = IR............... Equation 1

Where:

V = VoltageI = CurrentR = Resistance

From the question,

Given:

I = 5 AR = 10 ohm

Substitute these values into equation 1

V = 5×10V = 50 V

Hence, the voltage of the resistor is 50 V. Correct option d. 50 volts.

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If heating 3 g of a substance by 2 °C requires X joules of heat, how much heat will be needed to heat 9 g of the same substance by 4 °C?

Answers

Answer:

Explanation:hffdghbjhhfgdvbjnjhjvcfgdfcvhjkm,kjjhgjh

q=mct, for this problem c is constant since the same object is being used. so first condition: x= 3 * 2 * c = 6c, second condition: y = 9 * 4 * c = 36c, where y is our answer. using these equations: y=6x , the answer is 6x

what does the solar wind consist of? choose one: a. dangerous radiation b. ice and dust c. hydrogen and helium d. solar energy

Answers

Answer:

C

Explanation:

it consist of hydrogen and helium

Electromagnetic waves are transverse waves. They consist of traveling electric and magnetic fields which oscillate periodically. What angle does the electric field make with the magnetic field in an electromagnetic wave?

A.) 30
B.) 45
C.) 60
D.) 90

Answers

Answer:

The answer is D.) 90

Explanation:

the electromagnetic wave is a transverse wave. the electric field makes an angle of 90° with the magnetic field. both these fields, in turn, make an angle of 90° with the direction of movement of the wave.

What is an inertial frame of reference? does a perfect inertial frame of reference exist, and if it does, give me an example?

Answers

Answer:

Within the realm of Newtonian mechanics, an internal frame of reference or internal reference frame, is one in which newton's law of motions is valid

How much energy does a 50kg rock have if it sitting on the edge of a 15m cliff

Answers

Answer:

14715 joules

Explanation:

xchegg a 100 lb block is pushed along a horizontal surface by force p the coefficient of friction between the block and the horizontal surface is 0.4

Answers

To push the 100 lb block along the horizontal surface with a coefficient of friction of 0.4, an applied force of at least 40 lb is required.

The coefficient of friction between the block and the horizontal surface affects the force required to push the block. In this case, the coefficient of friction is given as 0.4.
To find the force required to push the block, we need to consider the frictional force opposing the motion. The frictional force can be calculated using the equation F_friction = coefficient of friction * normal force.
The normal force is equal to the weight of the block, which is 100 lb.

Therefore, the normal force is 100 lb.
Substituting the values into the equation, we get F_friction = 0.4 * 100 lb.
So, the frictional force opposing the motion is 40 lb.
To overcome this frictional force, the applied force (force p) must be greater than or equal to 40 lb. If the applied force is less than 40 lb, the block will not move.
In conclusion, to push the 100 lb block along the horizontal surface with a coefficient of friction of 0.4, an applied force of at least 40 lb is required.

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what is the acceleration (in m/s2) of gravity on the surface of the moon? m/s2 (b) what is the acceleration (in m/s2) of gravity on the surface (or outer limit) of venus? the mass of venus is 4.88 ✕ 1024 kg and its radius is 6.06 ✕ 106 m.

Answers

The acceleration due to gravity on the surface of the Moon is 1.635 m/s² and on the surface of Venus is 8.8634 m/s².

What is the acceleration due to gravity?

There is acceleration, gravitational force, and acceleration due to gravity, all three are completely different from each other.

Acceleration due to gravity denoted by 'g' is the combined force of centrifugal force and gravitation force.Here g= 9.8 m/s² this force is caused by the force acting on the body due to the gravitational field.

We know that the acceleration of gravity on the moon = 1/6 acceleration of gravity on the Earth

Therefore, the acceleration of gravity on the surface of the moon is given as

= 9.81 / 6

= 1.635 m/s²

b) For any planet (Venus) the acceleration of gravity is given as

g = GM/ R²

G = 6.67 × 10⁻¹¹

M = 4.88 × 10²⁴

R = 6.06 × 10⁶

g = ( 6.67 × 10⁻¹¹)(4.88 × 10²⁴) / (6.06 × 10⁶)²

g = 8.634 m/s²

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trong trường hợp nào các vật rơi tư do với cùng một gia tốc g ?

Answers

I don’t speak that language lol

Part B
What trend do you observe in the Total Energy column at all the positions?

Answers

When an object moves from one location to another, the force changes the potential energy of the object by an amount that does not depend on the path taken. Instead, they transfer the energy from the system in an energy form which can not be used by the force to transfer it back to the object in motion.

Explain and reason why the the moon rotates around the earth every lunar cycle
Pls explain ASAP
Best answer will be marked as BRAINLIEST✨

Answers

Gravity created an earth-side bulge in the moon, slowing down this rotation in the past to create the synchronous rotation and keeping the longer lunar access toward our world.

Particles q1, 92, and q3 are in a straight line.
Particles q1 = -5.00 x 10-6 C,q2 = -5.00 x 10-6 C,
and q3 = -5.00 x 10-6 C. Particles q₁ and q2 are
separated by 0.500 m. Particles q2 and q3 are
separated by 0.500 m. What is net force on 93?
Remember: Negative forces (-F) will point Left
Positive forces (+F) will point Right
-5.00 x 10-6 C
91
0.500 m-
-5.00 x 10-6 C
92
-5.00 x 10-6 C
93
0.500 m-

Particles q1, 92, and q3 are in a straight line.Particles q1 = -5.00 x 10-6 C,q2 = -5.00 x 10-6 C,and

Answers

The answer to the question is 1.125  Newton

Formula for electrostatic force is F = ( K q1 q2 )/ r²

where q1 and q2 represent the charges and r represents the distance between them and the value of K is 9 × 10⁹.

Total net force on q3 will be the summation of electrostatic force between q1 and q3 and electrostatic force between q2 and q3, as all the three charges are of same sign and lie in the same line.

Electrostatic force between q1 and q3

r will be 0.500 + 0.500 = 1 m

F = ( K q1 q3 )/ r²

F = ( (9 × 10⁹ ) x (5.00 x 10⁻⁶) x (5.00 x 10⁻⁶) )/ 1²

F₁₃ = 2.25  × 10⁻¹ N

Electrostatic force between q2 and q3

r will be 0.500 m

F = ( K q1 q3 )/ r²

F = ( (9 × 10⁹ ) x (5.00 x 10⁻⁶) x (5.00 x 10⁻⁶) )/ 0.5²

F = (225 × 10⁻³) / (25 × 10⁻²)

F₂₃ = 9 × 10⁻¹ N

Total force on q3 will be F₁₃ + F₂₃

Total force on q3 =  ( 2.25  × 10⁻¹ ) + (9 × 10⁻¹ ) N

Total force on q3 =  ( 2.25  × 10⁻¹ ) + (9 × 10⁻¹ ) N

Total force on q3 =  ( 11.25  × 10⁻¹ ) N

Total force on q3 =  1.125  N

Thus after solving we got the net force on q3 as 1.125  Newton

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If the change in velocity increases, what happens to the acceleration during the same time period?
O Acceleration decreases.
O Acceleration increases
O Acceleration becomes negative.
O Acceleration becomes steady

Answers

The answer is B hope this helps

If the change in velocity increases, the acceleration during the same time period increases as well. The correct option is B.

What is electric current?

Electric current is the flow of electric charge through a conducting material, such as a wire. It is measured in units of amperes (A), which represents the rate of flow of electric charge.

The standard definition of electric current is that it is the amount of electric charge passing through a given area of a conductor in unit time.

Mathematically, electric current is expressed as:

I = Q / t

Where

I = the electric current,

Q =the amount of electric charge that flows through a conductor,

t = the time interval during which the charge flows.

The unit of electric charge is coulombs (C), which represents the charge carried by a current of one ampere flowing for one second. So, one ampere of electric current represents a flow of one coulomb of electric charge per second.

Electric current is typically measured using an ammeter, which is a device that is inserted in series with a circuit to measure the current flowing through it. The ammeter is designed to have very low resistance, so it does not significantly affect the current flowing through the circuit being measured.

Here in the question,

If the change in velocity increases, the acceleration during the same time period increases as well. This is because acceleration is directly proportional to the change in velocity over time, as expressed by the formula:

a = (v_f - v_i) / t

Where

a = acceleration,

v_f = the final velocity,

v_i = the initial velocity,

t = the time interval during which the velocity changes.

If the change in velocity is greater, the numerator of the equation is larger, and therefore, acceleration is greater. Similarly, if the time interval is kept constant, an increase in velocity change leads to an increase in acceleration.

Therefore, when velocity increases the acceleration also increases.

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Hierarchy of the universe this is due today pls help me

Answers

Answer:

what is the question.

Explanation:

The Universe has a hierarchy: structural stages, from the smallest of quantum particles to the largest of cosmic scaffolding, extending through the entirety of reality. Somewhere in the centre, the galaxies themselves lie.

A 120-kg roller coaster cart is being tested on a new track, and a crash-test dummy
is loaded into it. The roller coaster starts from rest at point A which is 25 m above
point B. If the track near to point B is in the shape of a circle with a radius of 15 m,
and the cart is moving at 22 m/s at point B, what centripetal acceleration does the
cart experience at that point?

A 120-kg roller coaster cart is being tested on a new track, and a crash-test dummyis loaded into it.

Answers

Answer:

32 m/s².

Explanation:

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

Mass (m) of cart = 120 Kg

Radius (r) = 15 m

Velocity (v) = 22 m/s

Centripetal acceleration (a) =?

The centripetal acceleration experienced by the cart can be obtained as illustrated below:

a = v²/r

a = 22² / 15

a = 484 / 15

a = 32.27 ≈ 32 m/s²

Thus, the centripetal acceleration experienced by the cart is approximately 32 m/s².

Two carts (100 g and 150 g) on an air track are separated by a compressed spring. The spring is released. Represent the process with a momentum bar chart (a) with one cart as the system and (b) with both carts as the system. (c) Write expressions for all of the physical quantities you can from this

Answers

Answer:

The momentum bar chart is a tool used to track the changes in momentum of objects in a system over time.

(a) With one cart as the system:

Initial Momentum: m1v1

Final Momentum: m1v1'

Change in Momentum: m1(v1' - v1)

(b) With both carts as the system:

Initial Momentum: m1v1 + m2v2

Final Momentum: m1v1' + m2v2'

Change in Momentum: (m1 + m2)(v1' + v2' - v1 - v2)

The above expressions represent the changes in momentum of the carts, where m1 and m2 are the masses of the carts, v1 and v2 are their initial velocities, and v1' and v2' are their final velocities. The expressions can be used to calculate the net force acting on the carts using Newton's second law, F = Δp/Δt, where Δp is the change in momentum and Δt is the change in time.

Physical quantities that can be calculated from this scenario include the initial and final momentum of the carts, the change in momentum, the net force acting on the carts, and the acceleration of the carts.

Pink
Green
Red
Black
Blue
Yellow
Orange
"Milk colour"


what planet colour is that ??

thankyou for helping​

Answers

Answer:

Pink - Pluto

Green - Mercury

Red - Mars

Black - Saturn

Blue - Neptune

Yellow - Jupiter

Orange - Jupiter

Milk Color - Venus

Explanation:

The galaxy is full of colors. There are various planets in the galaxy which are different colored. Their color is usually determined by the gases present there. The pink gases present near the Pluto makes Pluto appears to be of magenta or pink colored. The mercury is green colored because it reflects green rays. Mars is called the Red planet because of presence of Martin Rocks there.

a child on a swing set swings back and forth with a period of 3.3 s and an amplitude of 25°. what is the maximum speed of the child as she swings?

Answers

A child on a swing set swings back and forth with a period of 3.3 s and an amplitude of 25° the maximum speed of the child as she swings is approximately 0.829 m/s.

To find the maximum speed of the child as she swings, we can use the formula for the velocity of an object in simple harmonic motion:

v = Aωcos(ωt)

where A is the amplitude of the motion, ω is the angular frequency (ω = 2π/T, where T is the period of the motion), and t is the time.

Given:

- T = 3.3 s (period of the motion)

- A = 25° (amplitude of the motion)

To use the formula, we need to convert the amplitude from degrees to radians:

- A = 25° * (π/180)

= 0.4363 radians

Now we can calculate the angular frequency:

- ω = 2π/T

= 2π/3.3

= 1.90 rad/s

At the maximum displacement (when the child is at the bottom of the swing), the velocity is at its maximum.

At this point, cos(ωt) = 1, so we can simplify the formula to:

v = Aω

Substituting the values, we get:

- v = 0.4363 radians * 1.90 rad/s = 0.829 m/s

Thus, the maximum speed of the child as she swings is approximately 0.829 m/s.

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What atmospheric constituent is responsible for the blue color of uranus and neptune?.

Answers

Answer:

Neptune's atmosphere is made up predominately of hydrogen and helium, with some methane. The methane is part of what gives Neptune its brilliant blue tint, as it absorbs red light and reflects bluer colors. Uranus also has methane in its atmosphere, but has a duller shading.

Explanation:

The low temperatures of these distant planets allow for the formation of methane clouds that contribute to the blue color.

hope it's help you.....

a transfer of energy without a transfer of mass describes what?

Answers

Explanation:

Wave motion

ex...longitudinal wave.

Determine the molality of a solution prepared by dissolving 4.08 g of hexane in 89.1 g of benzene.

Answers

The molality of the solution made by dissolving 4.08 g of hexane in 89.1 g of benzene is 0.527 M

What is molality?

This is simply defined as the mole of solute per kilogram of solvent. It can be expressed mathematically as:

Molality = mole of solute / mass (in Kg) of solvent

How to determine the mole of hexaneMass of hexane = 4.08 gMolar mass of hexane = 86 g/molMole of hexane =?

Mole = mass / molar mass

Mole of hexane = 4.08 / 86

Mole of hexane = 0.047 mole

How to determine the molality of the solution

The molality of the solution can be obtained as illustrated below:

Mole of solute (hexane) = 0.047 moleMass of solvent (benzene) = 89.1 g = 89.1 / 1000 = 0.0891 KgMolality =?

Molality = mole of solute / mass (in Kg) of solvent

Molality = 0.047 / 0.0891

Molality = 0.527 M

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