write the different between the fall of a parachute on earth and its fall on the moon?on what condition does a body have free fall?
​

Explanation:

Power is change in energy over time.

P = (50 J) / (5 s)

P = 10 W

Answer: C

Explanation:

For this problem, we must divide.

50 ÷ 5 = 10

The answer to the question is 10

Answer:

Down Below

Explanation:

As nouns the difference between speed and strength

is that speed is the state of moving quickly or the capacity for rapid motion; rapidity while strength is the quality or degree of being strong.

Answer:

Explanation:is that speed is the state of moving quickly or the capacity for rapid motion; rapidity while strength is the quality or degree of being strong.

Answer:

1) Disolver azúcar en agua - Cambio químico - Es un caso de una solución en donde el solvente es el azúcar y el soluto es el agua.

2) Freir una chuleta - Cambio físico - Es un proceso de cocinado por un transferencia de calor y transferencia de masa.

3) Arrugar un papel - Cambio físico - Se aplica fuerzas externas para deformar el papel.

4) El proceso de la digestión - Cambio químico - Reducción de los alimentos a desechos y la absorción de nutrientes por el contacto con jugos gástricos o ambientes intestinales.

5) Secar la ropa al sol - Cambio físico - El secado es un fenómeno de transferencia de masa.

6) Congelar una paleta de agua - Cambio físico - Cambio del estado líquido al estado sólido por transferencia de calor.

7) Hacer un avión de papel - Cambio físico - Aplicación de fuerzas externas para plegar y doblar la hoja de papel.

8) Oxidación del cobre - Cambio químico - Proceso de corrosión por contacto con iones que se transportan en el ambiente.

9) Romper un lápiz - Cambio físico - Proceso de ruptura por esfuerzo normal a causa de un momento como consecuencia de una fuerza externa aplicada sobre el lápiz.

10) Prender fuegos artificiales - Cambio químico - Reacción química de reducción-oxidación.

11) Excavar un hoyo - Cambio físico - Remoción de tierra por trabajo físico.

12) Quemar basura - Cambio químico - Reacción de combustión.

Explanation:

A continuación, veremos que representa cada caso:

1) Disolver azúcar en agua - Cambio químico - Es un caso de una solución en donde el solvente es el azúcar y el soluto es el agua.

2) Freir una chuleta - Cambio físico - Es un proceso de cocinado por un transferencia de calor y transferencia de masa.

3) Arrugar un papel - Cambio físico - Se aplica fuerzas externas para deformar el papel.

4) El proceso de la digestión - Cambio químico - Reducción de los alimentos a desechos y la absorción de nutrientes por el contacto con jugos gástricos o ambientes intestinales.

5) Secar la ropa al sol - Cambio físico - El secado es un fenómeno de transferencia de masa.

6) Congelar una paleta de agua - Cambio físico - Cambio del estado líquido al estado sólido por transferencia de calor.

7) Hacer un avión de papel - Cambio físico - Aplicación de fuerzas externas para plegar y doblar la hoja de papel.

8) Oxidación del cobre - Cambio químico - Proceso de corrosión por contacto con iones que se transportan en el ambiente.

9) Romper un lápiz - Cambio físico - Proceso de ruptura por esfuerzo normal a causa de un momento como consecuencia de una fuerza externa aplicada sobre el lápiz.

10) Prender fuegos artificiales - Cambio químico - Reacción química de reducción-oxidación.

11) Excavar un hoyo - Cambio físico - Remoción de tierra por trabajo físico.

12) Quemar basura - Cambio químico - Reacción de combustión.

The electric potential at point b experienced by the charge cab be determined using the formulas given.

The electric potential of a point charge is the work done in moving the charge from infinity to certain point against the electric field.

V = Ed

V = (F/q)d

V = (Fd)/q

where;

Thus, the electric potential at point b experienced by the charge cab be determined using the formulas given.

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The independent variables of measuring physical properties are given below -

What is physical properties?

A physical properties in any property that is measurable, whose value describe a state of physical system.

The changes in the physical properties of a system can be used to describe its changes between the  momentary that state of

Physical properties are often referred to as observables.

They are not modal properties.

Any variable that can be attributed a value without attributes a value to any to any other variables is called independent variables.

It is a variable that stands alone and isn't changed by other variables you are trying to measure.

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The inner planets are small and dense while the outer planets are gas giants because the conditions in the early solar system affected their formation.

The inner planets are small and rocky because they formed in the inner, hotter region of the solar system, where it was too hot for gas to condense into solid form. As a result, the only materials available for them to form were the heavier elements that could withstand the high temperatures in the inner region.

On the other hand, the outer planets formed in the cooler, outer region of the solar system where it was cold enough for gas to condense into solid form. As a result, the outer planets were able to gather large amounts of gas, mainly hydrogen and helium, and they grew to be much larger than the inner planets, resulting in their classification as gas giants. The gas giants also have more moons and rings compared to the inner planets.

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Answer:

mechanic and potential?

Explanation:

Answer:

F = 4117.64

Explanation:

First, we will calculate the acceleration of the hand, by using the third equation of motion:

\(2as = v_f^2 - v_i^2\\\)

where,

a = acceleration = ?

s = distance covered = compression = 8.5 cm = 0.085 m

vf = final speed = 0 m/s

vi = iniial speed = 10 m/s

Therefore,

\(2a(0.085\ m) = (0\ m/s)^2-(10\ m/s)^2\\a = - 588.23\ m/s^2\)

negative sign hows deceleration.

Now, we will calculate the force exerted by the hand:

\(F = ma = (7\ kg)(588.23\ m/s^2)\\\)

F = 4117.64 N

Answer:

The value  is  \(s = 306.6 \ m\)

Explanation:

From the question we are told that

   The  acceleration is \(a = 2.52 \ m/s\)

    The speed to attain is \(v = 39.2 \ m/s\)

Generally the time taken is mathematically represented as

        \(t = \frac{v}{a}\)

=>    \(t = \frac{39.2}{2.52}\)

=>    \(t= 15.6 \ s\)

Generally from the kinematic equation we have that

      \(s = ut + \frac{1}{2}at^2\)

Here the initial  velocity is  zero i.e  u =  0 \  m/s (it started from rest)

So

     \(s = 0* 15.6 + \frac{1}{2} * 2.52 * (15.6)^2\)

=>  \(s = 306.6 \ m\)

It can be done by you only as we can't access those data in documents.

Let me show steps

Answer:

Mhm mhm yes very easy

Explanation:

The answer is 12345678910 and then subtract

Mark Brainliest!

Answer:

It is C the kelvin scale

Explanation:

Have a great day

answer:- external force is 2 N .

The force that impacts the ball motion is external force i.e. 2N.

Given that,

Based on the above information, the calculation is as follows:

= 7N - 5N

= 2N

This 2N represents the external force.

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Answer:

I think the answer should be C. I am not sure

Answer: c

Explanation: im pretty sure it’s C, because thermodynamics is the movement of heat. Kinda like an EMF Reader. (Electric Magnetic Feild reader). It’s complicated to explain how it works, but hey it works!

The Lyman series is in the ultraviolet region, while the Paschen, Brackett, and Pfund series are all in the infrared region of the electromagnetic spectrum.

These series represent the different sets of spectral lines corresponding to electron transitions in the hydrogen atom.

1. Lyman series: This series corresponds to electron transitions from higher energy levels to the first energy level (n=1). The lines in the Lyman series are found in the ultraviolet (UV) region of the electromagnetic spectrum.

2. Paschen series: This series corresponds to electron transitions from higher energy levels to the third energy level (n=3). The lines in the Paschen series are found in the infrared (IR) region of the electromagnetic spectrum.

3. Brackett series: This series corresponds to electron transitions from higher energy levels to the fourth energy level (n=4). The lines in the Brackett series are also found in the infrared (IR) region of the electromagnetic spectrum.

4. Pfund series: This series corresponds to electron transitions from higher energy levels to the fifth energy level (n=5). The lines in the Pfund series are found in the infrared (IR) region of the electromagnetic spectrum as well.

In summary, the Lyman series is in the ultraviolet region, while the Paschen, Brackett, and Pfund series are all in the infrared region of the electromagnetic spectrum.

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Answer:

2(3t-4)+3t=4t-2

This deals with linear equations with one unknowns

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The magnitude of the force that the object exerts on the child is 100 N.

option C is the correct answer.

Newton's third law of motion states that for every action there is an equal and opposite reaction. In other words, action and reaction are equal and opposite.

Mathematically, Newton's third is given as;

Fa = Fb

where;

If the child exerts 100 N force on the object, the reaction of the object or the upward force exerted on the child by the object is 100 N in opposite direction.

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Answer:

m = 3.75 [kg]

Explanation:

We must remember that momentum is defined as the product of mass by Velocity, therefore it can be represented by means of the following equation.

\(P=m*v\)

where:

P = momentum = 93.75 [kg*m/s]

m = mass [kg]

v = velocity = 25 [m/s]

Now replacing, we can clear the mass:

\(P=m*v\\m=P/v\\m=93.75/25\\m=3.75 [kg]\)

Answer:

In today's world pollution is very high so alternative energy such as solar energy help us to make pollution free world. So it is necessary to use alternative energy.

Answer:they are a renewable source

Explanation: because they come from the ocean and the ocean is 75% of the world so there will always be waves.

The ideal efficiency of an engine can be calculated using the Carnot efficiency formula. Given that the fuel is heated to 2100 K and the ideal efficiency is approximately 80%. Option D is correct.

The ideal efficiency of the engine can be calculated using the Carnot efficiency formula. The answer, expressed with two significant figures

The Carnot efficiency formula is given by:

\(Efficiency = 1 - (Tc/Th)\)

where Tc is the temperature of the colder reservoir generator (surrounding air) and Th is the temperature of the hotter reservoir (heated fuel).

Plugging in the values:

Tc = 200 K

Th = 2100 K

Efficiency = 1 - (200/2100) = 1 - 0.0952 ≈ 0.804 ≈ 80%

Therefore, the ideal efficiency of the engine, when the fuel is heated to 2100 K and the surrounding air is 200 K, is approximately 80%. This means that the engine can convert 80% of the heat energy into useful work, with the remaining 20% being lost as waste heat.

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The complete question is

calculate the ideal efficiency of an engine in which fuel is heated to 2100 k and the surrounding air is 200 k. express your answer using two significant figures. group of answer choices

A.  25 %

B. 20 %

C. 90 %

D. 80 %

E. none of these.

The falling flask has both kinetic and potential energy. As it falls, its potential energy decreases while its kinetic energy increases. At the point of impact with the floor, all the potential energy is converted to kinetic energy.

When the flask is falling from the edge of the table towards the floor, its energy is changing from potential energy to kinetic energy. Initially, the flask has potential energy due to its position above the ground. As it falls, it gains kinetic energy due to its motion. At the point where the flask is about to hit the floor, its potential energy is at a minimum, and its kinetic energy is at a maximum. However, it is important to note that the energy of the system is conserved, according to the law of conservation of energy. This means that the sum of the potential energy and kinetic energy of the system remains constant. As the potential energy decreases, the kinetic energy increases by an equal amount. Therefore, the energy of the flask is not just "mostly kinetic" or "mostly potential," but rather a combination of both potential and kinetic energy throughout its fall.

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The functional group circled in the term "aspirin" is the carboxylic acid group.

Aspirin, also known as acetylsalicylic acid (ASA)), is a nonsteroidal anti-inflammatory drug (NSAID) used to reduce pain, fever, and/or inflammation and as an antithrombotic. Specific inflammatory conditions that aspirin is used to treat include Kawasaki disease, pericarditis, and rheumatic fever.

Aspirin can also have very serious side effects, such as bleeding in the brain or stomach or kidney failure. A rare side effect of daily low-dose aspirin is hemorrhagic stroke. Aspirin can help prevent and treat a range of health issues, but people under 18 should not take it without medical guidance.

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Answer:

In a second class lever, the load is located between the effort and the fulcrum. If the load is closer to the fulcrum than the effort, then less effort will be required to move the load. If the load is closer to the effort than the fulcrum, then more effort will be required to move the load.

Explanation:

from what i learned, if its farther away from the load, its easier to lift, like a wheel barrel

Calcium Bromide, commonly known as calcium dibromide, is an ionic compound since the second element is a nonmetal, resulting in an ionic compound. It is referred to as a hydrated salt.

A chemical compound is a material made up of several similar molecules that include atoms from more than one chemical element and are kept together by chemical bonds. A molecule made up of only one element's atoms is hence not a compound.

A solution is a form of homogenous combination made of two or more components in chemistry. A solute in such a combination is a material that has been dissolved in another substance known as a solvent.

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Answer:

Explanation:

There are three states of matter; solid, liquid and gaseous states.

The solid state of matter has it's particles tightly packed with very restricted  or no movement within the molecule hence the reason for it's definite shape.

The liquid state of matter has it's particles with a free movement (better than solid but not as free as gases) within the molecule hence it's particles are loosely packed within the molecule. Hence, they (liquids) assume the shape of the container in which they are stored and they move freely when released from the container.

The gaseous state of matter has it's particles totally loosely packed as a result of it's particles moving freely and colliding against one another.

Thus, we can use the above descriptions to answer the statements from the question.

1) The atoms in a  ----- are closely packed, but able to slide past each other. Answer: From the description above, it can be deduced that the atoms here are in a solid because the particles within a solid are closely packed.

2) The atoms in a  -------- spread as far apart as possible.

Answer: The atoms here are in gaseous form because, as described earlier, they are loosely packed and  can thus be as far apart as possible.

3) A  ----- has a definite shape and volume.

Answer: As described earlier, a solid substance would have a definite shape and volume because it's particles are tightly packed.

4) The shape of a  ----- can change, but the volume is definite.

Answer: The substance here is a liquid because the particles are free (but not as free as gases) and would have a definite volume but will assume the shape of the any container they are placed in (hence they have an irregular shape).

Answer:

The atoms in a

✔ liquid

are closely packed, but able to slide past each other.

The atoms in a

✔ gas

spread as far apart as possible.

A

✔ solid

has a definite shape and volume.

The shape of a

✔ liquid

can change, but the volume is definite.

Explanation:

When a beam of electrons is directed into the electric field between two oppositely charged parallel plates, the electrostatic force exerted on the electrons is directed in the opposite direction to the direction of the electric field. This is because electrons have a negative charge and are attracted to the positively charged plate while being repelled by the negatively charged plate.

The strength of the electrostatic force on the electrons is determined by the magnitude of the electric field and the charge of the electrons. If the electric field is strong, the force on the electrons will be greater, causing them to accelerate towards the oppositely charged plate. However, if the electric field is weak, the force on the electrons will be smaller, resulting in slower acceleration.

It's important to note that the motion of the electrons is not affected by the motion of the charged plates. Even if the plates are moving, the electrostatic force on the electrons remains the same. This is because the force is determined solely by the electric field, which is determined by the positions of the charges.

In conclusion, when a beam of electrons is directed into an electric field between two oppositely charged parallel plates, the electrostatic force exerted on the electrons is directed oppositely to the direction of the electric field, causing them to accelerate towards the positively charged plate.

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