the energy for building a proton gradient is provided by

Answer:

Decreases

Explanation:

Answer:

Decreases

ExplanatIon:

Answer:

Explanation:

For every action (or force), there is an equal and opposite action (or force).

The acceleration of the ball is  0.813m/s^2

We know that according to second law of motion,

F= ma

Total force = 10N+2.2N= 12.2N

M= 15 kg

a= F/M = 12.2/15= 0.813m/s^2

Newton's first law of motion describes the behavior of objects whose forces are all balanced. The first law, often known as the law of inertia, asserts that if the forces acting on an object are balanced, the object's acceleration is 0 m/s/s. Objects in equilibrium (the state in which all forces are equal) will not accelerate. Newton stated that an object will only accelerate if it is subjected to a net or unbalanced force. An item will accelerate in the presence of an imbalanced force, changing its speed, direction, or both speed and direction.

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Answer:

Explanation:

The formula to analyze motion in the vertical (or y) dimension is

\(A_y=Asin\theta\) which says that the motion in the y-dimension is equal to the magnitude of the A vector times the sin of the angle.

The formula to analyze motion in the horizontal (or x) dimension is

\(A_x=Acos\theta\) which says that the motion in the x-dimension is equal t the mignitude of the A vector times the cosine of the angle.

Many times this is used to find the upwards velocity and the horizontal velocity when an overall velocity is given with an angle of inclination.

The tension in an elevator cable if the 1 500-kg elevator is descending with an acceleration of 2.8 m/s² is 18,900 N.

The tension in the elevator cable, for net force is :

\(F_{net} = ma\)

where \(F_{net}\) is the net force,

m is the mass of the elevator, and

a is the acceleration of the elevator.

Since the elevator is descending, we can take the upward direction as positive.

The forces acting on the elevator are the force of gravity (mg) and

the tension in the cable (T), where T is in the upward direction.

Therefore, the net force acting on the elevator is:

\(F_{net}= T - mg\)

where g is the acceleration due to gravity (9.8 m/s²).

Substituting the given values into the equation:

\(F_{net} = T - mg\)

\(ma = T - mg\)

Rearranging the equation, we get:

\(T = ma + mg\)

where T is the tension in the cable,

m is the mass of the elevator,

a is the acceleration of the elevator, and

g is the acceleration due to gravity.

Also Substituting the given values:

T = (1500 kg) × (2.8 m/s²) + (1500 kg) × (9.8 m/s²)

T = 4200 N + 14700 N

T = 18900 N

Therefore, the tension in the elevator cable is 18,900 N when the 1,500-kg elevator is descending with an acceleration of 2.8 m/s², downward.

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Answer:

Energy that is dependant on height is called gravitational potential energy.

The formula for potential energy is:

                    G.P.E.=mgh

Weight (mass x gravity) determines the amount of potential energy.

Is there potential energy in the 5 forms of energy?

Yes, potential energy can be found in fossil fuels, within the foods you eat, and the batteries that you use.  

Conservation of Energy:

It is important to understand that each form of energy does not exist separately but undergoes change from one to another without a net loss in energy.  Consider this example:

As a projectile is launched into the air KE is at its maximum.  As the projectile gains altitude PE becomes greater than KE.  At the top of its arc, PE is at its maximum.  The whole cycle reverses itself on the way down.

As you can see, the loss in KE is a gain in PE.  Energy is not lost but conserved.

Law of conservation of energy.

   Energy cannot be created nor destroyed.  It can be transformed from one form to another, but the total amount of energy never changes.

Answer:

 All particles of matter have mass, and they are composed of atoms.

Aerobic exercise helps you lose weight and keep it off when combined with a good diet.

When you first begin regular aerobic exercise, you could feel exhausted. But over time, you'll benefit from more endurance and less weariness.

Over time, you can also improve your bone and muscle strength as well as your heart and lung health.

Regular aerobic exercise like walking, cycling, or swimming can improve your health and length of life.

You repeatedly contract your arms, legs, and hip muscles when engaging in aerobic exercise. You'll become aware of your body's reactions immediately.

You'll deepen and speed up your breathing. The amount of oxygen in your blood is increased as a result. As a result of your heart beating more quickly, more blood will reach your muscles and return to your lungs.

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The ratio of the reactance of the inductor to that of the capacitor at a frequency of 150 is (150L)*(150C).

To find the ratio of the reactance of the inductor to that of the capacitor, we need to consider the formula for the reactance of a capacitor and an inductor.

The reactance of a capacitor (Xc) is given by the formula Xc = 1/(2πfC), where f is the frequency and C is the capacitance.

The reactance of an inductor (Xl) is given by the formula Xl = 2πfL, where f is the frequency and L is the inductance.

Given that the reactance of the capacitor equals that of the inductor at a certain frequency, we can set the two formulas equal to each other:

1/(2πfC) = 2πfL

Now, let's solve for the ratio of Xl to Xc by dividing the reactance of the inductor (Xl) by the reactance of the capacitor (Xc):

(Xl/Xc) = (2πfL)/(1/(2πfC))

Simplifying, we can cancel out the f terms:

(Xl/Xc) = (2πfL)*(2πfC)

Further simplifying, we can cancel out the 2π terms:

(Xl/Xc) = (fL)*(fC)

Finally, substituting the given frequency of 150:

(Xl/Xc) = (150L)*(150C)

So, the ratio of the reactance of the inductor to that of the capacitor at a frequency of 150 is (150L)*(150C).

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Answer:

15 m/s

Explanation:

Given:

F = 0.7N   m = 0.25g = 0.0025kg   x = 40cm = 0.4m \(v_{0}\) = 0

Since F = ma, a = F/m = 0.7N/0.0025kg = 280m/\(s^{2}\)

Using the Big Five, \(v ^{2} = v_0^{2} + 2ax\), \(v = \sqrt{0 + 2*280m/s^2*0.4m} = \sqrt{216} m/s= 15m/s\)

We have that for the Question it can be said that  the speed of the marshmallow as it leaves the pipe is most nearly

v=15m/s

From the question we are told

A 2.5 g marshmallow is placed in one end of a 40 cm pipe, as shown in the figure above. A person blows into the left end of the pipe to eject the marshmallow from the right end. The average net force exerted on the marshmallow while it is in the pipe is 0.7 N. The speed of the marshmallow as it leaves the pipe is most nearly

Generally the equation for the acceleration  is mathematically given as

\(a=\frac{Force}{mass}\\\\a=\frac{F}{m}\\\\Therefore\\\\a=\frac{0.75}{0.0025}\\\\a=280m/s^2\\\\\)

Using Newtons

V^2=u^2+2as

V^2=2(280)*0.4

v=15m/s

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Answer:

“They may feel colder but that's only an illusion,” Dr. Begley says. “Copper mugs actually absorb heat from the room faster than a glass.” Copper is an excellent thermal conductor, meaning it transfers heat from hot sources (like the room or your hand) to cold sources (like your drink) very efficiently.

Explanation:

The temperatures on the Jovian planets were low enough to for the buildup of ice, which resulted in planets with massive sizes.

The largest planets in the solar system are also the ones with the lowest average densities because they are the ones closest to the sun. The larger gas and ice giants have a tendency to form further from the Sun because the regions closer to the Sun are too warm for the lighter gases to condense there. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune are in order of proximity to the sun. Pluto, which was once thought to be the outermost planet, is now categorized as a dwarf planet. Pluto is not the only dwarf planet that has been found farther from the Sun. Out of all the planets in our solar system, Saturn has the lowest density. Saturn would float in a large enough body of water because it is less dense than water. But Saturn's mass is over 95 times greater than that of the Earth.

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The kinematic relations allow finding the results for the different questions are:

     1.  The acceleraations is a = 375 m/s²

     2. The time is t = 62.5 s

     3. The velocity at the ground is  v = -14.7 m / s

     4.  The time to the bottoncliff is    1.7 s

     5.  The height isy₀ = 122.5 m

     6.

         A) The velocity is v = 25.2 m / s

         B)  The height  for t=1 s is  y = 18.1 m

     7.

         A)  Time in the air is t = 2 s

         B)  The final veloicty is   v = - 19.6 m / s

Kinematics analyzes the movement of bodies, finding relationships between the position, velocity and acceleration of bodies.

Let's look for the answers to a series of questions:

1. They indicate the initial and final velocities of the body and the time to reach it is 20 s, ask how much the acceleration is worth

Let's use the relationship

             v = v₀ + a t

             a = \(\frac{v-v_o}{t}\)

             a = \(\frac{17500-10000}{20}\)

             a = 375 m/s²

2. What is the time it takes to travel a distance of 125 m with an acceleration of 4 m / s²

             x = v₀ t + ½ a t²

As it leaves the direction its initial velocity is zero

             x = ½ to t²

             t = \(\sqrt{\frac{2x}{a} }\)

             t = \(\sqrt{\frac{2 \ 125}{4} }\)

             t = 62.5 s

3. A pencil falls from a height and reaches the floor in a time of 1.5 s what is the speed when reaching the floor

            v = v₀ - g t

As it is released its initial velocity is zero

            v = -g t

            v = - 9.8 1.5

            v = -14.7 m / s

The negative sign indicates that the velocity is directed downwards.

4. From the edge of a cliff 40 m high, an apple is thrown downward with an initial velocity of 15 m / s. How long does it take to get to the bottom?

             y = y₀ + v₀ t - ½ g t²

In this case the initial velocity is negative because it is directed downwards and when it reaches the floor its height is zero, let us substitute

Suppose the acceleration is g = 10 m / s²

             0 = 40 - 15 t - ½ 10 t²

             0 = 40 - 15 t - 5 t²

let's solve the quadratic equation

             t² + 3 t - 8 = 0

             t = -3 + Ts 9 + 4 8/2

            t = -3 + 6. 4/2

             t₁ = - 4.9 s

            t₂ = 1.7 s

The time must be a positive quantity, so the correct answer is 1.7 s

5. A stone is dropped from the ceiling and it takes a time 5 s to reach the floor, which is the height of the ceiling

           y = y₀ +v₀ t - ½ g t²

as it is released from the ceiling its initial velocity is zero and the height upon reaching the floor is zero

          0 = y₀ + 0 - ½ g t²

          y₀ = ½ g t²

          y₀ = ½ 9.8 5²

          y₀ = 122.5 m

6. A man at a height of 30 m throws a ball downward at 7 m / s

    A) The speed when reaching the ground

    B) The height of the ball when a time of 1 s has fallen.

  A) Let's use the kinematics relation

              v² = v₀² - 2 g (y -y₀)

              v = 7² - 2 9.8 (0 -30)

              v = 25.2 m / s

 B)   y = y₀ + v₀ t - ½ g t²

        y = 30  7 1 - ½ 9.8 1²

        y = 18.1 m

7.  A watermelon is dropped from rest from the top of a 20m cliff.  

 A) time in the air

 B) ground speed

  A) Let's use the relation

       y = y₀ + v₀ t - ½ g t²

It is released its initial velocity is zero and when it reaches the ground its height is zero (y = 0)

       0 = y₀ + 0 - ½ g t²

       t = \(\sqrt{\frac{2y_o}{g} }\)

       t = \(\sqrt{\frac{2 \ 20}{9.8} }\)

       t = 2 s

B) the speed when reaching the ground

       v = v₀ - g t

       v = 0 - 9.8 2

       v = - 19.6 m / s

The negative sign indicates that the speed is down

In conclusion using the kinematic relations we can find the results for the different questions are:

   1.  The acceleraations is a = 375 m/s²

   2. The time is t = 62.5 s

   3. The velocity at the ground is  v = -14.7 m / s

   4.  The time to the bottoncliff is    1.7 s

   5.  The height isy₀ = 122.5 m

   6.

      A) The velocity is v = 25.2 m / s

      B)  The height  for t=1 s is  y = 18.1 m

  7)

      A)  Time in the air is t = 2 s

      B)  Te final veloicty is   v = - 19.6 m / s

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The car with a velocity of 77 km/h, during a hard sneeze of 0.40 s, moves  8.56 m

Applying the distance formula from the uniformly rectilinear motion (URM), we have:

x = v * t

Where:

Information about the problem:

Converting the velocity units from km/h to m/s, we get:

77 km/h * (1000 m/ 1 km) * (1 h/ 3600 s) = 21.389 m/s

Applying the distance formula we have that:

x = v * t

x= 21.389 m/s * 0.40 s

x = 8.56 m

It is a physical quantity that indicates the displacement of a mobile per unit of time, it is expressed in units of distance per time, for example (miles/h, km/h).

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Answer:

the one with a higher mass

Explanation:

The body with more mass will have the greater kinetic energy of the two.

Kinetic energy is the energy due to the motion of body. It is mathematically expressed as:

           K.E  = \(\frac{1}{2}\)  m v²

m is the mass

v is the velocity

 Since the velocity of the two bodies are the same, and mass is directly proportional to kinetic energy, the body with more mass will have a higher kinetic energy.

 So between mass m1 and mass m2, the one with a greater mass will have a higher kinetic energy

Answer:

True

Explanation:

APEX APPROVED

The region A is receiving more sunlight and there are experience  summer because, the northern hemisphere of earth is tilted towards the sun. Hence, option D is correct.

Different seasons on earth are made by the revolution of earth through sun and the tilted axis of earth's rotation make the seasons differ in each region. Earth is not in perfect circular motion, the tilt in the rotational axis of earth make the difference in sunlight radiated in each point of earths surface.

The northern hemisphere of earth is tilted towards sun. Thus, northern hemisphere have more heat radiated than the south. The Atlantic region in the south is far from sun and that's why  there is always cold and winter.

The region A is in the northern hemisphere and it experience summer because of the tilted axis. Thus option D is correct.

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Answer:

d: 870 Hz

Explanation:

If an early frost destroys most of the apple crop, the equilibrium price of an apple is likely to increase.

An early frost that damages a significant portion of the apple crop would result in a decrease in the supply of apples. When the supply decreases, while demand remains constant or even increases, it creates a situation where the quantity demanded exceeds the quantity supplied. This imbalance in the market typically leads to an increase in the equilibrium price of apples.

With a reduced supply of apples, consumers would still desire to purchase them at the same or even higher quantities, especially if there are no close substitutes available. As a result, buyers may be willing to pay a higher price to secure the limited supply of apples. This increased demand coupled with the decreased supply causes the equilibrium price to rise.

Moreover, the extent of the increase in price will depend on the severity of the frost damage and the elasticity of demand. If the damage is severe and there are no alternative sources of apples, the price increase may be significant. However, if there are other regions or countries with unaffected apple crops that can fulfill the demand, the price increase may be relatively moderate.

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Answer:  \(135.48\ m/s^2\) ,\(13.82g\)

Explanation:

Given

Missile velocity raises from 0 to \(8.4\ km/s\)

Time taken \(t=62\ s\)

Convert velocity into m/s

\(\Rightarrow 8.4=8.4\times 1000=8400\ m/s\)

Acceleration is the change of velocity w.r.t time

\(\Rightarrow a=\dfrac{8400-0}{62}\\\\\Rightarrow a=135.48\ m/s^2\)

In terms of gravity, it is

\(\Rightarrow \dfrac{135.483}{9.8}=13.82\)

Therefore, acceleration in terms of g is \(13.82g\)

The common angular speed is 6.5 x 10^⁻⁴ rad/s

To calculate the common angular speed of the reels during play, we need to first determine the linear speed of the tape on the outer reel. We can use the formula:

Linear speed = tape length / play time

So the linear speed of the tape on the outer reel is:

Linear speed = 281 m / (2 h * 3600 s/h)

                       = 0.078 m/s

Then we can use the formula for linear speed to find the angular speed:

Linear speed = angular speed x radius

So the angular speed of the outer reel is:

Angular speed = Linear speed / radius

= 0.078 m/s / (45 mm / 1000 m/mm)

= 1.7 x 10^⁻⁴ rad/s

The inner reel radius is 12mm, so the angular speed of the inner reel is:

Angular speed = Linear speed / radius

= 0.078 m/s / (12 mm / 1000 m/mm)

= 6.5 x 10^⁻⁴ rad/s

This is the common angular speed of the reels when both have the same angular speed.

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Answer:

a = 0.8m/s^2

F = 39.28 N

Explanation:

Sum of forces in X direction = 650cos(35)N-493.249N

Sum of forces in X direction= 39.28 N

F = m*a

a = F/m

a = 39.28N/49kg

a = 0.8 m/s^2

Answer:

2

Explanation:

ate kinus to plis ffffg

Therefore, the correct answer is c. 20 N/kg

To solve this problem, we need to consider the relationship between weight, mass, and gravitational field strength.

Weight is the force experienced by an object due to gravity, and it is given by the formula:

Weight = mass * gravitational field strength

Let's assume the gravitational field strength on Earth is g, and the weight of the astronaut on Earth is W.

According to the problem, the weight of the astronaut at the given location is 25 percent of what he would weigh on Earth. Mathematically, this can be expressed as:

Weight at location = 0.25 * Weight on Earth

Using the formula for weight, we can rewrite this as:

mass * gravitational field strength at location = 0.25 * (mass * gravitational field strength on Earth)

The mass of the astronaut cancels out from both sides of the equation, and we are left with:

gravitational field strength at location = 0.25 * gravitational field strength on Earth

Now, we know that the weight of an 80 kg astronaut on Earth is equal to the force of gravity acting on him, which is given by:

Weight on Earth = mass * gravitational field strength on Earth

W = 80 kg * g

We can substitute this value into the equation for the gravitational field strength at the location:

gravitational field strength at location = 0.25 * (80 kg * g)

gravitational field strength at location = 20 kg * g

So, the magnitude of the gravitational field at the location where the astronaut weighs 25 percent of what he would weigh on Earth is 20 N/kg.

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Answer:

2.78m/s²

Explanation:

Complete question:

A box is placed on a 30° frictionless incline. What is the acceleration of the box as it slides down the incline when the co-efficient of friction is 0.25?

According to Newton's second law of motion:

\(\sum F_x = ma_x\\F_m - F_f = ma_x\\mgsin\theta - \mu mg cos\theta = ma_x\\gsin\theta - \mu g cos\theta = a_x\\\)

Where:

\(\mu\) is the coefficient of friction

g is the acceleration due to gravity

Fm is the moving force acting on the body

Ff is the frictional force

m is the mass of the box

a is the acceleration'

Given

\(\theta = 30^0\\\mu = 0.25\\g = 9.8m/s^2\)

Required

acceleration of the box

Substitute the given parameters into the resulting expression above:

Recall that:

\(gsin\theta - \mu g cos\theta = a_x\\\)

9.8sin30 - 0.25(9.8)cos30 = ax

9.8(0.5) - 0.25(9.8)(0.866) = ax

4.9 - 2.1217 = ax

ax = 2.78m/s²

Hence the acceleration of the box as it slides down the incline is 2.78m/s²

To find

Acceleration is a change in what quantity Over time?

Explanation

Acceleration is defined as the change in velocity with respect to time interval.

Conclusion

The required quantity is

A. speed

Location of Boracay Island, Philippines:

Latitude 11.9674° N, Longitude 121.9247° E.

Boracay Island is a small island located in the Western Visayas region of the Philippines. It is known for its stunning white sand beaches and crystal-clear waters, making it a popular tourist destination. The island is situated approximately 315 kilometers south of Manila and is accessible by a 1-hour flight from Manila to Caticlan, followed by a short boat ride to the island. Boracay Island covers an area of approximately 10.32 square kilometers and is home to a population of around 32,000 people. The island has a tropical climate with an average temperature of 28°C, making it an ideal destination for tourists looking to escape the cold weather.

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The Communist Party of Germany (German: Communistic Partee Deutschland's, pronounced [kmunst pata dtlants]

KPD was a significant political force in the Weimar Republic from 1918 to 1933, a clandestine resistance organization in Nazi Germany, and a minor party in West Germany during the postwar years until it was outlawed by the Federal Constitutional Court in 1956.

Socialists who had opposed the war founded the party in the years following the First World War, and it participated in the Spartacist rebellion of January 1919, which aimed to establish a soviet republic in Germany. Following the uprising's failure and the murders of KPD leaders Leo Jogiches, Karl Liebknecht, and Rosa Luxemburg, the party briefly adopted a more moderate, parliamentary course under the direction of Paul Levi will be teaching the course on parliament. Typically receiving between 10 and 15 percent of the vote throughout the Weimar Republic era, the KPD had representatives in both the national Reichstag and state parliaments. The party became firmly Stalinist and obedient to the Soviet Union's leadership under Ernst Thomann's leadership starting in 1925. Starting in 1928, the Commenter in Moscow largely controlled and provided funding for the party. In the Weimar Republic, the KPD believed all other parties to be "fascists," and under Thomann's leadership, the party focused the majority of its attacks on the Social Democratic Party of Germany, which it viewed as its main rival and referred to as "social fascists.

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