An apple has 6 J of energy. The apple sits on a counter 3 m high. What is the mass of the apple?

Answer:

8.33 m/s^2

Explanation:

The equation for force is Force = mass * acceleration. The force is 500 N, and the mass is 60 kg, so substituting those into the equation you get that 500 = 60 * acceleration. Divide 500 by 60 to get the acceleration, which is 8.33 m/s^2.

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The correct answer is B) In Plant Cells the Cell Membrane is the outermost layer of the cell while in animal Cells the Membrane separates the cell wall from everything inside the cell.

In plant cells, the cell membrane is the outermost layer of the cell. It acts as a protective barrier, controlling the movement of substances in and out of the cell. The cell membrane in plant cells is responsible for maintaining cell shape and integrity.

On the other hand, in animal cells, the cell membrane separates the cell wall from everything inside the cell. The cell wall provides structural support and protection to the cell, while the cell membrane controls the entry and exit of substances. The cell membrane in animal cells also plays a crucial role in cell signaling and communication.

In conclusion, the function of the cell membrane differs in plant and animal cells. In plant cells, it is the outermost layer, while in animal cells, it separates the cell wall from everything inside the cell.

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electrons are everywhere. you have gazillions of electrons in you! enough to power the whole world foe a year! but because they are part of the atom, removing them will cause your atoms to fall apart, thus killing you. buy to answer your question they are always there. they are parts of atoms so wherever there is something there is electrons.

Answer:

convective

Explanation:

If the current through the resistor is 2.80 A the terminal voltage of the battery is 23.2 V.

We can use Ohm's law to find the voltage drop across the resistor:

V = IR

Where V is the voltage drop, I is the current through the resistor, and R is the resistance.

Substituting the given values, we get:

\(V = (2.80)*(4.00) = 11.2 V\)

This is the voltage drop across the resistor. The voltage across the battery terminals will be higher than this by the amount of the battery's internal resistance, which we can assume to be negligible. Therefore, the terminal voltage of the battery is:

\(V_{Ter} = V + V_r\)

Where \(V_r\) is the voltage drop across the resistor.

\(V_{Ter}= 11.2 V + 12.0 V = 23.2 V\).

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The force needed to accelerate a 2500 kg car at a rate of 4m/s² will be  10,000 N.Option B is correct.

Force is defined as the push or pull applied to the body. Sometimes it is used to change the shape, size, and direction of the body. Force is defined as the product of mass and acceleration. Its unit is Newton.

Given data;

Force,F = ?

Mass,m = 2500 kg

Acceleration,a = 4 m/s²

The force is found as;

F=ma

F=2500 kg × 4 m/s²

F= 10,000 N

The force needed to accelerate a 2500 kg car at a rate of 4m/s² will be  10,000 N.

Hence option B is correct.

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Answer:

What "this"??? Where is it " this"???

Answer:

Reproduction

Explanation:

because reproduction produces variation within the species allowing the species to survive selection

Answer: D = reproduction

Explanation:

The equilibrium constant for a chemical reaction is equal to the value of the reaction. The equilibrium constant that is denoted by k is Keq = 1.8E4

The equilibrium constant for a chemical reaction is equal to the value of the reaction quotient at chemical equilibrium, a state that a dynamic chemical system approaches when enough time has elapsed and at which its composition has no observable tendency to change further.

We know that,\(\Delta G = -nFE0\)

and,\(\Delta G = - RT ln Keq\)

So, ln Keq = (nFE0 ) / (RT)         ----- (i)

E₀ = standard cell potential = 0.042 V

n = number of electrons transferred in the rxn = 6

F = 96,485 C/mol ,

 R = 8.314 J / mol * K

As T is not given so assuming it to be room temperature. So, T = 298 K

Putting all the values in equation (i):

ln Keq = (6 X 96,485 C.mol-1 X 0.042 V ) / (8.314 J mol-1 K-1 X 298 K)

ln Keq = 24314.22 C.V / 2477.572 J

Now, 1 coloumb X 1 volt = 1 joule

So, ln Keq = 24314.22 / 2477.572 = 9.814

Keq = 18288

Rounding to two significant figures:

Keq = 18000 = 1.8 X 104

So in scientific notation: Keq = 1.8E4

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The statement that pressure refers to the ratio of force to the area over which the force is applied is True.

Pressure is defined as the amount of force exerted per unit area, and is expressed in units such as pounds per square inch (psi) or pascals (Pa). This means that the greater the force applied over a smaller area, the higher the pressure will be.

For example, if you press down on a table with your hand, the pressure you exert will be lower than if you press down with the same force using just the tip of your finger, because the force is distributed over a larger area in the first case. Understanding pressure is important in fields such as physics, engineering, and medicine.

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Answer:

Hunubunununununununnunu

Answer:

The force of gravitational attraction between the satellite and Earth is \(2.587\times 10^{10}\) newtons.

Explanation:

Statement is incorrect. Correct statement is:

A satellite (\(m = 4.44\times 10^{9}\,kg\)) travels in orbit around the Earth at a distance of \(1.9\times 10^{6}\,m\) above Earth's surface. What is the force of gravitational attraction between the satellite and Earth?

The gravitational force experimented by the satellite (\(F\)), in newtons, is calculated by Newton's Law of Gravitation, whose equation is defined by following formula:

\(F = \frac{G\cdot m \cdot M}{R^{2}}\) (1)

Where:

\(G\) - Gravitational constant, in cubic meters per kilogram-square second.

\(m\) - Mass of the satellite, in kilograms.

\(M\) - Mass of the Earth, in kilograms.

\(R\) - Distance of the satellite with respect to the center of the Earth, measured in meters.

If we know that \(G = 6.674\times 10^{-11}\,\frac{m^{3}}{kg\cdot s^{2}}\), \(m = 4.44\times 10^{9}\,kg\), \(M = 5.972\times 10^{24}\,kg\) and \(R = 8.271\times 10^{6}\,m\), then the force of gravitational attraction between the satellite and Earth is:

\(F = 2.587\times 10^{10}\,N\)

The force of gravitational attraction between the satellite and Earth is \(2.587\times 10^{10}\) newtons.

The minimum velocity with which he must kick the ball is 22.22 m/s.

The time taken for the ball to travel 11 m height is calculated as follows;

h = V_yt + ¹/₂gt²

where;

h = ¹/₂gt²

t = √(2h/g)

the height traveled by the ball = 10m, since Joe is already 1 m above the ground.

t = √(2 x 10/9.8)

t = 1.43 seconds

The minimum velocity of the ball is calculated as follows;

R = Vₓt

Vₓ = R/t

Vcosθ = R/t

V = R/(tcosθ )

V = (20)/(1.43 x cos51)

V = 22.22 m/s

Thus, the minimum velocity with which he must kick the ball is 22.22 m/s.

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Given:

The initial velocity is

The initial position is x1 = 2.76 cm

The final position is x2 = - 5 cm

The time will be t = 2.25 s

To find the acceleration.

Explanation:

The acceleration can be calculated by the formula

Here, the displacement is

On substituting the values, the acceleration will be

Final Answer: The acceleration is -12.84 cm/s^2

We have that since \(F_1\) is moving to the right and its greater

The direction of Net force is  50m/s to the Right

Option A is correct

From the Question we are told that

Force 1 \(F_1=100\)

Force 2 \(F_2=50\)

Generally the Net force of two forces opposing each other is the difference between them

Therefore

The Net force between Force 1 and 2 is

\(F_t=F_1-F_2\)

\(F_t=100-50\)

\(F_t=50/s\)

In conclusion

Since \(F_1\) is moving to the right and its greater

The direction of Net force is  50m/s to the Right

Option A is correct

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Answer:

v_f = -7.5 m / s

Explanation:

Let's analyze this exercise a little, two forces that act on a body for different time intervals are indicated, each force creates an impulse and since this is a vector quantity we must add in the form of vectors. The net momentum is

we assume that the direction to the right is positive

             I = I₁ + I₂

             I = F₁ Δt₁ - F₂ Δt₂

             I = 3  1.5 - 4  3

             I = -7.5   N s

now let's use the relationship between momentum and momentum, suppose the object starts from rest (vo = 0)

             I = Δp

             I = m (v_f - v₀)

             v_f = I / m

              v_f = -7.5 / m

to finish the calculation we must assume a mass m = 1 kg

              v_f = -7.5 m / s

the negative sign in the body is moving to the left

The general manager target bonus plan includes financial incentives based on achieving specific performance goals.

The general manager target bonus plan is a type of incentive program that rewards managers for achieving specific performance goals. The plan typically includes financial incentives, such as bonuses or profit sharing, that are tied to the achievement of predetermined goals, such as revenue growth, cost reduction, or customer satisfaction.

The plan may also include other performance metrics, such as employee engagement or operational efficiency. By linking financial incentives to specific performance goals, the plan encourages managers to focus their efforts on areas that are critical to the success of the organization and helps align their interests with those of the company. Overall, the general manager target bonus plan is a key tool for motivating and rewarding managers and driving performance improvement within an organization.

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Unlike acceleration and velocity, speed does not need to specify the direction of motion. Speed is a scalar quality.

Answer:

minimize some of the steel and the handrails would be a lot more safer for the children

Explanation:

I would like to minimize the heat transfer from the handrails because when it is decrease, the friction will increase.

Any or all of a number of events, referred to as processes, known as heat transfer, are capable of moving energy + entropy from one place to another. Typically, convection, nonlinear thermal, etc. conduction are used to describe specific methods. It involves the slow, energy- and entropy-transfer-involved process of conduction between adjacent molecules.

A hot fluid, such as air, must move during convective; this process is typically quite quick.

Radiation is indeed the term for the electromagnetic radiation that is used to describe how energy is transferred from its emission at a heated surface to its absorption on that other surface without a medium.

The reason behind minimizing the heat transfer from the handrails is because when the heat transfer is decreased, the friction in the rails will increase, and it will be easy to hold them for support.

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The flash and report method is a simple and common technique used to measure the speed of sound. In this method, an observer measures the time between seeing a flash, such as from a gunshot or a firecracker, and hearing the corresponding sound. The observer is usually at a known distance from the source of the flash and sound.

To perform the experiment, the observer stands at a fixed distance away from the source of the flash and sound. When the flash is seen, they start a stopwatch or use any other timing device. Once they hear the sound, they stop the timer and note the time difference between the flash and the sound. This time difference is the time it takes for the sound to travel from the source to the observer.

The speed of sound can then be calculated using the formula: speed of sound = distance / time taken. The distance between the observer and the source is divided by the time difference recorded to find the speed of sound in the medium (usually air).

It is essential to ensure that the distance between the source and the observer is accurate and that the observer's reaction time is considered when measuring the time difference. External factors such as temperature, humidity, and altitude also affect the speed of sound and should be taken into account.

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The probable question may be:

Discuss the measurement of the speed of sound using the flash and report method?

Answer:

43.58 m

Explanation:

If you travel 500 m on a straight road that slopes upward at a constant angle of 5 degrees

Using trigonometry ratio

Sin 5 = opposite/hypothenus

Where the hypothenus = 500m

Opposite = height h

Sin 5 = h/500

Cross multiply

500 × sin 5 = h

h = 500 × 0.08715

h = 43.58m

Therefore, the height above the starting point is equal to 43.58m

Average speed = total distance covered/ total time taken

here on the graph y-axis is represented as distance and x-axis is showing time

So for the average speed of Train (line A)

total distance covered (d) = 1500 m

total time taken to reach that distance (t) = 150 s

so by a simple formula

For the average speed of  Car (line B)

Total distance covered (d) = 1500 m

total time taken to reach that distance (t) = 120 s

so by

For Maximum speed of roller- coaster (LineC)

So in the time between 70-80 seconds, it has the highest slop which shows the speed maximum at that time

In that 10 seconds, it covered 200 meters which shows its maximum speed which is

For the average speed of a Roller- coaster (line C)

Total distance covered (d) = 1300 m

total time taken to reach that distance (t) = 150 s

For the Train to Stoped at a station we can see from 40 seconds to 90 Seconds train has covered almost 0 distance which clearly shows that it was stopped which is 90-40= 50 seconds.

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Tension is the result of opposite forces in a connector. The tension pulls each object towards the center of the connector. Thus, the given statement is true.

Tension is the opposite force that is exerted by a rope, string, cable, or similar object on one or more objects. Anything which is pulled, hung, supported, or swung from a rope, string, and cable, etc. is subjected to the tension force. Like all the other forces, tension can also accelerate objects or cause them to deform from their original structure.

Newton's third law is that when a contact force acts between any two objects, both the objects experience the same magnitude of force, but in opposite directions to each other. In tension, the two objects which are attached with the rope pull on each other.

To determine the magnitude of tension, a formula is used:

2T sin(α) = m × g

where m × g represents is the weight of the suspended object.

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When two identical masses are attached by a light string that passes over a frictionless pulley, the system is in equilibrium. The tension in the string on each side of the pulley is equal to the weight of each mass.

Based on the given information, we have two identical masses connected by a light string that passes over a small pulley. The table and pulley are both frictionless.

Since the masses are moving, we can assume that there is some force acting on them. In this case, the force is provided by the difference in tension in the string on either side of the pulley.

To solve the problem, we need to consider the forces acting on the masses. The weight of each mass is acting downward, and we can denote it as mg, where m is the mass and g is the acceleration due to gravity.

Since the masses are identical, the weight of each mass is the same, so the tension in the string on each side of the pulley is also the same.

Let's assume that mass 1 is on the left and mass 2 is on the right. The force of tension in the string on the left side of the pulley is equal to the weight of mass 1, which is mg.

The force of tension in the string on the right side of the pulley is equal to the weight of mass 2, which is also mg.

Now, since the masses are identical, the forces of tension are equal in magnitude but opposite in direction. Therefore, the net force acting on the system is zero, resulting in a balanced system.

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If x and t represent distance and time, respectively, then the C in x=1/2 Ct³ must have the dimensions L⁻¹T⁻³.

Dimensions are different categories of measurements. For instance, both length and time are dimensions. The unit that we select to quantify is a dimension. For instance, the units for the dimensions of length are meters and feet, whereas the units for the dimensions of time are seconds and jiffys1.

When comparing two numbers, such as a model forecast and a measurement, it's critical that they both have the same dimension and be stated in the same units.

According to tradition, we can write a quantity, X, in square brackets, [X], to represent its dimension. For instance, [X]=I would indicate that the quantity X has the electric current dimension, which corresponds to the dimension I.

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At each end of a long bone is an expanded portion called an "epiphysis," which articulates (or forms a joint) with another bone.

An epiphysis is a rounded or flat surface located at the ends of a long bone and is covered by a layer of smooth articular cartilage. This cartilage provides a low-friction surface that allows for smooth and pain-free movement between the bones at the joint. The epiphysis is separated from the main shaft of the bone (the diaphysis) by the epiphyseal plate, a layer of hyaline cartilage that allows for growth in children and adolescents. The epiphysis and diaphysis are joined together by a strong and flexible tissue called the epiphyseal line, which eventually fuses in adulthood and forms a solid connection between the two parts of the bone. The epiphysis and diaphysis work together to provide strength, stability, and support to the bones of the skeleton, and the joints formed by the articulation of the epiphysis and another bone play a crucial role in enabling movements such as walking, jumping, and twisting.

In short, an epiphysis is an expanded portion at the end of a long bone that articulates with another bone to form a joint, and it plays an important role in the movement and stability of the skeleton.

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The energy of the photons in the light is greater than the work function of the photocell (2.38 eV), the photocell will function with this wavelength of light, and the kinetic energy of the photoelectrons released from the photocell is 0.98 eV.

To determine if the photocell will function with the given wavelength of light, we need to compare the energy of the photons in the light to the work function of the photocell. The energy of a photon will be given by:

E = hc/λ

where h is Planck's constant, c is the speed of light, and λ is the wavelength.

Substituting the values given, we get:

E = (6.626 x 10\(10^{-34}\) J s) × (3.00 x 10⁸ m/s) / (633 x\(10^{-9}\) m)

E = 3.14 x \(10^{-19}\) J

Converting this energy to electron volts (eV), we get:

E = 3.14 x \(10^{-19}\) J / 1.60 x \(10^{-19}\) J/eV

E = 1.96 eV

Since the energy of the photons in the light is greater than the work function of the photocell (2.38 eV), the photocell will function with this wavelength of light.

The kinetic energy of the photoelectrons released from the photocell is given by:

K.E. = E - W

where E is the energy of the photon and W is the work function of the photocell.

Substituting the values given, we get:

K.E. = (3.14 x \(10^{-19}\) J) / (1.60 x \(10^{-19}\) J/eV) - 2.38 eV

K.E. = 0.98 eV

Therefore, the kinetic energy of the photoelectrons released from the photocell is 0.98 eV.

If the energy of the photons in the light had been less than the work function of the photocell, then the photocell would not have functioned. In that case, the threshold frequency (ν) would be given by:

ν = W/h

where h is Planck's constant and W is the work function of the photocell. Once the threshold frequency is known, we can use the formula E = hν to find the corresponding wavelength.

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The electric field strength is positive, which means that the direction of the electric field is radially outward from the charge.

The electric field strength at a distance r from a point charge q is given by:

\(E = k*q/r^2\)

where k is Coulomb's constant, which has a value of approximately\(9.0 x 10^9 N m^2/C^2.\)

In this case, we have a point charge \(q = 1 nC = 1 x 10^-9 C\)  located at a distance r = 2.5 m.

Substituting these values into the equation above, we get:

\(E = (9.0 x 10^9 N m^2/C^2) * (1 x 10^-9 C) / (2.5 m)^2\)

\(E = 1.44 x 10^-6 N/C\)

The electric field strength is positive, which means that the direction of the electric field is radially outward from the charge.

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Answer:

B. 45 g because it is the given answer of the division that is given to the equation