springs can stretch; so can different materials, including

According to the given statement Time taken by space shuttle = 933.33 m/s.

Displacement is a vector quantity with both magnitude and direction, while distance is a scalar quantity, or a value. Generally speaking, the directed distance is yet another name for the vector that represents the difference between two locations (the relative position).

Distance cover by space shuttle = 700,000 meter

Speed of space shuttle = 750 m/s

Time taken by space shuttle

Time taken = Distance / Speed

Time taken by space shuttle = Distance cover by space shuttle / Speed of space shuttle

Time taken by space shuttle = 700,000 / 750

Time taken by space shuttle = 933.33 m/s

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Answer:

4000 J

Explanation:

x * .125  = 500

x = work input   =   500 / .125 = 4000 J

The electric field strength at point (x,y) = (20 mm, 0cm) is 16.76 N/C and the electric field strength at point (x,y) = (0cm, 20 mm) is 16.80 N/C.

The magnitude of the point charge is ± 5. 0 nC and distance between the point charges is 3. 0 mm. Let's first find the electric dipole moment;

p = qd= 5.0 nC × 3.0 mm = 15.0 × 10^−9 C m

The electric field strength at point (20 mm,0cm) is given by;

E= kp/r²

Electric field strength, E1 at point P1 (20 mm, 0 cm) is given by;

The distance of P1 from the charges is;

r1 = √(x₁ - x₂)² + (y₁ - y₂)²= √(20² + 1.5²) = 20.03 mm = 20.03 × 10⁻³ m

Using Coulomb's law;

F = kq₁q₂/r² ; where k = 9 × 10^9 Nm²/C²;

We can find the electric field strength at P1 using the formula:

E1= kp/r1² = (9 × 10^9 Nm²/C²) (15.0 × 10^−9 C m)/(20.03 × 10⁻³ m)²= (9 × 10^9 × 15 × 10^−9)/(20.03 × 10⁻³)²= 16.76 N/C

Now, let's find the electric field strength at point (0cm,20 mm). The electric field strength, E2 at point P2 (0cm, 20 mm) is given by;

The distance of P2 from the charges is;

r2 = √(x₁ - x₂)² + (y₁ - y₂)²= √(20² + 3) = 20.01 mm= 20.01 × 10⁻³ m

Using Coulomb's law;

F = kq₁q₂/r² ; where k = 9 × 10^9 Nm²/C²;

We can find the electric field strength at P2 using the formula;

E2= kp/r2² = (9 × 10^9 Nm²/C²) (15.0 × 10^−9 C m)/(20.01 × 10⁻³ m)²= (9 × 10^9 × 15 × 10^−9)/(20.01 × 10⁻³)²= 16.80 N/C

Therefore, the electric field strength at point (x,y) = (20 mm, 0cm) is E1 = 16.76 N/C. The electric field strength at point (x,y) = (0cm, 20 mm) is E2 = 16.80 N/C.

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Answer:

wavelength is λ=fv=440340=0. 77m.

Answer:

C

Explanation:

a=change in velocity/ change in time

a=( 60m/s)-(20m/s)/10s

a=(40m/s)/10s

a= 4m/s

If a moped is going 20 m/s, and speeds up to 60 m/s in 10s, the acceleration will be \(4m/s^2\). So, the correct option is C.

Acceleration is defined as the rate of change of velocity of an object with respect to time. Acceleration is a vector quantity which has both magnitude and direction. When an object moves in a circular path with uniform speed, it will be still accelerating as the direction of its velocity is changing.

It is given by the formula formula:

\(\overline{a} = \frac{v - v_0}{t} = \frac{\Delta v}{\Delta t}\)

where,

\(\overline{a}\) = average acceleration

v = final velocity

\(v_0\) = starting velocity

t = elapsed time

Given , Initial velocity= 20m/s

Final velocity= 60m/s

Time elapsed= 10s

So, acceleration= (60-20)/10= 40/10= \(4m/s^2\)

Thus, if a moped is going 20 m/s, and speeds up to 60 m/s in 10s, the acceleration will be \(4m/s^2\). So, the correct option is C.

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We can verify the Newton's second law of motion mathematically by using the momentum impulse relation.

The rate of change of a body's momentum is directly proportional to the applied force and occurs in the direction in which the force operates, according to Newton's Second Law of Motion. where F is the applied force, M is the body's mass, and A is the resulting acceleration.

One way to state Newton's second law of motion is as follows:

Force is inversely correlated with change in momentum and time.

Now, F is directly proportional to mv-mu t or m(v-u) t [where (v-u) represents the acceleration, or change in velocity].

As a result, we discover that F is inversely proportional to m.

By using a constant k, this relationship F is directly proportional to ma can be transformed into an equation.

Thus, F=kma (where k is constant)

The preceding equation is now F=ma or Force= Mass*Acceleration because the value of k in SI units is 1.

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When the mirror is moved so that the tree is between the focus point F and the mirror, the image appears shorter and on the same side of the mirror.This happens because of the phenomenon known as Reflection of Light. The mirror reflects light in such a way that it appears as if the light is coming from behind the mirror.

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Sound travels at a known speed, the time interval between the flash and the thunderclap can be used to calculate the approximate distance to the lightning strike.Light travels at a speed of approximately 299,792 kilometers per second in a vacuum, while sound travels at a much slower speed of around 343 meters per second in dry air at 20 degrees Celsius.

The scientist observed the lightning flash several seconds before hearing the sound of the thunderclap because light travels much faster than sound. Light travels at a speed of approximately 299,792 kilometers per second in a vacuum, while sound travels at a much slower speed of around 343 meters per second in dry air at 20 degrees Celsius.Given that the scientist was several kilometers away from the lightning flash, the light from the flash reached the scientist's location almost instantaneously. In contrast, the sound waves generated by the thunderclap took time to travel through the air over the distance between the scientist and the lightning. Consequently, it took several seconds for the sound to reach the scientist's ears.The time difference between seeing the lightning flash and hearing the thunder allows us to estimate the distance of the lightning strike.

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They have a limited supply in nature, therefore if they are used excessively, they will become exhausted.

Today, we recognise that using fossil fuels has a negative impact on the environment. Fossil fuels produce and utilise local pollutants, and their continued use permanently alters the temperature of our entire world.

Wastes from combustion sources are those that result from carbon pollution (i.e., coal, oil, natural gas). Included in this are all ash and particles taken out of the flue gas.

The fossile fuel is limited in nature. So, it should not waste energy from fossil fuels.

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Answer:

R and I will also change, but V will remain constant.

Explanation:

The Binding Energy Per Nucleon for ²³⁸U₉₂ is 1.11 MeV / nucleon (rounded to three significant figures).

The Binding Energy Per Nucleon can be determined using the formula: Binding Energy Per Nucleon = Binding Energy/Number of Nucleons.

Binding energy of a nucleus is defined as the amount of energy required to break up a nucleus into its individual nucleons. It is calculated as the difference between the mass of the nucleus and the mass of its individual nucleons.

Binding Energy Per Nucleon of a nucleus is an important physical quantity as it determines the stability of the nucleus and its ability to undergo nuclear reactions.

Let's calculate the Binding Energy Per Nucleon for ²³⁸U₉₂: Nuclear mass of ²³⁸U₉₂ = 238.050788 u

Binding energy of ²³⁸U₉₂ = 4.25 x 10⁻¹¹ J / nucleon (given) = 4.25 x 10⁻¹¹ J / 1.602 x 10⁻¹³ MeV (1 MeV = 1.602 x 10⁻¹³ J) = 264.96 MeV

Total number of nucleons in ²³⁸U₉₂ = 238

Binding Energy Per Nucleon = Binding Energy / Number of Nucleons = 264.96 MeV / 238= 1.11 MeV / nucleon

Therefore, the Binding Energy Per Nucleon for ²³⁸U₉₂ is 1.11 MeV / nucleon (rounded to three significant figures).

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Answer:

the second law states that the force F is the product of an object's mass and its acceleration a: F = m * a. For an external applied force, the change in velocity depends on the mass of the object.

Answer:

The average speed of an object is the total distance traveled by the object divided by the elapsed time to cover that distance.

Answer:

The total distance traveled by the object divided by the elapsed time to cover that distance is known as the average speed.

Answer:

1. false 2.true 3. true

Explanation:

there was more scientific method and more ways to solve

the hypothesis show the experiment design  

Answer:

neutrons have a negative charge is incorrect

Explanation:

neutrons are neutral

Answer:

Explanation:

Neutrons and protons are found in the nucleus of an atom. Unlike protons, which have a positive charge, or electrons, which have a negative charge, neutrons have zero charge which means they are neutral particles.

The coefficient of static friction in this case is 0.26.

To determine the coefficient of static friction, we need to use the following formula

μs = (mv²) / (rmg)

where;

We still need to determine the mass of the car. However, we can use another formula to find the centripetal force acting on the car:

Fc = (mv²) / r

Substituting the given values:

v = 11.3 m/s

r = 3 m

We can rearrange this equation to solve for the mass:

m = Fc r / v²

We don't know the value of Fc, but we can use the fact that the car begins to skid when the centripetal force is equal to the maximum static friction force, which we can express as μsN.

Since the car is on a level surface, the normal force N is equal to the weight of the car:

N = mg

Combining these equations, we get:

μsmg = Fc

Substituting Fc into the equation for the mass:

m = μsmg r / v²

Now we can substitute all the known values:

m = μs (9.8 m/s²) (3 m) / (11.3 m/s)²

Simplifying this expression:

m = 0.78 μs

We still need to find the value of μs. To do this, we can substitute the expression we found for m into the original equation for μs:

μs = (mv²) / (rmg)

μs = (0.78 μs) (11.3 m/s)² / (3 m) (9.8 m/s²)

Simplifying this expression:

μs = 0.26

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The complete question is below:

on a wet day, the car described in the example begins to skid on the curve when its speed reaches 11.3 m/s. what is the coefficient of static friction in this case? hint the radius of the curve is 3 m.

The change in entropy, when 15.0 g of water at 100°C is turned into steam at 100°C, can be calculated using the formula ΔS = Q/T, where Q is the heat added to the system and T is the temperature in Kelvin.

The change in entropy of a system can be calculated using the formula ΔS = Q/T, where ΔS is the change in entropy, Q is the heat added to the system, and T is the temperature in Kelvin. In this case, we can calculate the change in entropy when 15.0 g of water at 100°C are turned into steam at 100°C using the latent heat of vaporization of water, which is 22.6 × 10⁵ J/kg. First, we need to calculate the amount of heat added to the system. The heat required to vaporize the 15.0 g of water is given by Q = m × L, where m is the mass of water and L is the latent heat of the vaporization of water. Substituting the given values, we get Q = 15.0 g × 22.6 × 10⁵ J/kg = 3.39 × 10⁴ J. Next, we need to calculate the temperature in Kelvin. The temperature remains constant at 100°C during the phase change, so we can simply add 273.15 to get the temperature in Kelvin. Therefore, T = 100°C + 273.15 = 373.15 K. Finally, we can use the formula ΔS = Q/T to calculate the change in entropy. Substituting the calculated values, we get ΔS = 3.39 × 10⁴ J / 373.15 K = 90.8 J/K. Therefore, the change in entropy when 15.0 g of water at 100°C is turned into steam at 100°C is 90.8 J/K.

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Explanation:

The energy of a wave is given by :

\(E=\dfrac{hc}{\lambda}\)

Where

h is Planck's constant

c is the speed of light

\(\lambda\) is wavelength

Energy is inversely proportional to wavelength. Also, the relation between frequency and wavelength is inverse.

If the frequency is high, the wavelength will be shorter.

Hence, the correct options are :

Higher frequencies have shorter wavelengths.

Shorter wavelengths have lower energy.

Lower frequencies have lower energy.

Well to be honest i probably could answer this if I had the thing to look at to solve it but if not i saw try lucky C. although that doesn't seem like the answer to be honest, either A. or B. seem like reasonable answers to Since D. Does not make sense for this specific question stated, inches for Celsius? Seems a bit off. I say maybe 1. or b. But if your daring choose D. It is really up to you to decide, After all I really do not have anything to base this off of.

Answer:

.

Explanation:

Sound waves are caused by vibration ripples in water are caused by disturbance in the molecules

Sound waves are longitudinal (the particles move in the same direction as the wave) as opposed to transversal waves (for example, in a sea wave, the water particles move up and down to form the wave). ... Water being incompressible is one of the reasons why sound waves move much faster in water than ripples.

Mark me brainliest please

Answer:

\(\boxed {Density = 4800 kg/m^{3}}\)

Explanation:

Formula :

\(\boxed {Density = \frac{Mass (kg)}{Volume (m^{3})}}\)

Convert volume into standard unit :

⇒ 250000 cm³ × 10⁻⁶

⇒ 0.25 × 10⁶ × 10⁻⁶

⇒ 0.25 m³

Solve for density :

⇒ Density = 1200 kg / 0.25 m³

⇒ Density = 1200 × 4 kg/m³

⇒ Density = 4800 kg/m³

When thinking about ecosystems, the statement "energy cycles and material flows" is useful to know.

Ecosystems are composed of living organisms, such as plants and animals, as well as the non-living components of the environment, such as air, water, and minerals.

Energy and materials are essential for the survival of these organisms, and their cycling within the ecosystem is critical for maintaining the balance and health of the ecosystem.

Energy is captured by plants through photosynthesis, and this energy is then passed through the food chain as animals consume other organisms.

Material, such as nutrients, is also cycled through the ecosystem. Nutrients are absorbed by plants, and as these plants are consumed, the nutrients are passed along to other organisms.

Decomposers break down dead organisms and recycle their nutrients back into the ecosystem. These cycles of energy and materials ensure that the ecosystem remains healthy and balanced, and disruptions to these cycles can have serious consequences.

For example, if a species of plant is removed from an ecosystem, the animals that rely on that plant for food will suffer, and the ecosystem may become imbalanced.

Similarly, if pollutants are introduced into the ecosystem, they can disrupt the natural cycles of energy and materials, causing harm to the organisms that rely on these cycles for survival.

In conclusion, understanding the cycling of energy and materials within an ecosystem is essential for maintaining the balance and health of the ecosystem.

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Energy flows are the movement of energy through an ecosystem, while material flows are the movement of matter, such as carbon and nitrogen, through an ecosystem.

These two processes are interconnected and essential for the functioning of ecosystems. `Energy cycles are responsible for the transfer of energy from one organism to another within an ecosystem. This is achieved through processes such as photosynthesis, respiration, and decomposition. Material flows, on the other hand, involve the movement of nutrients and other essential elements through an ecosystem. This includes the cycling of water, carbon, and nitrogen, which are necessary for the growth and survival of living organisms.In conclusion, understanding energy cycles and material flows is critical to understanding the functioning of ecosystems. These processes are essential for the transfer of energy and nutrients through an ecosystem, and they play a crucial role in maintaining the delicate balance of life on Earth.

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Answer:

velocity and mass

Explanation:

In French, there are four levels (A1, A2, B1, and B2). A1 — After 100 to 150 hours of French study, anyone can take this test. A1 Junior – This version of A1 is designed for kids between the ages of 12 and 14.

Frankish was not the only source of Germanic words in French, even though it accounts for about 10% of words in Modern French. Old Norse and Old English made contributions through Norman French, as did Gothic languages like Burgundian.

German and French are distinct enough from one another that you won't confuse the two, but not so distinct that you can't transfer your knowledge between the two. German is a Germanic language like English, whereas French is a Romance language that is descended from Latin. As a result, learning them isn't all that similar.

Example

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The statement "The excitation of the mercury vapor glows the phosphorus coating inside the lamp of a fluorescent lighting." is true.

In a fluorescent lamp, the electric current excites the mercury inside the lamp which is in vapor form. This process generates the ultraviolet light wave of very short wavelength, which causes the glow of phosphorus coating inside the lamp. Thus a fluorescent lamp converts the very little electrical energy into useful and sufficient light energy.

--The given question is incomplete, the complete question is "Which of the following statement is true about fluorescent lighting? a) Phosphorus coating inside the lamp of a fluorescent lighting glows by the excitation of the mercury vapor. b) The efficiency of fluorescent lighting is much low."

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The measurement of body temperature is an example of a variable that uses option A, interval scale.

A scale with an interval has order and a meaningful difference between two values. Temperature (Fahrenheit), temperature (Celsius), pH, SAT score (200-800), and credit score are a few examples of interval variables (300-850).

One variable that uses interval scale is the measurement of body temperature.

Only ratio scales have a genuine zero, even though interval and ratio data can both be categorized, sorted, and spaced equally apart between consecutive values. As 0 is not the lowest attainable temperature, temperature in Celsius or Fahrenheit, for instance, is measured on an interval scale.

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Experiment: Investigating the Effect of Light Intensity on Photosynthesis Rate in Plants

Hypothesis:

The hypothesis for this experiment is that increasing light intensity will result in an increase in the rate of photosynthesis in plants.

Procedure:

Set up a controlled environment with potted plants of the same species and similar size.

Divide the plants into different groups, each exposed to a different light intensity. This can be achieved by adjusting the distance between the light source and the plants or by using light filters to modify the intensity.

Use a light sensor to measure the light intensity in each group. Ensure that the sensor is calibrated and positioned at the same height as the plants.

Begin the experiment by exposing the plants to their respective light intensities for a specified period of time.

During the experiment, record the light intensity readings from the sensor at regular intervals.

Measure the rate of photosynthesis by monitoring the production of oxygen or the consumption of carbon dioxide. This can be done by using gas sensors or by analyzing the changes in gas concentrations in a closed system.

Repeat the experiment multiple times to ensure accuracy and reliability of the results.

Analyze the data collected, taking into consideration the light intensity and photosynthesis rate for each group.

Predicted Results:

Based on the hypothesis, it is expected that as the light intensity increases, the rate of photosynthesis will also increase. This relationship is due to the fact that light is a key factor in the process of photosynthesis, providing the energy needed for the conversion of carbon dioxide and water into glucose and oxygen. Therefore, it is predicted that the group exposed to the highest light intensity will exhibit the highest rate of photosynthesis, while the group with the lowest light intensity will have the lowest rate.

The experiment will provide valuable insights into the relationship between light intensity and the rate of photosynthesis in plants. If the hypothesis is supported by the data, it would suggest that increasing light intensity can enhance the photosynthetic activity of plants. This information could be useful in optimizing plant growth in various settings, such as agricultural practices or indoor gardening. However, if the results contradict the hypothesis, further investigation would be necessary to identify other factors that may be influencing photosynthesis.

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Liquid density affects the buoyance of the object placed in it, since the ability of the object to float depends on the density of the liquid, the denser the liquid the more likely the object will float and vice versa.

Archimedes’ principle states that a body immersed in a fluid experiences an upward force which is equal to the weight of the fluid displaced.

The upward force experienced by an object in a liquid is known as buoyant force.

For Example;

An object which is denser than the liquid \((\rho_o > \rho_l)\) has a positive apparent weight and can sink in the liquid.

An object which is less dense than the liquid \((\rho_o < \rho_l)\) has a negative apparent weight and rises in the liquid.

When the weight of the object is equal to the upthrust \((\rho_o = \rho_l)\), the apparent weight will be zero and the object will float in the liquid. This is known as principle of floatation.

Thus, we can conclude that liquid density affects the buoyance of the object placed in it, since the ability of the object to float depends on the density of the liquid, the denser the liquid the more likely the object will float and vice versa.

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Answer:

Liquid density affects the buoyance of the object placed in it, since the ability of the object to float depends on the density of the liquid, the denser the liquid the more likely the object will float and vice versa.

Explanation:

Answer:

Answer is neutrons.

Explanation:

The nucleus contains two types of subatomic particles, protons and neutrons.the protons have a positive electrical charge and the neutrons have no electrical charge.

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Answer:

a) humidity

Explanation:

asia is known for miserable humid weather

Answer:

The correct answer is Geological processes.

Explanation:

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