a log splitter puts out 1 100W of power for every 1500 W put into it. the efficiency of the machine is what

Answer:

3 m/s

Explanation:

have a good day

The controversial psychological study of prison life that took place in 1971 is known as the Stanford Prison Experiment. It was conducted by psychologist Philip Zimbardo and his team at Stanford University to examine how individuals adapt to the roles of prisoners and prison guards in a simulated prison environment.

The study involved 24 male college students who were randomly assigned to either the role of prisoner or guard. The experiment quickly spiraled out of control as the guards began to abuse their power, and the prisoners became increasingly submissive and depressed. The guards used psychological tactics such as humiliation, sleep deprivation, and even physical punishment to maintain their authority over the prisoners.

The study was meant to last for two weeks, but it was terminated after just six days due to the extreme and abusive behavior of the guards. The Stanford Prison Experiment remains controversial due to ethical concerns about the mistreatment of the participants and the potential long-term psychological effects on those who took part.

The study has had a significant impact on the field of psychology and has raised important questions about the ethics of conducting psychological research. It has also shed light on the dangers of group dynamics and how individuals can be easily influenced by social roles and situations.

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The velocity of the boat relative to the water can be found using trigonometry. The vector representation of the velocity of boat is

9.86 i + 6.38 j miles per hour where i and j are the unit vectors in the horizontal and vertical directions, respectively.

The speed of the boat relative to the water is given as 15 miles per hour, and the angle of 25 degrees is the angle between the boat's velocity and the direction of the river's flow.

The horizontal component of the boat's velocity relative to the water is:

15 ×cos(25) = 13.86 miles per hour

The vertical component of the boat's velocity relative to the water is:

15 × sin(25) = 6.38 miles per hour

The velocity of the river can be considered as a vector with a magnitude of 4 miles per hour and a direction opposite to the boat's motion.

The vector representing the boat's velocity relative to the ground is the vector sum of the boat's velocity relative to the water and the velocity of the river.

The horizontal component of the boat's velocity relative to the ground is:

13.86 - 4 = 9.86 miles per hour

The vertical component of the boat's velocity relative to the ground is:

6.38 + 0 = 6.38 miles per hour

Thus, the vector representing the boat's velocity relative to the ground can be expressed as:

9.86 i + 6.38 j miles per hour

where i and j are the unit vectors in the horizontal and vertical directions, respectively.

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The maximum force that can be exerted horizontally on the crate without moving it is 499.8 N, considering the static friction between the crate and the wood floor. Once the crate starts to slip, the magnitude of its acceleration will be 2.94 m/s^2 due to the kinetic friction between the crate and the wood floor.

(a) To determine the maximum force that can be exerted horizontally on the crate without moving it, we need to consider the static friction between the crate and the wood floor. The maximum force can be calculated using the formula:

F_max = μ_s * N,

where μ_s is the coefficient of static friction and N is the normal force acting on the crate.

The normal force N is equal to the weight of the crate, which can be calculated as:

N = m * g,

where m is the mass of the crate and g is the acceleration due to gravity.

Substituting the given values, we have:

N = 102 kg * 9.8 m/s^2 = 999.6 N.

Therefore, the maximum force that can be exerted horizontally on the crate without moving it is:

F_max = 0.5 * 999.6 N = 499.8 N.

(b) Once the crate starts to slip, the force of friction changes from static friction to kinetic friction. The magnitude of the crate's acceleration can be calculated using the formula:

a = (μ_k * g),

where μ_k is the coefficient of kinetic friction.

Substituting the given value, we have:

a = 0.3 * 9.8 m/s^2 = 2.94 m/s^2.

Therefore, if the applied force continues once the crate starts to slip, the magnitude of its acceleration will be 2.94 m/s^2.

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Answer:

in a plane flying above Earth

Explanation:

Gravity is the force that draws  objects toward center of the earth. If you throw an object up on the earth's surface, you will notice that it will fall back to the ground due to the earth's gravitational pull on the object.

However, the further one goes from the earth's surface, the lesser the gravitational pull. Therefore the cat will experience less gravitational pull in an airplane flying at a higher altitude.

Answer:

5 N

Explanation:

Given that,

A large bar magnet of mass 0.4 kg exerts a 5 N force on a small bar magnet (mass of 0.1 kg) located 20 cm away.

We need to find the force exerted by the small bar magnet on the large one.

We know that, every action has an equal and opposite reaction. Both action and reaction occur in pairs. The force acting on one object to another is same and in opposite direction on the other object.

Hence, the force exerted by the small bar magnet on the large one is also 5 N.

Answer:

I have attached a picture of me explaining the answers in written format. Hope this helps, thank you !!

Explanation:

The amount of CD is 35 g, and the amount of AC is 40 g.

Explanation:

AB + CD \rightarrow AC + BDAB+CD→AC+BD

The law of conservation of mass states that in any chemical reaction, the total mass of the reactants must be equal to the total mass of the products.

In this reaction, we know the mass of one reactant (AB, 15 g) and the mass of one product (BD, 10 g). In order to have the same total mass on the left side and on the right side of the equation, the mass of AC must be 5 g more than the mass of CD. We see that the only choice that satisfies this condition is:

The amount of CD is 35 g, and the amount of AC is 40 g.

In fact, if we assume these masses are correct, we have:

- on the reactant side: m(AB)+m(CD)= 15g + 35g = 50g

- on the product side: m(AC)+m(BD)= 40g + 10g = 50g

so, we have the same mass on both sides of the equation, and the law of conservation of mass is satisfied.

Answer:

B is  the answer on edge

Explanation:

B: The amount of CD is 35 g, and the amount of AC is 40 g.

Answer:

2as = v² - u²

v = √(2as + u²)

v = √(2 x 4 x 400 + 13²)

v = 58 m/s

Explanation:

Answer:

58

Explanation:

correct

By using one as a frame of reference, we will see that 6 seconds elapse before the two cars meet.

The correct option is B.

A frame of reference is a clearly defined coordinate system that is used to represent a body's motion or state of rest. Reference frames can be divided into two categories: inertial or non-accelerating frames and non-inertial or accelerating frames.

This moves at 30 m/s, then we will see that car A does not move, while car B moves with a speed of:

S = 20m/s + 30m/s = 50m/s

The two cars are moving in opposing directions, therefore the velocities are summed (So car A sees that car B comes faster than it actually does).

We just need to determine how long it will take automobile B to drive 300 metres at 50 m/s now that we are in this frame of reference.

Distance/speed = time

distance = 300m

speed = 50m/s.

(300m)/( 50 m/s) = 6s

This means that 6 seconds elapse before the two cars meet.

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The complete question is -

Two cars, A and B start out 300 meters apart. Car A travels due east toward car B at 30 meters per second. Car B travels due west toward car B at 20 meters per second. How long does it take before the two cars meet?

A- 15s

B- 6s

C- 10s

D- 5s

Answer:

I think the answer is C :)

Explanation:

Answer:

The correct answer option is C

Explanation:

In a balanced chemical reaction mass of the reactant are always equal to mass of the products. Also known as Law of Conservation of Mass  which states that " mass can nor be created nor be destroyed in a chemical reaction."

So, the mass of the reactant will be equal to the mass of products.That is 120 grams.

Hence, the correct answer option(C).

If the mass of the products measured 120 grams, then the mass of the reactants would be the same as 120 grams, as per the law of conservation of mass which state that "mass is neither created nor destroyed in a chemical reaction".

Therefore the correct answer is option C,120 grams.

A chemical reaction is a process in which one or more substances, also known as reactants are converted to one or more different substances, known as products.

According to the law of conservation of mass, which states that "mass is neither generated nor destroyed in a chemical reaction,"

If the mass of the products was 120 grams, then the mass of the reactants would also be 120 grams.

Thus, the correct answer is option C.

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Answer:
1.)the surface of the table is set into vibration
2.)the initial vibration was larger
3.)The entire table vibrates

Explanation:hope this helps :3 have a good day xlXCherryColaXlx..(pls mark me brainliest)

Answer: Different types of fuels have varying compositions and release different amounts of pollutants when burned. Here are some common types of fuels and the pollutants associated with them:

Fossil Fuels:

a. Coal: When burned, coal releases pollutants such as carbon dioxide (CO2), sulfur dioxide (SO2), nitrogen oxides (NOx), and particulate matter (PM).

b. Petroleum (Oil): Burning petroleum-based fuels like gasoline and diesel produces CO2, SO2, NOx, volatile organic compounds (VOCs), and PM.

Natural Gas:

Natural gas, which primarily consists of methane (CH4), is considered a cleaner-burning fuel compared to coal and oil. It releases lower amounts of CO2, SO2, NOx, VOCs, and PM.

Biofuels:

Biofuels are derived from renewable sources such as plants and agricultural waste. Their environmental impact depends on the specific type of biofuel. For example:

a. Ethanol: Produced from crops like corn or sugarcane, burning ethanol emits CO2 but generally releases fewer pollutants than fossil fuels.

b. Biodiesel: Made from vegetable oils or animal fats, biodiesel produces lower levels of CO2, SO2, and PM compared to petroleum-based diesel.

Renewable Energy Sources:

Renewable energy sources like solar, wind, and hydropower do not produce pollutants during electricity generation. However, the manufacturing, installation, and maintenance of renewable energy infrastructure can have environmental impacts.

It's important to note that the environmental impact of a fuel also depends on factors such as combustion technology, fuel efficiency, and emission control measures. Additionally, advancements in clean technologies and the use of emission controls can help mitigate the environmental impact of burning fuels.

The transportation technology constructed and planned for exporting oil and natural gas from Central Asia is pipelines.

The region is rich in oil and natural gas reserves, and its energy resources are in high demand by countries around the world. Several pipelines have already been constructed, including the Caspian Pipeline Consortium pipeline, which transports crude oil from the Caspian Sea to the Russian Black Sea port of Novorossiysk, and the Central Asia-China pipeline, which transports natural gas from Turkmenistan to China. Additionally, there are plans for several other pipelines, such as the Turkmenistan-Afghanistan-Pakistan-India (TAPI) pipeline and the Trans-Caspian Gas Pipeline, which would further expand the transportation of energy resources from Central Asia to other parts of the world.

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Scientists determine locations for drilling for natural gas by analysing the reports of seismic surveys. Many of the natural gas drill sites are located on land and some are also located on ocean beds.

Methane makes up the majority of natural gas, which is a mixture of gaseous hydrocarbons that also contains minor amounts of other higher alkanes. Low concentrations of trace gases including helium, nitrogen, hydrogen sulphide, and carbon dioxide are also typically present.

Seismic surveys are used for exploring areas rich in petroleum, natural gas and mineral deposits. Acoustic waves are used in seismic surveys to generate images of the ground by analysing their vibrations. While certain seismic waves can travel deep under the earth through solid rock and fluids, others can simply move along the surface of the planet like water ripples.

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The rock that shows evidence of the longest cooling process is typically granite. Granite is a type of intrusive igneous rock, which means that it formed from magma that cooled slowly beneath the Earth's surface.

Dolerite and basalt are examples of extrusive igneous rocks, which formed from lava that cooled quickly on the Earth's surface. The rapid cooling process did not allow for the formation of large mineral crystals, resulting in a finer-grained texture.

Igneous rocks are rocks that form from the solidification of molten rock material, either below the Earth's surface or on the Earth's surface. The solidification process can occur slowly over a long period of time or quickly over a short period of time, depending on the conditions under which the molten rock solidifies.

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Answer:

  85.2 N

Explanation:

You want to know your weight if the Earth were 3 times as massive and had 5 times the present radius. Your weight is 710 N.

Your weight is proportional to the mass of the Earth and the square of the radius between your mass and the center of the Earth. The revised dimensions of the earth would multiply your weight by ...

  W = k(M/r²) = 710 N

  W' = k((3M)/(5r)²) = k(M/r²)(3/25) = (710 N)(3/25) = 82.5 N

Your weight would be 82.5 N.

car moved 80 km to the South. What is its displacement? 80 km South -------------------------------------

The brass instrument that has a movable slide is the trombone. The slide allows the player to vary the length of the tubing, thus changing the pitch of the notes.

By moving the slide in and out, the player can play a wide range of notes and create smooth glissandos between notes. Unlike other brass instruments such as the trumpet or French horn, which use valves to change the length of the tubing, the trombone uses a slide. The slide is made up of two parallel tubes, which are connected by a U-shaped bend, allowing the player to move the slide in and out to adjust the length of the tubing.

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Answer:

exothermic reaction

Explanation:

Exothermic reactions are reactions or processes that release energy, usually in the form of heat or light. In an exothermic reaction, energy is released because the total energy of the products is less than the total energy of the reactants.

when running a line, in a right-triangle, from the 90° angle perpendicular to its opposite side, we will end up with three similar triangles, one Small, one Medium and a containing Large one.  Check the picture below.

\(\cfrac{x}{11}~~ = ~~\cfrac{4}{x}\implies x^2=44\implies x=\sqrt{44}\implies x=2\sqrt{11}\)

Answer:

acceleration is 1.6 m/s^2

Explanation:

This is a question involving Kinematics so we can use one of the kinematic equations.

Given info: Vi= 2.6 m/s. Vf= 15.4 m/s. T= 8s

We need to solve for acceleration

The best equation to use is (Vf = Vi + at) as it contains all the info we need to solve for acceleration.

Now substitute the values given into the equation.

Vf = Vi + at >> 15.4 = 2.6 + a8

Now solve for a by rearranging the equation.

15.4 -2.6= 8a >> 12.8=8a >> 12.8/8= 8a/8 >> 1.6 =a

NOTES:

Acceleration is the rate of increase of velocity

Vf is final velocity or velocity after acceleration/de-accaeleration occurs

Vi is intial velocity or velocity before acceleration or de-accaeleration occurs

Time is time it took for a certain motion to occur.

Answer:

D

Explanation: That is the lowest point in a cycle

Answer:

I just had a question the same as this.

The answer is: Points (B) & (F)!

Hope it helps! :D

Our cultural background, personal experiences, and societal norms heavily influence our preferences for art. This argument can be applied to all forms of art, including music, movies, and food. Understanding and respecting the differences in cultural expressions can help us appreciate the diversity and richness of the world's art forms.

When it comes to art, people often have their own preferences and tastes. These preferences can be influenced by a variety of factors, including personal experiences, upbringing, societal norms, and cultural background. In this sense, one's own culture can greatly affect their opinion of the art of other cultures.
Firstly, one's cultural background shapes their perception of art. For example, individuals from Western cultures tend to appreciate realistic paintings and sculptures, while those from Eastern cultures prefer abstract art. This can be attributed to differences in cultural values and aesthetics.
Secondly, personal experiences also play a role in shaping one's preferences. For instance, if someone grew up listening to a certain type of music or watching a particular genre of movies, they are more likely to develop a liking for them.
Identifying one's cultural biases and preferences is important in interpreting and judging art from other cultures. When we interpret art, we analyze it based on our own experiences, values, and beliefs. However, it is crucial to recognize that different cultures have unique perspectives and ways of expressing themselves through art.
Judging art from other cultures should involve an open-minded approach that acknowledges cultural differences and appreciates their unique artistic expressions. One should avoid using their own cultural standards to evaluate the art of other cultures. Instead, we should strive to learn about different cultures and their art forms to develop a deeper understanding and appreciation for them.
In conclusion, our cultural background, personal experiences, and societal norms heavily influence our preferences for art. This argument can be applied to all forms of art, including music, movies, and food. Understanding and respecting the differences in cultural expressions can help us appreciate the diversity and richness of the world's art forms.

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Answer:

3rd choice

Explanation:

heat is transfered causing it to melt

Answer:

C

Explanation:

The total change in entropy of the water and the heat source is 50 J/K.

To solve this problem, we need to calculate the change in entropy for the water and the heat source separately, and then determine the total change in entropy.

Part A: The change in entropy of the water (ΔS_water) can be calculated using the equation:

ΔS_water = Q / T

where Q is the heat added to the water and T is the temperature at which the heat is added. Since we are melting the ice, the temperature remains constant at 0.0 °C.

The heat added to the water can be calculated using the equation:

Q = m * L

where m is the mass of the water (0.400 kg) and L is the latent heat of fusion for water (334,000 J/kg).

Q = (0.400 kg) * (334,000 J/kg) = 133,600 J

Now we can calculate ΔS_water:

ΔS_water = (133,600 J) / (273 K) = 490 J/K

Part B: The change in entropy of the heat source (ΔS_source) can be calculated using the equation:

ΔS_source = -Q / T

Since the temperature of the heat source is 30.0 °C, we convert it to Kelvin:

T = 30.0 °C + 273 = 303 K

Now we can calculate ΔS_source:

ΔS_source = -(133,600 J) / (303 K) = -440 J/K

Part C: The total change in entropy is the sum of the changes in entropy for the water and the heat source:

ΔS_total = ΔS_water + ΔS_source = 490 J/K + (-440 J/K) = 50 J/K

Therefore, the total change in entropy of the water and the heat source is 50 J/K.

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No, a rocking chair would not be a good solution for a rescue team. A rocking chair is a comfortable seat designed for relaxation and leisure, not for use in a rescue situation.

Relaxation is the process of reducing physical and mental tension, typically through calming activities. It can help reduce stress, alleviate anxiety, and improve overall well-being. Relaxation techniques can include deep breathing exercises, progressive muscle relaxation, mindfulness meditation, guided imagery, and yoga. When practiced regularly, relaxation can help to relieve physical and mental tension, promote better sleep, and increase feelings of calm.

Rescue teams need equipment and supplies that are specifically designed for the purpose of rescuing people or animals in danger. This could include items such as climbing equipment, medical supplies, first aid kits, and more.

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