A 9mm bullet has a mass of 0.007 kg. When fired
from a handgun, its momentum is measured to
be 2.66 kgm/s. What is the velocity of the bullet?

To determine the reject rate (RR) for each scenario, we need to consider the capability indices Cp and Cpk along with the specifications for tensile strength. The reject rate represents the proportion of parts that do not meet the specifications.

1. RR = 0.27%

2. RR = 16.03%

3. RR = 0%

4. RR = 0.003%

5. RR = 0.27%

6. RR = 2.28%

7. RR = 29.93%

8. RR = 0%

9. RR = 5.87%

Please note that these calculations assume a normal distribution of tensile strength and that the process is in statistical control. The reject rate is obtained by evaluating the proportion of values falling outside the specified limits based on the process capability indices Cp and Cpk.

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Answer:

b

Explanation:

i know

Answer:

b one will not accelerate

A magnetic field created by the electric current causes the compass needle to move. Option D is the correct answer.

When an electric current flows through a wire, it creates a magnetic field around the wire. The direction of the magnetic field is determined by the direction of the current. When a compass is placed next to the wire, the magnetic field created by the current causes the compass needle to move.

In a simple circuit made from a battery, a light bulb, and a wire, the electric current flows from the battery, through the wire, and through the light bulb, and then back to the battery. This creates a magnetic field around the wire, which can cause the compass needle to move when it is placed next to the wire. Hence, option D is correct choice.

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The fine horizontal scratches etched onto a bullet after it has been fired are called Striations.

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Answer:

all of above I think sorry if I'm not right but I tried

Answer:  d

Explanation:

The mass of 3.51 cm³ of iron is approximately 24.82 grams.

To calculate the mass of a given volume of iron, we can use the formula:

Mass = Density × Volume

Density of iron = 7.07 g/cm³

Volume of iron = 3.51 cm³

Substituting the values into the formula:

Mass = 7.07 g/cm³ × 3.51 cm³

Calculating the result:

Mass = 24.8157 g

Therefore, the mass of 3.51 cm³ of iron is approximately 24.82 grams.

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The Copernican Principle refers to the idea that there is nothing special about our place in the universe, and that everything in the universe revolves around the Sun, challenging the geocentric model.

The Copernican Principle is a foundational concept in astronomy and cosmology. It challenges the geocentric view by asserting that there is nothing special about our place in the universe. It proposes that everything in the universe, including celestial bodies and systems, revolves around the Sun. This heliocentric model, pioneered by Nicolaus Copernicus, marked a significant shift in our understanding of the cosmos. It introduced the idea that the Earth is not the center of the universe but rather a planet in orbit around the Sun. The Copernican Principle has since shaped our perception of the vastness and diversity of the cosmos, challenging previous geocentric beliefs.

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Answer:

5(2)+5(7)

Explanation:

5(2)+5(7)=10+35=45

By ideal gas approximation, the final pressure is 75.76 atm.

We need to know about the ideal gas theory to solve this problem. The ideal gas is assumed that there is no interaction between particles in a gas. It can be determined by the equation

P . V = n . R . T

where P is pressure, V is volume, n is the number of moles gas, R is the ideal gas constant (8.31 J/mol.K) and T is temperature.

From the question above, we know that

P1 = 50 atm

T1 = 330 K

T2 = 500 K

When the initial and final volume is the same, we can use the ratio of pressure and temperature as

P1 / P2 = T1 / T2

50 / P2 = 330 / 500

P2 = 50 x 500 / 330

P2 = 75.76 atm

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True because In a hurricane, the eye is the center of the storm and typically has the calmest conditions.

However, surrounding the eye is the eyewall which contains the most intense winds and rainfall of the storm. The eyewall can extend outward for several miles and is where the most destructive forces of the hurricane are found. These winds can reach speeds of over 200 miles per hour and can cause significant damage to buildings, trees, and other structures in the affected area. It is important to take all necessary precautions and evacuate if advised to do so when a hurricane is approaching to ensure safety during this dangerous natural disaster.
False. In a hurricane, the greatest wind speeds and heaviest rainfall occur in the region called the eyewall, which surrounds the eye. The eye is the calm center of the storm with relatively low wind speeds and little to no rainfall.

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Space probes are unmanned spacecraft that are designed to explore the solar system and beyond. They are equipped with advanced technologies and scientific instruments that help in navigation and space exploration. Here are some ways that space probes are useful:

Mapping and Navigation: Space probes help to map and navigate the solar system. They collect data on the location, size, and movement of planets, moons, asteroids, and other celestial bodies. This information is used to help spacecraft navigate and avoid obstacles during missions.

Studying Planets and Moons: Space probes can land on and study planets and moons in the solar system. They collect data on the composition, temperature, and atmosphere of these bodies. This information is used to learn about the origins and evolution of the solar system.

Searching for Signs of Life: Space probes are used to search for signs of life on other planets and moons. They look for evidence of water, organic compounds, and other indicators that life may exist or have existed in the past.

Collecting Samples: Some space probes are designed to collect samples of rocks, soil, and other materials from other planets and moons. These samples can be studied to learn more about the composition and history of the solar system.

Communication: Space probes are equipped with antennas that allow them to communicate with Earth. They send back data and images that are used by scientists to learn more about the solar system.

Overall, space probes are important tools for navigation and space exploration. They help us learn more about the solar system and the universe beyond.

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.

Answer:

D. 72.9 cm/s towards the wall

Given that a horizontal force of at least 200 N is required to start moving an 800 N crate initially at rest on a horizontal floor. We are to find the coefficient of a static friction.To find the coefficient of static friction, we need to make use of the following formula.

When the crate is at rest, the force of static friction acting on the crate is maximum and is given by: f_s = μ_s × NwhereN is the normal force and is equal in magnitude to the weight of the crate.N = mgwhere m is the mass of the crate and g is the acceleration due to gravity.Substituting the value of N in the equation for the force of static friction, we get:f_s = μ_s × mg.

Given that a horizontal force of at least 200 N is required to start moving the crate, the force of static friction acting on the crate is equal to 200 N. Thus, we have:f_s = 200 N = μ_s × mgSubstituting the values of f_s, m, and g, we get:200 N = μ_s × 800 N × 9.81 m/s² Simplifying.

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Answer:

$2140

Explanation:$2000 missing plus 7 percent of 2000 is 140 so 2000+140=2140. Each month she would pay $268 approx.

In the peak of summer, it hasn't rained in a week, and the plants are looking rough, so watering the plants for an hour is a good idea.

However, the next day, you come back to the garden, and the plants look in worse shape than they did previously, as if none of that water made it to the plant. Plants absorb water through their roots. The root system of a plant is responsible for drawing water and nutrients from the soil. A plant's root system must be able to absorb water quickly in order for the plant to grow and thrive. When the soil around the root system is dry, the roots will stop growing and will not be able to absorb water.

It may even start to die. Watering plants during the peak of summer is important because it will help keep the soil moist and prevent the roots from drying out. However, watering a plant too much can be harmful. If a plant is overwatered, the water may not be able to penetrate the soil and reach the roots. Instead, it may just sit on top of the soil, causing the roots to rot and die. This can cause the plant to wilt and die.To summarize, if the soil around the plant is too dry, the roots may not be able to absorb the water you gave them, causing the plant to look worse than before. Conversely, overwatering can also be harmful because the water may not be able to penetrate the soil and reach the roots, causing the roots to rot and die.

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Answer:

Explanation:

Sounds travel faster in object having high density proportion or matter. This is because particles vibrates and causing the other particle near to as well vibrate. Hence, when sound is moving from a higher dense medium like Water, the rate of traveling is high compare to it moving in air with less dense.

The kinematics and conservation of momentum relationships allow to find the results for the questions about the measurements and conditions to know the accident conditions are:

     1) The principles of conservation of momentum  and kinematics.

     2)  \(\theta = tan^{-1} \frac{P_{01}}{p_{02}}\)

     3) The factors that influence the direction and distance traveled are:

         The initial speed of the vehicles

         The mass of the vehicles

         Pavement conditions: dry, wet, humid, with dirt or loose sand.

1) Kinematics studies the movement of bodies, they look for relationships between position, speed and acceleration.

To analyze the accident, you must answer a question such as what speed the vehicles had before the accident, this is the initial speed of each one and their directions.

When reviewing the kinematics relationships we have.

        \(v^2 = v_o^2 - 2 a x\)  

Where the acceleration is given by Newton's second law.

        fr = m a

The friction force is given by the expression.

       fr = μ N  

       fr = μ mg

Let's Substitute.

         μ m g = m a

         a = μ g

The friction coefficient is tabulated, for different types of rubber, pavement and wet,  dry conditions, etc.

Therefore, the researcher must measure the braking distance of the vehicles, which can be taken from the mark of the tires on the road and note the condition of the pavement if it is dry or wet and the visibility of the day.

This is the speed of the vehicles just after the impact, using the law of conservation of momentum you can find the speed of the vehicles before the impact

        \(p_o = p_f\) \f

Where this is a vector expression, which in general is solved with the components of each directional.

Consequently to answer the questions you must use the principles of conservation of momentum  and kinematics.

2) If the vehicles travel at right angles and their masses are similar, the direction after the collision  in each direction.

           \(tan \theta = \frac{p_{01}}{p_{02}}\)  

           \(\theta = tan ^{-1} \frac{p_{01}}{p_{02}}\)  

3) The factors that influence the direction and distance traveled are:

     The initial speed of the vehicles

     The mass of the vehicles

     Pavement conditions: dry, wet, humid, with dirt or loose sand.

In conclusion, using the kinematics and conservation of momentum relationships, we can find the answers to the question about measurements and conditions to know the accident conditions are:

      1) The principles of conservation of momentum  and kinematics.

     2)  \(\theta = tan^{-1} \frac{P_{01}}{p_{02}}\)

     3) The factors that influence the direction and distance traveled are:

         The initial speed of the vehicles

         The mass of the vehicles

         Pavement conditions: dry, wet, humid, with dirt or loose sand.

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Answer: Work can transfer energy between objects and cause a change in the amount of total energy. Work can transfer energy between objects and cause a change in the form of energy. ... When a spring is compressed, the energy changes from kinetic to potential.

Answer:

work can transfer energy

Explanation:

sense there is a ton of effort in work it can accumulate energy. physical and thermal energy. :)

Answer:

90m

Explanation:

it travels at 30 m/s so 30*3 is 90

The maximum allowable length for float glass jalousies is 150 cm.

What is Float Glass?

Float glass refers to a type of glass that is made by floating molten glass on a bed of molten metal. Float glass is a popular type of glass because it is both strong and durable.

Float glass is often used in windows, mirrors, and other applications where high-quality glass is required.

What is a Jalousie?

A jalousie is a type of window that consists of a series of parallel glass panes that are set in a frame. Jalousies are typically designed to allow air to flow through them, which makes them ideal for use in hot climates where ventilation is important.

What is the maximum allowable length for float glass jalousies?

The maximum allowable length for float glass jalousies is 150 cm. This means that any jalousies that are made from float glass cannot exceed this length. This limit is in place to ensure that the glass is strong enough to support itself and to prevent it from breaking under its own weight.

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Answer:

yellow

Explanation:

yellow

make me brain

To find the velocity and acceleration of the object described by the function s(t) = 5t^2 + 20t, we need to differentiate the function with respect to time.

a) Velocity (v(t)):

Taking the derivative of s(t) with respect to t will give us the velocity function.

s(t) = 5t^2 + 20t

v(t) = d/dt (5t^2 + 20t)

v(t) = 10t + 20

Therefore, the velocity function is v(t) = 10t + 20.

b) Acceleration (a(t)):

Taking the derivative of the velocity function v(t) with respect to t will give us the acceleration function.

v(t) = 10t + 20

a(t) = d/dt (10t + 20)

a(t) = 10

Therefore, the acceleration function is a(t) = 10.

c) Velocity and acceleration at t = 2 sec:

To find the velocity and acceleration at t = 2 sec, we substitute t = 2 into the respective functions.

For velocity:

v(t) = 10t + 20

v(2) = 10(2) + 20

v(2) = 40 ft/s

For acceleration:

a(t) = 10

a(2) = 10 ft/s^2

Therefore, at t = 2 sec, the velocity is 40 ft/s and the acceleration is 10 ft/s^2.

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Explanation:

\(b. \: light\)

Answer:

160J

Explanation:

Given parameters:

Frequency  = 16Hz

Wavelength = 10m

Unknown:

Waves speed  = ?

Solution:

Waves speed is the product of frequency and wavelength;

  Waves speed  = fλ

f is the frequency

λ is the wavelength

Now insert the parameters and solve;

     Waves speed = 16 x 10  = 160J

a) Gravity: This is a long-range force and the agent of the force is the Earth. b) Air Resistance: This is a contact force and the agent of the force is the air molecules. c) Normal Force: This is a contact force and the agent of the force is the ground.

Air resistance, also known as drag, is a type of frictional force that acts upon objects when they move through a fluid, such as air or water. Air resistance occurs when the air molecules surrounding an object collide with the object’s surface, resulting in a resistive force that opposes the object’s motion. The magnitude of air resistance is dependent on the object’s shape, size, mass, speed, and altitude. Objects with a large surface area, such as parachutes, are more affected by air resistance than objects with a smaller surface area. Air resistance increases with an object’s speed and is stronger at higher altitudes, where the air is thinner. The effects of air resistance can be seen in everyday objects, such as an airplane or a car, and can be reduced by altering an object’s shape or by decreasing its speed.

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