Sara walks part way around a swimming pool. She walks 50 yards north, then
20 yards east, then 50 yards south. The magnitude of her total displacement
during this walk is
yards.

mvh=1. 654106. 6210=41014m is the de Broglie wavelength of a proton whose kinetic energy is equal to that of the proton.

An electron has an energy of 100,000 eV (100 keV) at a potential difference of 100,000 V (100 kV), and so on. The energy gained by an ion with a double positive charge when it is accelerated through 100 V is 200 eV.

De Broglie wavelength is the length of a particle with kinetic energy E. The wavelength changes to /2 when energy E is added to it.

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Answer:

7000 meters

Explanation:

obviously 99.99 is less than 7000

10 cubed is 10 × 10 × 10, 1000, × 4.5 is 4500, which is less than 7000

10 squared is 100, which × 9 is only 900, which is also less than 7000

have a good day

Answer:

10 m/s

Explanation:

To calculate the resultant force on the aircraft as it accelerates from the catapult, we can use the work-energy principle, which states that the work done on an object is equal to the change in its kinetic energy.

Since all of the kinetic energy at take-off is from the work done on the aircraft by the catapult, we can equate the work done by the catapult to the kinetic energy of the aircraft at take-off, that is:

Work done by catapult = kinetic energy of aircraft at take-off

The work done by the catapult is given by the force provided by the catapult multiplied by the distance over which it acts, that is:

Work done by catapult = force × distance

The distance over which the force provided by the catapult acts is given as 150 m, so we have:

Work done by catapult = force × 150

The kinetic energy of the aircraft at take-off is given by:

(1/2) × mass × velocity^2

Since the aircraft is initially at rest, its initial velocity is zero, so we have:

kinetic energy of aircraft at take-off = 0.5 × mass × (final velocity)^2

Using the work-energy principle, we can equate the two expressions for work done and kinetic energy, that is:

force × 150 = 0.5 × mass × (final velocity)^2

Solving for force, we get:

force = 0.5 × mass × (final velocity)^2 / 150

Therefore, the resultant force on the aircraft as it accelerates is given by:

force = 0.5 × mass × (final velocity)^2 / 150

Note that we need to know the mass and final velocity of the aircraft in order to calculate the resultant force.

The equivalent temperature in Celsius scale is (86°F − 32) × 5/9 = 30°C

Take the °F temperature and subtract 32

Multiply this number by 5.

Divide this number by 9 to obtain your answer in °C.

The formula to convert °F to °C is:

T(°C) = (T(°F) - 32) × 5/9

converting 86 degrees Fahrenheit into degrees Celsius:

T(°C) = (86°F - 32) × 5/9

T(°C) = 30 °C

(86°F − 32) × 5/9 = 30°C

When doing the temperature conversion, one quick way to make certain you did the conversion right is to remember Fahrenheit temperatures are higher than the corresponding Celsius scale until you get down to -40°, which is where the Celsius and Fahrenheit scales meet. Below this temperature, degrees Fahrenheit are lower than degrees Celsius.

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Answer:

To find the frequency of heartbeats in hertz, we need to convert the beats per minute (BPM) to beats per second (BPS), since frequency is measured in hertz (Hz) which is equivalent to cycles per second.

Frequency = BPM / 60

Frequency = 65 / 60

Frequency ≈ 1.083 Hz

To find the period for each heartbeat in seconds, we need to find the reciprocal of the frequency, which gives the time duration for one complete cycle.

Period = 1 / Frequency

Period = 1 / 1.083

Period ≈ 0.922 seconds per beat

During the nuclear change we can expect to see different chemical symbols before and after the change

Chemical and nuclear reactions are quite different from one another. Atoms can share electrons with other atoms or participate in an electron transfer to increase their stability in chemical reactions. In nuclear reactions, the atom's nucleus stabilizes itself by going through some sort of alteration. Compared to the energies involved in chemical reactions, the energies produced in nuclear reactions are many orders of magnitude higher. Environmental factors like temperature or pressure do not significantly affect nuclear reactions like they do with chemical ones.

Nuclear reactions involve a change in an atom's nucleus, usually producing a different element. Chemical reactions, on the other hand, involve only a rearrangement of electrons and do not involve changes in the nuclei

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The position of the ball will greatly affected the amount of its gravitational pull energy because gravity depends on height.

The gravitational potential energy of an object is directly proportional to its height. Doubling of the height will result in a doubling of the gravitational potential energy and so on.

So we can conclude that the position of the ball will greatly affected the amount of its gravitational pull energy because gravity depends on height.

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Given:

The mass attached to pendulum A, m_A=200 g

The length of the string of the pendulum A, L_A=1.0 m

The mass attached to the pendulum B, m_B=400 g

The length of the string of the pendulum B, L_B=0.5 m

To find:

Which one of the given pendulums has the longest period.

Explanation:

The period of a pendulum is given by,

Where L is the length of the pendulum and g is the acceleration due to gravity.

From the above equation, it is clear that the period of a pendulum is directly proportional to the square root of the length of the string of the pendulum.

Thus longer the length of the pendulum the longer the period.

Pendulum A has the longer length of the string than pendulum B. Thus pendulum A has the longest period.

Fnala answer:

Thus pendulum A has the longest period.

Answer:

true, there are certain forms of bacteria in water that can cause permanent brain damage (although its rare) so further contamination of water can lead to higher chances of contracting serious illnesses caused by such bacteria.

the new volume of the gas is 3.49 L when An external force performs 180 J of work as it compresses the gas at constant pressure.

An ideal gas is a theoretical gas comprised of numerous randomly moving point particles that do not interact with one another. The ideal gas notion is valuable because it obeys the ideal gas law, which is a simplified equation of state, and is susceptible to statistical mechanics analysis. Work is pressure times change in volume.

Given,

initial Volume V₁ = 3.5 L

initial pressure P = 7.9 × 10⁴ Pa

Work = 180J

Work W = PΔV

180 J = 7.9 × 10⁴ Pa × ( 3.5L - V₂ )

2.27 × 10⁻³ =  0.0035m³ - V₂

3.5 - 2.27 × 10⁻³  = V₂

V₂ = 3.49 L

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ANSWER:

Coefficient of static friction

STEP-BY-STEP EXPLANATION:

We have that the force of friction is given by the coefficient of friction multiplied by the normal force, like this:

We know that an equation of a straight line the slope is expressed as follows:

Which means that the slope of the line between the relation of friction and normal force is the coefficient of static friction

Approximately 0.123 kg of liquid water at 26 degrees Celsius would be needed to melt 41 grams of ice.

To calculate the minimum amount of liquid water required to melt 41 grams of ice at 0°C, we need to consider the energy required for the phase change from solid to liquid, which is known as the specific heat of fusion of ice.

The energy required to melt 1 kg of ice is 3.33×105 J/kg.

Therefore, the energy required to melt 41 grams of ice is (3.33×105 J/kg) × (41/1000) kg = 13653 J.

To calculate the amount of liquid water required, we use the specific heat capacity of water, which is 4180 J/kg/°C.

Assuming the initial temperature of water is 26°C, the amount of water needed can be calculated as (13653 J) ÷ (4180 J/kg/°C) ÷ (26°C) = 0.123 kg or approximately 123 ml of water.

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Answer:

9,600 thank u

Explanation:

because blah blah blah

Answer:

1&2

Explanation:

the mass makes the pull of gravity greater

Answer:

the answer is gravity

Explanation:

a. There are two main types of pluralism: cultural and political

b. Yes, the United States is becoming more pluralistic

c. Ethnic enclaves can be both a positive and negative aspect of pluralism in the US.

a. Pluralism refers to the coexistence of multiple cultures, religions, and ethnicities within a society. There are two main types of pluralism: cultural and political. Cultural pluralism emphasizes the preservation of distinct cultural traditions, while political pluralism emphasizes the equal representation of different groups within the political system.

Cultural pluralism is often associated with the idea of multiculturalism, which recognizes and celebrates the diversity of different cultures. This type of pluralism acknowledges the importance of cultural differences and encourages individuals to maintain and express their cultural identities. In contrast, political pluralism emphasizes the importance of equal representation of different groups within the political system. This can take the form of proportional representation in government or equal access to political power for different groups.

b. The United States is becoming more pluralistic, as the population becomes more diverse and the importance of multiculturalism and political pluralism is increasingly recognized. The country is home to many different ethnic and cultural groups, and these groups are increasingly visible in politics and society. This is evident in the increasing number of ethnic and cultural enclaves, which are areas where different ethnic groups live in close proximity to one another.

c. Ethnic enclaves can be both a positive and negative aspect of pluralism in the US. On the one hand, they allow individuals to maintain their cultural traditions and create supportive communities. On the other hand, they can also lead to segregation and exclusion, as different groups may be reluctant to interact with one another. In order to promote a positive form of pluralism, it is important to encourage interaction and understanding between different groups, while also respecting and celebrating their distinct cultural identities.

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Flying into a microburst is more dangerous than flying into a hurricane because it usually happens during takeoff and landing.  

A microburst is a strong movement of air downwards. It happens inside a thunderstorm. In a microburst a plan is pushed towards the ground with a high force.

A hurricane is a typical cyclone with winds rotating rapidly with a spiral arrangement of thunderstorm. A hurricane is accompanied by rain, thunder and lightning. If an aircraft enters a hurricane the air craft loses control yet stays up in the air, so the pilot can control if the aircraft enters an area where the effect of hurricane is low.

Therefore, flying into a microburst is more dangerous than flying into a hurricane because it usually happens during takeoff and landing.  

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It needs fuse of size 3A to be operated

Answer: 10 A

Explanation: The 3a and 5 a will blow immediately which would not allow you to use the coffee machine

The 13 a is too high and might lead to damage to the coffee machine or a fire being started

10 A is perfect because its low enough that if their was a power surge it would be blown without damaging anything else and it is high enough to let the coffee machine work without any trouble

Answer:

what is the help you can tell

The mass of Car B is -6000 kg.

To solve this problem, we can apply the principle of conservation of momentum, which states that the total momentum before the collision is equal to the total momentum after the collision.

Therefore, we can write the equation for the conservation of momentum as:

(mass of Car A * velocity of Car A) + (mass of Car B * velocity of Car B) = (mass of Car A + mass of Car B) * velocity after collision

Let's substitute the given values into the equation:

(2000 kg * 10 m/s) + (mass of Car B * 0 m/s) = (2000 kg + mass of Car B) * (-5 m/s)

Simplifying the equation:

20000 kg*m/s = -5 m/s * (2000 kg + mass of Car B)

Dividing both sides by -5 m/s:

-4000 kg = 2000 kg + mass of Car B

Subtracting 2000 kg from both sides:

mass of Car B = -4000 kg - 2000 kg

mass of Car B = -6000 kg

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We are asked to determine the force required to accelerate a 1500 kg mass at a rate of 3 meters per second squared. To do that we will use Newton's second law, that is:

Where "F" is the force, "m" is the mass, and "a" is the acceleration. Replacing the values:

Solving the operations:

Therefore, the force required is 4500 Newtons.

Answer:

246ft/min

Explanation:

In this problem we are faced with unit conversion.

We are expected to convert from km/h to ft/min

Given that

1.00 m = 3.28 ft

1km(1000m)= 3280 ft

But we need to convert 4.5km to ft

Hence in ft 4.5km= 3280*4.5

= 14760ft

We now convert hour to minutes

60min make 1 hour

Therefore the convert form km/h to ft/min is

= 14760/60= 246ft/min

The answer is 246ft/min

The resultant force acting on the whale is 18000 the mass of the whale is 4100 kg is 4.39 \(m/s^{2}\)

The resultant force acting on an object is the net force acting on the object, which is the vector sum of all the individual forces acting on the object. In this case, we have a whale with a resultant force of 18000 N acting on it, and a mass of 4100 kg.

The relationship between force, mass, and acceleration is given by Newton's Second Law of Motion, which states that the net force acting on an object is equal to the product of its mass and acceleration:

F_net = m * a

where F_net is the net force, m is the mass of the object, and a is the acceleration of the object.

Rearranging this equation, we can solve for the acceleration of the whale:

a = F_net / m

Substituting the given values, we get:

a = 18000 N / 4100 kg

a ≈ 4.39 \(m/s^{2}\)

This means that the whale is accelerating at a rate of approximately 4.39 \(m/s^{2}\) due to the resultant force acting on it. The direction of this acceleration will depend on the direction of the resultant force.

It is important to note that a force alone does not determine the motion of an object. The motion of an object depends on the net force acting on it and the object's initial velocity. If the whale was already moving before the resultant force was applied, then the motion of the whale would depend on the interaction between the force and the object's initial velocity.

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Answer:

T = 6.72 s

Explanation:

V(1) would be the final velocity of the rocket when it's engines are fired. This V(1) is also equal to the initial velocity of the rocket if it's engines gets shut down.

Also, y(1) is the distance that will be traveled by the rocket if the engines get shut down.

see attachment for calculations.

The first is upon firing of the rocket engines

The second is when the engines are down

The third is when the engines are fired.

Angular momentum is conserved in the above examples such as the ice skater, the torque or the rotating effect of the force is almost equal to zero because there is negligible friction between the skates and the ice.

The principle of conservation of angular momentum states that the total angular momentum acting on an object is constant, provided there is no  external torque acting on the object.

Angular momentum of a system is conserved as long as there is no net external torque acting on the system.

Thus, angular momentum is conserved in the above examples such as the ice skater, the torque or the rotating effect of the force is almost equal to zero because there is negligible friction between the skates and the ice.

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Two forces acting on the rocket immediately after leaving the launching pad are the gravitational force and the thrust force.

1. Gravitational Force: The gravitational force is the force exerted by the Earth on the rocket due to their mutual gravitational attraction. It acts downward and is responsible for the rocket's weight.

This force can be represented by the equation Fg = mg, where Fg is the gravitational force, m is the mass of the rocket, and g is the acceleration due to gravity. The gravitational force acts to pull the rocket downward, opposing its upward motion.

2. Thrust Force: The thrust force is the force generated by the rocket's engines as they expel exhaust gases in the opposite direction. It acts upward and propels the rocket forward.

The magnitude of the thrust force depends on factors such as the design of the rocket engines, the amount of fuel burned, and the rate of exhaust gas expulsion. The thrust force must be greater than or equal to the gravitational force for the rocket to overcome Earth's gravity and achieve upward acceleration.

Initially, when the rocket is launched, the thrust force is at its maximum while the gravitational force remains constant. As the rocket gains altitude, the gravitational force decreases slightly due to the increasing distance from the Earth's center.

However, the thrust force continues to be the dominant force propelling the rocket upward.

It's important to note that other forces such as air resistance and wind may also act on the rocket, but immediately after leaving the launching pad, these forces are typically negligible compared to the gravitational force and thrust force.

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Answer:

A. The fugacity in the vapor phase at T = 323 K and P = 10 kPa:

Explanation:

The best choice is A. The formula that can be used to calculate the acceleration is a= dv/t

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