Just say true or false no explanation needed this is homework.

Gravity on Uranus is 86% of Earths.

100 pounds x 86% = 86 pounds

You would weigh 86 pounds.

"The required kelvin temperature when celsius temperature is given is calculated to be 305.65 K."

There are three main scales to measure temperature. They are Celsius, Fahrenheit and Kelvin scales of measurement. Kelvin is said to be the official metric unit of temperature.

The temperature of water is given as 32.5 °C.

The same temperature in kelvins should be found out.

Converting celsius scale temperature to kelvin scale, we should add up 273.15 to the temperature in celsius scale.
Kelvin temperature = 273.15 + Celsius temperature

Kelvin temperature = 273.15 + 32.5 °C = 305.65 K

Thus, the kelvin temperature is calculated to be 305.65 K.

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The main difference between Kinetic energy and Potential energy is that kinetic energy refers to movement while potential energy refers to storage.

Kinetic energy is a type of energy in motion or energy in movement such as a turbine (mechanical energy), while Potential energy refers to the energy that is stored to be used when required (e.g. chemical bonds of foods).

Therefore, with this data, we can see that  Kinetic energy is used as movement, while Potential energy is stored to be used in the future.

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Answer:

Independent variable

Explanation:

A

That depends on what word you skipped at the beginning of the question.

If it's supposed to be "Potential" energy, then the statement is false.**

If It's supposed to be "Kinetic" energy, then the statement is true.

** It's also false if the missing word is "Chemical", "Mechanical", "Thermal", "Nuclear", "Electrical", "Electromagnetic", or "Nervous".)

The electric field at a point halfway is 18.37 x 10⁵ N/C.

We need to know about the electric fields to solve this problem. The electric field produced by a single-point positive charge is a radial field, whose strength is given by the equation

E = k.Q/r²

where E is the electric field, Q is the charge and r is the radius.

From the question above, we know that

k = 9 x 10⁹ Nm²/C²

Q1 = -5μC = -5 x 10¯⁶ C

Q2 = 4μC = 4 x 10¯⁶ C

x = 21 cm = 0.21 m

from midpoint (r = 0.105 m)

The electric field directly outward from Q2 to Q1 so that the total electric field between the charges will be added up.

Etotal = E1 + E2

Etotal = k.Q1/r² + k.Q2/r²

Etotal = k/r² x (Q1 + Q2)

Etotal = 9 x 10⁹/(0.21)² x (5 x 10¯⁶ + 4 x 10¯⁶)

Etotal = 18.37 x 10⁵ N/C

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If a source emits sound at a fixed constant frequency f, and it moves away from the observer at the same time as the observer moves away from the source, the frequency the observer hears is lower than f. Hence option lower than f. is correct.

This is due to the Doppler effect. What is the Doppler effect? The Doppler effect is a phenomenon that occurs when a source of waves, such as sound or light, is moving relative to an observer. The Doppler effect causes the observed frequency of the waves to differ from the emitted frequency when the source and observer are moving relative to each other. This change in frequency is due to the compression or stretching of the waves that occurs as the source moves closer or farther away from the observer.

If a source of sound is moving away from an observer, the sound waves become stretched and the frequency of the sound decreases, resulting in a lower pitch. If the source of sound is moving towards the observer, the sound waves become compressed, causing the frequency of the sound to increase, resulting in a higher pitch. This is the reason why an ambulance siren sounds higher-pitched as it approaches the listener and then drops to a lower pitch as it moves away.

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The following measurement means "no limitation". This measurement indicates the range of motion for wrist flexion, which is the movement of the wrist towards the palm of the hand.

What is wrist flexion?

Wrist flexion is the movement of the wrist towards the palm of the hand. It is the opposite movement of wrist extension, which is the movement of the wrist away from the palm of the hand. Wrist flexion is an important motion for many daily activities such as typing, writing, and holding objects.

What does 15-85 degrees of wrist flexion mean?

When measuring wrist flexion, the range of motion is measured in degrees. In this case, the measurement is 15-85 degrees. This means that the normal range of motion for wrist flexion is between 15 and 85 degrees. If the measurement falls within this range, then there is no limitation in wrist flexion. However, if the measurement falls outside of this range, then there may be a limitation in wrist flexion.A limitation in extension refers to a decreased range of motion when moving the wrist away from the palm of the hand. A limitation in flexion refers to a decreased range of motion when moving the wrist towards the palm of the hand. A limitation in both flexion and extension refers to a decreased range of motion in both movements.

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Answer:

ALL OF THE ABOVE

Explanation:

A vehicle undergoes acceleration when what three things happen?

If there is acceleration, the velocity will change, either increasing or decreasing. The correct answer is D.

The rate of growth of velocity is defined as acceleration. Acceleration usually indicates that the speed is changing, but this is not always the case. When an object is in motion in a circular track at a steady speed, it is still going to accelerate because its velocity direction changes.

Newton's Second Law states that an object's acceleration is the net result of all force applied to it. Acceleration is measured in meters per second squared.

The formula is given as,

a = Δv / Δt

If acceleration exists, the change of the velocity will be there and it may be increasing or decreasing. Then the correct option is D.

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The functioning of a radio obeys the energy conservation principle, the energy is conserved throughout the process of transmitting sound waves.

Radio is a device that receives and broadcasts electromagnetic waves in the radio frequency (RF) range. The energy conservation principle states that energy can neither be created nor destroyed, but it can be converted from one form to another. This principle applies to the functioning of a radio, where the energy is conserved throughout the process.

When a radio receives a signal, it converts the electromagnetic wave energy into an electrical signal using an antenna. The electrical signal is then amplified and demodulated to extract the original audio signal. The audio signal is then amplified again and played through a speaker, where the electrical energy is converted into sound energy. The energy that was originally present in the electromagnetic wave is conserved throughout this process and is not lost.

Similarly, when a radio broadcasts a signal, the audio signal is first converted into an electrical signal, which is then amplified and used to modulate an RF carrier wave. The modulated RF wave is then transmitted through an antenna as electromagnetic waves. The electrical energy from the audio signal is conserved and transformed into electromagnetic energy in the transmitted signal.

In both cases, the energy conservation principle is applied, and the energy is conserved throughout the process. Therefore, the functioning of a radio obeys the energy conservation principle.

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When compared to winds at the surface, winds at 2,000 feet are typically higher due to the absence of friction.

At the surface, winds are affected by friction with the Earth's surface, which slows them down and causes them to move in a more turbulent and erratic fashion. However, as winds move up in altitude, they encounter less and less friction, allowing them to increase in speed and flow in a more uniform and predictable manner.
While friction may still have some influence on winds at 2,000 feet, it is not as significant as at the surface. Therefore, winds at this altitude tend to move more smoothly and follow a more consistent path, often perpendicular to the isobars (lines of equal pressure) on a weather map. This makes them useful for aviation purposes, as pilots can use this information to plan their flight paths and take advantage of favorable tailwinds or avoid dangerous crosswinds.
In contrast, winds at the surface are more affected by local topography, temperature gradients, and other factors that can cause them to vary widely in direction and speed. Overall, winds at 2,000 feet are an important component of the Earth's atmospheric circulation system, and understanding their behavior is essential for predicting weather patterns and ensuring safe air travel.

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The same thing could reasonably be said about multicollinearity. Specifically, the reason for this is due to the violation of the assumption of independent predictors.

Let us understand what these terms mean:

In statistical analysis, multicollinearity is the high correlation among predictors in a regression model. It is problematic because of its adverse effects on the model, including making it difficult to determine the effect of an independent variable, coefficients becoming insensitive to small changes in the model, and reducing the reliability of the model.

In regression analysis, independent predictors are those variables that contribute to the prediction of the dependent variable or outcome, and their inclusion in the model improves the accuracy of the prediction of the model.

In a regression model, it is an assumption that predictors are independent, which means that the predictors have little to no correlation with each other. If this assumption is violated, it is known as multicollinearity.

Therefore, the same thing could reasonably be said about multicollinearity. Specifically, the reason for this is due to the violation of the assumption of independent predictors.

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Usually, not all atoms exhibit magnetism despite electrons behaving like magnets. Magnetism in atoms depends on the arrangement and alignment of electrons.

Electrons have spin orientations, either "up" or "down."

In atoms, when electrons pair up with opposite spins, their magnetic effects cancel out, resulting in no net magnetism.

Only in certain materials with unpaired spins and aligned magnetic moments, like iron or cobalt, do atoms exhibit magnetism.

However, most atoms have electron configurations that lack unpaired spins or significant alignment of magnetic moments, leading to no noticeable magnetism.

The presence or absence of magnetism in atoms is determined by the electron arrangement and interactions.

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Answer:

B

Explanation:

An attractive force will occur between the plastic rod and nearby object.

An object is placed near the plastic rod, and an attractive force is detected then the object react when near the glass rod due to presence of attractive force between them. Attraction occurs between two bodies or objects when there is presence of opposite charges on both objects.

So we can conclude that an attractive force will occur between the plastic rod and nearby object.

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The universe is thought to be 13.8 billion years old, according to the best estimate for the Hubble constant at roughly 70 km/s/Mpc.

The Hubble constant would have to be cut in half, from 70 km/s/Mpc to 35 km/s/Mpc, increasing the assumed age of the universe.

This is so because, assuming the universe has been expanding at a constant pace since the Big Bang, & the Hubble time—which is the reciprocal of the Hubble constant—represents the age of the universe. The cosmos has been expanding for a longer time if the Hubble constant has a smaller value.

The revised Hubble constant of 35 km/s/Mpc results in a Hubble time of 28.6 billion years. This suggests that the universe is probably far older than its current estimated age of 13.8 billion years & it is also important to keep in mind that the best estimate of the Hubble constant at the time has a very low degree of uncertainty, making a significant departure from this value unlikely.

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La adicion de vectores permite encontrar la repuesta para la velocidad resultante del avión es:

Las magnitudes vectoriales son cantidades tienen modulo y dirección, la velocidad es una de estas magnitudes, por lo tanto deben ser sumada usando álgebra vectorial.

Un sistema de referencia es un sistema desde donde realizar las mediciones, en este caso indican que usemos un sistema de los puntos cardinales.

En el adjunto podemos ver un esquema de los vectores velocidad y su resultante, realicemos el calculo de la resultante por método analíticos

Indican que el valor de la velocidad hacia el Este es vₓ = 20 m/s y la velocidad hacia el Norte es v_y = 90 m/s, por lo tanto, para la magnitud usamos el Teorema de Pitágoras

           \(R= \sqrt{v_x^2 + v_y^2}\)

           R = \(\sqrt{20^2 + 90^2}\)

          R = 92,2 m/s

Para encontrar la direccion usemos trigonometría

          tan θ = \(\frac{v_y}{v_x}\)

          θ = tan⁻¹ \(\frac{v_y}{v_x}\)

          θ = tan⁻¹ 20/90

          θ = 12,5º

La dirección se lee 12,5º al Norte del Este

En conclusión usando la suma de vectores  podemos encontrar la repuesta para la velocidad resultante del avión es:

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the maximum elongation of the spring is  0.5 m.

Calculation :

given ,

           mass = 2Kg

           K (Spring constant) = 200 n/m

           speed = 5 m/s

At the point where it has a speed of 5 m/s there is only kinetic energy and at max elongation there is only potential energy.

    =     \(\frac{1}{2}MV^{2} = \frac{1}{2} Kx^{2}\)

 =   (1/2)*2*5² = (1/2)*200*x²

     = 25  = 100 x²

     = \(X = \sqrt{\frac{25}{100} }\)

     X = 0.5 m

Magnetically confined fusion plasmas, such as those produced in tokamak and stellarator, are characterized by typical geometries. Plasma shaping is the study of plasma shape in such devices and is of particular importance for next-stage fusion devices such as ITER. This shape partially determines the performance of the plasma. In particular, since the tokamak is an axisymmetric device, the shape of the plasma can be completely defined by its cross section.

Early fusion reactor designs tended to have circular cross-sections simply because they were easier to design and understand. In general, fusion machines that use a toroidal layout, such as tokamak and most stellarators, arrange the magnetic field so that the ions and electrons in the plasma move rapidly around the torus.

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While you push a box you begin to decrease the force you are exerting on the box. The box will reach static equilibrium when there is no net force applied to it in any direction.

Static equilibrium refers to the equilibrium that exists between two or more objects such that there is no net change in the position or direction of the object.

When an object is in static equilibrium, it remains in its position without moving even if a force is applied to it.

Examples of objects  in static equilibrium include:

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Answer:

It's 31

Explanation:

add 15 and 16

Answer:

5 Oxygen , 3 Carbon dioxide and 3 water

Answer: the answer is 5

i) The total energy of the body at points A, B and C during the fall is the same because the law of conservation of energy.

ii) distance from A to B and final velocity is 44.3 m/s.

i) The total energy of the body at points A, B and C during the fall is the same because the law of conservation of energy states that energy can neither be created nor destroyed, only transferred or transformed. In this case, the potential energy of the body at point A is converted into kinetic energy as it falls to point B. At point B, all of the potential energy has been converted into kinetic energy, and the body has its maximum velocity. As the body continues to fall from point B to point C, its kinetic energy is converted back into potential energy. At point C, all of the kinetic energy has been converted back into potential energy, and the body has its original height.

ii) The distance from A to B can be found using the equation d = √2gh

, where d is the distance, g is the acceleration due to gravity, and h is the height. In this case, g = 9.8 m/s² and h = 100m, so d = √(2⋅9.8⋅100) = 44.3m.

The final velocity of the ball just before it reaches point C can be found using the equation v = √2gh

, where v is the velocity, g is the acceleration due to gravity, and h is the height. In this case, g = 9.8 m/s² and h = 100m, so v = √(2⋅9.8⋅100) = 44.3 m/s

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Answer: option C.

Fabrics such as cotton and silk are synthetic polymers

Explanation:

Fabrics such as cotton and silk are synthetic polymers because cotton and silk are natural polymers meaning they are gotten from natural source. Cotton is gotten from cotton plants and it is composed of cellulose which is a carbohydrates.

Silk also is gotten from animals I.efrom insect fibre or the cocoons of the larvae of the mulberry silkworm which is a polymer.

The weather that is least likely to occur when a cold air mass moves in and overtakes a warm front in the presence of a low-pressure system is clear skies ( D ).

When a cold air mass moves in and overtakes a warm front in the presence of a low-pressure system, it is called as occluded front. During this the colder air is pushed beneath the warmer air. Depending on the direction of occlusion, it can be of two types of of occluded fronts such as

During occluded fronts the possible weather conditions are

Therefore, the weather that is least likely to occur with these conditions is clear skies ( D ).

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Answer:

Move. It also determines the total amount of force put on an object

Explanation:

The question is incomplete, the complete question is;

The net force determines how and if an object will?

A) make a balanced force

B) change its mass

C) move or accelerate

When unbalanced forces act on an  object, the object moves  or accelerates. The correct answer is option C: move or accelerate

Force is considered as a push or pull. Unbalanced forces refers to a system of forces acting in opposite direction and are not equal in magnitude.

Unbalanced forces cause an object to move or accelerate in the direction of the larger force.

Hence, The net or resultant force determines how and if an object will move or accelerate when under the action of unbalanced forces.

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Atoms have no electric charge because they have an equal number of electrons and protons.

Explanation:

So from this, we can conclude that atoms have no electric charge because they have an equal number of electrons and protons. Option C is correct.

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Answer:

The momentum of the car is 35,000 kg.m/s

Explanation:

Momentum

Momentum is often defined as mass in motion.

Since all objects have mass, if it's moving, then it has momentum. It can be calculated as the product of the mass by the velocity of the object:

\(\vec p = m\vec v\)

If only magnitudes are considered:

p = mv

The car has a mass of m=1,000 kg and travels at v=35 m/s. Calculating its momentum:

p = 1,000 kg * 35 m/s

p = 35,000 kg.m/s

The momentum of the car is 35,000 kg.m/s

The momentum of the car is 35000 kgm/s.

Linear momentum, translational momentum, or simply momentum is the product of the mass and velocity of an object. It is a vector quantity, possessing a magnitude and a direction.

If m is the mass and v is the velocity of an object, then the object's momentum p is given below.

\(p = mv\)

Given that the mass of the car is m=1,000 kg and travels at v=35 m/s. The momentum is given below.

\(p = 1000 \times 35\)

\(p = 35000 \;\rm kg m/s\)

Hence we can conclude that the momentum of the car is 35000 kgm/s.

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The force on the object is 0.822 N.

Forces affect the motion of objects. They can cause movement. You can also slow down, stop, or change the direction of objects that are already moving. We say that a force changes its velocity because it changes the speed or direction of an object. Remember that acceleration is a change in velocity. F= mdv / dt

So m= 2.74 kg and dv= 16.49-16.19 = 0.30.

If time is 1 second,

F=2.74*0.3

= 0.822N

Therefore, the force on the object is 0.822 N.

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Answer:

C. The molecules have charged regions

Explanation:

The reason for the existence of intermolecular force between the water molecules is option C. The molecules have charged regions.

The intermolecular forces should be existed between water molecules because it has the charged regions.  Neither it contains the oxygen, nor electrically neutral. Also, not composed of atoms.

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Answer:

90.15K

Explanation:

The formula is x°C + 273.15 = yK

Answer:

(-183°C) = 90.15K

Explanation:

-183°C is given

Now,

K = °C + 273

K = (-183) + 273.15

K = 90.15

Thus, (-183°C) = 90.15K

-TheUnknownScientist