A gas occupies a volume of 35.9 ml at a temperature of 22.0 C. What volume will the same gas occupy at a temperature of 28.0 C?

It can be said that the car which travels first at 40 miles in 40 minutes and then 30 miles in 30 minutes is traveling at a constant speed.

The formula and procedure we will use to solve this exercise is:

v = x /t

Where:

Information about the problem:

Applying the velocity formula for the first data information of the travel, we get:

v₁ = x₁ /t₁

v₁ = 40 miles /40 min

v₁ = 1 mile/min

Applying the velocity formula for the second data information of the travel, we get:

v₂ = x₂ /t₂

v₂ = 30 miles /30 min

v₂ = 1 mile/min

As we notice v₁ = v₂ that means that the car is traveling with a constant speed during the trip

It is a physical quantity that indicates the displacement of a mobile per unit of time, it is expressed in units of distance per time, for example (miles/h, km/h).

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Explanation:

Potential energy = m * g * h    re-arrange to

PE/mg  = h     plug in the numbers

.06615 J / (9.81 m/s^2 * .0025 kg) = 2.7 m

The frequency of a sound wave affects the way our ears perceive sound:

1) A sound wave is created when an object vibrates and causes the molecules in the surrounding medium (such as air or water) to vibrate.

2) The frequency of a sound wave is the number of times that the object vibrates back and forth per second. This frequency is measured in hertz (Hz).

3) When a sound wave reaches our ears, it causes the eardrum to vibrate.

This vibration is then transmitted to the inner ear, where it is detected by hair cells in the cochlea.

4) The cochlea is a fluid-filled structure in the inner ear that contains hair cells that are sensitive to different frequencies of sound.

5) Hair cells in the cochlea that are closest to the entrance of the ear are most sensitive to high-frequency sounds, while hair cells at the other end of the cochlea are most sensitive to low-frequency sounds.

6) When a sound wave enters the ear, it causes the fluid in the cochlea to vibrate.

This vibration causes the hair cells that are sensitive to that frequency to bend.

7) The bending of the hair cells generates an electrical signal that is transmitted to the brain via the auditory nerve.

8) The brain then interprets the electrical signals from the hair cells as sound.

The frequency of the sound wave determines the pitch of the sound that we hear, with higher frequencies being perceived as high-pitched sounds and lower frequencies being perceived as low-pitched sounds.

In summary, the frequency of a sound wave determines which hair cells in the cochlea are activated, which in turn determines the pitch of the sound that we hear.

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The strength of the electric field between the plates is approximately ±2.43 × 10⁶ N/C.

To calculate the strength of the electric field between the two conducting plates, we can use the formula E = σ/ε0, where σ is the surface charge density, and ε0 is the electric constant (also known as the permittivity of free space).

Given that each plate has a charge of +/- 0.0000470 mc, and an area of 0.138 m^2, we can calculate the surface charge density as follows:

σ = Q/A
σ = (+/- 0.0000470 mc) / (0.138 m^2)
σ = +/- 0.000341 mC/m^2

Note that we convert the charge from milli-coulombs (mc) to coulombs (C) by dividing by 1000.

Now we can plug in this value of σ into the formula for the electric field:

E = σ/ε0
E = (+/- 0.000341 mC/m^2) / (8.85 x 10^-12 C^2/N*m^2)
E = (+/- 3.85 x 10^7 N/C)

Note that the electric field has units of newtons per coulomb (N/C). The sign of the electric field will depend on the direction of the charges on the plates, but the magnitude will be the same regardless of the sign.

To calculate the strength of the electric field between two conducting plates, you can use the formula E = Q/(A * ε₀), where E is the electric field strength, Q is the charge, A is the area of the plates, and ε₀ is the vacuum permittivity (8.85 × 10⁻¹² C²/N·m²).

Given:
Charge, Q = ±0.0000470 mC = ±47.0 × 10⁻⁶ C (converting milli to standard units)
Area, A = 0.138 m²

Now, we can plug these values into the formula:

E = (±47.0 × 10⁻⁶ C) / (0.138 m² * 8.85 × 10⁻¹² C²/N·m²)

E ≈ ±2.43 × 10⁶ N/C

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Answer:

An electric battery provides a current.. answer is continuous

Answer:

c. may be accompanied by the sound of explosively expanding hot air, called thunder.

Explanation:

Lightning is a discharge which is due to the reaction between oppositely charged charges in the clouds, or between clouds base and the Earth surface.

The motion of the cloud causes charging of clouds by friction, thus the reaction between opposite charges (jumping of charges from one cloud to another) in the cloud can lead to lightning. Also, oftentimes the bottom of a cloud is negatively charged so that this is attracted to the positive charge on the earth surface. Thus leading to a discharge called lightning.

Thus in the given question, the appropriate option is C. This implies that, lightning may be accompanied by the sound of explosively expanding hot air, called thunder.

The acceleration of the eraser is 169.19 m/s².

A body travelling in a circle has centripetal acceleration. Due to the fact that velocity is a vector quantity (i.e., it has both a magnitude and a direction), when a body travels in a circle, its direction is continually changing, which causes a change in velocity, which results in an acceleration.

Given that angular velocity of the eraser: ω = 127 rpm

= 126×2π/60 radian/second

= 13.2 radian/second.

radius of the circle: r = 0.974 meter.

Hence, its centripetal acceleration is = ω²r

= 13.2×13.2×0.974 m/s²

=169.19 m/s².

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As the distance between the plates increases, the electric field decreases, which leads to a decrease in the capacitance. In other words, increasing the distance between the plates makes it harder for the capacitor to store electrical energy.

Capacitance is the ability of a capacitor (two metal plates separated by a non-conducting material) to store electrical energy. If the distance between the two plates of a capacitor is increased, the capacitance will decrease.

Capacitance and electric current are related in that capacitance can store and release electrical energy, which can result in an electric current flowing through a circuit.

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707.25N is representative of forces in the ankle joint.

Which equation is used to determine force?

Force (N) = mass (kg) x acceleration (m/s2) is a concise expression for it. In light of this, an object with constant mass accelerates in direct proportion to the force exerted. Newton's second equation of motion provides the definition of the force formula: F = m a, where m is the mass of the object and an is its acceleration. This formula requires the use of SI units for force (in Newtons), mass (in kilograms), and acceleration (in meters per second squared).

Newton's second equation of motion provides the definition of the force formula: F = m a, where m is the mass of the object and an is its acceleration.

75 × 9.43 = 707.25N.

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The device that converts chemical energy into electrical energy is a battery.

On the other hand, the resistor is a passive element that is mainly used to limit the current in a circuit.

A resistor doesn't convert chemical energy into electrical energy.

Therefore, we can conclude that the given statement is false

(5a) The standard form of 0.00658 is 6.58 x 10⁻³.

(5b) 0.00658 to 2 significant figures is 0.01

(6) 0.2 as fraction is 1/5.

A standard form is a form of writing equations, numbers, or expressions using a certain set of rules.

It is also a method of writing figures used by scientists to write large numbers in a more precise or condensed form.

0.00658 can be written in standard form as follows;

0.00658 becomes 6.58 x 10⁻³

0.00658 to 2 significant figures is written as;

Writing 0.2 as fraction is done as shown below;

= (0.2) x (10 / 10)

= (0.2 x 10) / (10)

= 2 / 10

= 1 / 5

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Green turtles, like many other animals, use a process called magnetoreception to navigate long distances.

This process involves the detection of Earth's magnetic field by specialized cells called magnetoreceptors.

The Earth's magnetic field has both a strength and a direction. By detecting the direction of the magnetic field, the turtles can determine their position relative to the magnetic North Pole, which is located near the geographic North Pole but is not the same.

Specifically, the turtles use the inclination angle of the magnetic field lines to determine their latitude.

The inclination angle refers to the angle at which the magnetic field lines intersect with the Earth's surface.

This angle varies depending on the turtle's latitude. For example, at the equator, the inclination angle is nearly 0 degrees, whereas at the poles, the angle is almost 90 degrees.

Green turtles have magnetite crystals in their brains, which are sensitive to changes in the magnetic field.

As they swim, the turtles are able to sense the inclination angle of the magnetic field lines and use this information to determine their latitude.

By comparing this information with other cues, such as the position of the sun and the stars, the turtles are able to navigate accurately to their destination.

In summary, by detecting the direction of Earth's magnetic field, green turtles can determine their position relative to the magnetic North Pole, which allows them to determine their latitude or how far north or south they are from the equator.

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Answer:

hydraulic lift pump moves the lift piston out in a series of movements. and a hydraulic brake moves it out in one short break.

Answer:

13

Explanation:

The mass of an atom= number of protons + number of neutrons

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The Correct choice is D

Gene are special biomolecules that have all the required information of that organism, and has an instruction for making protein molecules.

Answer:

c

Explanation:

speed=distance÷time

40÷10=4

The color you see is "The color reflected by the object.". The correct option is C.

The correct option is C because the color we see is determined by the wavelengths of light that are reflected by an object. When light falls on an object, it interacts with its surface. The object absorbs certain wavelengths of light and reflects others. The color that we perceive is the color of light that is reflected by the object and reaches our eyes.

The explanation for why the other options are not true:

A. The color that mixes with white light: White light is a combination of all visible colors. When an object appears white, it means that it reflects all colors of light, rather than mixing with them.

B. The color that is absorbed by the object: The color that is absorbed by an object is not the color we see because the absorbed light energy is not reflected back to our eyes. It is the colors that are not absorbed that are reflected and contribute to the color we perceive.

D. The color that is not taken by black light: Black light refers to ultraviolet light that is not visible to the human eye. It does not directly relate to the color we see. The absence of light or the absence of reflection from an object in black light conditions may lead to a lack of color perception, but it does not define the color we see under normal lighting conditions.

Therefore, the correct answer is option C.

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The article explores the presence of magnetic materials, specifically magnetite, in the lagena of bird and fish otoliths. These magnetic materials may have a role in sensing magnetic fields and aiding in navigation and orientation.

The article titled "Magnetic Materials in Otoliths of Bird and Fish Lagena and Their Function" by Harada, Y., Taniguchi, M., Namatame, H., and Iida, A. was published in Acta Otolaryngol in 2001.

The study focuses on the presence of magnetic materials in the otoliths of birds and fish, specifically in a structure called the lagena. Otoliths are small calcium carbonate structures found in the inner ear of vertebrates, including birds and fish. They play a crucial role in sensing gravity and linear acceleration, which helps with maintaining balance and orientation.

The researchers investigated the magnetic properties of otoliths from various species of birds and fish. They discovered the presence of magnetite, a magnetic mineral, in the lagena of these organisms. Magnetite is known for its ability to align with the Earth's magnetic field.

The function of these magnetic materials in the otoliths is still not fully understood. However, it is suggested that they may contribute to the detection of magnetic fields, aiding in navigation and orientation. Further research is needed to explore the exact mechanism by which these magnetic materials in otoliths function.

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Answer:

b.false i think

Explanation:

i hope i am correct and helps you

Answer:false

Explanation:

I just did it

Answer:

D

Explanation:

LA FUERZA NETA ES LA FUERZA TOTAL DE EMPUJE MENOS EL PESO DEL

COHETE.

\(F_{y}\) = 700000 N(sen 90° - 20°) - 560000 N = 97785 N

The approximate vertical component of the net force that is propelling the rocket away from Earth is 112,000 N. Option B is correct.

The net force acting on the rocket is the sum of the thrust force and the weight of the rocket. The thrust force is pointing upwards at an angle of 20 degrees, and the weight of the rocket is pointing downwards. The thrust force is the force that is generated by the rocket engine. It is the force that propels the rocket upwards.

The weight of the rocket is the force of gravity acting on the rocket. It is the force that pulls the rocket downwards. The net force acting on the rocket is the sum of the thrust force and the weight of the rocket. If the net force is positive, the rocket will accelerate upwards. If the net force is negative, the rocket will accelerate downwards. If the net force is zero, the rocket will remain at rest.

net force = thrust force + weight

vertical component of net force = thrust force * cos(angle)

vertical component of net force = 700,000 N * cos(20 degrees) = 112,000 N. Option B is correct.

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the magnitude of the linear momentum of the electron just after it collides with the photon is (7.558 × 10⁻²⁶) kgm/s.

Let the photon's wavelength before it collides. =  λ

After a collision, the photon's wavelength equal = λ'

before a collision, the photon's frequency = f

After-collision photon frequency = f'

Pp = (h/) is the momentum of the photon prior to collision.

Prior to collision, the photon's momentum is given by Pp' = (h/'), where h is Planck's constant.

Let P represent the electron's post-collision momentum.

According to Compton's theory, the elastic collision between a photon and an electron abides by the principles of momentum and energy conservation.

The conservation of momentum

Momentum before collision = momentum after collision

Before momentum collision = Pp.

After-collision momentum = (Pp' + P)

Pₚ = (Pₚ' + P)

P =  (Pp - Pp') = (h/) - (h/') = h[(1/) - (1/')]

With the exception of the photon's after-collision wavelength, all of the variables needed to determine the electron's momentum are known.

We utilize the Compton's wavelength formula to determine this.

Compton established from the principle of conservation of mass and momentum that the wavelength of the electron following a collision i λ's given by

λ' - λ = (h/m₀c) (1 - cos θ)

where; h = Planck's constant = 6.63 × 10⁻³⁴ J.s

m₀ = mass of the electron = 9.11 × 10⁻³¹ kg

c = speed of light = 3.0 × 10⁸ m/s

θ = angle of scattering of the photons after collision = 60°; cos 60° = 0.5

λ = 0.102 nm = 1.02 × 10⁻¹⁰ m

λ' - λ = [(6.63 × 10⁻³⁴/(9.11 × 10⁻³¹ × 3.0 × 10⁸)] × 0.5

λ' - λ = 1.213 × 10⁻¹² m

λ' = λ + (1.213 × 10⁻¹²) = (1.02 × 10⁻¹⁰) + (1.213 × 10⁻¹²) = (1.032 × 10⁻¹²) m

P = (Pₚ - Pₚ') = (h/λ) - (h/λ') = h[(1/λ) - (1/λ')]

P = h[(1/λ) - (1/λ')] = (6.63 × 10⁻³⁴) [(1/(1.02 × 10⁻¹⁰)) - (1/(1.032 × 10⁻¹²))] = (6.63 × 10⁻³⁴) (113999088) = (7.558 × 10⁻²⁶) kgm/s

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The net momentum in the illustration is 34 kg m/s. Momentum is a vector quantity so the net momentum is the vector sum of momentum both the bodies.

A vector is a quantity in physics that has both a magnitude and a direction. Similar to absolute value, magnitude solely considers a quantity's distance from zero. Very frequently, the context of the problem provides the direction. While direction can sometimes refer to a particular axis in a Cartesian or spherical coordinate system, it more frequently refers to the cardinal directions.

Vectors can be combined, divided, multiplied, or even added to other vectors. Certain vector operations produce other vectors, whereas others produce scalars, or non-vectors. Scientists can use vectors, which are effective tools, to describe how the world functions. It would be hard to describe events in a three-dimensional environment without a sense of direction.

The term used to describe the state of motion of an object with a mass greater than zero is momentum. As a result, momentum can be applied to any moving object. Since velocity is regarded as a vector, momentum is also regarded as a vector. This implies that momentum has a discernible magnitude and direction, the direction of which is denoted by a vector or an arrow.

For instance, a ball with a certain mass moving at a specific speed has momentum. The moment the ball collides with a wall, it comes to rest and gives the wall its momentum. Momentum is always conserved as a result.

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(Part a) To determine the ratio R(L/2)/R(L), we need to understand how resistance is related to the frequency of the resistor piano.

Since the frequency doubles with every octave, the relationship between the frequency and the position on the resistor piano is as follows:

f(x) = f0 * 2^(x/L)

We want the first octave to occur at the midpoint, so we need to find the ratio of resistances at x = L/2 and x = L:

f(L/2) = f0 * 2^((L/2)/L) = f0 * 2^(1/2) = f0 * sqrt(2)

Since the frequency is related to the resistance through the microprocessor, we have:

f_out(x) = a * V_out(x) + B

V_out(x) = (f_out(x) - B) / a

V_out(L/2) / V_out(L) = (f0 * sqrt(2) - B) / (4f0 - B)

Since V_out(x) is directly proportional to the resistance, R(x), we can write:

R(L/2) / R(L) = (f0 * sqrt(2) - B) / (4f0 - B).

(Part b) The width of the paper in the region x = 0 to x = L/2 is larger than the width of the paper in the region x = L/2 to x = L.

This is because as the resistance increases, the frequency also increases, and since the frequency doubles every octave.

The change in resistance has a greater impact on the lower frequencies, requiring more width for the same change in frequency.

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Answer:

Attraction

Explanation:

Nucleus has a positive charge. Electron has a negative charge. Opposite charges attract and equal charges repel

The electrical interaction between the nucleus and the orbital electron is a force of attraction.

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Answer:

1 high electrical conductivity and high melting point

The general equation of simple harmonic motion is

y = a cos (? t )or y = a sin (? t )

but here y = a cos (? t )...because at t=0 amplitude is maximum

Here amplitude 'a '= 0.01 m

m = 0.3 kg

x = 0.02 m

Force constant k is given by,

k = mg / x = 0.3 x 9.8/ 0.02 = 147 N/m

The time period of oscillation is given by ,

T = 2 ? ?( m / k )

? = 2 ? / T = ? ( 147 / 0.3 )

? = 22.1

then y = (0.01m) cos (22.1 t )

In physics, a force is a power that can change the motion of an item. A force can purpose an object with mass to alternate its pace. Pressure also can be described intuitively as a push or a pull. A force has both value and path, making it a vector quantity.

A pressure is a push or a pull and it affects our each day lives because without force, people might not be capable of open and near stuff or lift up our arms or legs.

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Answer:  win it no bouncing

Explanation: