Which two options are forms of potential energy?
O A. Electrical energy
B. Elastic energy
O C. Magnetic energy
D. Light energy
O E. Sound energy

Sound waves in air produce areas of increased and decreased pressure, which are known as compressions and rarefactions, respectively.

Sound waves are longitudinal waves that require a medium to propagate, i.e. a substance in which they can travel. When sound waves propagate through the air, they generate areas of increased and decreased pressure, referred to as compressions and rarefactions, respectively. Sound waves can be detected by the ear or by a recording device such as a microphone, and they can be amplified and processed by electronic equipment to generate music, speech, and other forms of sound.

The frequency, amplitude, and duration of a sound wave determine its pitch, loudness, and temporal characteristics, respectively. Sound waves are utilized in many areas of our lives, from communication to entertainment, from medicine to industry, and from science to technology. They are essential to our perception of the world and to the functioning of many devices and systems.

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Answer:

Applied Force.

Gravitational Force.

Normal Force.

Frictional Force.

Air Resistance Force.

Tension Force.

Spring Force.

Explanation:

:)

Answer:

The work done in a unit of time is C. Power.

Explanation:

Hope this helps

Just before the collision, the kinetic energy of both planets is zero.

To find the kinetic energy of each planet just before they collide, we can use the formula for kinetic energy:

K = (1/2) * m * v²

Where K is the kinetic energy, m is the mass of the planet, and v is the velocity of the planet.

First, we need to find the velocities of the planets. Since the planets collide, their final velocities will be the same. We can use the principle of conservation of momentum to find this common final velocity.

The conservation of momentum equation is given by:

m1 * v1initial + m2 * v2initial = (m1 + m2) * vfinal

Where m1 and m2 are the masses of the planets, v1initial and v2initial are their initial velocities, and vfinal is their final velocity.

Since the planets start from rest (v1initial = v2initial = 0), the equation simplifies to:

0 + 0 = (m1 + m2) * vfinal

Solving for vfinal:

vfinal = 0

Therefore, the final velocity of the planets just before they collide is zero.

Now we can calculate the kinetic energy of each planet:

For planet 1:

K1 = (1/2) * m1 * v1²

K1 = (1/2) * (2.20 * \(10^{24}\) kg) * (0 m/s)²

K1 = 0 J

For planet 2:

K2 = (1/2) * m2 * v2²

K2 = (1/2) * (7.00 * \(10^{24}\) kg) * (0 m/s)²

K2 = 0 J

Therefore, just before the collision, the kinetic energy of both planets is zero.

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Answer:

KE =1/2mv^2

Explanation:

KE depends upon movement of the body

Answer:

The velocity of the blades is 88.185 m/s.

Explanation:

Given;

length of the blade, r = 80 m

angular speed, ω = 1 rev per 5.7 seconds

The velocity of the blades is calculated by applying the following circular motion equation that relates linear velocity (V) and angular speed (ω);

\(V = \omega r\\\\V = (\frac{1 \ rev}{5.7 \ s} \times \frac{2 \pi \ rad}{ 1 \ rev} )(80 \ m)\\\\V = 88.185 \ m/s\)

Therefore, the velocity of the blades is 88.185 m/s.

Answer:

177.87

Explanation:

acellus

The potential difference between the points A and B is 177.9 V.

Potential difference between any two points is the amount of work required to move a unit positive charge along any path from point A to point B without accelerating is referred to as the electric field.

Here,

The charge on the particle, q = +0.00235 C

The change in electric potential energy, ΔU = 0.418 J

The potential difference can be defined as the electric potential energy per unit charge.

Therefore, the potential difference between A and B,

V = ΔU/q

V = 0.418/0.00235

V = 177.9 Volt

Hence,

The potential difference between the points A and B is 177.9 V.

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saitama is the strongest

F = qv × B is the total magnetic force on the charge. forces that are up (towards i2) are positive and forces that are down (towards i1) are negative.

Two things are in mind. How much charge is in each object, how much motion there is in each, and how far away they are all affect how much magnetic force there is between them. Depending on the relative motion directions of the charge in each situation, the force's direction changes.

Typically, the process of determining the magnetic force is framed in terms of a given quantity of charge (qqq) moving at a constant speed (vvv) in a uniform magnetic field (BBB). Because it is frequently possible to determine the magnetic field based on the distance to a known current, we can still utilize this method even if we don't directly know the magnetic field's magnitude.

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Answer:

statement not given greater mass has greater potential energy at same height

The buoyant force is greater on the block of wood that floats on top of the pond compared to the block of lead at the bottom. This is because the buoyant force is equal to the weight of the fluid displaced by the submerged object, and the block of wood displaces more fluid due to its larger volume.

According to Archimedes' principle, an object submerged in a fluid experiences an upward buoyant force equal to the weight of the fluid it displaces. In this scenario, the block of wood floating on top of the pond displaces a larger volume of water compared to the block of lead at the bottom. As a result, the buoyant force acting on the block of wood is greater since it displaces more fluid. The density of lead is significantly higher than that of water, which causes the lead block to sink. Despite the weight difference between the blocks, the buoyant force is determined by the displaced volume of fluid rather than the weight of the objects themselves.

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The type of investigation is she is conducting by determining the period in which it is from is referred to as the geologic age.

This is defined as the time period in which the fossil was present on the earth and can be done using various methods such as radiometric dating methods etc. The age gotten will help scientists to ascertain different information about the organism in this context.

Fossil on the other hand which is the remains of organisms preserved in the earth crust can be studied to find out the differences in the features of organisms and how they were able to adapt to the changing environmental conditions.

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The complete question is;

The gravitational force between two objects is ______ proportional to the products of the masses and _______ proportional to the square of the distance between them.

Answer:

First dash is directly

Second dash is inversely

Explanation:

From Newton's law of gravitation the gravitational force is given by the equation;

F = GMm/r²

Where:

F is gravitational force

M and m are two masses representing the two objects

r is the distance between them

G = universal gravitational constant

Thus, if we are to write it in proportion format, we will have;

F ∝ Mm/r²

From this proportion relationship, we can see that the Gravitational force is directly proportional to the products of the two masses and inversely proportional to the square of the distance between them.

Answer:

Explanation:

The gravitational force between two objects is directly  proportional to the products of the masses and  inversely proportional to the square of the distance between them.

Answer:

range of wavelength and frequencies is the answer

Explanation:

the defintion is:

the range of wavelengths or frequencies over which electromagnetic radiation extends.

and also

It is the most complete range of all types of radiation that has both electric & magnetic fields and travels in waves.

Making electromagnetic spectrum a electromagnetic spectrum

Range of wavelength and frequencies being the answer

The mass of 1.2 x 10²⁴ molecules of F₂ is 75.62 g.

The question can be calculated by using Avogadro's number and the molar mass of F₂.
First, we need to find the number of moles of F₂ in 1.2 x 10²⁴ molecules. We can do this by dividing the number of molecules by Avogadro's number (6.02 x 10²³ molecules/mol):

moles of F₂ = 1.2 x 10²⁴/6.02 x 10²³

moles of F₂ = 1.99 mol

Next, we need to find the molar mass of F₂. The atomic mass of fluorine is 19.00g/mol, so the molar mass of F₂ is:

Molar mass of F₂ = 2 x 19.00 g/mol

Molar mass of F₂ = 38.00 g/mol

Finally, we can calculate the mass of 1.2 x 10²⁴ molecules of F₂ by multiplying the number of moles by the molar mass:
mass of F₂ = 1.99 x 38.00

mass of F₂ = 75.62 g
Therefore, the mass of FF₂ is 75.62 g.

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Answer:

6 cm

Explanation:

When 4 cm from the mirror the image is 4 cm behind the mirror.  

When the mirror is moved 1 cm towards the man the man is now 3 cm from the mirror and his image is also 3 cm from the mirror.

Thus the distance between the man and his image is now 3+3 = 6 cm.

Even if an object is at rest, it can still experience balanced forces, where the forces acting on it cancel each other out. In this case, the object will remain at rest. Yes, there can be forces acting on an object even if it is at rest. No, there doesn't need to be an unbalanced force for a moving object.

According to Newton's first law of motion, an object at rest or in uniform motion will remain in that state unless acted upon by an external force.

On the other hand, for a moving object, there must be an unbalanced force acting on it to cause a change in its velocity or direction. If the forces acting on a moving object are balanced, the object will continue to move at a constant velocity without any acceleration.

In summary, forces can act on objects at rest, but they need to be balanced for the object to remain at rest. For moving objects, an unbalanced force is required to cause a change in motion.

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Answer:

P = \(P_{atm} + \rho \ g \ h\)

Explanation:

For this exercise we use that the pressure at a given level is the same, so we set a level on both sides of the pressure gauge, just the point where the liquid is on the system side, with a pressure (P)

           P = \(P_{atm} + \rho \ g \ h\)

where \(P_{atm}\) is the atmospheric pressure in pascals, ρ the density of the liquid, g is related to gravity and h the height of the liquid from the marked reference.

Air travels faster over the crests than the throughs because of this factor in bernoulli's principle contributes to the increased height.

That is the tenet of Bernoulli. The combined mechanical energy of a moving fluid, which consists of the gravitational potential energy of elevation, the energy related to fluid pressure, and the kinetic energy of fluid motion, remains constant. The wind is typically partially blocked by the wave troughs, which allows air to go over them faster and maintain a lower pressure than below. The idea that water accelerates up as pressure decreases and slows down as pressure increases comes from Bernoulli's principle. The same scenario plays out here, so the higher pressure in the troughs drives water into even higher Crests.The idea of energy conservation can be used to derive Bernoulli's principle. This asserts that in a steady flow, the total amount of energy present in a fluid will be constant at all places along the streamline.

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Answer:

(1) The relationship between the altitude height, 'h', and the orbital speed, \(v_{orbit}\), of the satellite is an inverse relationship

\(v_{orbit}\) = 1/(h + R)

(2) The height of the satellite, is approximately 24,442 meters

(3) Please find attached the drawing showing the two lines that indicate the direction of the gravitational force on the satellites created with Microsoft Visio

Explanation:

(1) From the given data table, as the altitude increases, the orbital velocity decreases, therefore, the relationship between altitude, 'h', and orbital velocity, '\(v_{orbit}\)', is an inverse relationship which can be expressed as follows;

\(v_{orbit} = \sqrt{\dfrac{G \cdot M}{r} }\)

Where;

G = The universal gravitational constant

M = The mass of the Earth, or planet about which the satellite orbits

r = The distance between the center of the planet and the satellite = h + R

R = The radius of the planet

When \(v_{orbit}\) = 27,500, h = r - R = 1000

We have;

\(v_{orbit}\)² ∝ 1/r

\(v_{orbit}\)² = k/r = k/(R+ h)

When, \(v_{orbit}\)² = 27,500² = 756,250,000

r = h + R = 1000 + R

∴ 756,250,000 = k/(1000 + R)

(1,000 + R) × 756,250,000  = k

When, \(v_{orbit}\)² = 18,000² = 324,000,000

r = h + R = 10,000 + R

∴ 324,000,000 = k/(10,000 + R)

324,000,000 = ((1,000 + R) × 756,250,000)/(10,000 + R)

∴ 324,000,000×(10,000 + R) = (1,000 + R) × 756,250,000

R × (756,250,000 - 324,000,000) = 324,000,000×10,000 - 1,000 × 756,250,000

R = (324,000,000×10,000 - 1,000 × 756,250,000)/(756,250,000 - 324,000,000) = 5746.09600925

R = 5,746.09600925

k = (1,000 + R) × 756,250,000  = (1,000 + 5,746.09600925) × 756,250,000 = 5.1017351 × 10¹²

k = 5.1017351 × 10¹²

(2) When, \(v_{orbit}\) = 13,000 m/s, we have;

13,000² = 5.1017351 × 10¹²/(5,746.09600925 + h)

∴ 5,746.09600925 + h = 5.1017351 × 10^(12)/(13,000²) = 30187.7816568

h = 30187.7816568 - 5,746.09600925 = 24,441.6856476

The height of the satellite, h ≈ 24,442 meters

(3) Please find attached the drawing showing the two lines indicating the direction of the force of gravity exerts on the satellites created with Microsoft Visio.

Answer:

12kg is greater because 12kg is 12000g

Answer:

12kg is the answer cause if it wasn't 12 kg then 1,400 g would not be the answer so you would pick 12kg as the answer.

The correct answer is: c) E0y. The electric field E = E0j points in the positive y-direction. The electric potential difference between two points in an electric field is given by the line integral of the electric field between the points.

In this case, the potential difference V between two points (x1, y1) and (x2, y2) can be written as:

V = ∫ E · dr

where the integral is taken along the path connecting the two points. If we take the reference potential V = 0 at y = 0, then the potential at position (x, y) can be found by integrating the electric field along the path connecting (x, 0) and (x, y):

V(x, y) = ∫_0^y E0j · dj = E0y

So, the potential at position (x, y) in the electric field E = E0j is given by:

V(x, y) = E0y

So, the correct answer is: c) E0y

The electric field E = E0j is a constant electric field that points in the positive y-direction. The electric potential at any point (x, y) in the field can be found by integrating the electric field along the path connecting the reference point (x, 0) and the point of interest (x, y). In this case, the electric potential is proportional to the displacement in the y-direction, and the proportionality constant is E0, the magnitude of the electric field.

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The acceleration due to gravity on the new planet is 1.59 m/s², the acceleration due to gravity on a planet is calculated using the following formula g = G * M / R²

where:

In this case, we have:

M = 1.300 x 10^22 kg

R = 738.400 mi = 1,190,885 km

We need to convert the radius from miles to kilometers, so we use the following conversion factor:

1 mi = 1.609 km

This gives us a radius of:

R = 738.400 mi * 1.609 km/mi = 1,190,885 km

Now we can plug all of the values into the formula to calculate the acceleration due to gravity:

g = 6.674x10^-11 N·m²/kg² * 1.300 x 10^22 kg / (1,190,885 km)²

g = 1.59 m/s²

Therefore, the acceleration due to gravity on the new planet is 1.59 m/s².

This means that if you drop an object on the surface of the planet, it will accelerate towards the center of the planet at a rate of 1.59 meters per second squared.

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Answer:

B. The volume of an object is the same as the

weight of that object.

Explanation:

Every thing else is right and that one is wrong.

Answer:

B. The volume of an object is the same as the

weight of that object.

Explanation:

i hope it helps

The rock was launched in the upward direction with an initial velocity of 8.58 m/s.The speed of the rock 4.5 seconds after launch is  35.52 m/s.

Given:

Time after launch (t) = 2.1 s

Rising rate (v) = 12 m/s

(a) By using the equation of motion v = u + at

where,

v denotes the final velocity, u initial velocity, a is the acceleration, and t is the time.

v = u + at

12= u + (9.8) × 2.1 s

u = 12 - (9.8 m/s² × 2.1 s)

u = 12 - 20.58

u = -8.58 m/s

The negative sign indicates that the rock was launched in the upward direction with an initial velocity of 8.58 m/s.

(b) To calculate the speed 4.5 seconds after launch,

v = u + at

v = -8.58 + (9.8) × 4.5 s

v = 35.52 m/s

The speed of the rock 4.5 seconds after launch is  35.52 m/s.

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Color, hardness, malleability, soluble, electrical conductivity, weight, melting point, & boiling temperature are examples of the physical qualities of matter.

By definitions, the reciprocal is electrical resistivity, or S/m (siemens per meter) as SI units, is the measurement unit for electrical conductivity. The conversion chart between SI units with regular units is displayed in Table 1. The quantity of the SI unit was divided by 100 to determine the worth of the traditional unit.

For conducting electricity, metallic materials such as copper, iron, silver, aluminum, and silver work best. Via the electrodes in some kind of a standardised aqueous solution at a specific temperature, the electrical conductivity of a substance is measured.

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Answer:

a)  Q = 1.24 10⁻² pC,  b) Q = 8.68 10⁻² pC

Explanation:

a) the capacitance is defined

          C = \(\frac{Q}{\Delta V} = \epsilon_o \frac{A}{d}\)

           Q = ε₀  \(\frac{A}{d} \ \Delta V\)

let's calculate

           Q = 8.85 10⁻¹²  0.07 \(\frac{A}{d}\)

           Q = 0.6195 10⁻¹²  \(\frac{A}{d}\)

where a is the area of ​​the membrane

            A = d L

            Q = 0.6195 10⁻¹² Ll

            Q = 0.6195 10⁻¹² 0.02

             Q = 1.24 10⁻¹⁰ C

             Q = 1.24 10⁻² pC

B) the membrane is full of fat with k = 7

            C = \(\frac{Q}{\Delta V} = k \epsilon_o \ \frac{A}{d}\)

            Q = k ε₀  \(\frac{A}{d} \ \Delta V\)

             Q = k Q₀

            Q = 7   1.24 10⁻²

            Q = 8.68 10⁻² pC