What is TRUE about a capitalist society?

Answer:

3 * 10⁸ m/s

Explanation:

Simply divide the total distance by total time to get average speed.

= (6000 * 10⁶) / 20

= 3 * 10⁸ m/

The figure below showing electrons moving along an electric current towards and away from the light bulb with arrows pointing right and left in both directions, indicates that the current is alternating.

What is Electric Current?

It is the rate at which electric charges move through a circuit, measured in amperes (A). Electric current is caused by the movement of electrons, which carry a negative charge, and it flows from a region of higher electric potential to a region of lower electric potential.

Electric current can be produced by a variety of sources, including batteries, generators, and power plants. The amount of current that flows through a circuit depends on the voltage, or electric potential difference, and the resistance of the circuit. Ohm's law describes the relationship between these variables: current is equal to voltage divided by resistance (I = V/R).

In an alternating current (AC), the flow of electric charge changes direction periodically, typically 50 or 60 times per second (50 or 60 Hertz). The direction of the current reverses periodically, causing the electrons to move back and forth, as shown in the figure. In a direct current (DC), the flow of electric charge is always in one direction, and the electrons move in one direction only.

Learn more about Electric current from given link

https://brainly.com/question/1100341

#SPJ1

Answer:

Oxygen is an element that can be a solid, liquid or gas depending on its temperature and pressure. In the atmosphere it is found as a gas, more specifically, a diatomic gas. This means that two oxygen atoms are connected together in a covalent double bond.

Answer:

Explanation:

For answer please see the image attached .

The mirror reflects the light while the lens allows the light to pass through it. The lens and mirror are positioned parallel and opposite each other.

The basic difference between the lens and mirror is that mirror reflects the light while the lens allows the light to pass through it. Both are optical instruments but their laws are different.

The lens and mirror are positioned parallel and opposite each other. From the above conditions, it is observed that first, the light gets passed through the lens.

After it passes through the light got reflected. As the light reflected the mirror it again passes through the lens and converts the distributed or parallel lights into a single beam of light.

The single beam of light is known as the spotlight.

Such types of design for a spotlight use a lens and a mirror, combined with a gas-discharge lamp, to project a powerful parallel beam of light.

Hence the lens and mirror are positioned parallel and opposite to each other.

To learn more about the lens and mirror refer to the link;

https://brainly.com/question/13300307

The index of refraction of the material is 1.556,the angle of the reflected ray is also 33.9°,the angle of the refracted ray is approximately 22.3° and the refracted ray when it exits the material and enters air is 56.4°.

a) The index of refraction (n) of a material can be determined using the formula:

n = 1 / sin(qc)

where qc is the critical angle.

Given qc = 40.1°, we can calculate the index of refraction:

n = 1 / sin(40.1°)

n ≈ 1 / 0.6428

n ≈ 1.556

Therefore, the index of refraction of the material is approximately 1.556.

b) When a light ray strikes a surface at an angle of incidence (θi), the angle of reflection (θr) can be calculated using the law of reflection, which states that the angle of incidence is equal to the angle of reflection.

θr = θi

Given θi = 33.9°, the angle of the reflected ray is also 33.9°.

c) The angle of the refracted ray (θr') can be calculated using Snell's law, which relates the angles of incidence and refraction to the indices of refraction of the two media:

n1 * sin(θi) = n2 * sin(θr')

where n1 is the index of refraction of the initial medium (air) and n2 is the index of refraction of the material.

In this case, n1 = 1 (since the ray is coming from air) and n2 ≈ 1.556 (from part a). We are given θi = 33.9°. Plugging in these values, we can solve for θr':

1 * sin(33.9°) = 1.556 * sin(θr')

θr' ≈ arcsin(sin(33.9°) / 1.556)

Using a calculator, θr' ≈ 22.3°

Therefore, the angle of the refracted ray is approximately 22.3°.

d) When the light ray exits the material and enters air, we need to calculate the angle of the refracted ray (θr'') again using Snell's law. The indices of refraction will be reversed compared to part c, so n1 = 1.556 and n2 = 1.

Using θi = 33.9°, we can solve for θr'':

1.556 * sin(33.9°) = 1 * sin(θr'')

θr'' ≈ arcsin(1.556 * sin(33.9°) / 1)

Using a calculator, θr'' ≈ 56.4°

Therefore, the angle of the refracted ray when it exits the material and enters air is approximately 56.4°.

For more such questions on refraction,click on

https://brainly.com/question/27932095

#SPJ11    

Answer:

5 cm

Explanation:

When a thing gains electrons in electricity, it'll become negatively charged. The collection of phenomena known as electricity is related to the existence and mobility of matter that possesses an electric charge.

The movement of electricity generation or charge is known as electricity. It is a sustainable energy source, meaning that we obtain it through the conversion of main energy sources like coal, fossil fuels, oil, nuclear power, and many other essential minerals.

In accordance with the U.S. Energy Management Administration, coal, nuclear power, and natural gas made up the majority of the country's electrical generation in 2020. Sources of renewable energy like wind, electricity, solar, biomass, wind, and groundwater are also used to generate electricity.

To know more about electricity visit:

https://brainly.com/question/1922668

#SPJ4

A Car is travelling at a speed of 60 km/h and then  accelerates to the velocity 85 km/h than acceleration in 5 sec is given by 18000 km/h² .

Acceleration of body is defined as rate of change of the velocity with respect to the time. Acceleration is a vector quantity it have magnitude as well as direction.

Acceleration =  (final velocity - initial velocity )/ time

Acceleration =  change in velocity / change in time

Given that in the question that the velocity changes from 60 km/h to 85 km/h in 5 sec =( 0.00138 h ) then the acceleration of the car is given as,

Acceleration of the car  = (60 - 85)/0.00138

Acceleration of the car  = 18000 km/h²

Acceleration of the car travelling with the velocity 60 km/h to final the velocity 85 km/h in time 5 sec is given by 18000 km/h².

To learn more about the acceleration refer to the link brainly.com/question/12550364

#SPJ1

Answer:

135

Explanation:

15grams of water + 120 grams of beaker=135 grams together

Answer:

15 grams + 120 grams =135 grams all together

Hi!

Explanation:

A set of wires (called snares) is stretched across a drum head at the bottom of the drum. The vibration of the bottom drum head against the snares produces the drum's characteristic "cracking" tone. Claps, snares, and other "sharp" or "bright" sounds are often used in similar ways in drum patterns.

The skin of the drum vibrates and makes the confetti dance. As the air molecules vibrate against each other, sound waves are formed and the sound of the drums can be heard. Fran explains that the pitch of a drum depends on how tight its skin is. ... Hit a drum hard and this makes big vibrations and a loud sound.

Answer:

a moderate base

Explanation:

Milk of magnesia is popularly known as magnesium hydroxide. Magnesium hydroxide Mg(OH)₂ is used as an anti-acid in toothpaste and medically as a mild laxative.

Its pH values range between 10- 11 on the pH scale.

A solution with pH value of 7 is neutral(i.e. neither acidic nor basic.

A pH value which is less than 7 is acidic while a pH value greater than 7 is basic.

For a pH value between 12 -14 on the pH scale is said to be a strong base.

Since Milk of magnesia Mg(OH)₂ pH values ranges between 10- 11 on the pH scale, it is known to be moderately basic.

No, there is no excitation observed in the circuit after the battery is turned off.

This is because the battery is the source of energy and when it is turned off, the circuit no longer has a source of energy. The circuit is then unable to store or release any energy, so no excitation is observed.

When the battery is on, the electrons in the circuit can move freely and the current can flow, resulting in an excited state. But when the battery is off, the electrons are stuck in their current positions, so no movement or excitation is observed.

Know more about Electrons  here

https://brainly.com/question/12001116#

#SPJ11

The spring compresses up to 0.046 m which is equal to 4.6 cm.

The given problem requires us to determine the extent to which the putty block system compresses the spring. Let’s start with a brief introduction to the Putty block system and the Spring. The Putty block system is a mass that is dropped from a height of h onto a spring. The spring is compressed by a distance x before coming to rest and then returns to its initial position. Spring is defined as a resilient device that can be compressed or extended by an applied force and can store energy in the process. The potential energy stored in a spring is equal to the product of half of the spring constant and the square of the displacement produced in it. The formula to calculate the amount of compression in the spring is given by; x = mgh / k

where; x = amount of compression in the spring

m = mass of the putty block system                        

g = acceleration due to gravity h = height from which the block was dropped

k = spring constant Substituting the values given,

we have; x = 0.34 x 9.81 x 0.15 / 37x = 0.046 m

The spring compresses up to 0.046 m which is equal to 4.6 cm.

The Putty block system is a simple experiment that helps understand the properties of a spring. The putty block system compresses the spring by 4.6 cm when the mass is dropped from a height of 15 cm. It is important to note that the extent to which the spring is compressed depends on the mass of the object dropped and the height from which it is dropped. Additionally, the amount of compression in the spring can be used to determine the spring constant.

To know more about distance visit:

brainly.com/question/15172156

#SPJ11

To determine the diameter of the piston rod for a cylinder with a diameter of 1.8 m and a steam pressure difference of 0.3 N/mm², given a rod length of 2.5 m, a modulus of elasticity of 210 kN/mm², and a factor of safety of 6.

In this scenario, we can use the formula for stress to calculate the diameter of the piston rod. The stress (σ) is equal to the force (F) divided by the area (A). The force is given by the pressure difference (ΔP) multiplied by the cross-sectional area (A) of the piston.

The area can be calculated using the formula for the area of a circle, which is πr², where r is the radius of the piston. By substituting the given values, we can solve for the radius (r) and subsequently the diameter (2r) of the piston rod.

To ensure the safety of the rod, a factor of safety is applied. The factor of safety determines the margin by which the rod can withstand the applied stress without failure. In this case, the factor of safety is given as 6. Therefore, the calculated diameter of the piston rod needs to be multiplied by the factor of safety to provide the desired level of safety.

To learn more about stress (σ), click here: brainly.com/question/20972597

#SPJ11

Answer:

6 m/s^2

Explanation:

F = ma

60N = (10 kg)a

a = 6m/s^2

Potential energy is the energy that is possible to be realized, based on position, while  the kinetic energy is the energy that is present and due to motion

The location where the potential energy is converted into kinetic energy is the point (2)

Reason:

The mechanical energy, M.E., of the roller coaster, is given as follows;

M.E. = P.E. + K.E.

Where;

P.E. = The potential energy = m·g·h

K.E. = The kinetic energy = \(\dfrac{1}{2} \cdot m \cdot v^2\)

Where;

v = The velocity

h = The height

m = The mass

g = Acceleration due to gravity

∴ M.E. = m·g·h + \(\dfrac{1}{2} \cdot m \cdot v^2\)

The mechanical energy, M.E., is constant, therefore;

When the height, h = 0, we have, the kinetic energy is maximum, given that the mechanical energy is entirely kinetic energy

Therefore;

The locations where potential energy is converted to kinetic energy are lowest locations, where the height, h, is minimum, such as the point (2)

Learn more about potential and kinetic energy here:

https://brainly.com/question/18963960

Answer:

I would have to be A

Explanation:

negative numbers wouldn't work here and 68 wouldn't be fast enough to stop it because the asteroid is much heavier than the rocket

Force is a vector, as such we know that the force required to crack a nut is the resultant of the individual forces applied form all sides of the nut.

The term force is used to describe that which causes a change in the position of an object. Now the question is incomplete but I will try to help you the much I can.

Recall that force is a vector quantity. Hence the magnitude of the force required to crack a nut is the resultant of the individual forces applied form all sides of the nut.

Learn more about force: https://brainly.com/question/26115859

Answer:

Density =mass/volume 20/10=2

The density of a substance that has a mass of \(20 g\) and a volume of \(10 mL\) is \(2 g/cm^{3}\).

Density of substance is defined as its mass per unit volume. Density gives information about how tightly the substance is packed together. The formula for density is

\(d =\frac{m}{V}\)

Where,

\(d =\) density

\(m =\) mass

\(V =\) volume

Unit of density is grams per cubic centimetre.

One of the most common uses of density is in how different materials interact when mixed together.

Specific Gravity is the ratio of the substance's density to the density of water. An object having specific gravity less than one will float in water, while a specific gravity greater than one will sink.

Given

\(m = 20g\)

\(V = 10 mL= 10 cm^{3}\)

The density of substance is

\(d =\frac{m}{V}\\d =\frac{20}{10}\\d = 2 g/cm^{3}\)

Hence, The density of a substance that has a mass of \(20 g\) and a volume of \(10 mL\) is \(2 g/cm^{3}\).

To learn more about Density here

https://brainly.com/question/15164682

#SPJ2

Answer:

Shadows are formed when an opaque object or material is placed in the path of rays of light. The opaque material does not let the light pass through it. The light rays that go past the edges of the material make an outline for the shadow

Explanation:

The impedance Z in an AC circuit is related to the voltage V and the current I by the equation Z = V/I.

In an AC circuit, the impedance Z represents the overall opposition to the flow of alternating current. It combines the resistance, capacitance, and inductance of the circuit elements. The impedance is defined as the ratio of the voltage V across the circuit to the current I flowing through it, given by the equation Z = V/I.

In the given scenario, we have a circuit with a current of (0.6 + 4.0i) amps and an unknown impedance Z. To calculate the corresponding voltage, we can use the equation V = I * Z, where V is the voltage and I is the current. By substituting the given values, we can find the complex voltage V.

Learn more about Voltage

brainly.com/question/32002804

#SPJ11

The kinetic energy of the truck is approximately 1,964,180 Joules. The kinetic energy of the car is approximately 250,003 Joules.

To calculate the kinetic energy of each vehicle, use the formula:

Kinetic Energy (KE) = 1/2 × mass × velocity²

Given the mass and velocity of each vehicle, plug in the values and calculate the kinetic energy.

For the truck:

Mass = 6,000 kg

Velocity = 92 km/h

= 92,000 m/3600 s

≈ 25.56 m/s

Using the formula:

KE = 1/2 × 6,000 kg × (25.56 m/s)²

Calculating the result:

KE = 1/2 × 6,000 kg × 655.3936 m²/s²

KE ≈ 1,964,180 Joules

Therefore, the kinetic energy of the truck is approximately 1,964,180 Joules.

For the car:

Mass = 1,200 kg

Velocity = 100 km/h

= 100,000 m/3600 s

≈ 27.78 m/s

Using the formula:

KE = 1/2 × 1,200 kg × (27.78 m/s)²

Calculating the result:

KE = 1/2 × 1,200 kg × 771.6884 m²/s²

KE ≈ 250,003 Joules

Therefore, the kinetic energy of the car is approximately 250,003 Joules.

Find out more on kinetic energy here: https://brainly.com/question/25959744

#SPJ1

The wavefunction ψ(x) = Axe^(-αx) satisfies the one-dimensional time independent Schrödinger equation with the potential term V(x) = -xq^2, where q = √(αℏ^2/m).

To show that the wavefunction ψ(x) = Axe^(-αx) satisfies the one-dimensional time independent Schrödinger equation, we need to verify if it satisfies the equation:

(-ℏ^2/2m) * (d^2ψ/dx^2) + V(x)ψ = Eψ

where V(x) = -xq^2. Let's substitute the wavefunction and potential term into the equation and simplify:

(-ℏ^2/2m) * (d^2(Axe^(-αx))/dx^2) + (-xq^2)(Axe^(-αx)) = E(Axe^(-αx))

Differentiating ψ(x) twice, we get:

(-ℏ^2/2m) * [(Ae^(-αx))(α^2x - 2α + 2α^2x^2 - 2αx)] + (-xq^2)(Axe^(-αx)) = E(Axe^(-αx))

Simplifying further, we have:

(Ae^(-αx)) * [(-ℏ^2/2m)(α^2x - 2α + 2α^2x^2 - 2αx) - xq^2] = E(Axe^(-αx))

Expanding and rearranging terms, we obtain:

(Ae^(-αx)) * [-ℏ^2α^2x + ℏ^2(2α - α^2x - 2α^2x^2) - 2mαx^2 - mα^2x^3 + xq^2] = E(Axe^(-αx))

Comparing the coefficients of similar powers of x on both sides, we can equate the terms and obtain a relationship between q and α:

-ℏ^2α^2 = Eq^2   ... (1)

By substituting α = ℏ^2/(2mq^2) into equation (1), we can verify that the relationship holds. Therefore, the wavefunction satisfies the one-dimensional time independent Schrödinger equation with the given potential term.

Learn more about Schrödinger equation

brainly.com/question/31642338

#SPJ11

Speed:-

\(\\ \tt\hookrightarrow \dfrac{Distance}{Time}\)

\(\\ \tt\hookrightarrow \dfrac{15}{1}=15km/h\)

Velocity:-

\(\\ \tt\hookrightarrow Displacement/Time \)

\(\\ \tt\hookrightarrow 0/1=0km/h\)

For someone with a negative Weber slope for weight detection, it would be easier to tell the difference between 20 pounds and 21 pounds.

The Weber's Law states that the just noticeable difference (JND) between two stimuli is proportional to the magnitude of the stimuli. A negative Weber slope indicates that the JND decreases as the magnitude of the stimuli increases. In this case, as the weight increases, the person's ability to discriminate between the weights becomes easier.

Therefore, option C, telling the difference between 20 pounds and 21 pounds, would be easier for someone with a negative Weber slope for weight detection.

To learn more about weight, Click here: brainly.com/question/33492657

#SPJ11

Answer:

I Believe the answer is

\(D. \: \: atmosphere\)

Explanation:

I hope how this helps!

we get the distance traveled by the proton as,distance traveled = vt = vp(t)distance traveled = (vp(2d/vp)) = (2d(vp/√(2qVp/m)))Thus, by the time the electron strikes the positive plate, the proton would have traveled 1.13 cm.

Given that the plate separation of a charged capacitor is 0.8 m. A proton and an electron are released from rest at the midpoint between the plates.The acceleration experienced by each particle is given as, a = F/mwhere m is the mass of the particle and F is the force experienced by the particle. The force experienced by each particle is given as F = qEwhere q is the charge of the particle and E is the electric field experienced by the particle.The electric field between the plates of the capacitor is given by

E = V/d, where V is the potential difference across the plates and d is the distance between the plates.The potential difference across the plates is given as V = Ed = (Vf - Vi)

where Vf is the final potential of the positive plate, Vi is the initial potential of the negative plate.Substituting the value of electric field,

we get V = Ed = (Vf - Vi)By the law of conservation of energy, the kinetic energy gained by the electron is equal to the potential energy lost by the capacitor.

Kinetic energy gained by electron = 1/2 mv² = qVqV = 1/2 mv²The potential energy lost by the capacitor = 1/2 CV² = qVqV = 1/2 CV²qV = 1/2 mv² ⇒ v = √(2qV/m)

By the time the electron strikes the positive plate, the time taken = t = (2d/v)where d is the plate separationSubstituting the values, we get the time taken as,t = (2d/v) = (2 × 0.8)/ √(2qV/m)

Similarly, the time taken by the proton is given by,t = (2d/vp)where vp is the velocity of the protonvp = √(2qVp/m)The distance traveled by the proton by the time the electron strikes the positive plate is given by,

distance traveled = vt = vp(t)

to know more about energy, visit

https://brainly.com/question/13881533

#SPJ11