describe completely the state of polarization of each of the following waves:
E = iE_0sin[2π(z/λ-vt] - jE_0sin(2π(z/λ-vt)]
E = iE_0sin[wt - kz] + jE_0sin(wt-kz-π/4]
E = iE_0cos[wt - kz] + jE_0cos(wt-kz+π/4]

Answer:C

Explanation:

You should just have to do the math and will get you C

The mass of the struck body is equal to 1/8th the mass of the first body.

In an elastic collision, both momentum and kinetic energy are conserved. The momentum of the system before the collision is equal to the momentum of the system after the collision.

Let's consider the mass of the struck body m2. The initial momentum of the first body before the collision is:

p1 = m1 * v1

where m1 is the mass of the first body (2.0 kg) and v1 is its initial velocity (v1 = v).

After the collision, the final momentum of the two bodies is:

p_total = m1 * v1 / 4 + m2 * v2

where v2 is the velocity of the second body after the collision.

Since the second body was initially at rest, its velocity before the collision was zero. The conservation of momentum equation can be written as:

m1 * v1 = m1 * v1 / 4 + m2 * v2

By solving m2, we get:

m2 = m1 * v1 / (4 + v1)

m2 = 2.0 kg * v1 / (4 + v1)

Since the velocity of the first body after the collision is 1/4th of its original speed, v1 / 4 = v1. Substituting this into the equation for m2, we get:

m2 = 2.0 kg * v1 / (4 + v1)

m2 = 2.0 kg * v1 / (4 + v1)

m2 = 2.0 kg * v1 / 8

m2 = 2.0 kg * v1 / 8

So, the mass of the struck body is equal to 1/8th the mass of the first body.

To learn more about the conservation of momentum:

https://brainly.com/question/7538238

#SPJ4

Answer:

-35 \(m/s^2\)

Explanation:

Deceleration is the complete opposite of acceleration and is calculated by adding a negative sign to the formula for finding acceleration.

Since acceleration is calculated by diving the change in velocity with time, deceleration will become:

 Deceleration =   -Δv/t, where Δv = change in velocity and t = time

In this case, Δv = 70 m/s and t = 2 s, hence;

Deceleration = -70/2 = -35 \(m/s^2\)

The deceleration is 35 \(m/s^2\).

Answer:

Solid objects will deform when adequate loads are applied to them; if the material is elastic, the object will return to its initial shape and size after removal. This is in contrast to plasticity, in which the object fails to do so and instead remains in its deformed state.

Explanation:

Answer:

It is false

Explanation:

because when it like a rolling ball it can deform no matter what unlesss you throw it at the ground really hard then it breaks but a soft or sometimes metal yeah it can deform but not all things solid deform.

Answer:

satisfaction, enjoyment and fair play

Answer:

It is important to be a good sport, and even if you do not win still be happy about being able to participate, and congratulate the person that did win.

Explanation:

Hope this helped Bye!

Answer:14C

Explanation:

Biomass, Fossil Fuels, Hydroelectric, Solar Energy

Answer: 1. Spinning a magnet inside a coil. Electromagnetic induction IOW

2. Photo electricity

3. Thermo electricity

Answer:

Explanation:

Assuming the horizontal axis is in seconds, and the vertical axis is meters.

1)  v(average) = (p₁ - p₀) / (t₁ - t₀)

    v(average) = (7.5 - 20) / (15 - 7) = -1.5625 m/s

2)  6 s ≤ t ≤ 9 s,   section B

              t = 12 s,  

              t = 18 s,

    21 s ≤ t ≤ 26 s  section F

maybe at t = 0 s and t = 29 s, but we're not sure as the position is unknown beyond those limits.

3) at t = 3 the position was 0 or at the origin of the reference frame

4) v(25) = 0 m/s

the slope of the plot is zero at this location on a position in time graph.

Answer:

\(\frac{n}{t} = 30\ photons/s\)

Explanation:

The radiated power can be given in terms of the wavelength as follows:

\(Rasiated\ Power = \frac{nE}{t} = \frac{nhc}{\lambda t}\)

where,

Radiated Power = 1.2 x 10⁻¹⁷ W

n = no. of photons = ?

h = plank's constant = 6.625 x 10⁻³⁴ J.s

c = speed of light = 3 x 10⁸ m/s

λ = wavelength = 500 nm = 5 x 10⁻⁷ m

t = time

Therefore,

\(1.2\ x\ 10^{-17}\ W = \frac{n(6.625\ x\ 10^{-34}\ J.s)(3\ x\ 10^8\ m/s)}{(5\ x\ 10^{-7}\ m)(t) }\\\\\frac{n}{t} = \frac{1.2\ x\ 10^{-17}\ W}{3.975\ x\ 10^{-19}\ J}\\\\\frac{n}{t} = 30\ photons/s\)

Answer:

16m/s

Explanation:

Mv=mv

5000x8=2500x v

V=5000x8/2500

V=40000/2500

= 16m/s

The density of a cube is 2 g/cm3. whose mass is 2 g and volume is 1 cm.

Density may be defined as a type of physical quantity that significantly involves the measurement of quantity or mass per unit of volume in a particular substance. It is generally the quantity per unit of space.

It determines the area occupied by any three-dimensional object to thing. While representing the density, the symbol most often used for density is ρ although the Latin letter D can also be used.

According to the question,

The mass of a cube = 2.0 g.

The volume of a cube = 1.00 cm.

The density of a cube = ?

The formula for calculating density is as follows:

                     = 2.0 g/1.00 cm. = 2 g/cm3.

Therefore, the density of a cube is 2 g/cm3. whose mass is 2 g and volume is 1 cm.

To learn more about Density, refer to the link:

https://brainly.com/question/1354972

#SPJ2

Answer:

b) is not true - the movement and travel of a wave packet is governed by the "group" velocity of the packet not the phase velocity

The movement and travel of a wave packet are governed by the "group" velocity of the packet, not the phase velocity, so option B is not a true statement.

A collection of waves with roughly the same momentum is referred to as a wave packet. Localization of particles can be achieved by combining waves into wave packets. The area where the particle is most likely to be discovered is indicated by the wave packet's envelope. This region spreads at the speed of a classical particle.

According to Heisenberg's principle, some uncertainty in the mo­men­tum must be permitted in order to gain some localization of the position of a paragraph. Therefore, you must assume that the initial quantum space wave function is nonzero for at least a brief range of various quantum values. A wave packet is a combination of constituent waves of this kind.

The movement and travel of a wave packet are governed by the "group" velocity of the packet, not the phase velocity.

To know more about wave packets:

https://brainly.com/question/13354635

#SPJ12

the maximum height reached by ball is 0.45m.

Given :-

spring constant ( k ) = 400N/m

mass of ball = 1kg

spring compressed ( x )= 0.150m

we calculate height by using mechanical energy conservation According to the principle of conservation of mechanical energy, The total mechanical energy of a system is conserved .

Mechanical energy is the sum of the potential and kinetic energies in a system :-

K₀ + U₀ = K + U    (eq 1)                    

where,

           K₀ = initial kinetic energy = 0

           U₀ = initial potential energy = \(\frac{1}{2} kx^{2}\)

           K = final kinetic energy when it reaches at its max height =0

           U = final potential energy when it reaches at its max height =mgh

The elastic potential energy is = \(\frac{1}{2} kx^{2}\)

                                                     =  0.5 × 400 × 0.15 × 0.15

                                                     = 4.5 J.  

putting value in eq 1 :-

                                    0 + 4.5 = 0 + mgh

                                     4.5 = 10h

                                      h=0.45m

Thus from the above conclusion we can say that the maximum height reached by the ball is 0.45m.

Learn more about the energy conservation here : https://brainly.com/question/20626677

#SPJ4

Answer:

280

Explanation:

I used the equation for momentum, p=mv

70 x 4 = 280

Answer:

B

Explanation:

Chlorine institute

16+1=17

CI has 17 in the bottom.

Answer:C

Explanation:

The free-body diagram of an apple falling through the air has weight of the apple pointing downwards and the air-resistance on the apple acting upwards.

When an object falls from up to the ground, the object falls under in the influence of acceleration due to gravity.

The vertical component of the force on the apple as it falls trough the air is given as;

∑Fy = 0

Fₙ - W = 0

Fₙ = W

where;

The free-body diagram of the apple is represented as follows;

                                         ↑ Fₙ

                                         Ο

                                         ↓ W

Thus, the free-body diagram of an apple falling through the air has weight of the apple pointing downwards and the air-resistance on the apple acting upwards.

Learn more here:https://brainly.com/question/18770265

The Poynting vector for the given electric and magnetic fields is S = 33.12^i - 57.84^j + 2.56^k (units: W/m²).To determine the Poynting vector, we can use the formula:

S = E x B

where S is the Poynting vector, E is the electric field vector, and B is the magnetic field vector.

Given:

E→ = (80.0^i + 32.0^j - 64.0^k) N/C

B→ = (0.200^i + 0.0800^j + 0.290^k) µT

Let's convert the magnetic field from µT to T by multiplying it by 10^-6.

B→ = (0.200^i + 0.0800^j + 0.290^k) T

Now we can calculate the cross product of E→ and B→ to find the Poynting vector:

S = E x B

Expanding the cross product, we get:

S = (E_y * B_z - E_z * B_y) i + (E_z * B_x - E_x * B_z) j + (E_x * B_y - E_y * B_x) k

Plugging in the given values, we have:

S = (32.0 * 0.290 - (-64.0) * 0.0800) i + ((-64.0) * 0.200 - 80.0 * 0.290) j + (80.0 * 0.0800 - 32.0 * 0.200) k

Simplifying the calculations, we find:

S = 33.12 i + (-57.84) j + 2.56 k

Therefore, the Poynting vector for the given electric and magnetic fields is S = 33.12^i - 57.84^j + 2.56^k (units: W/m²).

To learn more about Poynting vector click here: brainly.com/question/19530841

#SPJ11

The element that forms at the core of a red giant star is helium. When a star has exhausted all the hydrogen in its core, it begins to fuse helium atoms together to form heavier elements such as carbon and oxygen.

This fusion process releases energy, causing the outer layers of the star to expand and cool, resulting in the star becoming a red giant. As the helium is depleted in the core, the star will continue to fuse heavier elements until it reaches iron, which cannot be fused without consuming more energy than it releases. At this point, the star will undergo a supernova explosion, leaving behind a remnant such as a neutron star or black hole. Thus, the formation of helium at the core of a red giant star plays a crucial role in the evolution of stars and the creation of heavy elements in the universe.

To learn more about energy here

https://brainly.com/question/1932868

#SPJ11

The slope increases or decreases downstream, are less common and do not accurately represent the typical longitudinal profile of a streambed.

The sketch that best represents the longitudinal profile of the slope of a streambed is option A. In this case, the slope is constant and steep downstream.

This means that the streambed maintains a consistent, steep gradient as it progresses in the downstream direction. This profile is commonly associated with youthful streams or those in mountainous regions, where the force of gravity allows the water to flow rapidly down steep slopes.

Option B, where the slope is constant and shallow downstream, is more characteristic of mature or old-age streams.

Options C and D, where the slope increases or decreases downstream, are less common and do not accurately represent the typical longitudinal profile of a streambed.

Learn more about longitudinal profile

brainly.com/question/30832689

#SPJ11

Answer:

Wire length, current value, and potential difference certainly belong to the continuous category.

Perhaps, eye color would be the 4'th value because of the continuity involved

Answer:

6.3m/s

Explanation:

Given parameters:

Mass of the ball  = 0.5kg

Height  = 2m

Unknown:

Velocity when the ball hits the ground  = ?

Solution:

Since the potential  energy is transformed into kinetic energy;

            P.E  = K.E

              mgh  = \(\frac{1}{2}\) m v²

     cancelling m;

               gh  =  \(\frac{1}{2}\) v²

                v² = 2gh

                v  = √2gh

Insert the parameters and solve;

               v  = √2gh  = √ 2 x 9.8 x 2  = 6.3m/s

The force of friction between the losing player’s feet and the grass is 692 N.

The force of friction between the losing player’s feet and the grass is calculated by applying Newton's second law of motion as shown below.

F(net) = ma

where;

F - Ff = ma

where;

800 - Ff = 90 x 1.2

800 - Ff = 108

Ff = 800 - 108

Ff = 692 N

Learn more about force of friction here: https://brainly.com/question/4618599

#SPJ1

Answer:

how long the athlete can sustain the activity

Explanation:

"Endurance" tests your body's ability to carry on a specific activity for a particular period of time. This is often confused with "stamina," which tests the body's ability to do a specific activity without getting exhausted.

An example of an endurance training for the muscles is by doing 5 sets of body weight squats with repetitions, let's say 25. Depending on one's endurance, the repetition may be increased. Another example is by doing 5 sets of lunges with 15 repetitions on each leg (a total of 30 repetitions).

Answer:

2N₂(g) + 2O₂(g) ----> 2NO(g)

Explanation:

Gaseous nitrogen and gaseous oxygen reacts in a molar volume ratio of 1 : 1 to produce nitrogen (ii) oxide.

In the reaction, two molecules of nitrogen gas combines with two molecules of oxygen gas in the cylinder to form two molecules of nitrogen (ii) oxide. The equation of the reaction is given below:

2N₂(g) + 2O₂(g) ----> 2NO(g)

Nitrogen (ii) oxide is formed naturally during lightning bolts. The heat released the lightning flashes causes the nitrogen and oxygen in air to combine to form nitrogen (ii) oxide. The nitrogen (ii) oxide formed however, quickly reacts with more oxygen to form nitrogen(ii) oxide.

Nitrogen (ii) oxide is a colorless, poisonous gas. It is slightly denser than air and almost insoluble in water. it is also neutral to litmus.

The balanced chemical equation for the reaction between nitrogen and oxygen is:

2N₂(g) + 2O₂(g) —> 4NO(g)

The equation between nitrogen and oxygen can be written as follow:

N₂(g) + O₂(g) —> NO(g)

The above equation can be balance as illustrated below:

There are 2 atoms of O on the left side and 1 atom on the right side. It can be balance by writing 2 before NO as shown below:

N₂(g) + O₂(g) —> 2NO(g)

Multiply the equation by 2, we have:

The equation is balanced!

Learn more: https://brainly.com/question/2399130

Answer:

B.

Explanation:

B. is correct because every time usually when a hurricane hits it causes flooding causing multiple homes to be ruined. It is a known fact that usually hurricanes start close or in along with tornadoes, the water, meaning once they hit land they have some water to flood that land with.

C. is absolutely false hurricanes have VERY strong wind gusts.

D. is absolutely wrong they do alter landscapes by ripping trees and plants and houses out of the ground making the landscapes look different.

A. is wrong they tend to deposit and remove sediment evenly.

~ LadyBrain

Answer:

B

Explanation:

Answer:

In a series circuit, the equivalent resistance is the algebraic sum of the resistances. The current through the circuit can be found from Ohm's law and is equal to the voltage divided by the equivalent resistance. The potential drop across each resistor can be found using Ohm's law.