Which is the graph of the polar equation r = 4 cos3 theta

Interstellar dust scatters and absorbs light from stars, causing them to appear redder and dimmer than they would without dust.

Interstellar dust is made up of tiny particles, ranging from a few molecules to a few micrometers in size, that are found throughout the interstellar medium. When light from a star passes through the dust, it can be scattered in many different directions or absorbed by the dust particles.

This causes the starlight to appear dimmer and redder than it would be without dust. The reddening occurs because dust scatters blue light more efficiently than red light, causing blue light to be preferentially absorbed.

The overall effect of interstellar dust is known as extinction, which can make it difficult for astronomers to observe and study distant stars and galaxies.

For more questions like Interstellar click the link below:

https://brainly.com/question/10622750

#SPJ11

Hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm maybe

Answer:

I've heard of many different names of isotopes of carbon, and they're Carbon-14, Deuterium, Hydrogen-1, Oxygen-18, boron-11, Nitrogen-14, and Neon-20.

Answer:This could be in the form of using fewer energy services or using devices that require less energy.

Explanation:

The wavelength of light is an essential factor in determining the interference pattern's properties in a double-slit experiment, and the distance between the slits and the screen also plays a role in determining the pattern's characteristics.

We need to consider the concept of interference patterns in double-slit experiments. When two lasers shine on a double slit, they produce interference patterns on a screen a distance 4.20m away. The separation distance between the slits (d) and the wavelength of the lasers (λ) determine the interference pattern's characteristics. In this case, laser 1 has a wavelength of d/20, and laser 2 has a wavelength of d/15.
As the wavelength of laser 2 is longer than that of laser 1, the interference pattern produced by laser 2 will have a larger distance between the fringes. This distance is proportional to the wavelength, so the larger wavelength of laser 2 will cause the fringes to be spaced further apart. Additionally, the intensity of the interference pattern will be higher for laser 1 as it has a shorter wavelength.
Overall, the difference in the wavelength of the two lasers will result in different interference patterns on the screen. The wavelength of light is an essential factor in determining the interference pattern's properties in a double-slit experiment, and the distance between the slits and the screen also plays a role in determining the pattern's characteristics.

To know more about Double-slit experiments visit:
https://brainly.com/question/28108126
#SPJ11

The scenario described involves the physics concept of double-slit interference. Two lasers with different wavelengths are creating separate interference patterns on a screen. The positions of the interference spots can be calculated using the equation d sin θ = mλ.

The physics concept at play here is called double-slit interference, a fundamental part of wave-particle duality and quantum mechanics. In the double-slit experiment, light from a laser gets shone through two narrow adjacent slits, creating two coherent light sources. These light waves interfere constructively and destructively, creating an interference pattern on a screen.

In this scenario, we have two lasers with different wavelengths (d/20 and d/15), shining through the two slits. These two lasers will create separate interference patterns due to their different wavelengths. The distance from the slits to the screen is given as 4.20m.

The positions of the dark (destructive interference) and bright spots (constructive interference) on the screen can be calculated using the formula: d sin θ = mλ, where 'd' is the distance between the slits, 'θ' is the angle from the central maximum, 'm' is the order of the interference, and 'λ' is the wavelength of the light. By using this equation, we can predict the interference pattern for each laser.

https://brainly.com/question/32229312

The magnitude\(F_{P}\)  of the force you need to exert on the crate to make it continue to slide along the floor with constant velocity is  437.5N.

The Normal Force (in a horizontal plane, it is comparable to the mass by gravity) and the Kinetic Coefficient of Friction must be multiplied in order to obtain the Friction Force, which must be used in order to solve this problem.

Given that the sentence does not specify the value of the coefficient of friction, I will ascribe a value of 0.5 between the crate and the ground. If a different value has been specified for this coefficient, the below equation will simply need to be changed to reflect it.

\(F_{P}\) = µK N

µK = Friction coefficient

Normal Force is N.

Replacing,

\(F_{P}\) = 0.5 × 875

\(F_{P}\) = 437.5N.

Consequently, the crate is subject to a friction force of 437.5N.

To know more about friction force visit:

https://brainly.com/question/1714663

#SPJ4

Complete question is "Suppose you have to move a heavy crate of weight 875 {\rm N} by sliding it along a horizontal concrete floor. You push the crate to the right with a horizontal force of magnitude 300 {\rm N}, but friction prevents the crate from sliding. Now assume that the crate is sliding along the floor with constant velocity. What is the magnitude F_p of the force you need to exert on the crate to make it continue to slide along the floor with constant velocity?"

Out of 150 approved mortgage applications, a random sample may have variable or interest-only mortgages.

we are given that a random sample of 150 approved mortgage applications is either variable or interest-only mortgages. A variable mortgage, also known as an adjustable-rate mortgage (ARM), is a type of mortgage in which the interest rate fluctuates based on market conditions. An interest-only mortgage is a type of mortgage in which the borrower only pays interest on the loan for a certain period of time before beginning to make principal payments.To determine what percentage of the sample is variable or interest-only mortgages, we would need more information on the breakdown of the sample. However, we know that these are two different types of mortgages that borrowers can choose from when applying for a mortgage.

A home loan application is a report submitted to a bank when you apply for a home loan to buy land. The application is extensive and includes information about the borrower's employment history, financial situation, and the property being considered for purchase, among other things.

Know more about mortgage applications, here:

https://brainly.com/question/28222316

#SPJ11

Overall, star clusters provide a unique opportunity to study the properties and evolution of stars in a controlled and relatively simple environment, which can help us better understand the processes that govern the life cycles of stars.

Star clusters are almost ideal "laboratories" for stellar studies for several reasons:

Stellar populations: Star clusters are made up of stars that formed around the same time and from the same cloud of gas and dust. This means that the stars in a cluster have similar ages and compositions, which makes it easier to study their properties and evolution.

Distance: Star clusters are relatively close to Earth, which makes them easier to observe and study in detail. This is because the stars in a cluster are all at roughly the same distance from us, which eliminates distance-related uncertainties and allows us to accurately measure their properties.

Large numbers: Star clusters contain a large number of stars packed into a relatively small region of space. This means that we can observe and study many stars at once, which allows us to gather statistical data on the properties of stars and their evolution.

Interactions: Star clusters are dynamic environments, and the gravitational interactions between stars can affect their evolution. Studying star clusters allows us to observe and understand the effects of interactions between stars, such as binary star systems, stellar collisions, and gravitational interactions between stars.

To know more about star cluster,

https://brainly.com/question/30899528

#SPJ11

Based on the information provided, the type of boundary that exists between the Indian and Eurasian Plates is a convergent boundary.

Convergent boundaries occur when two tectonic plates move towards each other. In the case of the Indian and Eurasian Plates, they are converging, resulting in the formation of the Himalayan mountain range. This type of boundary is also known as a collision boundary because the two plates collide and their continental crusts are forced together.

At the convergent boundary between the Indian and Eurasian Plates, the collision and compression of the crust lead to intense geological activity, including the uplift and folding of rocks, creating the towering peaks of the Himalayas. Additionally, the collision between these plates has also caused seismic activity, making the region prone to earthquakes.

Learn more about continental crusts here:

brainly.com/question/7072276

#SPJ11

Answer:

Blue eye-color gene

According to the solving using gravitational law the earths  its orbital period = 5.6 hours.

Every particle in the universe is drawn to every other component with a force that is directly related to the product between their masses and inversely proportional to their separation from one another, according to Newton's Law of Universal Gravitation. As a result, the general gravitation equation takes shape. F ∝ m 1 m 2 r 2.

Newton's first law asserts that an object at rest will stay at rest and also an object in motion will keep moving at a fixed pace unless they are both subject to a net external force.

The strength of attraction between two particles can be expressed as follows, according to Newton's gravitational law:

F = \(G\frac{M_1M_2}{R^2}\)

speed of satellite = v = 5000 m/s

mass of earth = M = 6 × 10²⁴ kg

orbital period = T = ?

∑F = ma

\(G\frac{mm_2}{R^2}\) = M\(\frac{v^2}{r}\)

Substituting the value we get:

T = 2πG\(\frac{M}{v^3}\)

T = 2π ×  6.67 × 10⁻¹¹ \(\frac{ 6 * 10^2^4}{5000^3}\)

T = 20116s

T = 5.6 hours.

According to the solving the earths  its orbital period = 5.6 hours.

To know more about  Newton's gravitational law visit:

https://brainly.com/question/9373839

#SPJ4

Explanation:

Hope this helps,

Juno entered a polar orbit of Jupiter on July 5th 2016 UTC, to begin a scientific investigation of the planet. After completing its mission, Juno will be intentionally deorbited into Jupiters atmosphere. Junos mission is to measure Jupiters composition, gravitational field, magnetic field, and polar magnetosphere.

Answer:

1

3

4

5

or

a

c

d

e

Explanation:

Answer:

F = 8840.7 N

Explanation:

The parameters given are:

Length L = 3 metres

Extension e = 3 × 3 = 9m

Force constant K = 982.3 Newton per metre​

From Hook's law,

Provided the elastic limit is not extended, the extension is directly proportional to the force applied.

That is,

F = Ke

Substitute all the parameters into the formula

F = 982.3 × 9

F = 8840.7 N

Given what we know, as with all substances, the particles in the bowl of hot soup will slow down as they cool after being poured.

Therefore, the motion of the particles of the soup decrease or slows down as the soup cools due to the loss of energy they are experiencing. The soup radiates heat energy into the room or plate, causing the particles to lose energy and slow down.

To learn more about heat energy visit:

https://brainly.com/question/1495272?referrer=searchResults

Answer:

Salt crystals are hard and brittle because they are made up of atoms that combine by ionic bonding.

Explanation:

Answer:

A proton has a positive charge :)

A neutron has no charge because it is neutral :)

Have a great day!!

Please rate and mark brainliest!!

A proton is positively charged while a neutron has no charge at all.

When you travel too far from the source, the signal fades is  one of main difficulties radio transmission suffers from.

What does radio wave transmission entail?

A transmitter produces a radio wave, which a receiver then picks up. A radio transmitter and receiver may both transmit and receive energy into and from space using an antenna. Typically, transmitters and receivers are made to function across a specific band of frequencies.

Radio has particular challenges, just like any other media. These include the lack of a visual element, crowd disruption, limited audience consideration, restricted exploratory information, and mess. Light is a tiny wave and cannot pass through a wall, whereas radio waves can since they are larger than the size of atoms.

To learn more about radio waves :

https://brainly.com/question/29787341

#SPJ4

Answer:

5.5Ω

Explanation:

The circuit diagram shown is a parallel arrangement. To solve this problem for the equivalent resistance,

  R1  = 10Ω

  R2  = 20Ω

 R3 = 30Ω  

For circuits in parallel, equivalent resistance is ;

   \(\frac{1}{Rt}\)   = \(\frac{1}{R1} + \frac{1}{R2} + \frac{1}{R3}\)  

 Now insert the parameters and solve;

    \(\frac{1}{Rt}\)  = \(\frac{1}{10} + \frac{1}{20} + \frac{1}{30}\)  

    \(\frac{1}{Rt}\)   = \(\frac{6 + 3 + 2}{60}\)  

    \(\frac{1}{Rt}\)   = \(\frac{11}{60}\)  

    Rt  = 5.5Ω

To determine how much power is needed for a fan to do 500J of work in 4 seconds, we need to use the formula for power which is: Power = Work / Time

Substituting the given values, we have: Power = 500J / 4s. Simplifying this expression, we get: Power = 125 Watts. Therefore, the fan would need 125 Watts of power to do 500J of work in 4 seconds. It is important to note that power is a measure of how quickly work is done, and it is calculated by dividing the amount of work done by the time it takes to do that work. In this case, the fan needs to work at a rate of 125 Watts to accomplish the given task. To calculate the power required for a fan to do 500 J of work in 4 s, we can use the formula for power: P = W/t, where P represents power, W represents work, and t represents time. In this case, W = 500 J and t = 4 s. Using the formula, we get: P = 500 J / 4 s. P = 125 W. So, it takes 125 watts of power for a fan to do 500 J of work in 4 seconds.

Learn more about work here :

https://brainly.com/question/18094932

#SPJ11

The soccer ball is 38/5 or 7.6 meters high after 2 seconds.

The equation you've given is a quadratic function that models the height of the soccer ball over time, considering gravitational pull.

To find the height of the ball after 2 seconds, we substitute t = 2 into the equation:

h(t) = -4.9t² + 13.1t + 1.

Therefore,

h(2) = -4.9*(2)² + 13.12 + 1

= -4.94 + 26.2 + 1

= -19.6 + 26.2 + 1

= 7.6 meters.

So, the soccer ball is 7.6 meters high after 2 seconds.

Read more on height here:https://brainly.com/question/1739912

#SPJ1

The height, h meters, of a soccer ball kicked directly upward can be modeled by the equation h(t)=-4.9t2 + 13.1t+1, where t is the time, in seconds, after the ball was kicked.

How high is the ball after 2 seconds?

Explanation:

9.

Given parameters:

     Net force on object  = 200N

      Acceleration  = 500m/s²

Unknown:

Mass of the object = ?

Solution:

According to newton's second law of motion, force is the product of mass and acceleration;

      force  = mass x acceleration

Insert the parameters and solve;

         200  = mass x 500

             mass  = \(\frac{200}{500}\)   = 0.4kg

10:

Given parameters:

           Mass of dummy = 75kg

             Net force on dummy  = 825N

Unknown:

Dummy's deceleration = ?

 Solution:

Deceleration is the negative form of acceleration;

    Force  = mass x acceleration

       Acceleration  = \(\frac{force }{mass}\)  

       Acceleration  = \(\frac{825}{75}\) = 11m/s²

The deceleration is -11m/s²

Answer:

MKS stands for Meter, Kilogram and second. In this system of unit mass is given in Kilogram, length in meter and time in second. ... CGS system stands for Centimeter- Gram- Second system. In CGS system, length is measured in centimeters mass is measured in grams and time is in seconds.

The angular acceleration of the motor is 94.25 rad/s². It makes 15 revolutions at this time. The length of the belt it winds in this time is 47.13 m.

The radius of the pulley, r = 0.5 m
The angular speed of the pulley, ω₁ = 30 rev/s.
The pulley slows down uniformly in the 2.0s.
Time is taken for the pulley to slow down, t = 2.0 s.
Angular acceleration of the motor can be calculated using the formula:
α = (ω₂ - ω₁)/ t where ω₂ = final angular speed of the pulley. Given that the pulley slows down uniformly, the final angular speed of the pulley can be calculated: ω₂ = ω₁ + αt.
Substituting the given values, we get:
ω₂ = 30 rev/s - α × 2.0 s
⇒ ω₂ = 30 - 2α rev/s.
Substituting this value in the above formula, we get:
α = (30 - (30 - 2α)) / 2.0 α = 15 rev/s² = 15 × 2π rad/s² = 30π rad/s².
Therefore, the angular acceleration of the motor is 30π rad/s² or 94.25 rad/s² (approx.)

The final angular speed of the pulley is zero since it slows down and stops. Hence, using the formula: ω₂ = ω1 + αt.
We get 0 = 30 rev/s - 7.5 × 2.0 s

⇒ 0 = 30 - 15 rev/s = 15 rev/s = 15 × 2π rad/s.
Several revolutions made by the pulley in this time = n₂ - n₁ where n₁ = an initial number of revolutions, n₂ = final number of revolutions n₁ = 0 (Since initial angular speed is given and not an initial number of revolutions).

n₂ = ω₂ × t ⇒ n₂ = 15 rev.
Therefore, the number of revolutions it makes at this time is 15 revolutions.
Length of belt = 2πr (n₂ - n₁).
Substituting the values, we get:
Length of the belt = 2 × π × 0.5m (15 - 0)= 15π m = 47.13 m (approx.).
Therefore, the length of the belt it winds in this time is 47.13 m (approx.)

Learn more about angular acceleration here:

https://brainly.com/question/30238727

#SPJ11

Answer:

Micro Waves

Explanation:

Microwaves in particular are used by cell phone calls for wireless communication. A portion of radio waves with higher frequency makes up these microwaves. The cellphone's antenna transforms speech data into microwaves during a call, and these microwaves travel through the atmosphere to the closest cell tower. The tower takes in and sends the microwaves to the mobile device of the intended receiver. The gadget receives the microwaves and transforms them back into electrical signals so the recipient can hear the voice data. By employing the strength of microwaves, this technology provides wireless communication and permits mobile users to communicate from anywhere inside the cellular network's service area.

The type of waves that are used to make and receive cellphone calls are radio waves.

Radio waves are a type of electromagnetic radiation that has a long wavelength and low frequency. These waves are used for communication purposes because they are able to travel long distances without losing their signal strength. When a person makes a call on their cellphone, their voice is converted into an electrical signal that is sent through the cellphone's antenna as a radio wave. This radio wave is then picked up by the nearest cell tower, which receives the signal and sends it through the network to the person on the other end of the call. The process is reversed when the other person responds, with their voice being converted into a radio wave that is sent back through the network to the caller's phone.

In summary, radio waves are the type of waves that are used to make and receive cellphone calls due to their ability to travel long distances without losing signal strength.

To know more about radio waves, visit:

https://brainly.com/question/13989450

#SPJ11

Answer:

5.89 m/s

Explanation:

Given:

Δy = 1.77 m

v₀ = 0 m/s

a = 9.8 m/s²

Find: v

v² = v₀² + 2aΔy

v² = (0 m/s)² + 2 (9.8 m/s²) (1.77 m)

v = 5.89 m/s

Answer:

blue and purple light

Explanation:

Light waves have very, very short wavelengths. Red light waves have wavelengths around 700 nanometers (nm), while blue and purple light have even shorter waves with wavelengths around 400 or 500 nm.

Answer:

0.00025 kilometers

Explanation:

divide the length value by 1e+6

Answer:

250 mm = 0.00025 km.

Explanation:

250 mm equal 0.00025 km

Conversion details

To convert mm to km use the following formula:

1 mm equals 0.000001 km

So, to convert 250 mm to km, multiply 0.000001 by 250 i.e.,

250 mm = 0.000001 * 250 km = 0.00025 km

(hope this helps can i plz have brainlist :D hehe)