Plssss help I need good grade!!!! Plssss and thank u

Answer:

the result is an increase in energy, this is the so-called CONSTRUCTIVE INTERFERENCE.

resulting energy is zero, this is the so-called DESTRUCTIVE INTERFERENCE

Explanation:

When we have an interference process the optical paths of the two rays are added, when the incident rays arrive in phase the result is an increase in energy, this is the so-called CONSTRUCTIVE INTERFERENCE.

When the rays arrive out of phase a half wavelength the resulting energy is zero, this is the so-called DESTRUCTIVE INTERFERENCE

Answer:

its constructive and destructive

Explanation:

i got it right

Answer:

It demonstrates that the narrator is surrounded by nature.

Explanation:

Walt Whitman's "Crossing the Brooklyn Ferry" is a free verse poem written about the speaker's return trip on a ferry. He talks about his daily commute on the Brooklyn ferry, like the other commuters, and how they all share the same experience.

The given lines are from the very first stanza of the poem. The speaker repeats "face-to-face" when talking about nature. He sees the "flood-tide below" and the "clouds" high in the sky. This repetition demonstrates that he is surrounded by nature, amidst the throng of people around him. This shows the speaker's attitude of seeing the beauty of nature in any way he can, despite the bustle of commuting from Brooklyn to Manhattan.

Thus, the correct answer is the second option.

Answer:

B

Explanation:

edge 2023

Answer:

7.14285714286

Explanation:

Answer:

They will run parallel to each other as the none of a straight pole cannot be bent in such a way where one side can turn without the other turning.

Answer:

Explanation:

The different types of radiation are defined by the the amount of energy found in the photons. Radio waves have photons with low energies, microwave photons have a little more energy than radio waves, infrared photons have still more, then visible, ultraviolet, X-rays, and, the most energetic of all, gamma-rays

Answer:

a)  m*g*hi = m*g*hf [tex]_{f}[/tex]

         h[tex]_{i}[/tex] = h

b)  ratio = 1.22

c) the potential energy is converted to both rotational kinetic energy and translational kinetic energy

Explanation:

For a frictionless system : initial energy = final energy

i.e. Ei = Ef

a) Prove

Total Initial energy for First cylinder ( Ei ) = m*g*hi      

The final energy of the first cylinder ( Ef ) = m*g*hf

and this energies are purely potential energies

According to conservation of energy :

m*g*hi = m*g*hf

         hi = hf   ( and this holds for both cylinders because they where both kept at the same height initially  )

i.e. initial height = final height ( hence it is proved that both cylinders will reach their initial heights )

b) Determine the ratio of the time taken by both cylinders

lets assume height of incline ( h ) = Lsin[tex]\beta[/tex]

where L = distance covered by cylinder

Final velocity of first cylinder ( V1 )  = [tex]\sqrt{\frac{4}{3} gLsin\beta }[/tex]  

Final velocity of  second cylinder ( V2 ) = [tex]\sqrt{2gLsin\beta }[/tex]

( following the application of the law of conservation of energy )

Given that ; Time taken = displacement / velocity  

hence the ratio = ( h / v1 ) / ( h / v2 )

where h = Lsin[tex]\beta[/tex]

the ratio = 1.22

c) The time for the rolling motion is greater than the time for the sliding motion because the potential energy is converted to both rotational kinetic energy and translational kinetic energy

Answer:

Average speed = 25m/s

Acceleration = 12.5m/s^2

Explanation

Let the distance covered by Riley be 50m

Average speed = Distance/Time

Average speed = 50/2

Average speed = 25m/s

Acceleration = Speed/time

Acceleration = 25/2

Acceleration = 12.5m/s^2

Note that the value of the distance was assumed

Answer:

The best-known power of the Supreme Court is judicial review, or the ability of the Court to declare a Legislative or Executive act in violation of the Constitution, is not found within the text of the Constitution itself. The Court established this doctrine in the case of Marbury v. Madison (1803).

No, it will not fall. The pencil will remain at zero speed relative to the spacecraft and will orbit the earth with the spacecraft.

Answer:

NASA did not spend millions developing a space pen. The first U.S. astronauts did indeed use pencils and not pens, according to the NASA History Program Office. After a private inventor (Paul Fisher) developed a space pen on his own, he attempted to sell the pens to NASA. At first NASA refused the offer. Pencils lead to unwanted dust in the confined quarters of a space ship,so NASA was searching for an alternative. Unfortunately, ordinary pens do not work in free fall conditions like the astronauts experience. On the surface of the earth, gravity accelerates the ink downward while the pen case is held in place by a person that is held in place by the ground. But in space, both pen and ink are steadily falling so that the ink does not come out. In contrast, Fisher's space pen uses internal pressure to force the ink out,much like an aerosol can. After testing Fisher's pen, NASA became so satisfied with their performance that it started purchasing the pens for $6 a piece. Russian cosmonauts also switched from pencils to Fisher space pens.

Explanation:

XOXO

Unknown

Answer: 50 m/s

Explanation: speed v = 2· pi·n·r = 2· 3.14· 2 s^-1· 4 m

Answer:

ok, This will be a story. (comic can also be done with this. In fact it is better)

The title is the journey of the ice cube. (change it if you want)

Main character - ice cube

There was an ice cube made by the water from the freezer in an ice shop.

The ice cube, with a bunch of other ice cubes, were taken to be packed and sold to a restaurant. The ice cube was excited to where he was going while the other ice cubes are just meh. Now that the ice cubes arrived, a restaurant worker stores the ice cubes in a cooler and later used to put ice in a lemonade. While the lemonade in a glass cup was carried outside the porch of the restaurant by the waiter, the ice cube was fascinated by the environment of the restaurant. The waiter finally serves the thirsty customer and the customer drank almost half of the lemonade but the ice cube did not get in the man's mouth. Instead the other ice cubes went. The ice cube feared the person. Shortly after checking his phone, the customer was about to reach on to the glass until the hands accidentally pushes the glass over and falls. The ice cube and the remaining ice cubes spread away with the wasted lemonade liquid. No one bothered cleaning up the ice cubes, only the glass shards because the floor is a smooth concrete. Outside was really hot from the sun anyways so it would melt the ice cube and sooner evaporate. As it was in liquid form, the "ice cube" was feeling relaxed because it was just chilling on the floor. And when it evaporates, the ice cubes becomes more fascinated since it goes up to the sky while having a sky-view from above.

That is the end.

You can add, edit or even not consider this one. But this is just an example to spark up your ideas. Sorry if I made some English mistakes.

Hope that helped! God Bless you!!!

Explanation:

Answer:

Force = 125 Newton

Explanation:

Given the following data;

Pressure = 50 pa

Area = 2.5 m²

To find the force applied;

Force = pressure * area

Substituting into the formula, we have;

Force = 50 * 2.5

Force = 125 Newton

Answer:

108km/h

Explanation:

1km=1000m

3600s=1 hr

M/s= 3600/1000km/hr= 3.6km/hr

30m/s= 30×3.6km/hr = 108km/hr

Answer:

The answer is below

Explanation:

Jenny and anne wanted to see who could throw the ball the hardest. they decided to each throw a ball against the wall as hard as they could and measured how far the ball rolled away from the wall. what might be the variables in this experiment;

Solution:

There are different type of collisions. In an inelastic collision, momentum is conserved and there is loss in kinetic energy while in an elastic collision, momentum is not conserved and there is no loss in kinetic energy.

During inelastic collision, the objects stick together while during an elastic collision, the objects separate.

When the ball is thrown against the stationary wall, there is momentum due to the force of impact. The distance at which the ball is rolled away from the wall depends on:

a) mass of the ball, b) velocity of the ball, c) mass of the wall d) type of collision (elastic or inelastic)

Answer:

A

Explanation:

Anything can be doing work at any time. Even when your sleeping work is being done so no part of the body needs to displace before work can be done.

Answer: a!! Bc 10x2=20!

Explanation:

Answer:

20N

Explanation:

F=m*a

F=10*2

F=20N

.....

Color is..blue, red, black... basically COLORS. Whereas luster is like a soft glow or gentle sheen kinda like something is shining. You could say the luster of the blue paint is beautiful.

Explanation:

Bowchiclawowowow

Answer: A

Explanation:

Answer:

25z

Explanation:

Answer:

it will be almost on the ground

Explanation:

i say this because the boom is heavy and its going down fast so it will not be in the air or on the floor it will be akmost o the ground.

Answer:

QuestionExplanation:

Answer:

b

Explanation:

liquid and solid

hope that helps :)

b

Explanation:

option b would be the answer

Answer:

spoon and scissors belong to first class lever.

hope it is helpful to you

Answer:

When two objects collide, a force is exerted on each object. The two forces are in opposite directions but the same strength. Even though the force on each object in a collision is the same strength, the objects will have different velocity changes if their masses are different.

Explanation:

*sighs* can u please give me brainliest-..... I'm literally crying....lol but PLEASE BRAINLIEST PLEASEEEE T_T