(a) how would the pattern of bright and dark fringes produced in a young's double-slit experiment change if the light waves coming from both slits had their phases shifted by an amount equivalent to a half wavelength? (b) how would the pattern change, if the light coming from only one of the slits had its phase shifted by an amount equivalent to a half wavelength? cj7 27.cq.003

2*3.5 = 7m/s

You multiply the acceleration per the time (they both are in seconds, otherwise, you should set them in the same units).

The data should be put on the graph to determine who covered a longer distance by running each day in the units that will be used to measure distance. Option C is correct.

Distance is a numerical representation of the distance between two objects or locations.

The distance can refer to a physical length or an estimate based on other factors in physics or common use. |AB| is a symbol for the distance between two points A and B.

Distance is measured in the meter, centimeter, miles, nautical mile, feet, etc. The unit of the distance is most important in order to find it.

Hiyang and Nancy are preparing for a race. Some of their training-related notes were entered on a chart.

The data should be put on the graph to determine who covered a longer distance by running each day in the units that will be used to measure distance.

Hence, option C is correct.

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Answer:

C) the units used to measure distance each day

Explanation:

Answer:

it would be c, an increase in competition for abiotic factors because if more trees are to be planted, less sunlight would seep through the leaves, leaving the producers to gain the abiotic factors to do with sunlight, temperature, and water

I hope this helps!!

have a wonderful day!

-millie :D

Answer:

friction

air drag

every thing that opposes the motion affects kinetic energy

Explanation:

kinetic energy is a energy which is increase with increase in motion and potential energy is energy stored while the object is at rest

potential energy ∝ 1/(kinetic energy)

as kinetic energy increases potential energy decreases

the difference between the initial cities along the route is 70.0 km.

To determine the average speed for the trip, we can calculate the total distance traveled and divide it by the total time taken.

First, let's calculate the distances traveled during each segment of the trip:

Distance_1 = (80.0 km/h) * (15.0 min) = 20.0 km

Distance_2 = (50.0 km/h) * (15.0 min) = 12.5 km

Distance_3 = (45.0 km/h) * (50.0 min) = 37.5 km

Next, let's calculate the total time taken for the trip:

Total time = 15.0 min + 15.0 min + 50.0 min + 50.0 min = 130.0 min

Now, let's calculate the total distance traveled:

Total distance = Distance_1 + Distance_2 + Distance_3 = 20.0 km + 12.5 km + 37.5 km = 70.0 km

Finally, we can calculate the average speed for the trip:

Average speed = Total distance / Total time = 70.0 km / 130.0 min ≈ 0.538 km/min

Therefore, the average speed for the trip is approximately 0.538 km/min.

To determine the difference between the initial cities along the route, we need to find the net displacement or the total distance covered in one direction during the trip.

Net displacement = Distance_1 + Distance_2 + Distance_3 = 20.0 km + 12.5 km + 37.5 km = 70.0 km

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Answer:

-4.75

Explanation:

its right just trust me

Answer:

v = 15.3  m/s

Explanation:

Given:

f = 170 Hz  - Oscillation frequency

λ = 0.09 m - Wavelength

__________

v - ? Wave speed

Wave speed:

v = f·λ

v = 170·0.09 ≈ 15.3  m/s

velocity of the falcon when it reaches the pigeon = 3.94 s

Take down to be positive.  

Given, Δy = 76.0 m

v₀ = 0 m/s

a = 9.8 m/s²

Δy = v₀ t + ½ at²

76.0 m = (0 m/s) t + ½ (9.8 m/s²) t²

t = 3.94 s

The equations of motion of kinematics describe the most fundamental concepts of motion of an object. These equations govern the motion of an object in 1D, 2D and 3D. They can easily be used to calculate expressions such as the position, velocity, or acceleration of an object at various times.

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Alice and Bob's swimming speeds with respect to the water are 2.62 km/h each. Let Alice swim across the river straight from A to B while Bob swims perpendicular to the river and is carried some distance downstream by the flow.

Let's consider the distance Alice swims from A to B to be "d," which is the same as the distance Bob walks along the river from the point where he lands to B. Let the time taken by Alice be "t" (hours) to swim across the river straight from A to B, and let the distance Bob is carried by the river be "x."

Let's take "v" as the walking speed of Bob (km/h).Since Alice's and Bob's arrival time is the same at B, d/2.62 = (d-x)/(2.62)² + (x² + d²)¹/²  / 0.523 ...(1) [Applying the Pythagorean theorem in the triangle ABC in the given diagram.]

d/2.62 = (d-x)/0.2734 + (x² + d²)¹/²  / 0.523 ...(2) [Squaring both sides of (1)]Now, equating (1) and (2) and solving for "x," we have: x = 0.6 d

Substituting this value of "x" in (1), we get: d/2.62 = (0.4 d)/(2.62)² + (d² + 0.36 d²)¹/²  / 0.523 ...(3)Substituting the values in equation (3), we get:0.38 d = 2.38d = 6.26 km

Therefore, Alice's time to swim across the river straight from A to B is: d/2.62 = 2.39 hours Now, substituting the value of "d" in (1), we have: v = 0.4×6.26/0.39 = 6.44 km/h Therefore, the speed of Bob's walk to reach point B is 6.44 km/h if he reaches point B at the same time as Alice.

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Im not sure but no one can kek lskhd. akshd

The wavelength of radio waves broadcast by a radio station with a frequency of 1300khz would be 230.76 m

It can be understood in terms of the distance between any two similar successive points across any wave for example wavelength can be calculated by measuring the distance between any two successive crests.

The wavelength is inversely proportional to the frequency of the wave as from the following relation.

C = νλ

As given in the question  the wavelength of radio waves broadcast by a radio station with a frequency of 1300khz,

By using the formula

C = νλ

3×10⁸ = 1300 ×10³×λ

λ = 3×10⁸/ 1300 ×10³

  = 230.76 m

Thus,the wavelength of the radio waves comes out to be 230.76 m.

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Answer:

B. The vibrations of the fields are at 90° angles to the direction of

motion of the wave.

Explanation:

Electromagnetic waves are waves that are produced by the vibration of the electric and magnetic fields.

Both fields are oriented perpendicularly to one another. This vibration produces the electromagnetic waves.

These waves are very unique in that they do not require any material medium for propagation.

There is a broad spectrum of electromagnetic waves with gamma rays being the most energetic and radio waves being the least energetic.

Answer: B is the correct answer

Explanation:

Gravity is the pull of an object that varies on the object's mass. Its the force that pulls us toward the Earth. For example, The Earth is very big compared to you, so you are attracted to it. A pencil, however, has little mass; Therefore it does not attract other objects to it.

Answer:

hi your answer should be B

Explanation:

Hope this helps!

Answer:

ionic

Explanation:

two metals that bond are considered ionic bonds

Answer:

The magnitude of the surface charge density on either plate is approximately 5.41 × 10⁻⁸ C/(m²)

Explanation:

The magnitude of the charge on each of the conducting plates = Equal

The orientation of the charges on each plate = Opposite charges

The magnitude of the point charge placed between the plates = +3.60 nC

The force acting on the point charge, q = 22.0 μN

Therefore, we have;

F = E × q

E = F/q = 22.0 μN/+3.60nC = 6,111.1111 V/m

We have;

\(E = \dfrac{\rho }{\epsilon_0}\)

Where;

ρ = The surface charge density

ε₀ = Absolute permittivity ≈ 8.85 × 10⁻¹² C²/(N·m²)

Therefore, we have;

ρ = E × ε₀ = 6,111.1111 V/m × 8.85 × 10⁻¹² C²/(N·m²) = 5.40833332 × 10⁻⁸ C/(m²)

∴ The magnitude of the surface charge density on either plate, ρ ≈ 5.41 × 10⁻⁸ C/(m²).

Answer: 0.0 m/s

Explanation

(1) The image of an object placed further from the lens than the focal point will be upside down and smaller than the object.

(2) When light rays reflect, they bounce back.

(3)  Images formed by a concave lens will look magnified.

(4) When light rays enter a different medium, they bend.

The image of an object placed further from the lens than the focal point will be diminished and inverted.

Thus, the correct answer will be "upside down and smaller than the object".

The ability of light to bounce back when it strike a hard surface is known as refection.

A concave lens is diverging lens is usually virtual, erect and magnified.

The change in speed of light when it travels from medium to another medium is known as refraction. Refraction is also, the ability of light to bend around obstacles.

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Answer:

It is upside down and larger than the object

They bounce back

Magnified

They bend

Explanation:

Answer:

8 minutes

Explanation:

Light travels at a speed of 299,792

kilometers per second; 186,287 miles

per second. It takes 499.0 second

for light to travel from the Sun to the

Earth, a distance celled 1 Astronomical

Unit.

Answer:

The initial vertical velocity is the vertical component of the initial velocity: v0y=v0sinθ0=(30.0m/s)sin45°=21.2m/s.

Explanation:

Time taken by arrow to reach height point is 2.2 seconds

Given:

Initial velocity of arrow = 22 m/s

Find:

Time taken by arrow to reach height point

Computation:

We know that, highest point stands when final velocity is 0 m/s

So,

Final velocity = 0 m/s

Gravitational acceleration = 10 m/s²

So,

v = u + at

0 = 22 + 10(t)

10t = -22

t = -22 / 10

t = -2.2 second

Time taken = 2.2 seconds

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B

the second chart shows a constant acceleration

Answer:

Covalent bond

Electrovalent bond

Explanation:

In covalent bond element share electrons

In electrovalent bond element donate electrons

Answer:

it's B. circuit a and b are series circuit while c is parallel

Answer:

hello your question is vague hence I will provide a general answer about what was known about atoms in the 19th Century

answer :

By the end of the 19th century more than half of the population believed in the presence of atoms and also in the 19th Century is was a known fact that atoms determine the chemical properties of an element

Explanation:

By the end of the 19th century more than half of the population believed in the presence of atoms and also by the 19th Century is was a known fact that atoms determine the chemical properties of an element.

John Dalton reintroduced the presence of atoms in 1800 with evidence which he used to develop atomic theory. with this theory people believed in the presence of atoms in nature and also that atoms determine the chemical properties of an element .

Answer:

Psychology is the scientific study of mental processes and behavior.

Explanation:

God Bless :)

The focal length of the lens is 17.7 cm. The height of the image formed by the new diverging lens is 10.0 cm.

Given that the lens forms a real image that is twice as high as the object, we can use the magnification formula to find the magnification (M) of the lens. The magnification is given by the ratio of the image height (H₂) to the object height (H₁). In this case, H₂ = 2H₁.

We can also use the lens formula, which relates the object distance (u), image distance (v), and focal length (f) of the lens:

1/f = 1/v - 1/u

Since the image formed is real, the image distance (v) is positive. The object distance (u) is given as 26.5 cm.

Using the magnification formula, we have:

M = H₂ / H₁ = 2H₁ / H₁ = 2

By substituting the given values into the lens formula and rearranging the equation, we can solve for the focal length (f):

1/f = 1/v - 1/u

1/f = 1/v - 1/26.5

1/f = (26.5 - v) / (26.5v)

f = (26.5v) / (26.5 - v)

Since the magnification (M) is equal to v/u, we have:

M = v / u

2 = v / 26.5

v = 2 * 26.5

v = 53

Substituting this value into the equation for f:

f = (26.5 * 53) / (26.5 - 53)

f = (26.5 * 53) / (-26.5)

f = -53

However, focal length cannot be negative for a lens. Therefore, we consider the absolute value:

f = |-53| = 53

f ≈ 17.7 cm

Therefore, the focal length of the lens is approximately 17.7 cm.

For the second part of the question:

When a diverging lens with the same focal points as the first lens is used, the height of the image formed by the new lens can be determined using the magnification formula:

M = H₂ / H₁

Given that H₁ = 5.00 cm and H₂ is the height of the image formed by the new lens, we can substitute these values into the magnification formula:

2 = H₂ / 5.00

Solving for H₂, we have:

H₂ = 2 * 5.00

H₂ = 10.00 cm

Therefore, the height of the image formed by the new lens is 10.00 cm.

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technically usually the warmer object/substances particles move master which causes friction among the particles plus the kinetic energy being converted to thermal energy, so i would say the hand.

Answer:

1. Unbalanced Force (If you increase force, the acceleration will increase)

2. Mass of Body (If you increase mass, the acceleration will decrease)

Explanation:

According to Newton's Second Law the acceleration produced in a body depends upon two variables. The law states that:

“When an unbalanced force is applied on a body then an acceleration is produced in it, in its own direction”

The magnitude of produced acceleration is directly proportional to the applied force and inversely proportional to the mass of body. Mathematically,

   a α F

and,    a α 1/m

where,

a = acceleration

F = Unbalanced Force

m = Mass of Body

So, the acceleration increases when the unbalanced force increase and vice versa.

And the acceleration decreases when the mass of body increase and vice versa.

combining above equations:

a α F/m

a = (Constant)F/m

here,

Constant = 1

therefore,

F = ma