a student performs a standard two-slit interference experiment, and the interference pattern is projected on a screen. using a light sensor, the intensity of the pattern is measured, and a plot of intensity versus position is created.

The magnitude of the resultant vector to round the answer to the nearest tenth, we look at the digit in the hundredth's place. If this digit is 5 or greater, we round up. If it is less than 5, we round down.

In the study of physics, we use vectors to represent quantities that have both direction and magnitude. It is often the case that we want to add two or more vectors together to obtain a single vector that represents the net result of these additions. The process of adding two or more vectors together is known as vector addition.The magnitude of the resultant vector is the length of the line that represents it on a scale drawing.

When we add two or more vectors together, the resultant vector is the vector that represents the net result of these additions. To find the magnitude of the resultant vector, we use the Pythagorean theorem, which states that the square of the hypotenuse of a right triangle is equal to the sum of the squares of the other two sides.

In the case of vector addition, the hypotenuse is the resultant vector, and the other two sides are the component vectors. If we have two vectors a and b, the magnitude of the resultant vector is given by the following equation:|R| = √(ax2 + bx2)where R is the resultant vector, a and b are the component vectors, and x is the angle between the vectors.

For example, if the answer is 12.345, we would round it to 12.3.

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Answer: c)• 2/3

Explanation:

Lets say q1 and q2 are two charges with r distance far apart.

So electrostatic force

F = (k q1 q2) / r²

as k = Coulomb's constant

Now

q1' = 2q1

q2' = q2/3

Therefore the new electrostatic force

F' = (k q'1 q'2) / r²

F' = (k 2q1 q2) / 3r²

F' = 2/3 [(k q1 q2) / r²]

so F' = 2/3F

New electrostatic force  is 2/3F

The expression that represents the new electrostatic force between the two charges if one charge doubles and the other one is divided by three is;

Option C; F_new = ²/₃F

Formula for electrostatic force is;

F = kq₁q₂/r²

where;

k = Coulomb's constant

q₁ = first charge

q₂ = second charge

r = distance between charges

Now, we are told that one charge doubles and the other one is divided by three. Thus, the new charges are now;

2q₁ and q₂/3

Thus;

F_new = k(2q₁ × q₂/3) / r²

F_new = ²/₃kq₁q₂/r²

F_new in terms of F is;

F_new = ²/₃F

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The law of conservation of energy is a general principle that applies to all closed systems, while the first law of thermodynamics is a specific application of this principle to thermodynamic systems.

The law of conservation of energy and the first law of thermodynamics are related, but they are not exactly the same thing.

The law of conservation of energy states that the total energy of a closed system remains constant over time. Energy can be transformed from one form to another (such as from potential to kinetic energy), but the total amount of energy in the system remains constant. This is a fundamental law of physics and applies to all systems, not just thermodynamic ones.

The first law of thermodynamics is a specific application of the law of conservation of energy to thermodynamic systems. It states that the total energy of a thermodynamic system (including its internal energy, potential energy, and kinetic energy) is constant, but energy can be transferred into or out of the system in the form of heat or work. In other words, the first law of thermodynamics is a statement about the relationship between energy and work in thermodynamic processes.

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If a radio station broadcasts at 9.23 x 10⁷Hz and the velocity of the waves is 3  x 10⁸m/s, the wavelength of these waves is 3.25m.

According to the question,

Frequency of the FM radio = 9.23 x 10⁷Hz

Velocity of the waves = 3  x 10⁸m/s

The wavelength of the wave =?

To find the wavelength of the wave, we conclude the velocity equation;

Velocity = frequency x wavelength.

Since to find unknown is the wavelength, we have to solve for it:

       3  x 10⁸  = 9.23 x 10⁷ x wavelength

      wavelength =    3  x 10⁸/ 9.23 x 10⁷

      wavelength = 3.25m

Therefore, the wavelength of these waves is 3.25m.

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Answer:

well i tough it was infinte but its not an the layer is a d         i       c               k  

Explanation:

Answer:

Two or more simple machines work together to form a complex machine. Compound machines can do more difficult jobs than simple machines alone. Examples of complex machines are bicycle, wheel barrow, crane, car jack, lawn mover

Explanation:

A complex machine is device consisting of two more simple machine working together. for example a wedge is driven forced between objects to split lift or make them stronger.

ANSWER AND EXPLAINATION:
To calculate the impulse imparted on the baseball, we can use the impulse-momentum principle, which states that the impulse experienced by an object is equal to the change in momentum of the object. Mathematically, it can be expressed as:

Impulse = Change in momentum

The momentum of an object is given by the product of its mass and velocity:

Momentum = mass × velocity

In this case, the baseball has an initial mass of 0.14 kg and an initial velocity of 32 m/s. After being struck by the bat, it travels in the opposite direction at a velocity of 49 m/s.

Therefore, the change in momentum is given by:

Change in momentum = (mass × final velocity) - (mass × initial velocity)

Change in momentum = mass × (final velocity - initial velocity)

Change in momentum = 0.14 kg × (49 m/s - (-32 m/s))

Change in momentum = 0.14 kg × (49 m/s + 32 m/s)

Change in momentum = 0.14 kg × 81 m/s

Change in momentum = 11.34 kg·m/s

So, the impulse imparted on the baseball is 11.34 kg·m/s.

Answer:

no

Explanation:

u flipped it i cant see

The Moon's orbit around the Earth tells us about the mass of the Earth. The planets' orbits around the Sun tell us about the mass of the Sun and the relative distances and sizes of the planets. This is due to the gravitational force between these celestial bodies, which is determined by their mass and distance.

The gravitational force is an attraction between any two mass-containing objects. The fact that the Moon revolves around the Earth and the Earth and planets revolve around the Sun can provide us with valuable information about the sizes of these celestial bodies. This is because the gravitational force between any two objects is directly proportional to product of the masses and is inversely proportional to the square of the distance between the two masses.

Since the Moon is able to orbit the Earth, we know that the gravitational force between them is sufficient to keep the Moon in orbit. This gravitational force is determined by the mass of the Earth and the Moon, as well as the distance between them. By observing the Moon's orbit, we can estimate the mass of the Earth.

Similarly, the fact that the planets revolve around the Sun tells us that the gravitational force between them is strong enough to keep them in their orbits. By observing the planets' orbits, we can estimate the mass of the Sun. Furthermore, by comparing the planets' orbits, we can estimate the relative distances between the planets and the Sun, as well as the sizes of the planets.

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Answer:

b. 48.0 g.

Explanation:

Given;

mass of the exoplanet, \(M_p = 3M_e\)

radius of the exoplanet, \(r_p = \frac{1}{4} r_e\)

The acceleration due to gravity of the planet is calculated as;

\(g_p = \frac{GM_p}{r_p^2} \\\\for \ Earth's \ surface\\\\g = \frac{GM_e}{r_e^2} \\\\G = \frac{gr_e^2}{M_e} = \frac{g_pr_p^2}{M_p} \\\\\frac{gr_e^2}{M_e} = \frac{g_p(\frac{r_e}{4}) ^2}{3M_e} \\\\\frac{gr_e^2}{M_e} = \frac{g_pr_e ^2}{16\times 3M_e} \\\\g = \frac{g_p}{48} \\\\g_p = 48 \ g\)

Therefore, the correct option is b. 48.0 g

The distance between two objects of radius 6 cm and 2 cm is zero

To find the distance between two objects with radii of 6 cm and 2 cm, we need to consider the center-to-center distance between the objects and subtract the sum of their radii.

Let's denote the radii of the objects as r1 = 6 cm and r2 = 2 cm.

The distance between the centers of the objects can be represented as d = r1 + r2. Adding the radii ensures that we account for the space occupied by both objects.

Substituting the values, we have d = 6 cm + 2 cm = 8 cm.

Now, to find the actual distance between the objects, we subtract the sum of their radii from the center-to-center distance:

Distance = d - (r1 + r2) = 8 cm - (6 cm + 2 cm) = 8 cm - 8 cm = 0 cm.

The resulting distance is 0 cm, indicating that the objects are in direct contact with each other. This means that their surfaces are touching. When the distance between two objects is zero, it implies that they are overlapping or in physical contact. In this case, since the distance is equal to 0 cm, the two objects are touching each other, with their surfaces coming into contact.

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Explanation:

where are the formulas

please resend the question again and the formulas

Answer:

(A) The period of its rotation is 0.5 s (2) The frequency of its rotation is 2 Hz.

Explanation:

Given that,

a ball is spun around in circular motion such that it completes 50 rotations in 25 s.

(1). Let T be the period of its rotation. It can be calculated as follows :

\(T=\dfrac{25}{50}\\\\T=0.5\ s\)

(2). Let f be the frequency of its rotation. It can be defined as the number of rotations per unit time. So,

\(f=\dfrac{50}{25}\\\\f=2\ Hz\)

Hence, this is the required solution.

The magnitude of the power dissipated in resistor R4 is approximately 10,028 watts.

To find the power dissipated in resistor R4, use the formula:

P = I² × R

where P = power, I = current flowing through the resistor, and R = resistance of the resistor.

The total resistance, Rt, can be calculated using the formula:

1/Rt = 1/R1 + 1/R2 + 1/R3

Substituting the given values:

1/Rt = 1/3 + 1/0.8 + 1/2

Simplifying the equation:

1/Rt ≈ 1.6667

Rt ≈ 0.6 Ω

Next, calculate the total voltage, Vt, by summing the individual voltage sources:

Vt = ε1 + ε2 + ε3

Substituting the given values:

Vt = 9 + 6 + 4

Vt = 19 V

Now calculate the current flowing through resistor R4 using Ohm's Law:

I = Vt / Rt

Substituting the calculated values:

I = 19 / 0.6

I ≈ 31.6667 A

Finally, calculate the power dissipated in resistor R4:

P = I² × R4

Substituting the calculated values:

P = (31.6667)² × 10

P ≈ 10,028 W

Therefore, the magnitude of the power dissipated in resistor R4 is approximately 10,028 watts.

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Answer:

Wow wouldn't even know what it says lol. Thank you have a goodnight

Single Wire moves down, loop rotates left.

A single-wire system is a method of transmitting power or signals using only a single conductor. This is in contrast to the usual use of a pair of wires to provide a complete circuit, or an electrical cable containing (at least) two conductors for this purpose.

A single-wire transmission line is not the same as a single-wire earth return system. This is beyond the scope of this article. The latter system relies on reverse current flow through earth, using earth as a second conductor between earth terminal electrodes. A single-wire transmission line does not have a second conductor of any kind. 

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The angle I can rightly be called the angle of reflection.

The incident ray, the reflected ray, and the normal all reside on the same plane, according to the angles of reflection. This suggests that reflection may occur when two angles are in the same plane as the normal.

The angle I and depicted can appropriately be referred to as the angle of reflection in light of the aforementioned information.

Lastly, it is obvious from the image that angle I is the angle of reflection.

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Answer:

The  frequencies are  \(f_n = n (0.875 )\)

Explanation:

From the question we are told that

   The speed of the wave is  \(v = 0.700 \ m/s\)

   The  length of vibrating  clothesline is  \(L = 40.0 \ cm = 0.4 \ m\)

Generally the fundamental frequency is  mathematically represented as

        \(f = \frac{v}{2 L }\)

=>     \(f = \frac{ 0.700 }{2 * 0.4 }\)

=>     \(f = 0.875 \ Hz\)

Now  this other frequencies of vibration experience by the clotheslines are know as harmonics and they are obtained by integer multiple of  the fundamental frequency

So  

   The  frequencies are mathematically represented as

       \(f_n = n * f\)

=>     \(f_n = n (0.875 )\)

Where  n  =  1, 2, 3 ....

The height above the ground in which the vase is raised is 51.02 m.

The height above the ground in which the vase is raised is calculated by applying the formula for gravitational potential energy.

Gravitational potential energy of an object is the energy possessed by the object due to the object's position above the ground.

Mathematically, the formula for gravitational potential energy is given as;

P.E = mgh

where;

The given parameters include;

mass of the vase = 0.2 kg

potential energy of the vase = 100 J

acceleration due to gravity = 9.8 m/s²

h = P.E / mg

h = (100) / (0.2 x 9.8)

h = 51.02 m

Thus, the height of the vase is a function of the potential energy and mass of the vase.

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The complete question is below:

a 0.2 kg vase has a potential energy of 100j. What is the height of the vase?

Based on the results of the experiment, it can be concluded that the rate of flow of heat through different materials of the same thickness is different.

Here is an experimental plan to test the rate of flow of heat through different materials of the same thickness:

Materials:

Three blocks of different materials (e.g., metal, plastic, and wood)

Thermometer

Heat source (e.g., hot plate)

Stopwatch

Insulating material (e.g., foam)

Procedure:

Cut three blocks of the same thickness from each of the three materials.

Measure the initial temperature of each block using a thermometer.

Place the three blocks on a heat source (e.g., hot plate) with the same amount of heat and start the stopwatch.

Measure the temperature of each block every 30 seconds using the thermometer.

Record the temperature of each block at each time interval.

After 5 minutes, turn off the heat source and measure the final temperature of each block.

Calculate the temperature difference between the initial and final temperatures for each block.

Calculate the rate of heat flow for each block by dividing the temperature difference by the time interval.

Repeat the experiment at least three times for each block and take an average of the results.

Place each block on an insulating material (e.g., foam) and repeat the experiment to compare the effect of insulation on the rate of heat flow.

Data analysis:

Plot a graph of the rate of heat flow (y-axis) versus time (x-axis) for each block.

Compare the slopes of the graphs to determine the rate of heat flow for each block.

Compare the rates of heat flow for the three blocks to test the statement that the rate of flow of heat through different materials of the same thickness is different.

Compare the rates of heat flow for each block with and without insulation to determine the effect of insulation on the rate of heat flow.

Conclusion:

The rate of heat flow depends on the thermal conductivity of the material, which is a measure of how well a material conducts heat. Materials with higher thermal conductivity will have a higher rate of heat flow, while materials with lower thermal conductivity will have a lower rate of heat flow.

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Answer:

true a and c

Explanation:

The theory of special relativity is formulated under two postulates

* that the laws of physics are the same in all inertial systems

* that the speed of light in the vacuum is constant for all systems

with these postulates the energy of a particular is

        E = K + m c²

where the last term is called energy at rest

a) True. only when m = 0 the energy of the particle is scientific energy

be False. Nothing can go faster than light

c) Right. In a material medium the speed of light depends on the measurement reference frame

d) False For a particle of finite mass the energy must be greater than the energy at rest

Answer:

Hello your question lacks some information and that is the distance

At r = 0.150 m (outside the cable)  note :  (μ 0 = 4π × 10-7 T · m/A)

answer: 4.7 * 10^-6 T

Explanation:

R1 = 0.03 m

R2 = 0.07 m

R3 = 0.1 m

Inner conductor carries current = 4.5A in one direction

outer conductor carries current = 8A in opposite direction

Determine the value of magnetic field at r = 0.150 m

net current = 8 - 4.5 = 3.5 A

∴ β ( value of  magnetic field )

= ( 4π * 10^-7 * 3.5 ) / ( 2π * 0.150 )

= 4.4*10^-6 / 0.94

= 4.7 * 10^-6 T

Answer:

C

Explanation:

Earth rotates once in about 24 hours with respect to the Sun, but once every 23 hours, 56 minutes, and 4 seconds with respect to other, distant, stars. Earth's rotation is slowing slightly with time; thus, a day was shorter in the past. This is due to the tidal effects the Moon has on Earth's rotation.

Answer: the answer is b.

ps: the other answer is wrong, the earth rotates around the sun, and the sun doesn't rotate around the earth.

Explanation:

The velocity of the car 1 can be seen from the calculation as 20 m/s West

A coordinate system or point of view used to observe motion is known as a frame of reference. It can be used as a guide when describing an object's position, speed, and acceleration. Different frames of reference may result in various motion observations.

The relative velocity is the velocity of an object or observer as observed from a particular frame of reference.

We can see that the velocity of the car 1 is;

45 m/s - 25 m/s

= 20 m/s West

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The box accelerates to the right due to the applied force of 35 N in the +x direction.

Newton's second law states that the acceleration of an object is directly proportional to the net force applied to it and inversely proportional to its mass. In this case, the net force acting on the box is 35 N in the +x direction, and its mass is 15 kg. Therefore, we can calculate the acceleration using the formula:

acceleration = net force / mass

acceleration = 35 N / 15 kg = 2.33 m/s² (rounded to two decimal places)

Since the box is not accelerating up or down, we can conclude that the force applied is only causing the box to accelerate in the horizontal direction.

Other forces such as gravity and friction are not considered in this scenario. Thus, the 15 kg box will experience an acceleration of approximately 2.33 m/s² in the +x direction due to the applied force of 35 N.

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Answer:

m = 0.5

Explanation:

Given that,

The length of the blade of scissors = 5 cm

The length of the handle = 2.5 cm

Here, effort arm is 2.5 cm and load arm is 5 cm. The mechanical advantage is the ratio of effort arm to the load arm as follows :

\(m=\dfrac{2.5}{5}\\\\m=0.5\)

So, the ideal mechanical advantage of a pair of scissors is 0.5.

Answer:

Explanation:

Pressure will expand a gas, enlarging its volume and reducing its density and concentration of particles. Pressure will magnify a gas, developing its volume and multiplying its density and concentration of particles.

Increasing the pressure of a gas is exactly the same as increasing its concentration. If you have a given mass of gas, the way you increase its pressure is to squeeze it into a smaller volume. If you have the same mass in a smaller volume, then its concentration is higher.

By using Specific heat capacity, 741.76 x \(10^4\)heat energy is needed to raise the temperature.

The amount of heat required to increase the temperature of 1 gram of a substance by 1 degree Celsius (°C) is known as the specific heat capacity.

The importance of specific heat capacity may be summed up as the quantity of energy needed to heat or cool an item of a given mass by a certain amount.

Given:

Mass of vat, mvat = 20kg

Mass of water, mwater = 3kg

ΔT = 90 – 10 = 80℃

Specific heat capacity of iron, Ciron = 450J/kg

Specific heat capacity of water, Cwater = 4186J/kg

To find:

Heat energy required, Q = ?

Formula:

C = Q / (m ΔT)

Calculations:

Q = mCΔT

Q = Qempty + Qwater

Q = (20 x 450 x 80) + (3 x 4186 x 80)

Q = 172.464 x \(10^4\)J

Result:

Heat energy required is 172.464 x \(10^4\)J

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Answer:

All the statements above are true for martin and his brother in the book "My Brother Martin".

The late Dr. Martin Luther King Jr.'s older sister and renowned educator Christine King Farris collaborate with renowned illustrator Chris Soentpiet to tell this "outstanding" (School Library Journal) and motivational tale of how a boyhood event sparked a movement that would alter the course of history. In "My Brother Martin," Martin Luther King tells us what it was like to be a young kid of seven. Martin Luther King Jr. was a little boy who played jokes, practised the piano, and made friends without taking race into consideration long before he rose to fame as a global visionary.

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