Suppose I set up a double slit experiment with a certain slit distance d and a certain wavelength of light lambda. If I decrease the slit distance (d), what will happen to the pattern on the screen?

First consider what you want to achieve, and then commit to it. Set SMART (specific, measureable, attainable, relevant and time-bound) goals that motivate you and write them down to make them feel tangible. Then plan the steps you must take to realize your goal, and cross off each one as you work through them.

The first step in creating a successful long-term goal is to define what you want to achieve.

This involves setting a clear and specific objective that you can work towards over an extended period of time. To define your goal, start by identifying your passions, interests, and values. For example, if you are passionate about environmental conservation, your long-term goal might be to start your own nonprofit organization focused on protecting endangered species.

Once you have a general idea of what you want to achieve, it's important to make your goal SMART: Specific, Measurable, Achievable, Relevant, and Time-bound. This means breaking down your goal into smaller, actionable steps that are realistic and can be measured or evaluated.

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The total mechanical energy of the ball just before it strikes the ground is 43.092 J.

The total of a system's kinetic and potential energy is known as mechanical energy. Whereas potential energy is the energy held in an item as a result of its position or configuration, kinetic energy is the energy of motion. Mechanical energy is simply the energy connected to an object's motion and position.

Given that,

Mass (m)= 0.1kg

Height (h)= 22m

Acceleration due to gravity (g) = 9.81 m/s²

Potential Energy = mgh

                            =  0.1 kg ×  9.81 m/s² × 22 m

                            = 21.546 J

We may consider the potential energy to be equal to the kinetic energy shortly before contact since the ball's potential energy is converted into kinetic energy when it reaches the ground:

Kinetic Energy = Potential Energy

Kinetic Energy = 21.546 J

Therefore,

Total Mechanical Energy = Kinetic Energy + Potential Energy

                                          = 21.546 J + 21.546 J

                                          = 43.092 J

Hence, the total mechanical energy of the ball just before it strikes the ground is 43.092 J.

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Answer:

b. Because the southern pole of the Earth's magnet is in the north.

Explanation:

This is very weird to think about but Earth's southern magnetic pole is in Earth's geographic north. So when compass points north, it is actually getting attracted to the southern magnetic pole (that is actually located in the north direction- geographic location- in earth).

Answer:

Work, in physics, refers to the measure of energy transfer that occurs when an object is moved over a distance by an external force at least part of which is applied in the direction of the displacement.

Hey there!

Work is defined as the the force which gets applied to an object in order to displace (move) it. For example, you work in order to walk up & down the stairs. For this, you need to apply force as well. So, work done = force × distance.

Hope it helps!

ANSWER:

C. reflected ray

STEP-BY-STEP EXPLANATION:

The line that divides the angle between the incident ray and the reflected ray into two equal angles is known as the normal line.

Therefore, the angle between the reflected ray and the normal is known as the angle of reflection.

Therefore, the correct answer is C. reflected ray

The energy gained by the cold water stream can be calculated using the equation: Q_cold = m_cold * C_cold * (T_mixture - T_cold)

Q_hot = m_hot * C_hot * (T_hot - T_mixture)

Q_hot is the energy lost by the hot water stream

m_hot is the mass flow rate of the hot water stream (given as 0.5 kg/s)

C_hot is the specific heat capacity of water (approximately 4,186 J/kg°C)

T_hot is the initial temperature of the hot water stream (80°C)

Since the energy gained by the cold water stream must be equal to the energy lost by the hot water stream, we can set up the following equation:

m_cold * C_cold * (T_mixture - T_cold) = m_hot * C_hot * (T_hot - T_mixture)

Now we can solve for m_cold:

m_cold = (0.5 * 4,186 * (80 - 42)) / (4,186 * (42 - 20))

m_cold ≈ 0.25 kg/s

Therefore, the mass flow rate of the cold water stream should be approximately 0.25 kg/s to achieve the desired mixture temperature of 42°C.

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The correct answer is car travels distance of 38.19 Km. in time of 37 min.

What is relation between speed, time, distance?

Speed = Distance/Time

It describes one object how much distance travelled is going to cover in referred time.

Given, Speed = 62 Km/hr. means 62 Km is going to cover in 1 hr. or 60 min

As Speed = Distance / time

As time is given in min form so in hr. it will be 37 min / 60 = 0.616 hr.

 62 Km/ hr. = X Km / 0.616

 X in Km= 62 x 0.616 = 38.19 Km.

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The kinetic energy of balls is conserved, the collision is elastic.

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Answer:

D

Explanation: Given that a student leaves their history classroom and walks 20 meters north to a drinking fountain. Then the student turns and walks 50 meters south to their art classroom.

The distance is a scalar quantity.

The distance = 50 + 20

distance = 70 metres

Therefore, the magnitude of the total distance traveled by the student is 70 metres. Which is option D

The approximate period of this pendulum on the moon where the acceleration due to gravity is roughly 1/6 that of earth is 15s. The correct option is -d. 15 s.

On Earth, we know that T=6.0 s. Let's assume the length of the pendulum remains constant.
Now, on the moon, the acceleration due to gravity is approximately 1/6 that of Earth's, so g'=g/6.

Using the same equation as before, we can find the new period T' on the moon:
T' = 2π√(L/g') = 2π√(L/(g/6)) = 2π√(6L/g)

Substituting in T=6.0 s, we have:
T' = 2π√(6L/g) = 2π√(6T^2g/L) = 2π√(6(6.0 s)^2(9.81 m/s^2)/L)

Since we are looking for an approximate answer, we can estimate L to be roughly the same on the moon as it is on Earth. Therefore, we can simplify the equation to:

T' ≈ 2π√(6(6.0 s)^2(9.81 m/s^2)/L) ≈ 2π√(216) ≈ 29.1 s
Therefore, the correct option is -d. 15 s.

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The period of a pendulum is the time it takes for the pendulum to complete one full swing. In this case, we know that a simple pendulum on earth has a period of 6.0 s. However, on the moon, the acceleration due to gravity is roughly 1/6 that of earth.Therefore, the correct answer is (b) 2.4 s.

This means that the force acting on the pendulum is much weaker on the moon than on earth. As a result, the pendulum will swing slower on the moon than on earth. To calculate the approximate period of the pendulum on the moon, we can use the formula T=2π√(l/g), where T is the period, l is the length of the pendulum, and g is the acceleration due to gravity. Plugging in the appropriate values, we get T=2π√(l/(1/6g)). Simplifying this equation, we can see that the period on the moon will be approximately 2.4 s. Therefore, the correct answer is (b) 2.4 s.

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The optimal values of \(q_1\) and \(q_2\) are determined by these equations, which are functions of Michael's income and the prices of the goods.

The given problem describes Michael's utility maximization problem with a constant elasticity of substitution (CES) utility function. The objective is to find the optimal values of \(q_1\) and \(q_2\) in terms of Michael's income (Y) and the prices of the two goods (\(p_1\) and \(p_2\)).

1. Substitute the income constraint into Michael's utility function:

\(U(q_1, q_2) = (q_1^\rho + q_2^\rho)^(1/\rho)\)

  s.t. \(Y = p_1q_1 + p_2q_2\)

  We can rewrite Michael's budget constraint as \(q_2 = (Y - p_1q_1)/p_2\). Substituting this expression into his utility function, we have:

 \(U(q_1, p_2, Y) = (q_1^\rho + [p_2(Y - p_1q_1)/p_2]^\rho)^{(1/\rho)\)

  By making this substitution, we have converted the constrained maximization problem with two control variables (\(q_1\) and \(q_2\)) into an unconstrained problem with one control variable \((q_1)\).

2. Use the standard unconstrained maximization approach to determine the optimal value for \(q_1\). To obtain the first-order condition, we differentiate the utility function with respect to \(q_1\) and set it equal to zero:

\(\delta U / \delta q_1 = \rho(q_1^{(\rho-1)} + \rho[p_2(Y - p_1q_1)/p_2]^{(\rho-1)}(-p_1/p_2)) = 0\)

Simplifying and solving for \(q_1\):

\(\rho q_1^{(\rho-1)} - \rho(p_1/p_2)[p_2(Y - p_1q_1)/p_2]^{(\rho-1)} = 0\)

\(\rho q_1^{(\rho-1)} - \rho(p_1/p_2)[Y - p_1q_1]^{(\rho-1)} = 0\)

\(\rho q_1^{(\rho-1)} = \rho(p_1/p_2)[Y - p_1q_1]^{(\rho-1)}\)

\(q_1^{(\rho-1)} = (p_1/p_2)[Y - p_1q_1]^{(\rho-1)\)

\(q_1^{(\rho-1)} = (p_1/p_2)^{(1-\rho)}[Y - p_1q_1]^{(\rho-1)}\)

\(q_1^{(\rho-1)} = (p_1/p_2)^{(1-\rho)}(Y - p_1q_1)^{(\rho-1)}\)

\(q_1^{(\rho-1)} = (p_1/p_2)^{(1-\rho)}(Y^{(\rho-1)} - (\rho-1)p_1q_1(Y - p_1q_1)^{(\rho-2)})\)

  This equation represents Michael's optimal \(q_1\) as a function of his income (Y) and the prices (\(p_1\) and \(p_2\)).

3. Similarly, we can derive a similar expression for his optimal \(q_2\):

\(q_2^{(\rho-1)} = (p_2/p_1)^(1-\rho)(Y^{(\rho-1)} - (\rho-1)p_2q_2(Y - p_1q_2)^{(\rho-2)})\)

  This equation represents Michael's optimal \(q_2\) as a function of his income (Y) and the prices (\(p_1\) and \(p_2\)).

Therefore, these equations, which depend on Michael's income and the prices of the commodities, determine the ideal values of \(q_1\) and \(q_2\).

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Answer:

I believe the answer is B.

Explanation:

Newton's First Law of Gravity states, "The greater the weight (or mass) of an object, the more inertia it has. Heavy objects are harder to move than light ones because they have more inertia. "

The answer is D.

All objects travel at the same speed due to gravity.

I hope I helped! Sorry if my inference was incorrect.

(a) The initial temperature is 373.95 K.

(b) The final temperature is 546.15 K.

(c) The total internal energy change of the fluid during this process is 515.4 kJ.

(d) The process can be represented as an isochoric heating process on the P-v diagram and as an isobaric expansion process on the T-v diagram.

(a) To find the initial temperature, we can use the saturated steam tables. At a pressure of 200 kPa, the corresponding saturation temperature is 373.95 K.

(b) Since the volume doubles, the process is an isochoric (constant volume) heating process. Using the ideal gas law, we can determine the final temperature. The initial and final volumes are related by the equation V_final = 2V_initial. Since the mass remains constant, the specific volume (v) is inversely proportional to the density (ρ). Therefore, ρ_final = ρ_initial/2. Using the ideal gas law, we can calculate the final temperature to be 546.15 K.

(c) The total internal energy change can be calculated using the equation ΔU = mC_vΔT, where m is the mass of the fluid and C_v is the specific heat at constant volume. Given the mass as 0.5 kg, the specific heat of water at constant volume, and the temperature change, we can find that the total internal energy change is 515.4 kJ.

(d) On the P-v diagram, the process is represented as a vertical line at 200 kPa, indicating constant pressure. On the T-v diagram, the process is shown as an upward-sloping line, indicating an isobaric expansion process. The initial state is represented as a point on the left, and the final state is represented as a point on the right. The path between the initial and final states is a straight line connecting these two points.

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Dust is important to the condensation sequence because it acts as a surface for the formation of ice and other solid particles in the cold outer regions of the protoplanetary disk. The dust grains provide a surface where water vapor molecules and other volatiles can condense and freeze, forming tiny ice particles known as "frost."

These ice particles then collide and stick together to form larger and larger objects, eventually leading to the formation of planetesimals and eventually planets. Without dust, the condensation process would be greatly slowed down or even halted, making it difficult for planets to form in the protoplanetary disk.

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225.0 g of water releases 32.07 kJ of heat when it cools from 85.5 °C to 50.0 °C.

When water cools, it releases heat. To calculate the amount of heat that 225.0 g of water releases as it cools from 85.5 °C to 50.0 °C,

we can use the formula q = mct. In this formula, q represents the amount of heat released, m represents the mass of the water, c represents the specific heat of the water, and t represents the change in temperature.

Plugging in the values given in the question, we get:q = 225.0 g × 4.18 J/g•°C × (85.5 °C − 50.0 °C) = 32,067.75 J or 32.07 kJ

Therefore, 225.0 g of water releases 32.07 kJ of heat when it cools from 85.5 °C to 50.0 °C.

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The specific heat of water is 4.18 J/g•°C. How much heat does 225.0 g of water release when it cools from 85.5°C to 50.0°C?

Use the formula q = mC T.

Answer: B

3.34 x 10 exponent- 4 J

Recording the sounds of crickets chirping for a night-time bedroom scene falls under the category of Audio Recording or Sound Effects Recording.

Recording the sounds of crickets chirping for a night-time bedroom scene falls under the category of audio recording or sound effects recording in the field of radio, television, and film (RTVF). This type of recording involves capturing specific sounds or ambient sounds to enhance the audio atmosphere and realism of a scene.

In this case, the purpose is to recreate the sounds of crickets chirping to create a realistic night-time ambiance in the bedroom scene. These recordings can be used to add depth and authenticity to the audio track and create a more immersive experience for the audience. Sound effects recording plays a crucial role in creating a realistic audio environment and enhancing the overall production value of RTVF projects.

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Answer:

1 m = 39.37 in = 3.281 ft

1500 m * 3.281 ft / m = 4922 ft

(5280 - 4922) / 4922 = .073 = 7.3 %

(Note - 1600 m often replaces the 1 mi run)

Answer:

b

Explanation:

The Coriolis effect is a condition which causes a hurricane to rotate in a particular direction. Thus, the correct option is B.

Hurricanes are the enormous storms which come with a rotating wind speed of about 74 miles per hour. The rotating wind that swirls across the warm water of the tropics and also comes with a terrifying force.

The Coriolis force is an inertial or the fictitious force, which acts on the objects which are in motion within a frame of reference that rotates them with respect to an inertial frame. In a reference frame, with the clockwise rotation, the force acts to the left of the motion of the object. Whereas, in one with anticlockwise or counterclockwise rotation, the force acts to the right of the object. The deflection of an object due to this Coriolis force is called as the Coriolis effect.

Therefore, the correct option is B.

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Electric and magnetic fields are proportional, and transverse electromagnetic waves do exist in nature. and have oscillations that are parallel to one another and have the same phase. A medium is not necessary for electromagnetic waves to travel.

Mechanical waves cannot pass through a vacuum, which is empty space, however electromagnetic waves can. They require a means of transportation, like water or air. The wave propagates in a direction that is opposite to both the magnetic and electric fields.

Two waves that are oscillating perpendicular to one another make up electromagnetic waves. One is represented by the oscillating magnetic field, while the other is represented by the oscillating electric field.

Therefore, Mechanical waves include things like pond ripples while electromagnetic waves, like light and radio signals, can move through space's vacuum.

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As water flows from a low elevation to a higher elevation through a pipe that changes in diameter Need more information to determine how the water pressure changes. The correct option is option (4).

According to Bernoulli's principle, as the water flows through a pipe and encounters a decrease in diameter, the velocity of the water increases. This increase in velocity is accompanied by a decrease in pressure. This phenomenon is known as the Venturi effect.

P = ρgh

pressure depends on the height.

But changing the diameter pressure depends.

More area of the cross-section gives lesser velocity that it emerges out at its cross-section.

Therefore, Need more information to determine how the water pressure changes. the correct option is option (4).

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Since the magnification is equal to 1, the image height is​ the same as the object height which is 5 cm

Magnification is when the ratio of the size of the image to the size of the object is greater than 1

Given that an object of height 5cm is placed at 20cm from a concave mirror of focal length 10cm.

To find the image height, let us first find the image distance by using the formula below

1/f = 1/u + 1/v

Substitute all the parameters

1/10 = 1/20 + 1/v

1/v = 1/10 - 1/20

1/v = (2 - 1)/20

1/v = 1/20

v = 20 cm

Magnification = v/u = H/h

20/20 = H/5

H = 5 cm

Therefore, the image height is​ the same as the object height which is 5 cm

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Answer:

it transfers from one place to another.

Explanation:

let's take our example as money:

Money is neither created nor destroyed but it is transferred.

Answer:

Outside the edges of the solar system.

That's not a simple question, and it doesn't have a simple answer.

The two Voyager spacecraft have been flying for about 43 years now.

They left the "heliosphere" about 2 years ago (in November 2018), and are now about 10.9 billion miles from Earth.

Mission controllers can still communicate with them, but it takes radio signals almost 17 hours to reach either one of the spacecraft from Earth.

(And another 17 hours if it has anything to answer back.  That's a day and a half to do a "How are you ?" . . . . . "I'm OK.".)

But wait !  

The boundary of the solar system is considered to be beyond the outer edge of the "Oort Cloud", a collection of small objects that are still under the influence of the Sun's gravity. The thickness of the Oort Cloud is not exactly known, but it's estimated to begin at about 93 billion miles from the Sun, and to extend maybe as far as 9,300 billion miles from the sun.  It will take about 300 years for Voyager 2 to reach the inner edge of the Oort Cloud and possibly 30,000 years to fly beyond it.

So even though the Voyager spacecraft are the farthest man-made objects away from Earth, and have been sailing along for 43 years, neither of them is anywhere near leaving the solar system yet.

Yes, we've sent artificial probes past the Sun, the Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto, several asteroids, several comets, and past the Kuiper belt, we're still thousands of years from leaving the solar system, and millions of years from reaching the next nearest star ... even if the Voyagers don't get pulverized into dust by meteoroids and radiation before they get there.

(a) The equilibrium temperature of the system is 0°C.

(b) There is no unmelted ice when the system reaches equilibrium.

The three ice cubes have a total mass of 3 * 111.0 g = 333 g. The water has a mass of 0.840 kg = 840 g. The specific heat capacity of water is 4.184 J/g°C. The latent heat of fusion of water is 333.55 J/g.

When the ice cubes are added to the water, the ice cubes will absorb heat from the water until they reach 0°C. Once the ice cubes reach 0°C, they will begin to melt. The heat required to melt the ice cubes will come from the water.

The water will continue to lose heat until all of the ice cubes have melted. The total heat required to melt the ice cubes is:

Q = m * Lf

Q = 333 g * 333.55 J/g

Q = 111,476 J

The total heat lost by the water is:

Q = m * c * ΔT

Q = 840 g * 4.184 J/g°C * (21.0°C - 0°C)

Q = 75,056 J

Since the heat lost by the water is equal to the heat required to melt the ice cubes, the equilibrium temperature of the system is 0°C. At 0°C, the water will be in equilibrium with the ice. There will be no unmelted ice when the system reaches equilibrium.

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Answer:

Spheres

Explanation:

Points charges are the collection of charges which are located very large distance from each other.

Now as they are approximately equidistant like radius of circle or spheres they are to be spherical.

Answer:

fretillization

because when the sperm meets the egg it fertilize the egg.

Answer:

conduction i think

Explanation:

Answer:Conduction

Explanation:

Answer:

the answer is B

Explanation:

because i had this question in 8th grade