The angular resolution of the largest single-dish radio telescope in the United States, the 100 m Green Bank Telescope, is closest to________ when it operates at a wavelength of 20 cm.

Undergraduate programs can be found in a variety of fields, including business, technology, science, and engineering, as well as medicine and the humanities. They normally run four years.

Courses in medicine and dentistry can be completed in up to five years. In China, there are 13 statutory categories of academic degrees, including those in economics, law, education, fine arts, history, science, engineering, and medicine. These categories include bachelor's, master's, and doctoral degrees. When they enter college, more and more Chinese students are opting to study abroad. However, Chinese parents believe that the Chinese educational system is the greatest in the world at the elementary, middle, and high school levels.

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About 4.5 billion years ago, a dense cloud of interstellar gas and dust gave rise to our solar system. The supernova shockwave from a nearby exploding star, or supernova, may have caused the cloud to collapse.

Within the initial 10 million years of the solar system's formation, Jupiter and Saturn are assumed to have formed first and fast. Rocky planets start to develop in the warmer, star-closer regions of the disk. There isn't much gas left for the terrestrial planets to accrete after the formation of the icy giants.

Let's, therefore, travel back in time more than 4.6 billion years to the time before Earth, Sun, and even Solar System existed. We were surrounded by gas and dust, most likely in one of the spiral arms. Do you want to know how it appeared? Your favorite Hubble Space Telescope images should be helpful.

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Our solar system was created from a massive cloud of interstellar gas and dust some 4.5 billion years ago. The collapse of the cloud may have been triggered by the supernova boom from a nearby exploding star.

Jupiter and Saturn are believed to have formed initially and quickly during the first 10 million years of the solar system's creation. In the warmer, star-closer parts of the disc, rocky planets begin to form. After the development of the icy giants, there is not much gas left for the terrestrial planets to accrete. Therefore, let's go back in time more than 4.6 billion years to the period before the Earth, Sun, and even the Solar System were created. Dust and gas were all around us called supernova.

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The work done in kicking the ball is 1173 J and the net force is 36.70 N. Then the displacement of the soccer ball is 31.9 m.

Force is an external agent acting on an object to change its motion or to deform it. When a force applied on an object results in a displacement, it is said to be work done on the object.

Work done = F.ds

The power in a process is the product of work done and time.

Given that, power P = 2229 W

time = 1.9 s

work done = P/t = 2229 W/1.9 s = 1173 J

Then net force = 64 sin 35 = 36.70 N

displacement = work done/ force

   = 1173 J / 36.70 N = 31.9 m

Therefore, the displacement of the soccer ball is 31.9 m.

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At constant speed, the Bird takes 40 hours.

1800/45 = 40

We know that,

Speed = Distance traveled/time

Speed = 45miles/hr.

Distance traveled = 1800 miles.

Time = ? or x.

Since the unit of distance and speed are same we do need to convert anything. Hence, we can substitute the values directly.

we get,

Speed = Distance traveled/ time.

45= 1800/x.

then,

x= 1800/45

x= 40.

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Answer:

Distance = 425 m

Displacement = 125 m

Explanation:

Distance =  total length traveled =  150 m + 275 m = 425 m

Displacement =  distance from point of origin (school) to end point (street corner) = 275 m - 150 m = 125 m

Note:  You walk to the gas station, turn around and walk in a straight line back to school then another 125 m to the street corner

Applying the momentum principle, v = 0.08 m/s.

The Momentum Principle controls how a system moves. This theory explains how a system modifies its motion in response to a net force. We note that there is no net force acting on objects moving in a straight path at constant speed.

p = m v . The equation demonstrates that momentum is directly related to an object's mass (m) and velocity (v). As a result, an object's momentum increases with increasing mass or velocity. The momentum of a large, swift object is larger than that of a small, slower object.

80 kg for the quarterback and 0.43 kg for the ball.

initially both together, but with a horizontal velocity of zero.

Final momentum is equal to 15*0.43 - 80v starting momentum (law of conservation of momentum)

6.45 = 80v

v = 0.08 m/s

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Frequency is the aspect of sound that has to do with clarity, nasality, or reediness.

Frequency is defined as the rate of changes in current trajectory per second. It is given in hertz (Hz), an internationally recognized measurement unit. Every cycle per second is equal to one hertz. One pulse every second is equal to one hertz (Hz). A cycle is a complete alternate or voltage wave.

Since audio is a waveform, it possesses all the characteristics ascribed to waves, and these characteristics are the four factors that describe all sounds. In terms of music, they are pitch, dynamism, tone (tone color), and endurance. They are the frequency, intensity, wave shape, and duration.

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Answer:

64.8 km

Explanation:

speed = distance/time

Distance = speed x time

(81 km)(1000 m/km) = 81,000 m

1 hr = 60 min

Distance = (81000 m/60 min)(48 min) = 64800 m = 64.8 km

Answer:

2264 N

Explanation:

Because the apparent weight of an object when it is submerged in water is equal to its actual weight minus the weight of the volume of water that it displaces.

The weight of the object is 1400 kg x 9.81 m/s² = 13 774 N.

The volume of the box is 2.00 m x 3.00 m x 0.200 m = 1.20 m³

The weight of the water displaced is 1.20 m³ x 1000 kg/m³ x 9.81 m/s² = 11 510 N

Therefore, the apparent weight of the box when submerged in water is 13 774 N - 11 510 N = 2264 N.

Answer:

1800W

Explanation:

A TV requires a potential difference of 11.5V and a current of 10A. It uses a transformer to produce the correct potential difference from the mains supply. If the mains supply is 230V, what current does it provide to the transformer? The required electrical power output of a step-up transformer is 1800W.

The right answer is (d). Static friction can cause a system to do positive, negative, or even zero work.

Does static friction ever produce zero work?

At essence, static friction can also be active when a body is in equilibrium, when there is no movement and no static frictional work to be done.

Can static friction provide useful results?

This is because our force is opposed by the force of static friction. However, since the block stays there, there is no displacement. Therefore, friction produces no work. Friction can therefore produce positive, negative, or no work.

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Answer:

Work done= 85000 J

Explanation:

Work done = mass x acceleration due to gravity (constant at 10) x height

W= 500 x 10 x 12+5.0

W= 500 x 10 x17

W= 85000 J

500 kg of water are raised by the water pump from a 12 m deep well onto a reservoir that is 5.0 m above the earth, and this process requires -34,335 J of work.

In physics, work is defined as the energy transferred to or from an object by means of a force acting on the object, causing it to move in a certain direction. Work is a scalar quantity and is represented by the symbol "W". The magnitude of work is given by the product of the force acting on an object and the displacement of the object in the direction of the force.

In other words, work is done when a force acts on an object and causes it to move a certain distance in the direction of the force. The amount of work done is determined by the magnitude of the force, the displacement of the object, and the angle between the force and the displacement.

The SI unit of work is the joule (J), which is defined as the work done when a force of one newton (N) is applied over a distance of one meter (m) in the direction of the force.

Here in the Question,

The work done by the water pump is equal to the product of the force applied by the pump and the distance over which the force is applied. In this case, the force applied by the pump is the weight of the water being lifted, and the distance over which the force is applied is the vertical distance from the bottom of the well to the top of the reservoir.

First, we need to calculate the weight of the water being lifted:

mass of water = 500 kg

acceleration due to gravity = 9.81 m/s^2

weight of water = mass of water x acceleration due to gravity

= 500 kg x 9.81 m/s^2

= 4,905 N

Next, we need to calculate the vertical distance over which the force is applied:

vertical distance = height of reservoir - depth of well

= 5.0 m - 12 m

= -7.0 m (negative sign indicates that the direction of the force is opposite to the direction of the displacement)

The work done by the pump is given by:

work = force x distance x cos(theta)

where theta is the angle between the force and the displacement. In this case, theta is 180 degrees, since the force is acting in the opposite direction to the displacement.

So, the work done by the pump is:

work = force x distance x cos(theta)

= 4,905 N x (-7.0 m) x cos(180 degrees)

= -34,335 J

The negative sign indicates that the work done by the pump is negative, which means that the pump is actually doing work against the gravitational force. This is because the water is being lifted from a lower level to a higher level, and the pump has to overcome the gravitational force acting on the water in order to do so.

Therefore, the work done by the water pump in raising 500 kg of water from a 12 m deep well onto a reservoir 5.0 m above the ground is -34,335 J.

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Answer:
Distance traveled by the car during the 4th second is 120 meters.

If this help please set brainliest.

Explanation:

To find the distance traveled by the car during the 4th second, you need to know the acceleration of the car. The acceleration is the change in velocity (in this case, the change in speed) over time. Since the car's speed increased from 20 m/s to 40 m/s in 10 seconds, the acceleration is (40-20)/10 = 2 m/s^2.

To find the distance traveled during the 4th second, you can use the formula d = vt, where d is the distance traveled, v is the velocity (in this case, the average velocity during the 4th second), and t is the time traveled (in this case, 4 seconds).

The average velocity during the 4th second is simply the average of the initial and final velocities, which is (20+40)/2 = 30 m/s. Plugging this value into the formula, we get d = 30 m/s * 4 s = 120 meters. Therefore, the distance traveled by the car during the 4th second is 120 meters.

Given,

u=8 m/s

v=16 m/s

t=10 sec

(i) using equation

a= v-u/t

= (16-8)

= 8/10

= 0.8 / ms^2

= acceleration

(ii) Displacement

S = ut + 1/2 at^2

= 8×10+1/2×0.8× (10)^2

= 80 + 0.4 × 100

= ( 80 + 40) m

S = 120 m

Part A: The molar specific heat at constant volume for a mixture of gases can be calculated using the formula:

Cv,mixture = (n1Cv,monatomic + n2Cv,diatomic) / (n1 + n2)

where Cv, monatomic, and Cv, diatomic are the molar-specific heats at constant volume for the monatomic and diatomic gases, respectively.

Part B: If n1 = 0, the expression simplifies to Cv,

mixture = (0Cv,monatomic + n2Cv,diatomic) / n2 = Cv,diatomic. Similarly, if n2 = 0, the expression simplifies to Cv,mixture = (n1Cv,monatomic + 0Cv,diatomic) / n1 = Cv,monatomic.

This shows that the expression behaves as expected by approaching the molar-specific heat at the constant volume of one of the gases as the number of moles of the other gas approaches zero.

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To solve this we must be knowing each and every concept related to velocity. Therefore, the missing terms we have to know is the initial velocity, distance and time taken.

It is a vector assessment of an object's rate of motion and direction of motion. As a result, in order to calculate velocity using this definition, we must be familiar with both magnitude and direction.

The original velocity V₁ = 27 m/s, and press the brakes and the car has an acceleration a = -8.4 m/s2 (the sign - indicates that the acceleration vector in the opposite direction of the velocity vector of the car). The missing terms we have to know is the initial velocity, distance and time taken.

Therefore, the missing terms we have to know is the initial velocity, distance and time taken.

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Answer: okay thx

Explanation:

It's all about Inertia! Inertia says an object, the egg in this case, will stay at rest, unless an outside force acts upon it, your hand in this case. When you move the pie pan with your hand, gravity pulls the egg straight into the glass of water.

Check Writing QualityThe Egg-Drop Device Process The process of dropping an egg is more complex than an average person would believe. The egg-dropping process requires knowledge of history, engineering, mathematics, and physics. To fully understand how an egg drops, the ability of the history of physics, the engineering behind a device, and the mathematics and physics of free-fall are needed.

Physics originates in its classical form in Ancient Greece. Thales was the first physicist. The theories Thales made gave the discipline of physics its name. Thales believes that the world, although made of many materials, was made of only one element: water. The interaction of water between the phases of solid, liquid, and gas gives materials different properties.

Copernicus discovers that the Sun was the center of the solar system, not the Earth. Kepler develops the three laws of planetary motion. Galileo discovers that the natural state of an object is either at rest or moving with a constant speed, for as long as no unbalanced forces are acting on the object. Galileo reasons that if friction and other forces were balanced, an object would continue along at constant speed.

The conceptual side of egg-dropping requires knowledge of free-fall physics. The most basic formula to know is v = d/t, or velocity is equal to the distance divided by the elapsed time. In the test simulation, the device is dropped at a distance of 75 feet or 22.86 meters, and the average elapsed time is 2.223 seconds. Using these two values, substituted into the formula, the velocity is determined to be 10.2834 meters per second. Velocity is a vector quantity with direction and magnitude. In the case of the device, the direction is directly down or 90 degrees below the horizontal and the magnitude is 10.2834. After solving for velocity, one can get the acceleration of the device as it drops from 75 feet. To calculate acceleration, the formula a = v / t, or in other words, acceleration is equal to velocity divided by the elapsed time.

The Egg Drop project is a highly-versatile activity that can be used to introduce students to physics, materials science, and fluid dynamics. For elementary and middle school classes, the students have a wide range of materials to 'buy' with their allotted budgets.

Answer: 1. Make a triangle out of a straw and tape it together.

2. Repeat this two more times.

3. Tape all 3 triangles together around the egg to make a pyramid shape.

4. Decide how else to cushion the egg - for example: using more straws.

5. Spread the painter's tarp on the floor.

Lock any windows and doors that are open. Head to the centre or basement of the structure. The recommended course of action is to stay as far away from the building's walls and top as you can since radioactive.

If radon gas is allowed to build up in a residence, it not only poses a health concern to uranium miner but also to homeowners. It is typically the biggest source of exposure to natural radiation.

We have been surrounded by radiation throughout our development. Therefore, the low amounts we are exposed each day are something our bodies are built to handle. However, excessive radiation can harm tissues by altering cell structure and DNA. Cancer is only one of the significant health issues this can lead to.

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The mass of the bus that accelerates from 10m/s to 15 m/s is 600 kg.

Mass is the quantity of matter a body contains.

To calculate the mass of the bus, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the mass of the bus is 600 kg.

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The correct statement is D. The magnitude of the electric force exerted on B is doubled because the electric field at the position of A is doubled.

When two charged particles, such as A and B, are held some distance apart, they exert an electric force on each other due to their charges. The strength of this force is determined by the amount of charge on each particle and the distance between them. This force is called Coulomb force and it follows the Coulomb's law. The Coulomb's law states that the force between two point charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.

When the charge on A is doubled, the electric field at the position of A increases, and as a result, the force exerted on B also increases. This is because the electric field at the position of A is what causes the force on B. The magnitude of the electric force on B is proportional to the product of the charges of A and B, and inversely proportional to the square of the distance between them. So as the charge on A doubles, the force on B also doubles.

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According to Markovnikov's rule, the hydrogen in hot (water) adds to the carbon in the double bond that has more carbon–hydrogen bonds.

The hydroxyl group (OH) bonds to the carbon that has the greater number of carbon–carbon bonds, while the hydrogen bonds to the carbon on the other end of the double bond, that has more carbon–hydrogen bonds. The chemical basis for Markovnikov's Rule is the formation of the most stable carbocation during the addition process. Markovnikov rule is the rule in the chemistry that we use in the solvation and addition of the hydrogen and carbon and vice versa to each other. this is the rule in the hydrocarbon thing and we can use it in the carbon and hydrogen bonding. by this primary information we can firmly consider that according to Markovnikov's rule, the hydrogen in hot (water) adds to the carbon in the double bond that has more carbon–hydrogen bonds.

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In this situation, the normal force on the box of cereal would be equal to its weight, or 3.8 N. Correct answer: letter A.

This is because the box of cereal is at rest on the kitchen counter, meaning that the normal force exerted by the counter on the box is equal and opposite to the gravitational force exerted on the box by the Earth.

This means that the net force on the box is 0 N, and so the normal force must be equal to the box's weight in order to balance out the gravitational force and keep the box at rest.

The calculation to determine the normal force on the box of cereal is relatively straightforward. First, we need to calculate the weight of the box of cereal, which is equal to its mass multiplied by the acceleration due to gravity (9.8 m/s2). In this case, the weight of the box of cereal is 3.8 N.

As the box is at rest on the kitchen counter, the normal force exerted by the counter on the box must be equal and opposite to the gravitational force. This means that the normal force on the box of cereal is also 3.8 N, which is equal to its weight.

A box of cereal with a weight of is at rest on the kitchen counter. What is the normal force that the counter exerts on the box of cereal?

A) 3.8 N

B) 0.39 N

C) 6.0 N

D) 37 N

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The force pushing the 5kg rifle back when a 5g bullet is fired from it is 25*10^5N.

The mass of the bullet m= 5g.The constant force acting on the bullet F=2500N.So the acceleration of the bullet a=F/m ,a=2500/0.005 =5*10^5m/s^2.

According to Newton's law of motion, each action force has an equal and opposite reaction force.

Now the force pushing the riffle in the backwards direction  F1=M*(F/m). Now the mass of the rifle M=5kg. So the force acting on the riffle , F1=5*(2500/0.005)=25*10^5 N.

His third law argues that there is an equal and opposite response to every action (force) in nature. When object A pulls on item B, object B pulls back on object A with an equal and opposing force. In other words, interactions lead to forces.

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The solution of Al(ClO4)3 will have the lowest vapor pressure as it contains the greatest number of particles. Solution of sucrose will have highest vapor pressure because it contains only one particle in solution.

Vapor pressure is the ease with which a substance is converted from liquid to gas. Higher is the vapor pressure, more easily the solution is converted from liquid to gas and vice versa.

The magnitude of intermolecular forces and number of particles in a solution plays an important role in determining vapor pressure. The solution of Al(ClO4)3 has the lowest vapor pressure as it has greatest number of particles and solution of sucrose will have highest vapor pressure because it contains only one particle in solution.

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Note: The question given on the portal is incomplete. Here is the complete question.

Question: A 0.100 m solution of which one of the following solutes will have the lowest vapor pressure? Which will have have the highest vapor pressure?

A) KClO4 B) Ca(ClO4)2 C) Al(ClO4)3 D) Sucrose E) NaCl

The Earth's temperature is ultimately controlled by atmospheric carbon dioxide, which functions as a thermostat. the quick rise in carbon dioxide levels in the atmosphere brought on by industrial activities.

The Earth's greenhouse effect is mostly caused by water vapor and clouds, but a recent atmosphere-ocean climate modeling research reveals that the amount of carbon dioxide in the atmosphere is ultimately what determines the planet's temperature.

When trying to comprehend Earth's climate, it's also a good idea to start with the distance between Earth and the Sun. Although it is not the only one, it is the primary factor controlling the planet's average temperature.

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The complete Question is :

Which of the following can act like a long-term "thermostat" for the earth's average temperature?

A. average daily temperature

B. degrees in Fahrenheit

C. the carbon dioxide cycle

A compound decomposes by first-order process. If 26 % of the compound decomposes in 60 minutes, then the half-life of the compound is 138 minutes.

The time required for a quantity (of substance) to reduce to half of its initial value is called half life.

Integrated rate law for first order kinetics:

At = [Ao] e^-kt

[At] is concentration at time t

[Ao] is initial concentration

Given, 26 % is decomposed which means that 0.26 of  is decomposed. So, now;  1 - 0.26 = 0.74

Given, t = 60 min

[At/Ao] = e^-kt

0.74 = e^-k * 60

ln 0.74 = - k * 60

k = 0.005018 min⁻¹

Half life, t1/2 = ln2/k

= ln 2/ 0.005018

t 1/2 = 138 min

The half-life of the compound is calculated as 138 minutes.

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The torque produced by a motor overload that pulls the rotor out of synchronization is referred to as synchronous torque.

Torque is nothing but the measure of force which causes an object to rotate about an axis.

A rotor is a moving component in the electric motor.

It is the type of torque acting on the shaft of a synchronous machine when the rotational speed of the rotor deviates from the synchronous speed by keeping the machine in synchronism.

The pull out torque is the maximum value of torque that allows a synchronous motor to remain in synchronism without pulling out of synchronism.

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The electric potential in a region of space varies as v=by/(a2+y2) is derived to be (y2-a2)b/(a2+b2)^2.

Electric potential is the effort required to transport a unit charge from one point to another in the presence of an electric field.

Electric potential = E => dV/dx

                            E(x)  => d(by/a2+y2)/dx =>0

                           E(y)   => d(by/a2+y2)

                                   => (y2-a2)b/(a2+b2)^2

Maxwell's equations show that there is indeed an electric field in empty space. Maxwell was the first to demonstrate that the propagation speed of electromagnetic waves is comparable to that of light speed, leading to the conclusion that visible light and EM waves are identical.

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Answer:

The period will decrease.

T (period) = 2 π (L / g)^1/2      period of simple pendulum

As the length of a simple pendulum decreases its period of motion will also decrease (it will swing faster)

When observed after 3 minutes, both pieces of ice are melting at a nearly same rate; however, after extended observation, it can be seen that the piece of ice from the plastic bag melted about faster than the piece of ice from the ice cube tray. This is likely due to the fact that plastic is a better insulator and was able to retain more of the cold temperature from the freezer.