There are two processes - let us call them P and Q. The similarity between P and Q is that both represent a change from liquid state to gas state. The difference is that in P, change to vapour occurs only at the liquid surface; in Q, it occurs throughout the liquid. What are P and Q respectively

Answer:

The field will remain the same

Explanation:

This is because electric field given as

E1= kq1/r²

And that of second charge

E² = kq2/r²

Is not affected by the size of the second charge q2

Answer: A room lined with soft materials that absorb sound.

Explanation:

Just did it :))

The magnitude of the transfer function is equal to unity when the gain of the system is equal to 1 or 0dB. This occurs at the system's resonant frequency or cutoff frequency depending on the type of system.

The resonant frequency is the frequency at which the system's response is maximum and occurs in systems with a natural frequency such as RLC circuits. The cutoff frequency is the frequency at which the system's response begins to roll off and occurs in systems with a bandwidth such as filters.

Therefore, to find the frequencies at which the magnitude of the transfer function is equal to unity, we need to determine the resonant or cutoff frequencies of the system. This can be done by analyzing the transfer function and identifying the frequency-dependent terms.

Once the resonant or cutoff frequencies have been determined, we can convert them to radians per second by multiplying by 2π. We express our answers in ascending order separated by a comma and to three significant figures.

In summary, the frequencies at which the magnitude of the transfer function is equal to unity depend on the resonant or cutoff frequencies of the system and can be found by analyzing the transfer function. We then convert these frequencies to radians per second to express our answers.

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0.160H inductor is connected in series with a 91.0? resistor and an ac source. The voltage across the inductor is vL is 485 r/s.

To find the voltage vR across the resistor, we can use Ohm's Law, which states that \(vR = iR * R\), where iR is the current through the resistor. Since the inductor and resistor are in series, they carry the same current.
We can find the current through the circuit using the voltage across the inductor and the impedance of the circuit. The impedance Z of a series circuit with a resistor and inductor is given by:
\(Z = \sqrt{(R^2 + XL^2)}\)
where XL is the inductive reactance, which is equal to 2πfL in radians per second, and f is the frequency of the AC source.
In this case, the frequency is given as 485 radians per second, so XL = 2π(485)(0.160) = 49.2 ohms.
The impedance of the circuit is then:
Z = \(\sqrt{ (91.0^2 + 49.2^2)}\) = 105.8 ohms
The current through the circuit is:
i = VL/Z = (11.5V)/105.8 ohms = 0.108 A
Now we can find the voltage across the resistor:
vR = iR * R = (0.108 A)(91.0 ohms) = 9.83 V
Therefore, the expression for the voltage vR across the resistor is:
vR = (VL/Z) * R = VL * (R/sqrt(R^2 + XL^2)) * sin(ωt)
where ω = 485 radians per second.

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To rank car #1's speed relative to the ground at the lettered times (A through E) from largest to smallest, we need more information on the speeds at those specific times.

The ranking for the speed of car #1 relative to the ground was determined: The ranking was determined based on the given information about the speed of the car at each lettered time. The speed of the car at time A is the highest, followed by time B and so on. Thus, the ranking was established according to the given values.

The necessary information on the speeds of both cars at the lettered times, we cannot determine the ranking of car #1's speed relative to car #2. To rank the distance between the cars at the lettered times (A through E) from largest to smallest, we need more information on their positions at those specific times. We cannot determine the ranking for the distance between the two cars without the necessary information on their positions at the lettered times.

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In conclusion, the comparison and ranking of speed or distance between two cars at different time points depends on the specific data given at those points, and analyzing their changes over time will provide the best answer.

Unfortunately, I can't give a specific rank or explanation without a graph, diagram, or set of data points to use for reference. However, to answer such a question, you would need to compare the speed, relative movement, and distance between both cars at each mentioned time point.

For example, suppose at time A, car #1 is moving faster than car #2. You'd rank car #1's speed greater at time A. However, if at time B, car #1 is stationary while car #2 is still moving, you'd rank car #1's speed lowest at time B.

In terms of the speed of car #1 relative to car #2, it depends on their comparison speed at each point in time. If at one point, both cars are moving the same speed in the same direction, they're considered at relative rest, so their relative speed to each other is zero.

The distance between two cars would be determined by subtracting the distance covered by car #1 from car #2. The larger distance it covers, the greater the gap between the two cars.

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The energy required to heat 600g of iron from 25°C to 60°C is 8,760 Joules. to calculate this, we can use the equation:

Energy = mass × specific heat capacity × temperature change

Given:

Mass (m) = 600g

Specific heat capacity (c) = 0.41 J/g°C

Temperature change (ΔT) = 60°C - 25°C = 35°C

Plugging these values into the equation, we get:

Energy = 600g × 0.41 J/g°C × 35°C = 8,760 Joules.

Therefore, 8,760 Joules of energy is required to heat 600g of iron from 25°C to 60°C.

In the calculation, we use the formula for calculating the energy required to heat a substance: Energy = mass × specific heat capacity × temperature change. We are given the mass of iron (600g), the specific heat capacity of iron (0.41 J/g°C), and the temperature change (35°C). By substituting these values into the equation, we find that 8,760 Joules of energy is needed to heat the iron from 25°C to 60°C.

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The length of the board of wood expressed in meters is 0.616 m.

To convert 61.6 cm to meters, we can use the formula:

Length in meters = Length in centimeters ÷ 100

Plugging in the given value, we get:

Length in meters = 61.6 cm ÷ 100 = 0.616 m

Wood is a natural composite material made of cellulose fibers, lignin, and hemicelluloses, which are held together by a complex network of bonds. The cellulose fibers provide strength and rigidity, while the lignin acts as a binder, holding the fibers together. The hemicelluloses are responsible for the elasticity and flexibility of the material.

Wood has many interesting physical properties that make it a valuable material in a wide range of applications. For example, it is a good insulator, making it useful for construction and electrical applications. It is also a good acoustic absorber, making it useful in musical instruments and recording studios.

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Complete Question:

A board of wood measures 61.6 cm as that length is expressed in meters

Answer:

Explanation:

An Ideal Machine is a machine which gives 100 percent efficieny that is entire input energy is converted into output energy.

however this is not possible as some energy is lost due to friction, imperfect components and all. Therefore no machine is Ideal machine.

The distance between the two balls of mass 0.872 kg is 0.76 m.

Distance is the total length between two point.

To calculate the distance between the twp balls, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the distance between the two balls is 0.76 m.

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Given:

• Acceleration of rocket = 28.0 m/s²

• Mass of astronaut = 95 kg

Let's find the apparent weight of the astranaut.

In a direct rocket motion, as we are coming towards the Earth the weight reduces while as the rocket is going up, you feel more weighted.

Now, to find the apparent weight of the astranaut, apply the formula:

Where:

Aw is the apparent weight

m is the mass = 95 kg

g is acceleration due to gravity = 9.8 m/s²

a is the acceleration of the rocket = 28.0 m/s²

Thus, we have:

Therefore, the apparent weight of the astranaut is 3.591 kN

ANSWER:

3.591 kN

The correct statement that explains the observation using Newton's laws is objects at rest tend to remain in their current state of motion unless acted upon by an unbalanced force, but objects in motion require a continual application of force to stay in motion. Here option A is correct.

According to Newton's first law of motion, an object will continue moving at a constant velocity in a straight line unless acted upon by an external force. In this case, when the cannonball is shot horizontally from the cannon, it initially possesses a forward velocity due to the force applied by the cannon. However, once the cannonball is in motion, the only forces acting on it are gravity and friction.

Gravity acts vertically downward, causing the cannonball to accelerate downward. Friction acts horizontally in the opposite direction to the motion of the cannonball. As the cannonball moves forward, friction opposes its motion and gradually slows it down.

Since there is no force continuously propelling the cannonball forward, and the forces of friction and gravity act on it, the cannonball eventually comes to a stop and falls to the ground. Hence option A is correct.

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If an early frost destroys most of the apple crop, the equilibrium price of an apple is likely to increase.

An early frost that damages a significant portion of the apple crop would result in a decrease in the supply of apples. When the supply decreases, while demand remains constant or even increases, it creates a situation where the quantity demanded exceeds the quantity supplied. This imbalance in the market typically leads to an increase in the equilibrium price of apples.

With a reduced supply of apples, consumers would still desire to purchase them at the same or even higher quantities, especially if there are no close substitutes available. As a result, buyers may be willing to pay a higher price to secure the limited supply of apples. This increased demand coupled with the decreased supply causes the equilibrium price to rise.

Moreover, the extent of the increase in price will depend on the severity of the frost damage and the elasticity of demand. If the damage is severe and there are no alternative sources of apples, the price increase may be significant. However, if there are other regions or countries with unaffected apple crops that can fulfill the demand, the price increase may be relatively moderate.

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Answer:

105N

Explanation:

force = mass x acceleration

force without the 25N = 40 x 2

= 80N

On top of this, he has to counteract the 25N so the actual force is 80N + 25N which is 105N

Answer:

a. ω = 628.3 rad/s

b. v = 1256.6 m/s

Explanation:

a. La velocidad angular (ω) se puede calcular de la cantidad de vueltas que da el aspar por unidad de tiempo:

\( \omega = 1 \frac{vuelta}{0.01 s} \cdot \frac{2\pi rad}{1 vuelta} \)

\( \omega = 628.3 \frac{rad}{s} \)

b. La velocidad lineal (v) se calcula usando la siguiente ecuación:

\( v = \omega*r \)

En donde:

r: es el radio = 2 m

\( v = 628.3 rad/s*2 m = 1256.6 m/s \)

Espero que te sea de utilidad!        

Answer:

200 kg

Explanation:

Answer:

m= 50

Explanation:

m=f/a    this is the formula for mass

m= 25/0.5    you substitute the numbers with their variables   they you divide them to get the mass

m= 50

By extension, Pauli exclusion principle indicates that one orbital can hold a maximum of two electrons.

According to Pauli's Exclusion Principle, no two electrons in the same atom can have values for all four of their quantum numbers that are exactly the same alternatively put two electrons cannot share an orbital with more than one other electron, and their spins must be in opposition.

According to the Pauli exclusion, no two electrons can have the exact same set of quantum numbers. When S = 1/2, 3/2, or 5/2, identical particles with half-integral spin are considered by the Pauli principle. In other words, each electron need to have a distinct singlet state.

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a) The tension in the bowstring is approximately 440.5 N.

b) The spring constant of the stretched string is approximately 1250 N/m.

a) To determine the tension in the bowstring, we can consider the vertical and horizontal components of the applied force. The vertical component is given by Tension * sin(θ), where θ is the angle between the bowstring and the vertical. In this case, the vertical component is Tension * sin(35°). Since the vertical component should balance the weight of the bowstring, we have Tension * sin(35°) = weight of bowstring. The weight of the bowstring is equal to its mass times the acceleration due to gravity, which can be approximated as 9.8 m/s^2. Solving for Tension, we get Tension = (weight of bowstring) / sin(35°) = (375 N) / sin(35°) ≈ 440.5 N.

b) If the applied force is replaced by a stretched string, we can consider the spring constant of the string. The spring constant, denoted by k, relates the force exerted by the spring to its displacement from its equilibrium position. In this case, the displacement of the spring is given as 30.0 cm (or 0.30 m). The force exerted by the spring can be calculated using Hooke's Law: Force = k * displacement. Rearranging the equation, we have k = Force / displacement. Since the force exerted by the spring is equal to the tension in the bowstring, we can substitute the tension value we calculated in part a) to find the spring constant: k = Tension / displacement = 440.5 N / 0.30 m ≈ 1250 N/m. Therefore, the spring constant of the stretched string is approximately 1250 N/m.

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Ocean thermal energy conversion (OTEC) is a technology that uses the temperature differences between warm surface water and cold deep water in the ocean to generate electricity. The temperature difference can be significant, up to 20 degrees Celsius or more in some places, and this temperature gradient can be harnessed to drive a power-generating turbine.

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The mass percentage of calamine in the solution is 10.93%

To find the mass percentage of calamine in the solution, we need to first identify the mass of calamine present in the solution and the total mass of the solution. In the given problem, we are given that the mass of calamine in the solution is 38.2 g, and the total mass of the solution is 349 g.

Mass percentage = (mass of calamine / total mass of solution) x 100%

Mass of calamine = 38.2 g

Total mass of solution = 349 g

Mass percentage = (38.2 g / 349 g) x 100%

Mass percentage = 10.93%

This means that out of the total mass of the solution, 10.93% of the mass is due to calamine.

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Answer:

D: The particles emitted when atoms collide

Explanation:

Just took the test

The compact muon solenoid used to study when the  particles emitted when atoms collide. Option D is correct.

A coil of wire that carries an electric current is a solenoid. A solenoid is an electromagnet formed by a helical coil of wire. Which generates a magnetic field when an electric current is passed through the coil .

A solenoid is a form of coil that produces a magnetic field when the electric current is passed through it. A solenoid is created when a conductive wire is used to make a loop.

The compact muon solenoid used to study when the  particles emitted when atoms collide.

Hence, option D is correct.

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Answer:

All of the above is the answer

Answer:

10j

Explanation:

2x5=10

Violet pulls a rake horizontally on a frictionless driveway with a net force of 2.0 N for 5.0 m.

How much kinetic energy does the rake gain?

Answer: 10 J

A truck enters a highway driving 60 mph A car enters the highway at the same place 0 nutes later and dives 72 mph in t The car will pass the truck in (Round to the nearest minute) minutes same direction From So the car enters the highway,However, this contradicts the information given that the car enters the highway 0 minutes later than the truck.

To determine how long it will take the car to pass the truck, we can set up an equation based on their relative speeds and distances traveled.

Let's assume that the car passes the truck after time 't' minutes.

In 't' minutes, the truck will have traveled a distance of 60 × (t/60) = t miles.

The car enters the highway 0 minutes later and travels at a speed of 72 mph. Therefore, when the car passes the truck, it will have traveled a distance of 72 × (t/60) = 1.2t miles.

To find when the car passes the truck, we can set up the following equation:

t = 1.2t

Simplifying the equation, we get:

t - 1.2t = 0.2t

0.2t = 0

This equation does not yield a valid solution since it implies that the time required for the car to pass the truck is 0 minutes. However, this contradicts the information given that the car enters the highway 0 minutes later than the truck.

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Answer:

C

Explanation:

Mass remains constant whilst weight varies based on the gravitational field strength. Weight is actually a measure of how much gravity affects the mass of an object.

Answer:

C

Explanation:

The mass of the object is the same wherever it is. Weight is measured by the force exerted on the mass by the amount of gravity.

When the current in a circuit increases, the resistance in that circuit decreases.

The opposition that a substance provides to the flow of electric current is referred to as resistance. The uppercase letter R represents it.

The ohm is the standard unit of resistance, which is sometimes written as a word and occasionally represented by the capital Greek letter omega Ω.

In summary, the property of a conductor that opposes the flow of electric current is defined as resistance. It is also described as the voltage applied divided by the current flowing through it.

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Answer:

ε = -0.0589V = -58.9mV

Explanation:

In order to calculate the induced emf in the coil, you use the following formula:

\(\epsilon=-N\frac{d\Phi_B}{dt}=-N\frac{d(SBcos\alpha)}{dt}\)         (1)

ε: induced emf = ?

N: turns of the coil = 28

ФB: magnetic flux trough the coil

S: cross sectional area of the circular coil = π.r^2

r: radius of the cross sectional area of the coil = 4.40cm = 0.044m

B: magnetic field

α: angle between the direction of the magnetic field and the direction of the normal to the cross area of the coil = 0°

You take into account that the area is constant respect to the magnetic field that cross it. Only the magnetic field is changing with time. The magnetic field depends on time as follow:

\(B(t)=0.010t+0.040t^2\)           (2)

You replace the expression (2) into the equation (1), evaluate the derivative, and replace the values of the other parameters for t =4.20s:

\(\epsilon=-NS\frac{dB}{dt}=-NS\frac{d}{dt}[0.010t+0.040t^2]\\\\\epsilon(t)=-NS(0.010+0.080t)\\\\\epsilon(t)=-(28)(\pi(0.044m)^2)(0.010T/s+0.080T/s^2(4.20s))\\\\\epsilon(t)=-0.0589V=-58.9mV\)

The induced emf in the coil is -58.9mV

Answer:

B. 3

Explanation:

Answer: when a object gets slowed down, it's force is either going into friction and drag, if it's on the ground, and weight+drag+friction, if it's in the air.

Explanation: