) A queuing model that follows the M/M/1 (single channel) assumptions has λ = 10 per hour and μ = 2.5 minutes. What is the average time in the system (in minutes)? Group of answer choices: .41 minutes .5 minutes 25 minutes 1.78 minutes 4.29 minutes
2)
A waiting-line system that meets the assumptions of M/M/S (multi-channel) has λ = 4 every 12 minutes, μ = 4 minutes, and M = 2. For these values, Po is approximately 0.2, and Ls is approximately 2.4.
What is the average time a unit spends in the queue (in minutes)?
Group of answer choices
A. .053 minutes
B. 3.2 minutes
C. 2.4 minutes
D. .12 minutes
E. 7.2 minutes

If a 1300 kg truck starts at rest and speeds up from 0 to 20 m/s in 4.1 seconds, the power of the truck's engine will be 6.34 x \(10^{4}\).

We have,

Initial velocity = 0

Final vel0city = 20 m/s

Time taken = 4.1s

Power can be calculated as change in kinetic energy per unit time.

Since initial velocity is zero, change in kinetic energy will be equal to final kinetic energy.

Therefore, power = 1/2 mv²/t = 1/2 x 1300 x 20 x 20/ 4.1 = 6.34 x \(10^{4}\) W

Hence, the power of the truck's engine = 6.34 x \(10^{4}\) W

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Molecules of both gases will sometimes gain and sometimes lose momentum, and sometimes gain and sometimes lose kinetic energy. The correct option is d which claims best the collisions between gas x and gas y molecules.

When the samples of gas X and gas Y are mixed together, their molecules will collide with each other. During these collisions, momentum and kinetic energy can be transferred between the molecules.

Since gas X initially has a higher temperature than gas Y, its molecules have higher average kinetic energy. When the molecules of gas X collide with the molecules of gas Y, they can transfer some of their kinetic energy to the gas Y molecules. This transfer of kinetic energy can result in gas Y molecules gaining momentum and kinetic energy.

On the other hand, gas Y molecules can also collide with gas X molecules and transfer some of their kinetic energy to them. This transfer of kinetic energy can cause gas X molecules to lose momentum and kinetic energy.

The specific outcomes of these collisions will depend on factors such as the masses and velocities of the individual molecules involved in each collision. Some collisions may result in a net gain of momentum and kinetic energy for gas X molecules, while others may lead to a net loss. Similarly, gas Y molecules may sometimes gain momentum and kinetic energy, while in other collisions they may lose them.

Overall, it is not accurate to claim that one gas will always gain momentum and kinetic energy while the other always loses. The collisions between gas X and gas Y molecules will be a dynamic process with a mixture of different outcomes, including both gains and losses of momentum and kinetic energy for molecules of both gases.

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Answer:

Explanation:

Given:

F = 300 N

p = 20 N/m²

__________

A - ?

Valid for the area A:

A = F / p

A = 300 / 20 = 15 m²

At the point X after 2 seconds, the stone has a magnitude of velocity equal to 10 m/s, and its direction is purely horizontal.

When a stone is projected horizontally in a vacuum, it only experiences horizontal motion due to the absence of air resistance. The vertical motion is governed by the force of gravity alone. In this scenario, the stone will undergo uniform horizontal motion with a constant horizontal velocity.

Given that the stone is projected horizontally with a velocity of 10 m/s, its horizontal velocity remains constant throughout the motion. After 2 seconds, the stone will have traveled a horizontal distance equal to the product of its horizontal velocity and the time, which is 10 m/s * 2 s = 20 m. Therefore, the stone will be located 20 meters horizontally from the point of projection. Since the stone is moving horizontally, its vertical velocity remains zero throughout the motion. The magnitude of the velocity at this point is equal to the horizontal velocity, which is 10 m/s. However, since the stone is moving horizontally, there is no vertical component of velocity.

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Answer:

1. A series circuit consisting of:

12 V electrical source

open switch

two light bulbs

10 Ω resistor

2. A parallel circuit consisting of:

9.0 V electrical source

open switch

three 5.0 Ω resistor

3. A circuit consisting of:

three 1.5 V cells connected in parallel

open switch

two light bulbs connected in series

two 15 Ω resistor connected in parallel

4. Draw a circuit diagram consisting of a

9.0 V battery, an ammeter, and a 25 Ω

resistor in series. Include a voltmeter

that is measuring the potential difference

across the resistor.

5. Draw a circuit diagram consisting of a

battery made up of two 1.5 V cells, one

closed switch, two lamps, and an

ammeter in series. Show the direction in

which the current flows.

6. Draw a circuit diagram consisting

of a battery made up of four 1.5 V

cells, one closed switch, one lamp, two

0.50 Ω resistors in series, and a

voltmeter.

Show the direction in which

the current flows.

Answer:

A.

Explanation:

Never swim alone just in case something happens

Answer:

the answer is partner

Explanation:

this is common sense. if you are drowning or need help your partner will either be able to help you, or get help this is why u should NEVER swim alone no matter where or who you are. May i be marked brainliest?

Answer:

Explanation:

Acceleration is the time rate of change, or the rate, of the velocity. Therefore, the slope y/x of a speed vs time graph would give the acceleration. If the acceleration is said to be positive, the graph would be a straight line that is at a constant increase over time.

The equivalent resistance of this circuit is 4.62 Ω.

What is resistors?

A resistor is an electronic component that is used to resist or limit the flow of electric current through a circuit. It is a passive component, which means it does not require any external power source to function.

Resistors are typically made of materials that have a high resistance to the flow of electric current, such as carbon, metal, or metal oxide

When resistors are connected in parallel, the total resistance can be calculated using the following formula:

1/Req = 1/R1 + 1/R2 + 1/R3 + ...

where Req is the equivalent resistance and R1, R2, R3, etc. are the individual resistances.

Applying this formula to the given circuit, we get:

1/Req = 1/10 + 1/15 + 1/20

1/Req = 0.1 + 0.0667 + 0.05

1/Req = 0.2167

Taking the reciprocal of both sides gives:

Req = 1/0.2167

Req = 4.62 Ω

Therefore, the equivalent resistance of this circuit is 4.62 Ω.

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Answer:

true ............................................

During the summer season, the jet stream winds tend to move more slowly as the temperature is higher. So the given statement about jet stream winds is true.

Jet streams can be described as fast-flowing, narrow, meandering air currents in the atmospheres of some planets, including Earth. On Earth, the jet streams are found near the altitude of the tropopause and are westerly winds.

Jet streams may start,  split into two or more parts, combine into one stream, stop or flow in different directions including opposite to the direction of the jet.

The strongest jet streams are the polar ones, at 9–12 km above sea level, and the weaker subtropical jets at 10–16 km. The Southern Hemisphere and the Northern Hemisphere each have a polar jet and a subtropical jet.  Jet streams are formed due to large temperature differences exist in the atmosphere.

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Endemism refers to the occurrence of a species in a particular geographic area and nowhere else. The distribution of the continents plays a crucial role in determining the endemism of a species.

For instance, if a species evolved in a particular continent and that continent was isolated from other land masses, the species would have limited opportunities to disperse to other regions. As a result, the species would become endemic to that continent. Conversely, if the continent was connected to other land masses, the species would have more opportunities to disperse and establish populations in other areas, reducing its endemism. Therefore, the distribution of continents and their historical movements have shaped the evolution and distribution of species, ultimately determining their endemism.
The relationship between endemism and the distribution of the continents involves the unique species found in specific geographic regions. Endemism refers to the occurrence of certain species exclusively in a particular area, typically due to isolation and unique environmental conditions. The distribution of continents, which involves the arrangement of landmasses on Earth, plays a key role in creating such isolated environments. As continents shift and separate, species become geographically isolated, leading to the development of endemic species specific to those regions.

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Note: Your question inputs seem a little odd. But, I am assuming that you really mean '10km in 5 ms'.

Answer:

The Average speed = 15000 / 0.005 = 3000000 m/s

Explanation:

Average speed = Total Distance / Total time

Given

Thus,  

Average speed = Total Distance / Total time

Average speed = 15000 / 0.005 = 3000000 m/s

There are many forces that influence waves; they are classified as either generating or restoring forces. The generating forces are:

What are the forces that cause waves to form?

Wind is the most frequent cause of waves. The friction between the wind and the surface of the water produces wind-driven waves.

Note that a wave crest is produces when wind often disturbs the water's surface in an ocean or lake. The movement of the water, gravitational pull, and wind all contribute to the formation of waves.

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When the balloon hits the ground, the rubber envelope stretches, storing elastic potential energy; this elastic potential energy is transfigured to the gravitational potential. It is a correct answer.

What is potential energy?

Stored energy that depends upon the relative stand of different parts of a system is called potential energy. A spring has more potential energy when it is stretched.

What is gravitational potential?

A position is equal to the work per unit mass that would be needed to move an item to that position from a fixed reference position is called gravitational potential.

When the balloon hits the ground, the rubber envelope stretches, storing elastic potential energy; this elastic potential energy is transfigured to the gravitational potential. It is a correct answer.

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The question is not complete. The complete question is :

During a certain period of time, the angular position of a rotating object is given by \($\theta =2t^2 +10t+5$\), where θ is in radians and t is in seconds.  Determine the angular position, angular speed, and angular acceleration of the door (a) at t = 0.00 seconds, (b) at t = 3.00 seconds.

Solution :

Given :

Displacement or angular position of the object, \($\theta =2t^2 +10t+5$\)

∴ Angular speed is   \($\omega = \frac{d \theta}{dt}$\)

                                 ω = 10 + 4t

And angular acceleration is \($\alpha = \frac{d \omega}{dt}$\)

                                              α = 4

a). At time, t = 0.00 seconds :

   Angular displacement is \($\theta =2t^2 +10t+5$\)

                                            \($\theta =2(0)^2 +10(0)+5$\)

                                               = 5 rad

  Angular speed is  ω = 10 + 4t

                                 ω = 10 + 4(0)

                                     = 10 rad/s

Angular acceleration is α = 4 \($rad/s^2$\)

b). At time, t = 3.00 seconds :

   Angular displacement is \($\theta =2t^2 +10t+5$\)

                                            \($\theta =2(3)^2 +10(3)+5$\)

                                               = 53 rad

  Angular speed is  ω = 10 + 4t

                                 ω = 10 + 4(3)

                                     = 22 rad/s

Angular acceleration is α = 4 \($rad/s^2$\)

The net force acting on the charge Q is in the direction D. The net force is the sum of forces from the two point charges Q+ each.

According to Coulomb's law of force, the electrostatic force between two charges separated by a distance of r is given as follows:

Fq =  k q1 q2 /r²

where, k is a constant.

As per this equation, the electrostatic force between two charges will increase as the magnitude of charge increases and the force decreases as the distance between them increases.

Here, the forces acting on the point charge Q- are the forces from the two Q+ charges. They are of different distances from the charges.  The force in the direction E will be greater here. The net force on -Q is acting in the direction D.

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"According to the Hubble classification scheme, an sc galaxy has a small central bulge and loosely wound spiral arms." Correct option is D.

Galaxies were first categorised by Edwin Hubble into four categories: spirals, barred spirals, ellipticals, and irregulars. He further distinguished between spiral and barred spiral galaxies based on the size of the central bulge and the structure of the arms.

In the vast expanse of the cosmos, a galaxy is a collection of stars, interstellar gases, dust, and rock.

These galaxies were categorised by Hubble as SB galaxies with subclasses a, b, and c. They resemble spirals in general. In barred spirals, the spiral arms don't truly start there, but they do seem to.

A type Sa galaxy (Spiral a) features tightly wound arms and a noticeable bulge. The spiral c galaxy of type Sc features a tiny bulge and pronounced arms.

Sc spirals, in comparison, have a gas and dust content of 15%, which indicates that a sizable amount of the galaxy's mass is devoted to star formation. Because of this, Sc galaxies are characterised by tiny bulges and loosely wrapped arms that are frequently resolved into star clusters and HII areas. Best choice is D.

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Answer:

Explanation:

The rate of breathing is affected by the environment's pressure and temperature. The pressure and temperature are lower at greater altitudes. As a result, the man's lungs will have to work harder to breath the same volume of air. We may use the following calculation to compute the new rate of breathing:

(Pressure1 x Temperature1) x Rate of breathing1 = (Pressure2 x Temperature2) x Rate of breathing1

Where Pressure1, Temperature1, and Rate of breathing1 are the pressure, temperature, and rate of breathing at sea level (760mm Hg, 18 degrees Degrees c, and 16 breaths per minute), and Pressure2, Temperature2 are the pressure and temperature at the mountain top (760mm Hg, 18 degrees Celsius, and 16 breaths per minute) (240mm Hg, 5 degrees C)

Plugging in the values, we get:

Rate of breathing = (760 x 18) / (240 x 5) x 16

Rate of breathing = 4 x 16

Rate of breathing = 64 breaths per minute

So the man's rate of breathing at the mountain top would be 64 breaths per minute. This means that his lungs would have to work 4 times harder to inhale the same mass of air as at sea level due to the lower pressure and temperature at the mountain top.

Given information: The average method reports the following unit data for the forming department. Units completed in the forming department are transferred to the painting department. Production cost information for the forming department follows.

Direct materials:
Units completed during the period = 45,000 units
Ending work in process inventory = 5,000 units
Direct materials cost = $202,500

Conversion costs:
Units completed during the period = 45,000 units
Ending work in process inventory = 5,000 units
Conversion cost = $189,000

a. Calculation of equivalent units of production for both direct materials and conversion for the forming department:
Equivalent units of production = Units completed during the period + (Ending work in process inventory * Degree of completion)
Direct materials:
Equivalent units of production = 45,000 + (5,000 * 50%) = 47,500 units

Conversion costs:
Equivalent units of production = 45,000 + (5,000 * 60%) = 48,000 units

b. Calculation of the cost per equivalent unit of production for both direct materials and conversion for the forming department:
Cost per equivalent unit of production = Total cost for the period / Equivalent units of production

Direct materials:
Cost per equivalent unit of production = $202,500 / 47,500 units = $4.26 per unit

Conversion costs:
Cost per equivalent unit of production = $189,000 / 48,000 units = $3.94 per unit

c. Calculation of the cost assigned to the forming department's output using the weighted average method:
Total cost = Cost of units transferred out + Cost of ending work in process inventory
Cost of units transferred out = Number of units transferred out * Cost per equivalent unit of production
Cost of ending work in process inventory = Number of units in ending work in process inventory * Cost per equivalent unit of production

Direct materials:
Cost of units transferred out = 40,000 * $4.26 per unit = $170,400
Cost of ending work in process inventory = 5,000 * $4.26 per unit = $21,300
Total cost = $170,400 + $21,300 = $191,700

Conversion costs:
Cost of units transferred out = 40,000 * $3.94 per unit = $157,600
Cost of ending work in process inventory = 5,000 * $3.94 per unit = $19,700
Total cost = $157,600 + $19,700 = $177,300

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Answer:

The magnetic effect of electric current is known as electromagnetic effect. :)

Explanation:

the magnetic effect which is connected with electricity is called magnetic effect of current.

Answer:

This occurs because Earth's axis tilts the Southern Hemisphere toward the Sun, reducing the effects of day and night from Earth's rotation.

Earth's axis tilts the Southern Hemisphere toward the Sun, reducing the effects of day and night from Earth's rotation. The correct option is C.

Due to the tilt of the Earth's axis, the South Pole occasionally receives nonstop sunlight and 24-hour days. The tilt of the Earth's axis is a function of how the planet orbits the sun. Due to this tilt, the Earth's surface receives varied amounts of sunlight throughout the year.

The South Pole has 24 hours of uninterrupted sunlight when the Southern Hemisphere is angled toward the Sun, as it is at the summer solstice. This is because the axial tilt causes the Sun to always be above the horizon in that area.

Therefore, The correct option is C.

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Answer:

0 N

Explanation:

suppose, you push a box with 5 N, and another person pushes the box on the opposite side of the box with 5 N, the net force (resultant ) is 0 N, the box will not move if it wasn't moving

hope this helps

48 m/s in terms of km/h is 720.8 km/h. In terms of m/min is 2880 m/min, in terms of km/s is 0.048 km/s and in terms of km/min is 2.88 km/min.

To solve this question, we need to understand some terms. The unit of velocity is measured in m/s. It can be expressed in different units of velocity.

1 km (kilometer) = 1000 meter

1 h (hour) = 3600 seconds

1 minutes = 60 seconds

To convert m/s into km/h,

48 m/s * 3600/1000 =  172.8 km/h

To convert m/s into m/min,

48 m/s * 60 = 2880 m/min

To convert m/s into km/s,

48 m/s ÷ 1000 = 0.048 km/s

To convert m/s into km/minutes,

48 m/s * 60 / 1000 = 2.88 km/min

Therefore, the 48 m/s expressed is 172.8 km/h, 2880 m/min, 0.048 km/s and 2.88 km/min.

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48 m/s is equivalent to  172.8 km/h, 2880 m/min, 0.048 km/s, and 2.88 km/minute.

To express 48 m/s in different units of velocity:

km/h (kilometers per hour):

To convert m/s to km/h, we can use the conversion factor of 3.6 since 1 m/s is equal to 3.6 km/h.

48 m/s * (3.6 km/h / 1 m/s) = 172.8 km/h

Therefore, 48 m/s is equivalent to 172.8 km/h.

m/min (meters per minute):

To convert m/s to m/min, we can use the conversion factor of 60 since there are 60 seconds in a minute.

48 m/s * (60 m/min / 1 s) = 2880 m/min

Therefore, 48 m/s is equivalent to 2880 m/min.

km/s (kilometers per second):

Since 1 kilometer is equal to 1000 meters, to convert m/s to km/s, we divide the value by 1000.

48 m/s / 1000 = 0.048 km/s

Therefore, 48 m/s is equivalent to 0.048 km/s.

km/minute (kilometers per minute):

To convert m/s to km/minute, we first need to convert m/s to km/s (as calculated in the previous step) and then multiply by 60 to convert seconds to minutes.

0.048 km/s * 60 = 2.88 km/minute

So, 48 m/s is equivalent to 2.88 km/minute.

Hence, 48 m/s is equivalent to approximately 172.8 km/h, 2880 m/min, 0.048 km/s, and 2.88 km/minute.

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Answer:

Aeroplane

Explanation:

they have tail surfaces to stabilize the wings

The Kuiper belt is best described as a region of the solar system just beyond the orbit of Neptune that contains many icy comets.

The Kuiper belt was named after the Dutch astronomer, Gerald Kuiper. It is a large circular disk made up of frozen or icy objects that lie just beyond the orbit of Neptune, at about 30 astronomical units (1 astronomical unit or AU = the distance between the earth and the sun) from the sun. It should not be confused with the asteroid belt, which is a smaller disk (about 20 times smaller) consisting of small bodies, composed primarily of rock and metal. Dwarf planets such as Pluto, Orcus and Makemake can be found in the Kuiper belt.

Since the Kuiper belt is so far away from the sun, the average temperature around the kuiper belt is about 50K. Therefore, substances that would have been in liquid and gaseous form closer to the sun like water, methane and ammonia would remain in solid form or ice in the Kuiper belt. That is why the Kuiper belt contains more icy objects when compared to the asteroid belt.

Due to its close proximity with Neptune's orbit, the objects in the Kuiper belt are affected by Neptune's gravitational pull. As a result, Kuiper belt objects are not going in all directions, but rather, they travel in the same direction around the sun.

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