a) The speed of a motor supplied with a voltage input of 30V, assuming the system is without damping, can be expressed as: 30 = (0.02)+(0.06)w dt If the initial speed is zero and a step size of h = 0.

Answer: 20 m west

Explanation:

Answer:

its most definitely c. trust me

Explanation:

Answer:

59.8 m/s

Explanation:

vf = vo + at

   = 50 m/s + 9.81 m/s^2  (1 s) = 59.8 m/s

At one instant an object in free fall is moving downward at 50 m/s. one second later its speed would be 59.81 meters/second because under the free fall motion the only acting force is the gravitational force.

There are three equations of motion given by  Newton

The first equation is given as follows

v = u + at

the second equation is given as follows

S = ut + 1/2×a×t²

the third equation is given as follows

v² - u² = 2×a×s

As given in the problem at one instant an object in free fall is moving downward at 50 m/s and we have to find out the speed after 1 second,

By using the first equation of motion,

v = u + at

v = 50 + 9.81 ×1

v = 59.81 meters/second

Thus, the speed of the falling stone after one second would be 59.81 meters/second

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The statement "Vertical mixing takes place at the poles because there is little temperature difference between surface and deep waters" is false.

Vertical mixing is an oceanographic phenomenon that occurs where there is a difference in temperature, salinity, and density between the surface and deep layers of the ocean. The mixing helps in the transportation of nutrients from the deep layer to the surface layer and vice versa. Hence, Vertical mixing does not take place at the poles because there is little temperature difference between surface and deep waters.In general, vertical mixing is more vigorous in the equatorial region than in the polar region. This is because, in the equatorial region, there is a stronger temperature difference between surface and deep waters due to high solar radiation. As a result, the surface waters become warmer, less dense, and float over the denser deep waters. This leads to the creation of a thermocline, which prevents vertical mixing from occurring.On the other hand, in the polar region, there is little temperature difference between surface and deep waters. As a result, there is no thermocline, and the water column is relatively uniform in temperature and density. Therefore, vertical mixing is weak, and the nutrients in the deep water do not mix with the surface water.

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Answer:

Explanation:

If a ship sets out to sail to a point 154 km due north and an unexpected storm blows the ship to a point 72 km due east of its starting point, then the ships distance from the original destination can be gotten by finding the displacement of the ship and this can be gotten by using pythagoras theorem.

Let D be the unknown displacement

According to the theorem;

D² = 154² + 72²

D² = 23716 + 5184

D² = 28900

D = √28900

D = 170km

This means that the ship must now sail a distance of 170km for it to reach its original destination.

Answer:

which language is these

Explanation:

we only use english , Hindi ,tamil , bengali and Malayalam

please tell us that it is which language. From that we will slove this

Answer:

a = vf-vi / t

a = (54 km / h-36 km / h) / 2

a = 18/2

a = 9ms⁻²

The critical angle of the transparent material is 35.3 degrees.

The critical angle is the angle of incidence at which the angle of refraction is 90 degrees. In this case, the angle of refraction is 32 degrees. Therefore, the critical angle is calculated as follows:

sin(critical angle) = sin(90 degrees) / sin(angle of refraction)

sin(critical angle) = 1 / sin(32 degrees)

sin(critical angle) = 0.574

critical angle = arcsin(0.574)

critical angle = 35.3 degrees

Therefore, the critical angle of the transparent material is 35.3 degrees.

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Answer:

If the car comes to a sudden stop, your body tends to keep moving forward.

Explanation:

Answer:

We applicate formula:

I = V/R

Replacing acording data:

I = 12 V / 10 Ω

I = 1,2 A

Result:

The current is of 1,2 Amperes.

Answer:

1.2 amps

Explanation:

I = V/R

V = 12

R = 10

12/10 = 1.2 amperes (amps)

Answer:

Gases move from high-pressure areas to low-pressure areas. And the bigger the difference between the pressures, the faster the air will move from the high to the low pressure. That rush of air is the wind we experience.

Explanation:

When you push a pencil off your desk, the energy transformation that takes place is that potential energy transforms into kinetic energy.

The correct answer to the given question is option C.

Potential energy is the energy stored within an object because of its position or configuration.

In this scenario, the pencil has potential energy because of its elevated position on the desk. When the pencil is pushed off the desk, it begins to move, which means that it has kinetic energy. Kinetic energy is the energy of motion.

As the pencil falls off the desk, its potential energy is transformed into kinetic energy, which is the energy that results from its motion. The faster the pencil falls, the greater its kinetic energy will be because kinetic energy is directly proportional to the square of an object's velocity.

Therefore, when you push a pencil off your desk, the potential energy that it has because of its elevated position is transformed into kinetic energy as it falls towards the ground.

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Answer:

isobaric process

Explanation:

An isobaric process occurs at constant pressure. Since the pressure is constant, the force exerted is constant and the work done is given as PΔV.

Answer:

well for me I think it's

Explanation:

Charles law in gas laws

Option B: the action that generally increases the safety of a gravity dump is Installation of a remote dump valve.

In the context of industrial processes, a gravity dump refers to a method of emptying or draining a vessel or tank using gravity. Installing a remote dump valve allows for remote operation of the dumping process, which can enhance safety by providing better control and minimizing the need for direct personnel interaction with the dump site. Remote operation reduces the risk of exposure to hazardous materials or substances during the dumping process.

It's important to note that specific safety measures might vary depending on the nature of the material being dumped, the system design, and applicable regulations. Therefore, it's always recommended to refer to relevant guidelines, industry standards, and specific equipment instructions to ensure appropriate safety measures are implemented.

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The true statements are a) The power supply will only deliver up to 500 W of power and operate very efficiently and b) The 1000 W power supply will last longer than, for example, a 750 W power supply.

The power supply in a computer is designed to provide only the amount of power needed by the system, so in this case, it will deliver up to 500 W, even though its maximum capacity is 1000 W. This allows the power supply to operate efficiently without drawing excess power or creating an electrical hazard.

Additionally, a higher wattage power supply, like the 1000 W unit, will generally last longer because it is not being pushed to its maximum capacity, allowing for less wear and tear on the components. A power supply with a lower wattage, such as 750 W, may need to work harder to provide the necessary power, potentially reducing its lifespan.

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Answer:

Explained below.

Explanation:

Conductors can be defined as materials that permit electricity to flow through them easily.

Now, metals have a molecular structure that makes them good conductors because electrons in the atoms of these conductors tend to move freely from one atom to the other. So a majority of metals make good conductors because these metals tend to hold their electrons loosely. In short, it can help engineers make powerful batteries because then it means that they are capable of giving much more electrical energy since nowadays, advanced batteries make use of ion charges for the batteries.

A student ties a lead cube to an oval-shaped block to prevent it from floating and immerses it in water density as part of a study to identify the sort of wood it is composed of.

The term "density" (also known as "volumetric mass density" or "specific mass") refers to a substance's mass per unit of volume. Although the Latin letter D may also be used, the sign most frequently used for density is (the lower case Greek letter rho).

According to legend, Archimedes shouted "Eureka!" as he rushed through the Sicilian streets. ("I've discovered it!") He had figured out what density was. Everyone has spent a significant amount of time in water during their life. The second thing Archimedes noticed was that he felt lighter floating.

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Answer:Part A: 0.13 s (approx)Part B: 5.1 m (approx)

Given: The initial velocity, `u` of the ball = 26 m/sThe angle, `θ` between the ball's initial velocity and the horizontal

= 36°The horizontal distance from the wall, `x` = 3.8 m

The acceleration due to gravity, `g` = 9.8 m/s²

Part A: To find the time taken by the ball to reach the wall, we need to use the equation of motion which is given as:

x = ut cosθt = x / (u cosθ)

Substituting the given values, we get:

t = 3.8 / (26 × cos 36°)t

≈ 0.128 s

Therefore, the time taken by the ball to reach the wall is 0.13 s (approx)

Part B: To find the height of the ball when it hits the wall, we need to use the equation of motion which is given as:

y = ut sinθ - (1/2)gt²

We know that at the highest point of the projectile motion, the vertical velocity of the ball will be zero. Therefore, we can find the time of flight, `T` from the equation of motion:

y = ut sinθ - (1/2)gt²0

= usinθ - (1/2)gT²T

= (2usinθ) / g

Substituting the given values,

we get:

T = (2 × 26 × sin 36°) / 9.8T ≈ 2.2 s

Therefore, the total time taken by the ball to hit the wall is 2.2 s (approx)

Now, we can use the equation of motion to find the height of the ball when it hits the wall:

y = ut sinθ - (1/2)gt²y

= (26 sin 36°)(2.2) - (1/2)(9.8)(2.2)²y

≈ 5.1 m

Therefore, the height of the ball when it hits the wall is 5.1 m (approx)

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Given heat transfer coefficient as `h` = 122 W/m²K.We know the relation between heat transfer coefficient, length of the heat exchanger `L`.

cross-sectional area of the heat exchanger `A` and logarithmic mean temperature difference `ΔTlm` is given by;`Q = h × A × ΔTlm`Here, we are required to find the outlet mean temperature which can be obtained by applying the formula for the logarithmic mean temperature difference;`ΔTlm = (ΔT1 - ΔT2)/ln(ΔT1/ΔT2)`where `ΔT1` and `ΔT2` are the temperature differences at the hot and cold end of the heat exchanger respectively.

The formula can be rearranged to obtain `ΔT2`;`ΔT2 = ΔT1 - ΔTlm × ln(ΔT1/ΔT2)`As given in the problem, outlet temperature `T1` is not given, but we are given the heat transfer coefficient, so we cannot directly solve the problem using the above formulas without the temperatures. Therefore, the problem is not complete and doesn't have a Hence, the answer to this question is that it is incomplete and we can't determine the outlet mean temperature using the given information.

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when forces along the body are transmitted to an adjacent structure, usually the floor or a piece of equipment is called Closed Kinetic chain .

A closed kinetic chain exercise, according to Steindler, occurs when the distal section encounters "substantial" external resistance that prevents unrestricted movement. As a result, neither the proximal nor the distal portions can move in this system.

Unfortunately, Steindler did not provide a numerical value for the word "substantial" in his original definition, which causes misunderstanding and disagreement over what constitutes a true closed kinetic chain movement. Except during isometric exercises, where there is no movement, true closed kinetic chain movement patterns never happen in the extremities.

However, in clinical practise, "resistance is imposed through the distal portion of the extremity and remains fixed to the extremities" is the definition of a closed kinetic chain. The standing squat is the best illustration of this since the feet stay firmly planted and the surface encounters significant resistance from the athlete's bodyweight or additional weight.

Due to its built-in functional stimulation, closed kinetic chain exercises have been used more and more in rehabilitation programmes for more than 20 years.

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Answer:

A) the liquid particals move slower

Explanation:

vapor has a higher temp and have more energy than liquid so it's not c or d. and liquid has a lower boiling point than vapor

Answer:

300,000

Explanation:

its basicly adding 125+125+125+125+125+125+125+125+125 or125 x 9

About 41.25% of the initial kinetic energy of the ball was lost during the collision. Since the collision is elastic, the total mechanical energy (kinetic plus potential) of the ball-floor system is conserved.

When the rubber ball hits the floor, it undergoes an elastic collision with the floor, where some of the kinetic energy of the ball is lost due to various dissipative processes such as friction, sound, and deformation of the ball. However, since the collision is elastic, the total mechanical energy (kinetic plus potential) of the ball-floor system is conserved.

Let's denote the initial speed of the ball as v1 = 8.0 m/s and the rebound height as h = 0.25 m. We can use the conservation of mechanical energy to find the final speed of the ball, v2, just as it leaves the floor:

Initial kinetic energy of the ball = 1/2 mv1^2

Final potential energy of the ball at maximum height = mgh

Final kinetic energy of the ball just as it leaves the floor = 1/2 mv2^2

Since mechanical energy is conserved, we can write:

1/2 mv1^2 = mgh + 1/2 mv2^2

Simplifying, we get:

v2 = sqrt(v1^2 - 2gh)

Plugging in the values, we get:

v2 = sqrt((8.0 m/s)^2 - 2(9.81 m/s^2)(0.25 m))

v2 = 5.06 m/s

The change in kinetic energy of the ball during the collision is given by:

delta_K = 1/2 m v1^2 - 1/2 m v2^2

Substituting the values, we get:

delta_K = 1/2 (m) (8.0 m/s)^2 - 1/2 (m) (5.06 m/s)^2

delta_K = 0.5m(39.2 - 12.8)

delta_K = 13.2 m

Thus, the fraction of the initial kinetic energy lost during the collision is:

fraction lost = delta_K / (1/2 mv1^2)

Substituting the values, we get:

fraction lost = (13.2 J) / (1/2 m(8.0 m/s)^2)

fraction lost = 0.4125

Therefore, about 41.25% of the initial kinetic energy of the ball was lost during the collision.

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Answer:

C. The distance traveled by an object at a certain velocity.

Explanation:

YW!

Answer:

third option is the most accurate

Answer:

Solids have a definite shape and volume, its particles vibrate slowly.

Liquids have no definite shape, the particles move randomly around its container, and they have a fixed volume.

(a) Frequency of sound wave is inversely proportional to string length.

(b) Pitch of a sound depends on the frequency while loudness depends on the amplitude of sound.

The relationship between string length and frequency is given as;

λ = 2L

where;

v = fλ

f = v/λ

f = v/2L

Thus, frequency of sound wave is inversely proportional to string length.

The pitch of a sound depends on the frequency while loudness of a sound depends on the amplitude of sound waves.

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The value shown by the letter E is 24V.

Define resistance

A material's ability to obstruct the flow of electrical current is referred to as resistance. The capital letter R serves as a symbol for it. A conductor's ability to obstruct the flow of charges through it is referred to as resistance.

A closed loop is referred to as a circuit where electrons can move. The circuit receives power from an electricity source, like a battery. There won't be any electron movement until the circuit is finished, or until it has made a full circuit loop back to the electrical source.

V = IR

For circuit 5, V = E

I = 8A

R = 3

E = 8*3 = 24V

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Answer:

8

Explanation:

In order to help Scarlett retrieve her toy train from the lake, the wooden fishing rod can be modified or adapted by Attaching a magnet, Adding a hook or grappling device, and Using a net or scoop.

Attaching a magnet: Scarlett can attach a strong magnet to the end of the fishing rod. Since the train contains parts made of steel, the magnet will be attracted to the metallic components. By carefully maneuvering the magnet with the fishing rod, Scarlett can potentially attract and retrieve the train from the water.

Adding a hook or grappling device: Scarlett can affix a hook or grappling mechanism to the fishing rod. By casting the hook near the location where the train fell into the lake and skillfully maneuvering the rod, she can attempt to hook onto the train or one of its parts. With a successful hook, she can slowly reel in the train and bring it back to shore.

Using a net or scoop: If the toy train is floating on the surface of the lake or near the shallow edges, Scarlett can attach a net or scoop to the end of the fishing rod. By carefully positioning the net or scoop around the train, she can scoop it up and safely retrieve it without causing any damage.

It's important to note that the success of these modifications will depend on factors such as the depth of the lake, the accessibility of the train, and the size and weight of the fishing rod. Additionally, adult supervision or assistance may be necessary to ensure safety, especially if the lake is deep or poses any hazards.

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Answer:

The Kidneys

Explanation:

The Kidneys remove the toxic stuff that you dont need anymore. Therefore the kidneys rather than the everything else removes blood and toxic waste.

Answer:

They are theories which have a really dark twist or meaning behind the whole theory, some conspiracy theories can also lead to a cliffhanger.