if the speed of a wave doubles as it passes from shallow water into deeper water, its wavelength will be

Answer:

2.05pm.

Explanation:

In the picture.

Answer:

38 is a good girl and a great place to work for u and I miss you y and I miss you much love your love and love to

Answer:

a. there is a pH gradient that parallels the electric field gradient.

Explanation:

Gel electrophoresis is a technique used to separate DNA fragments according to their size. DNA samples are loaded in the wells and then electric current is applied to pull the DNA fragments out from the gel. Isoelectric gel electrophoresis is a process in which negatively charged DNA fragments are separated from the gel.

With more than six million books in its collection and 19 million people living in the Greater Los Angeles Area, the system serves the biggest population of any public library system in the country.

The structure has eight stores with a total area of 538,000 square feet, approximately 89 miles of shelves, and more than 1,400 seats. There are 255 public computers with free access scattered around the building and the Computer Center. Wi-fi enables access to the internet as well.

The largest and most varied population in the country is served by the Los Angeles Public Library. There are four million people living within the library's huge 468 square mile service area, who speak more than 220 different languages.

Residents of 49 of the 88 incorporated cities in Los Angeles County, California, are served by LA County Library, one of the country's biggest public library systems.

To learn more about 'los angeles' refer to

https://brainly.com/question/25305703

#SPJ4

These grasshopper-related insects generate massive swarms that travel across areas. Since the Pharaohs ruled ancient Egypt, plagues of locusts have destroyed societies and continue to cause devastation now.

Invertebrates (animals without a backbone) have a hard exterior covering called an exoskeleton. The head, thorax, and abdomen make up an insect's three-part body. The majority of mature insects also have wings, and they all have six legs. Insects come in more than a million different varieties.

Ants are the most common bug in the world, which should not be surprising. There are around 10,000 species of these colonial hymenopterans, with an estimated population size of 10–100 trillion individuals worldwide.

To know more about Insect visit:

https://brainly.com/question/28174759

#SPJ4

In order to keep the temperature in the kitchen constant, 196 W of electric power must be supplied to the heating element, which is treated as a flat slab with an area of 1.40 m2.

Given to us,

Area of the flat slab, A = 1.40 m²,

The thickness of the fiberglass, d = 4 cm = 0.04 m,

Inside surface of the fiberglass \(T_{h}\),  = 175°C = 175°C + 273.15 = 448.15 K,

Outside surface of the fiberglass\(T_{i}\),  = 35°C = 35°C + 273.15 = 308.15 K,

Thermal conductivity of fiberglass, K = 0.040 W/(mK),

a.)

Conduction is the process by which heat energy is been transferred due to the collisions between atoms and molecules in solids. The heat transfer in conduction is written as,

Q/t = KA(\(T_{h}\) - \(T_{i}\))/ d

Q/t  = 0.040 × 1.40(448 .15 - 308 .15)/0.04

Q/t = 196 W

Therefore, the heat current through the insulation, treating it as a flat slab with an area of 1.40 m² is 196 W.

b.)

As the electric-power input to the heating element required to maintain the temperature in the kitchen is 196 W, because as the fiberglass is constantly losing heat, therefore to maintain the temperature we need to continuously provide that amount of heat to the kitchen for which the same amount of work will be required.

Thus, the electric-power input to the heating element required to maintain the temperature in the kitchen is 196 W.

Hence, the heat current through the insulation, treating it as a flat slab with an area of 1.40 m² is 196 W and the electric power input to the heating element required to maintain the temperature in the kitchen is also 196 W.

The  complete question is : An electric kitchen range has a total wall area of 1.40 m2 and is insulated with a layer of fiberglass 4.0 cm thick. The inside surface of the fiberglass has a temperature of 175 ∘C and its outside surface is at 35 ∘C. The fiberglass has a thermal conductivity of 0.040 W/(m⋅K).What is the heat current through the insulation, assuming it may be treated as a flat slab with an area of 1.40 m2?What electric-power input to the heating element is required to maintain this temperature?

To learn more about heat current refer to :

https://brainly.com/question/28566557

#SPJ4

Answer:

Psychiatrists are medical doctors, psychologists are not. Psychiatrists prescribe medication, psychologists can't. Psychiatrists diagnose illness, manage treatment and provide a range of therapies for complex and serious mental illness. Psychologists focus on providing psychotherapy (talk therapy) to help patients.

Explanation:

Answer:

Psychiatrists are medical doctors, psychologists are not. Psychiatrists prescribe medication, psychologists can't. Psychiatrists diagnose illness, manage treatment and provide a range of therapies for complex and serious mental illness. Psychologists focus on providing psychotherapy (talk therapy) to help patients.

Explanation:

Here's the fact that you need to know:

"The AREA under a speed/time graph is the distance traveled during the time covered by the graph."

Now ... What's the area of that nice trapezoid on the graph ?

Hint: Area of a trapezoid is

(1/2) • (height) • (base-1 + base-2)

Answer:

0,146 L

Explanation:

Según la ley de Charles; el volumen de una determinada masa de gas es directamente proporcional a su temperatura a presión constante.

A partir de los datos proporcionados;

V1 = 0,2 L

T1 = 100 ° C + 273 = 373 K

V2 =

T2 = 0 ° C + 273 = 273 K

V1 / T1 = V2 / T2

V1T2 = V2T1

V2 = V1T2 / T1

V2 = 0,2 × 273/373

V2 = 0,146 L

Based on the given information, the most appropriate classification for the state of the volcano would be "Active-Dormant."

The volcano's history of generating multiple lava flows over the past 10,000 years indicates that it has been active in the relatively recent past. The presence of lava flows that have spread over large areas suggests ongoing volcanic activity, although not necessarily in the immediate present.

Additionally, the mention of very little tephra (volcanic ash and fragments) indicates that the volcano is not currently experiencing explosive eruptions. Instead, it has been primarily characterized by effusive eruptions that produce lava flows.

The fact that people in the nearby town remember the last eruption, which caused some forest fires, further supports the classification of the volcano as active-dormant. While the volcano may not be actively erupting at the moment, the memory of the recent eruption and the potential for future volcanic activity suggests that it is still in a state of activity, albeit in a relatively dormant phase.

To know more about tephra, visit:
https://brainly.com/question/12549531

#SPJ11

The water jet velocity in scenario b is 34.7 ft/s. Let's assume that the water jet has a diameter of 3 inches and a density of 62.4 lb/ft^3 (which is the density of water at room temperature)

To determine the water jet velocity in scenario a, we can use the equation of momentum conservation which states that the momentum before impact is equal to the momentum after impact.

The area of the water jet is:

A = πd^2/4 = π(0.25 ft)^2 = 0.196 ft^2

The mass of water per second is:

m = ρAV = 62.4 lb/ft^3 × 0.196 ft^2 × V = 12.2V lb/s

where V is the velocity of the water jet in ft/s. The momentum before impact is:

p1 = mv = 12.2V lb/s × V = 12.2V^2 lb/s

After impact, the momentum is transferred to the plate which has a mass of 10 lb and moves with zero velocity. Therefore, the momentum after impact is:

p2 = mv' = 10 lb × 0 ft/s = 0 lb/s

Equating these two momenta, we get:

12.2V^2 = 0

which means that V = 0 ft/s. Therefore, the water jet is not moving in scenario a.

In scenario b, the plate moves to the right with a constant velocity of 10 ft/s. This means that the momentum after impact is not zero but is transferred to the plate and the plate moves with a certain velocity. Using the same equation of momentum conservation, we get:

12.2V^2 = (10 lb + m) × 10 ft/s

where m is the mass of water per second as before. Solving for V, we get:

V = sqrt[(10 lb + m) × 10 ft/s / 12.2] = sqrt[(10 lb + 12.2V lb/s) × 10 ft/s / 12.2]

Squaring both sides and solving for V, we get:

V = 34.7 ft/s

Therefore, the water jet velocity in scenario b is 34.7 ft/s.

Learn more about velocity here:

https://brainly.com/question/17127206

#SPJ11

The force required to move the 90 Kg object at a constant speed of 8.10 m/s is 138.94 N

The force required to keep an object moving in a circle is called Centripetal force. This is defined according to the following equation:

F = mv²/r

With the above formula, we can obtain the force required to move the 90 Kg object. Details below:

F = mv²/r

F = (90 × 8.10²) / 42.5

F = (90 × 65.1) / 42.5

F = 5904.9 / 42.5

F = 138.94 N

Thus, the force required is 138.94 N

Learn more about centripetal force:

https://brainly.com/question/14021112

#SPJ1

The first statement is true; if dim V = p and if S is a linearly dependent subset of V, then S contains more than p vectors.

The second statement is false; if S spans V and if T is a subset of V that contains more vectors than S, then T is linearlyly dependent.

Explanation:

If S is linearly dependent, then there is at least one vector in S that can be written as a linear combination of the remaining vectors. If this is the case, then this vector is redundant, and it can be removed from S. This means that we can repeat the process until we have removed all the redundant vectors from S.So, let us assume that S is a linearly dependent subset of V such that dim V = p, then we have the following:dim (span S) < dim Vp. So S contains more than p vectors.

The  second statement is false; if S spans V and if T is a subset of V that contains more vectors than S, then T is linearly dependent.

Explanation:Let us assume that S spans V and if T is a subset of V that contains more vectors than S, then T must have a vector not in S. We can add this vector to S to get a set that contains all the vectors in T. The resulting set is linearly dependent because it contains more vectors than S, which is known to span V.

Learn more about vector space at https://brainly.com/question/30531953

#SPJ11

Agatha requires (c) 10 hours of sleep each night.

Children in middle school ideally require average 9-12 hours of sleep each night. If the number of hours of sleep each night is compromised, it will show effect on the concentration and health of the child.

Because sleep is crucial to your physical health, it is crucial that you receive enough of it every night. For instance, your heart and blood arteries are able to recover and repair themselves as you sleep. An increased risk of heart disease, renal disease, high blood pressure, diabetes, and stroke has been related to chronic sleep deprivation. For the brain and body to operate properly the following day, doctors and specialists advise children to receive at least 9 to 12 hours of sleep each night.

Learn more about sleep each night here:

https://brainly.com/question/16351821

#SPJ9

Answer:

vb = 22.13 m/s

So, the only thing that was measured here was the height of point A relative to point B. And the Law of Conservation of Energy was used.

Explanation:

In order to find the speed of roller coaster at Point B, we will use the law of conservation of Energy. In this situation, the law of conservation of energy states that:

K.E at A + P.E at A = K.E at B + P.E at B

(1/2)mvₐ² + mghₐ = (1/2)m(vb)² + mg(hb)

(1/2)vₙ² + ghₐ = (1/2)(vb)² + g(hb)

where,

vₙ = velocity of roller coaster at point a = 0 m/s

hₙ = height of roller coaster at point a = 25 m

g = 9.8 m/s²

vb = velocity of roller coaster at point B = ?

hb = Height of Point B = 0 m (since, point is the reference point)

Therefore,

(1/2)(0 m/s)² + (9.8 m/s²)(25 m) = (1/2)(vb)² + (9.8 m/s²)(0 m)

245 m²/s² * 2 = vb²

vb = √(490 m²/s²)

vb = 22.13 m/s

So, the only thing that was measured here was the height of point A relative to point B. And the Law of Conservation of Energy was used.

Answer:

The acceleration is 5km/h

Explanation:

Given

Initial Velocity (u) = 30km/h

Final Velocity (v) = 50km/h

Time (t) = 4h

Required

Determine the acceleration

This question will be answered using the first equation of motion;

\(v = u + at\)

Substitute values for u, v and t

\(50 = 30 + a * 4\)

\(50 = 30 + 4a\)

Subtract 30 from both sides

\(50 - 30 = 30 - 30+ 4a\)

\(20 = 4a\)

Divide both sides by 4

\(\frac{20}{4} = \frac{4a}{4}\)

\(5 = a\)

\(a = 5\)

Hence;

The acceleration is 5km/h

The distance that your vehicle travels between the time that you notice a hazard and the time that you start to brake is known as the perception distance.

Perception distance is the distance between when you first notice a hazard and when you decide to apply the brakes, and it is one of three factors that determine stopping distance, along with reaction distance and braking distance.

Perception distance is defined as the distance your car travels from the moment you see a problem to the moment you realize you need to react to the problem. This distance can be significantly increased if you are inattentive or distracted while driving, as your brain takes longer to process the potential hazard.

Know more about perception distance:

https://brainly.com/question/30227028

#SPJ4

The distance a vehicle travels from the moment a hazard is noticed to the time when brakes are applied is referred to as the reaction distance. This combined with the braking distance gives the total stopping distance.

The distance that your vehicle travels between the time that you notice a hazard and the time that you start to brake is known as the reaction distance. This concept is critical in topics such as motion and braking analysis. For example, when you're driving the car at exactly 50 mph and then apply the brakes until it stops, the distance it takes to completely halt the vehicle includes the reaction distance. The final stopping distance is the sum of the distance covered during the reaction time (when velocity constant) and the distance the car travels while braking. The faster the car goes, the greater the reaction distance would be. It's also worth noting that wet road conditions can extend the reaction distance due to increased friction and slower braking response.

https://brainly.com/question/32305208

#SPJ11

Answer:

hi

Explanation:

could you please upload ur image

The speed of the wave pulse increases as it travels up the heavy rope.

density, the mass of a unit quantity of a fabric substance. The method for density is d = M/V, wherein d is density, M is mass, and V is volume. Density is usually expressed in gadgets of grams per cubic centimeter. Density (volumetric mass density or particular mass) is the substance's mass consistent with the unit of quantity. The image most customarily used for density is ρ (the decreased case Greek letter rho), despite the fact that the Latin letter D can also be used.

The density of cloth varies with temperature and pressure. this transformation is typically small for solids and liquids but lots more for gases. increasing the stress on an item decreases the volume of the item and accordingly increases its density. increasing the temperature of a substance (with some exceptions) decreases its density by way of increasing its volume. The reciprocal of the density of a substance is once in a while known as its precise extent, a term occasionally utilized in thermodynamics. Density is an extensive property in that increasing the quantity of a substance does now not grow its density; instead, it increases its mass.

To learn more about density visit here:

brainly.com/question/15164682

#SPJ4

The lunar phases are caused by the relative positions of the Earth, Moon, and Sun. The Moon orbits the Earth once every 29.5 days, and as it does so, we see different portions of the illuminated side of the Moon. These different portions of the Moon are called phases. There are eight primary phases of the Moon: New Moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Third Quarter, and Waning Crescent.

An eclipse occurs when one celestial object moves into the shadow of another. There are two types of eclipses: solar and lunar. A solar eclipse occurs when the Moon passes between the Earth and the Sun, blocking the Sun's light and casting a shadow on the Earth. A lunar eclipse occurs when the Earth passes between the Sun and the Moon, casting a shadow on the Moon.

To explain these phenomena, teachers can use different methods such as diagrams, animations or models. For example, teachers can use a lamp to represent the Sun, a small ball to represent the Moon and a larger ball to represent the Earth. By moving the Moon around the Earth, the phases of the Moon can be demonstrated. To show eclipses, the Moon can be moved between the Earth and the Sun, or the Earth can be moved between the Sun and the Moon.

Using these methods can be an effective way of demonstrating the phases and eclipses to students. Teachers can also use animations and videos to help students visualize these events. It is important to note that these models and demonstrations are not perfect representations of the actual events, as they simplify the complex motions and distances involved in the interactions between celestial bodies.

Name of person taught: John

John said: "I learned a lot from the model that my teacher showed me. It was very helpful to see how the phases of the Moon and eclipses occur. The demonstration with the lamp and the balls really helped me understand the concepts. I also appreciated the videos that my teacher showed me, as they helped me see the events from different perspectives."

To know more about Moon and eclipses, visit:

https://brainly.com/question/9180257

#SPJ1

Answer:FASTEST AND BEST ANSWER GETS BRAINLIEST AND THANKS!

Include a picture, video, or diagram of your model of lunar phases or eclipses.

Provide a description of how you made your model and how it demonstrates eclipses or lunar phases.

Include a one-paragraph reflection on the success of your model in explaining your event.

Include the name of the person you taught about your event and that person's description of what they learned from your model.

Explanation:

wawa wawa

Answer:

25 degrees

Explanation:

The angle of incidence equals the angle of reflection

work= total useful energy÷total energy output

50 joules

The velocity of the load right after the brake of the lorry is suddenly applied at t = 6 s, is 16.9 m/s.

The velocity of the load is determined from the ratio of the load displacement and time taken.

Mathematically, the formula for displacement is given as;

Displacement = change in displacement / change in time

The displacement of the load at 6 seconds is calculated as;

D = area under the curve

D = (15 s - 6 s ) x (20 m/s - 0 m/s)  +  ¹/₂ (19 s - 15 s ) x (20 m/s - 0 m/s)

D = 180 m  + 40 m

D = 220 m

The velocity of the load;

v = ( 220 m ) / (19 s - 6 s )

v = 16.9 m/s

Learn more about velocity here: https://brainly.com/question/25905661

#SPJ1

The direction of the current in the current-carrying wire that produces the field indicated in the figure is given below.

Conventionally, a positive charge would go in the same direction as an electric current. As a result, the battery's positive terminal receives less current in the external circuit than its negative counterpart. Indeed, electrons would go in the reverse direction across the cables.

According to Fleming's right-hand rule gives which direction the current flows. The right hand is held with thumb, index finger & middle finger mutually perpendicular to each other. The thumb is pointed in direction of motion to magnetic field of conductor relative to magnetic field.

(A) from right hand rule direction of current is towards left.

(B) Out of the Screen.

(C) Lower left to upper right.

According to Fleming's Right Hand Rule, if the thumb, forefinger, and middle finger are arranged in a straight line on the right hand, the thumb will point in the direction of the conductor's motion in relation to the magnetic field, the forefinger will point in the direction of the magnetic field, and the middle finger will point in the direction of the induced current.

Learn more about direction of the current :

brainly.com/question/15912115

#SPJ4

Full Question ;

Consider the following figures. Determine the direction of the current in the current-carrying wire that produces the field indicated in the figure. (a) * * * * * * * * * * * Bin * O out of the screen O into the screen O toward the left toward the right toward the top of the screen toward the bottom of the screen (b) O out of the screen O into the screen O toward the left toward the right O toward the top of the screen toward the bottom of the screen (C) * * * * O out of the screen into the screen lower right to upper left lower left to upper right upper right to lower left upper left to lower right

The most valuable and rarest diamonds in the world are red ones.They are also referred to as Fancy Reds and come in a range of hues from orange-red through brownish red.

The most valuable diamond in the entire world is the Kohinoor.The main diamond for the British Crown is an oval stone 109 carats in weight that weighs 21.6 grams, according to reports.The diamond currently belongs to Queen Elizabeth II and may be traced back to India.The diamond is thought to be priceless due to its rarity.

Which Diamond Color Has The Highest Cost?Red diamonds represent the most valuable diamond color, despite the fact that white diamonds are more common.This is mainly because they are so uncommon.Red diamonds differ from those other colored diamonds in that they have a different source for their hue.

To know more about diamonds visit:

https://brainly.com/question/9286031

#SPJ1

The average acceleration for that time interval will be zero because the velocity is constant.

If an object's velocity changes, it is said to have been accelerated. An object's velocity can alter depending on whether it moves faster or slower or in a different direction. A falling apple, the moon orbiting the earth, and a car stopped at a stop sign are a few instances of acceleration. Through these illustrations, we can see that acceleration happens whenever a moving object changes its direction or speed, or both.

Velocity and speed describe how quickly or slowly an object is moving. We frequently encounter circumstances when we must determine which of two or more moving objects is going faster. If the two are travelling on the same route in the same direction, it is simple to determine which is quicker. It is challenging to identify who is moving the fastest when their motion is in the other direction. The concept of velocity is useful in these circumstances. Learn about the definition of velocity in this article as well as the distinction between speed and velocity.

the velocity is constant at -20 m/s. Hence the average acceleration for that time interval will be zero because the velocity is constant.

Learn more about acceleration here :

brainly.com/question/460763

#SPJ13

Answer:

0

Explanation:

i did it on khan academy

The question is asking whether it is possible to find a magnetic vector potential for a given uniform surface current flowing in the xy plane and generating a magnetic field for different regions of space.

To determine whether it is possible to find a magnetic vector potential for the given scenario, we need to consider the conditions that must be satisfied. In general, a magnetic vector potential A can be found if the magnetic field B satisfies the condition ∇ × A = B. This is known as the magnetic vector potential equation.

In the given situation, the magnetic field is different for the regions above and below the xy plane. For z > 0, the magnetic field is described as B = MoK -î, and for z < 0, it is described as B = -MoK -î. To find the magnetic vector potential, we need to determine if there exists a vector potential A that satisfies the equation ∇ × A = B in each region.

By calculating the curl of A, we can check if it matches the given magnetic field expressions. If the curl of A matches the magnetic field expressions for both regions, then it is possible to find a magnetic vector potential for the given scenario. However, if the curl of A does not match the magnetic field expressions, then it is not possible to find a magnetic vector potential that satisfies the conditions.

Learn more about surface Current:

https://brainly.com/question/7947534

#SPJ11

Answer:

19.89×10^-26Jm

Explanation:

The Energy of a photon is given as;

E = h×c/λ

Where h is Plank's constant.

c is speed of light

λ is the wavelength.

By multiplying both sides of the equation to λ

E × λ = h×c/λ × λ

E × λ = h×c

= 6.63×10^-34× 3×10^8

= 19.89×10^-26Jm