Select the correct answer.
Which is a transverse wave that requires a medium to move?

A.
ocean wave
B.
sound wave
C.
light wave
D.
microwave

The magnetic field is also stronger inside the solenoid than outside of it, and is stronger near the ends of the solenoid than in the middle.

When a coil of wire is shaped into a solenoid and a current is passed through it, a magnetic field is generated. The resulting magnetic field inside the solenoid is uniform, which means that it has the same strength and direction at all points inside the solenoid. This is because the individual magnetic fields of each coil of wire in the solenoid add up to create a strong and consistent magnetic field. The magnetic field lines run parallel to the axis of the solenoid, which means that they point in the same direction as the current flowing through the coil.  This is because the magnetic field lines curve as they approach the ends of the solenoid, causing them to concentrate and become stronger.

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complete question:

A coil of wire is shaped into a solenoid and carries a current. The resulting magnetic field inside the solenoid __________.

A.  points perpendicular to the axis of the solenoid

B. is zero

C. is uniform

D.  is stronger near the ends

The net displacement can be calculated by summing the three vectors.

15m, \(135^{0}\) have x = -7.5m and y = 7.5m

35m, \(40^{0}\) NW have x = -26,8m and y = 22.5m

20m, \(15^{0}\) NE have x = 19.3m and y = 5.2m

The the net displacement is x = -15m and y = 35.2m or 38.26m, \(23.07^{0}\) NW

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An archeologist is exploring a cave; she follows a secret passage 15 m, 135°, then 35 m, 40° NW. Finally, 20 m, 15° NE. The net displacement -15m and y = 35.2m or 38.26m,  NW.

The net displacement can be calculated by summing the three vectors.

15m,  have x = -7.5m and y = 7.5m

35m,  NW have x = -26,8m and y = 22.5m

20m,  NE have x = 19.3m and y = 5.2m

The the net displacement is x = -15m and y = 35.2m or 38.26m,  NW

Displacement vectors have a length or magnitude equal to the shortest distance between a start point and an end point. Adding vectors to get a net displacement requires separating them by dimensions, and . And displacement vectors, like all vectors, have both a magnitude, or length, and a direction.

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A newton is defined as 1 kg⋅m/s2, which is the force which gives a mass of 1 kilogram an acceleration of 1 metre per second, per second.

Approximately 34,359,738,368 DNA molecules would be present in the reaction tube after 35 cycles of amplification.

In a PCR (Polymerase Chain Reaction) experiment, the DNA amplification process doubles the amount of DNA in each cycle. Starting with only one copy of double-stranded DNA, after 35 cycles of amplification, the number of DNA molecules present in the reaction tube can be calculated by multiplying the initial amount by two raised to the power of the number of cycles.

Mathematically, the calculation can be expressed as:

Number of DNA molecules = Initial amount × \( (2^{number of cycles})\)

For this scenario, starting with one copy of DNA, after 35 cycles, the calculation would be:

Number of DNA molecules =

\(1 × ({2}^{35} )\)

Therefore, calculating this, we find that after 35 cycles of amplification, there would be approximately 34,359,738,368 DNA molecules in the reaction tube.

It's important to note that this calculation assumes ideal conditions without any PCR inefficiencies or limitations.

In practice, there may be factors that affect the efficiency of the reaction, such as inhibitory substances or limitations of the PCR components, which could result in some variation from the theoretical calculation.

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element z are isotopes because number of netron are different and number of protons are same

Answer:

It is because gasses, liquids, and plasma are always changing shape they are named and classified as ‘fluid’.

In this collision, momentum is conserved as there is no external force acting on the system. We can use the conservation of momentum to find the final velocity of puck 2.

pinitial = m1v1 + m2v2

where m1 and m2 are the masses of puck 1 and puck 2 respectively, and v1 and v2 are their initial velocities. Since puck 2 is initially at rest, we have:

pinitial = m1×v1

Substituting the given values, we get:

pinitial = (0.35 kg)×(2.5 m/s) = 0.875 kg m/s

After the collision, puck 1 is deflected at an angle of 30 degrees with a speed of 1.7 m/s. We can use trigonometry to find the x and y components of its final velocity:

v1x = v1cos(30) = 1.7cos(30) = 1.47 m/s v1y = v1sin(30) = 1.7sin(30) = 0.85 m/s

The final momentum of the system is:

pfinal = m1v1 + m2v2'

where v2' is the final velocity of puck 2. Since momentum is conserved, we have:

pinitial = pfinal

Substituting the given values, we get:

0.875 kg m/s = (0.35 kg)×(1.47 m/s) + (0.51 kg)×v2'

Solving for v2', we get:

v_2' = (0.875 kg m/s - 0.51 kg*(1.47 m/s)) / 0.51 kg = -0.94 m/s

Therefore, the final velocity of puck 2 is -0.94 m/s in the negative x direction (i.e., towards the left).

Consider a collision between two pucks on a frictionless air hockey table. Puck 1 has a mass of 350 g and an initial velocity of 2.5 m/s in the +x direction. Puck 2 has a mass of 510 g and is initially at rest.

After the collision puck 1 has been deflected by 30 degrees and has a speed of 1.7 m/s. What is the speed and direction of puck 2 after the collision?

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The big bang not produce a significant proportion of elements heavier than helium because in nuclear fusion hydrogen forms helium.

Light elements interact through nuclear fusion to produce heavier elements (up to iron). When interacting nuclei from low atomic number elements like hydrogen (atomic number 1) or its isotopes deuterium and tritium are involved, substantial amounts of energy are released. The first weapons to utilize nuclear fusion's enormous energy potential were thermonuclear ones, also known as hydrogen bombs, which were developed in the decade immediately following World War II. For a detailed history of this development, see nuclear weapon. Given the potential for peaceful uses of the process and the virtually limitless supply of fusion fuel on Earth, there has been a significant push to harness nuclear fusion for the generation of power.

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If the amount demand of a product changes more than proportionally as its price rises or falls, then it is said to be elastic.

The more replacements there are for an item, more elastic the good is, according to definition of an elastic good, which is where change in price results in a large movement in demand. Price elasticity of demand is determined by dividing percentage change in quantity required by the percentage change in price.

Products like cars, appliances, and luxury items that are rarely purchased are examples of elastic commodities. In the event that the cost of these products is momentarily high, consumers may decide to put off buying.

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Answer: 480 N is required to maintain the arrangement .

Explanation:

Given, 320 N  force is required to hold 2 protons in a particular arrangement .

Then the force required to keep 1 proton in a particular arrangement = 320/2

= 160 N

Then if  a proton is replaced by an alpha particle , it is given that a alpha contains 2 protons , then we conclude that after replcament , the arrangement has 1 alpha and 1 proton = 3 protons

Then , the force exerted by 3 protons = 3×160 = 480 N

The force exerted by the arrangement , if one of the protons is replaced with alpha is 480 N

The answer is e)2.

The 4 quantum numbers are as follows:Principal quantum number (n)Azimuthal quantum number (l)Magnetic quantum number (ml)Spin quantum number (ms)

How many distinct sets of all 4 quantum numbers are there with n = 5 and ml = -2?For an electron to be characterized entirely, all four quantum numbers must be present.Let's look at all of the possible values of n, l, and ml for an electron in an atom with n = 5:

For l, the values range from 0 to n – 1, so l can be 0, 1, 2, 3, or 4.For each value of l, ml can take on values that range from –l to l, in increments of 1. So, for l = 2, ml can be -2, -1, 0, +1, or +2.

The number of distinct sets of quantum numbers with n = 5 and ml = -2 will be one, since only one combination of n, l, and ml can give ml = -2:5, 2, -2, ±½Thus, the answer is e)2.

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Answer:

I can't read it if you zoom in its still blurry

Explanation:

read the question to me and I'll try to answer it thx

Answer:

Energy transfer describes the changes in energy (a state function) that occur between organisms within an ecosystem. ... A food chain is a sequence of organisms that are connected by their feeding and productivity relationships; a food web is the interconnected set of many food chains. Energy transfer is a one-way process.

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Answer:

they are equal and act in opposite directions

Explanation:

newton's third law of motion states that if object A exerts a force on object B, then object B will exert an equal but opposite in direction force.

hope it helps, I think my response was late,

(False)  Galaxies are not classified solely on the basis of their color. While color can provide some information about a galaxy's age and composition, it is only one factor among many used to classify galaxies. Other factors include their shape, size, brightness, and the presence of specific features such as spiral arms or a central bulge.

In fact, the most widely used system for classifying galaxies, the Hubble sequence, is based primarily on their shape and includes categories such as elliptical, spiral, and irregular galaxies. Additionally, advancements in technology and observational techniques have allowed astronomers to analyze galaxies in greater detail, revealing more information about their structure and properties beyond just their color. Therefore, while color can be a useful tool for studying galaxies, it is not the sole factor used in their classification.

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Answer:

The answer(s) for this question are as followed: A, C, & D

Explanation:

I hope this helped, let me know if i missed any.

The average velocity of the following 4 velocity measurements will be d) 8.7 m/s

average of given velocities  = sum of all velocities divided by number of velocity mentioned in the question

average velocity = ( v1 + v2 + v3 + v4 ) / 4

                            = ( 9.6 + 8.8 + 7.6 + 8.7 ) / 4 = 8.675 ≈ 8.7 m/s

correct answer d)

The average velocity of the following 4 velocity measurements will be d) 8.7 m/s

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Answer:

B.  10 m

Explanation:

f = v/λ = (20 m/s)λ / (5 m) = 4 Hz    original frequency

1/2(4 Hz) = 2 Hz   half the original frequency

(20 m/s) / λ = 2 Hz

λ = (20 m/s) / (2 Hz) = 10 m

The second wavelength would increase to 10 m

According to Bekesy's place theory of hearing, the frequency of a sound correlates to the area along the organ of Corti where the greatest number of nerve cells are activated.

By using a circular window to transmit sound vibrations to the cochlear fluid, von Békésy found that the traveling wave was generated along the length of the basilar membrane, and that the point of maximum amplitude varied depending on the fundamental frequency of the vibration.

According to the place theory of hearing, the location along the basilar membrane where each frequency of a sound produces vibrations affects how we hear it.

A sound of 6,000 hertz, for instance, would excite the area of the basilar membrane that has a 6,000 hertz characteristic frequency.

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Answer:

0.25 amps

Explanation:

V = IR

125 = I(500)

I = 0.25 amps

The equipment which permitted the first direct measurement of plate movement is Global positioning system (GPS). The correct option is D.

The Global Positioning System (GPS) enables the direct measurement of plate motion. Geodesy is the science of measuring the positions and shapes of the Earth. This network of satellites is more stable than the Earth's surface, so when a whole continent moves somewhere at a few centimetres per year, GPS can tell.

A significant obstacle to comprehending plate tectonics is measuring the velocity of the plates in relation to one another. Seismometers have been used by scientists for a long time to track vibrations brought on by plate motion, especially during significant occurrences like earthquakes.

The question is incomplete. The complete question contains options. They are 'A. Satellite laser ranging (SLR) B. Light detection and ranging (LIDAR) C. Echo sounding D. Global positioning system (GPS)'

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Answer:

blue and purple light

Explanation:

Light waves have very, very short wavelengths. Red light waves have wavelengths around 700 nanometers (nm), while blue and purple light have even shorter waves with wavelengths around 400 or 500 nm.

Answer:

an equation is balanced when the same number of each element is represented on the reactant and product sides. equations must be balanced to accurately reflect the law of conservation of matter.

Answer

In the parallel circuit, you have to position the switch on only one of the loops.

Answer:

apply more energy to the object with more mass

Explanation:

The kinetic energy of Shawn, if the he has a mass of 43. 8 kg is 14.18 J.

This is the energy of a body due to its motion.

To calculate Shawn's kinetic energy, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, Shawn's kinetic energy is 14.18 J.

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The initial angular velocity of the tire  in  counterclockwise direction was  91 radian/second.

The vector representation of rotation rate, or how quickly an item rotates or revolves in relative to another point, is called angular velocity.

Given that angular acceleration of the tire in counterclockwise direction = 16 rad/sec^2.

Final angular velocity in  counterclockwise direction = 95 rad/second.

time taken = 0.25 second.

Hence, initial angular velocity in  counterclockwise direction = final angular velocity - angular acceleration× time

= (95 - 16×0.25) radian/second

= 91 radian/second.

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