Convert -0.75 volts CSE to Zn reference electrode
A) -350mVzn
B) 450mVzn
C) 550mVzn
D) -550mVzn
E) 350mVzn

Shawn's speed relative to Susan's reference frame is approximately 21.33 mph.

To determine Shawn's speed relative to Susan's reference frame, we can use the concept of vector addition. Since they are moving in different directions, their velocities can be treated as vectors.

Let's consider Susan's reference frame as the stationary frame of reference. In this frame, Susan's velocity is 0 mph because she is not moving relative to herself. Therefore, we can calculate Shawn's velocity relative to Susan by considering their relative velocity.

Using vector addition, we can find the relative velocity by subtracting Susan's velocity vector from Shawn's velocity vector. Since Susan is driving north, her velocity vector would point upwards, while Shawn is driving east, so his velocity vector would point to the right.

The magnitude of Shawn's velocity relative to Susan's reference frame can be calculated using the Pythagorean theorem:

Relative speed = \(\sqrt{(Shawn's velocity)^2 - (Susan's velocity)^2}\)

Given:

Susan's velocity = 59 mph (north)

Shawn's velocity = 55 mph (east)

Relative speed = \(\sqrt{(55 mph)^2 - (59 mph)^2}\)

= \(\sqrt{3025 mph^2 - 3481 mph^2}\)

= \(\sqrt{(-455) mph^2}\)

≈ 21.33 mph

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A negaive ion has more electrons bound to it than protons in its nucleus.

Answer:

The answer is most likely C.

Ready-to-eat foods are stored at the top of the fridge, away from raw foods so that harmful bacteria cannot transfer from the raw food to the cooked food. Raw meat, poultry and fish in sealed containers to stop them touching or dripping onto other foods.

Answer:

Explanation:

uncovered

We will have that the flux density will be:

The deficiency in Ernest Rutherford’s model of the atom about electron orbits was solved by Bohr’s work with atomic spectra led him to say that the electrons were limited to existing in certain energy levels, like standing on the rungs of a ladder; option A.

Atomic models are those models which were used to describe the structure of atoms by various scientists.

The models of the atom include:

Because of certain deficiencies found in the atomic models by the various scientists, several modifications were made on the atomic model.

The fact that Ernest Rutherford’s model of the atom failed to explain why electrons were not pulled into the atomic nucleus was explained by Bohr’s work with atomic spectra led him to say that the electrons were limited to existing in certain energy levels, like standing on the rungs of a ladder.

In conclusion, atomic models were used to explain the structure of atoms.

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Answer:

The answer to this is A: Bohr’s work with atomic spectra led him to say that the electrons were limited to existing in certain energy levels, like standing on the rungs of a ladder.

Explanation:

I just did the quiz

\( \sf{• \: Power \: (P) = 60 \: w}\)

\( \sf{• \: Resistance \: (R) = 880 \: Ω}\)

\( \\ \)

\( \sf• \: The \: Current \: (I).\)

\( \\ \)

\( \huge\bf{ \underline{ Solution :- }}\)

\( \sf We \: know \: that,\)

\( \bf \red {\bigstar{ \: P = I^{2} R}}\)

\( \rightarrow \sf 60 = I^{2} \times 880\)

\( \rightarrow \sf \frac{60}{880} = I^{2} \)

\( \rightarrow \sf I^{2} = 0.0681\)

\( \rightarrow \sf I = \sqrt{0.0681}\)

\( \rightarrow \sf I = 0.261 \: \: (approx.)\)

\( \\ \)

\(\bf The \: \: value \: \: of \: \: I \: \: is \: \: 0.261 \: \: Amps. \: \: (approx.)\)

Plastic deformation behavior is the ability of a material to undergo a permanent deformation without fracturing or breaking. FCC (face-centered cubic), BCC (body-centered cubic), and HCP (hexagonal close-packed) metals all have different crystal structures and therefore exhibit different plastic deformation behavior.

In FCC metals, plastic deformation occurs through the movement of dislocations within the crystal structure. The dislocations move easily due to the closely packed atomic arrangement, resulting in a high ductility and toughness. FCC metals are commonly used in applications that require high deformability, such as in electrical wiring, jewelry, and coins.

In BCC metals, plastic deformation occurs through the movement of edge dislocations. The arrangement of atoms in BCC metals creates a more complex structure, which makes it more difficult for dislocations to move and results in lower ductility and toughness. BCC metals are commonly used in applications that require high strength, such as in structural components of buildings and bridges.

In HCP metals, plastic deformation occurs through the movement of screw dislocations. HCP metals have a close-packed hexagonal structure, which makes dislocation movement more difficult than in FCC metals but easier than in BCC metals. HCP metals are used in a variety of applications, including in the aerospace and defense industries due to their high strength-to-weight ratios.

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Delegation When delegating work to other healthcare personnel, a registered nurse should take into account their level of education, training, and experience.

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Answer:

The awnser is d

Explanation:

i know cause i took the test

Answer:

D  34 m/s east

Explanation:

Took the test got 100%

Answer:

The balloon expands in the number of particles per cubic centimeter decreases. This happens because as it expands there is a decrease in the density of area. The Dead Sea is a solution that is so dense that you easily float on it.

You can prevent a mask from fogging under water by lowering the surface tension of the water.

Surface tension is the measure of how strongly the molecules of a liquid are attracted to each other at the surface.

When the surface tension of water is high, it causes water molecules to form a cohesive layer, which can trap air and lead to fogging on surfaces like a diving mask. To prevent this, an anti-fog solution or spray can be applied to the inside of the mask's lenses.

These solutions work by reducing the surface tension of the water droplets that form on the lens, allowing them to spread out and form a thin, uniform layer that is less likely to fog up.

A well-fitting mask can also help prevent water from seeping in, which can contribute to fogging.

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Answer: Varies

Explanation:

Because moving his legs require force.

Answer:

He is also a low-level telekinetic

Explanation:

He is a telepath and doesn’t have telekinesis btw.

Answer:

Well okay do it what's your question ?

Answer:

yes

Explanation:

Water freezes more quickly when it is exposed to colder temperatures and when it is in a container with a large surface area, which allows for faster heat transfer.

Water freezes at 32 degrees Fahrenheit (0 degrees Celsius). The time it takes for water to freeze at this temperature depends on several factors such as the volume of water, the container it is in, and the environment in which it is located.

Assuming that the water is in a typical home freezer and the volume of water is not too large, it would typically take several hours for the water to freeze completely. The exact amount of time it takes for the water to freeze would depend on the volume of water and the temperature of the freezer.

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Answer:

C is correct

Explanation:

The statement that best describes how the phase of the Moon changes from a full moon to a new moon is as follows:

Thus, the correct option for this question is C.

The different phases of the moon may significantly include the new Moon, waxing crescent, first quarter, waxing gibbous, full Moon, waning gibbous, third quarter, and waning crescent. This cycle of phase change of the moon repeats once a month.

The Earth completes its one rotation around the sun in 365.25 days. While the moon completes its one rotation around the Earth in 29.5 days.  The rotation of the moon around the earth leads to phase change of it. This is because when the moon rotates around the sun, it directly or indirectly causes its exposure to the sun where its phase changes.

In the diagram above, when there is a full moon, the earth is present between the sun and the moon. But when a new moon arises, the moon is present between the earth and the sun.

Therefore, the correct option for this question is C.

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Answer:

Copper isn't ferromagnetic,

Aluminum isn't ferromagnetic,

String has a ferromagnetic property

So in conclusion:

The answer is strings :)

Answer:

S=29.298m/s

Explanation:

Use S=d/t

So, S=120m/4.1s= 29.298m/s

Answer:

positive direction with a changing velocity. An object which moves in the positive direction has a positive velocity. If the object is slowing down then its acceleration vector is directed in the opposite direction as its motion (in this case, a negative acceleration

The input voltage of a transformer must be AC (alternating current) because transformers rely on the property of AC for effective electromagnetic induction, which is essential for their operation.

Electromagnetic induction occurs when a varying magnetic field induces an electric voltage in a conductor. In the case of a transformer, an alternating current passing through the primary coil generates a changing magnetic field, which, in turn, induces a voltage in the secondary coil.

AC is particularly well-suited for this process due to its constant change in direction, resulting in a continuously fluctuating magnetic field. This dynamic magnetic field induces a voltage in the secondary coil, facilitating efficient energy transfer from the primary coil to the secondary coil.

Conversely, if a transformer were to be powered by DC (direct current), the magnetic field produced by the unidirectional current would remain constant. As a result, there would be no continuous alteration in the magnetic field to induce a voltage in the secondary coil, severely limiting the transformer's functionality.

Hence, the utilization of AC input voltage is critical for transformers as it enables efficient energy transfer and voltage transformation between various circuits or power systems.

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You're standing on top of a building and throw a hammer straight down with an initial velocity of -11 m/s. it takes 4 seconds for the hammer to hit the ground. Must be standing 122.4 high off the ground you threw the hammer  

given

initial velocity = -11 m/s

time = 4 seconds

final velocity = 0

acceleration due to gravity = 9.8 \(m/s^{2}\)

Using kinematics equation

s = u*t + 1/2 * g * \(t^{2}\)

s = - u*t + 1/2 * (-g) * \(t^{2}\)

s = -11 * 4 - 1/2 * 9.8 * 16

s = - 122.4 m

Must be standing 122.4 high off the ground you threw the hammer  

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Answer:

1.5 m

Explanation:

a = v/t

a = 2/1,5 = 4/3

x = 1/2 a t² + vt + x

x = 1/2 × 4/3 × 9/4 = 3/2 =1.5 m

Answer:

0.5 0c

Explanation:

yes yes yes yes

The size of a cam will be bigger if the base circle is smaller.

A cam is a rotating or sliding part of a machine that is responsible for transmitting motion to other parts of the machine. A cam follower is in contact with the cam's surface, and its motion is translated to a reciprocating motion of the follower.

A cam's shape determines how the follower's motion is translated, and the size of the cam has a direct impact on the size and complexity of the machine it is used in. The base circle is the circle that forms the basis of the cam's geometry. It is the circle that the cam would have if it were not modified. If the base circle is smaller, then the size of the cam will be bigger.

This is because a smaller base circle requires a cam with more complex geometry to achieve the desired motion transmission. A larger cam will require more material and will be more complex to manufacture than a smaller cam.The size of a cam is directly proportional to the size of its base circle.

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Rolling friction is the type of friction that causes bearings to not waste much energy. The design of the bearing and the materials used in its construction play a critical role in reducing friction and improving efficiency. Bearings that rely on rolling friction are the most efficient because they reduce resistance to motion, resulting in a smoother operation and less energy consumption.

The type of friction that causes bearings to not waste much energy is called rolling friction or rolling resistance. Rolling friction occurs when an object, such as a bearing, rolls over a surface without sliding. It is generally lower than sliding friction because it involves less contact area and deformation between the rolling object and the surface it is rolling on.

In bearings, rolling friction is minimized by using smooth and precisely shaped rolling elements, such as balls or rollers, which make contact with the inner and outer raceways. These rolling elements reduce the surface area of contact, resulting in lower friction compared to sliding friction.

Additionally, bearings are typically designed with lubrication systems to further reduce friction. The lubricant, such as oil or grease, forms a thin film between the rolling elements and raceways, reducing friction and dissipating heat generated during operation.

By minimizing rolling friction and optimizing the design and lubrication of bearings, the energy wasted in the form of heat due to friction is significantly reduced. This is important for various applications where efficiency and energy conservation are crucial, such as in machinery, vehicles, and industrial equipment.

Conclusion: Therefore, it can be concluded that rolling friction is the type of friction that causes bearings to not waste much energy. The design of the bearing and the materials used in its construction play a critical role in reducing friction and improving efficiency. Bearings that rely on rolling friction are the most efficient because they reduce resistance to motion, resulting in a smoother operation and less energy consumption.

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Answer:

350N

Explanation:

Given parameters:

Mass of the man = 125kg

Mass of the watermelon = 6kg

Mass of cantaloupe  = 3kg

Mass of potatoes  = 6kg

Acceleration  = 2.5m/s²  

Unknown:

Force required to get home  = ?

Solution:

To find this force we use;

    Force  = mass x acceleration

mass  = 125 + 6 + 3 + 6  = 140kg

 So;

      Net force = 140 x 2.5  = 350N

Answer:

I don't understand the question

Explanation:

Answer:

\( \mathbf \blue{Pressure}\)

\( \mathbf \green{James \:Prescott \: Joule}\)

\( \mathbf \orange{36.5 - 37 \: °C}\)

\( \mathbf \pink{Daniel \: Farhrenheit}\)

Answer:

The heat necessary to warm 500g of water from 20°C to 65°C is 37,620 J.

Explanation:

GIVEN: m = 500 gm, T₂ = 65°C AND T₁  = 20°C, we know that c (specific heat capacity) = 4180

TO FIND: The heat necessary to warm 500g of water from 20°C to 65°C.

SOLUTION:

By using the heat equation,

              Q=m c ΔT  

             ΔT = T₂ - T1

             ΔT = 65 - 20 = 45°C

In this case,

Q = 0.2 × 4180 × 45 = 37,620 J

Pure water can be made to boil at a temperature below 100°C by reducing the pressure on the surface of the water. This is achieved through a process known as vacuum distillation.

In a normal situation, water boils when its vapor pressure equals the atmospheric pressure above it. But at lower pressures, the vapor pressure of water is also lowered, causing it to boil at a lower temperature. By reducing the pressure above the surface of the water, pure water can be made to boil at temperatures lower than 100°C. This is the principle behind vacuum distillation, which is commonly used in chemical and industrial processes to purify liquids or extract desired compounds from them.

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