Place each of the following labels in the proper position on the curve when each of the indicated items would occur
A:
1. When sodium ions arrrive at the axon hillock, they depolarize the membrane at that point
2. Potential across the membrane is becoming less negative
B:
1. At threshold, voltage-gated Na+ channels open quickly
2. Threshold
3. -55 mV
4. Sodium inflow is greater than at resting membrane potential or any other time
C:
1. Voltage-gated potassium channels open
D:
1. Hyperpolarization
E:
1. Resting membrane potential
2. -70 mV

Answer:

Short answer, because copper wire does not have high resistance.

Explanation:

Answer:

The red substance was ionic. The white substance was molecular.

Explanation:

B.C.

If Clarisse had three substances, A white substance was waxy and malleable. A red crystal was translucent, and it cracked when she hit it with a hammer. A silver substance could be flattened by hitting it with a hammer, but it did not crack. the two true statements are the red substance was ionic and the white substance was molecular. therefore the correct option is B and D.

The chemical compound is a combination of two or more either similar or dissimilar chemical elements, for example, H₂O is a chemical compound made up of two oxygen atoms and a single hydrogen atom.

These chemical compounds are formed because of different types of bonds between the constituent's elements, the chemical bonds are mainly ionic bonds, covalent bonds,s, and hydrogen bonds.

Ionic bonds are formed due to the transfer of electrons between two bond-forming pairs differentiated by their electronegativity.

Covalent bonds are formed by the sharing of electrons. Generally, organic compounds are formed as the reason for covalent bonds.

As the white substance is waxy and malleable and the silvers substance could be flattened by hitting with a hammer but it did not crack it means the white substance is a metallic material that is molecular in nature , the red crystal is translucent and cracked when hit with a hammer this means it is ionic in nature.

Thus, the correct options are option B and option D.

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Answer:it’s c SrBr2

Explanation:

Answer above is correct

Explanation:

The cocountable topology is coarser than the usual topology and is not Hausdorff.

Let X be an infinite set and P (X) the power set of X. We define three topologies on X: the cofinite topology, the left ray topology, and the cocountable topology. We will compare each topology to the usual topology on X. We denote the usual topology by u.  

The Cofinite Topology Let F be the family of subsets of X such that F is either finite or X. That is, F = {A ⊆ X : A is finite or A = X}. The cofinite topology on X is defined by Tcf = {U ⊆ X : X \ U ∈ F} ∪ {Ø}. The open sets in the cofinite topology are the complements of finite sets plus the empty set.

A subset A of X is closed if and only if A is either X or finite. Thus, in the cofinite topology, every infinite subset of X is dense in X. Compared to the usual topology, the cofinite topology has fewer open sets and is coarser. In other words, the cofinite topology is a weaker topology than the usual topology.

The cofinite topology is also Hausdorff since given any two distinct points x, y ∈ X, the complements of the cofinite sets containing x and y are disjoint

. The Left Ray Topology Let F be the family of subsets of X such that F contains the empty set and all sets of the form L(a) = {x ∈ X : x < a}, where a is any element of X. The left ray topology on X is defined by TL = {U ⊆ X : U = ∅ or U contains some set L(a) from F}.

The open sets in the left ray topology are the empty set, all left rays L(a), and all sets that contain a left ray L(a). A subset A of X is closed if and only if A is the empty set, X, or contains the right endpoint of every left ray it meets. The left ray topology is finer than the cofinite topology but coarser than the usual topology.

Thus, the left ray topology is a weaker topology than the usual topology but stronger than the cofinite topology.

The left ray topology is also Hausdorff. The Cocountable Topology Let F be the family of subsets of X such that F is countable or all of X. The cocountable topology on X is defined by Tcc = {U ⊆ X : X \ U ∈ F} ∪ {Ø}. The open sets in the cocountable topology are the complements of countable sets plus the empty set.

A subset A of X is closed if and only if A is either countable or all of X. Thus, in the cocountable topology, every countable subset of X is nowhere dense.

Compared to the usual topology, the cocountable topology is coarser. The cocountable topology is also not Hausdorff since any two nonempty open sets have nonempty intersection. Hence, in the cocountable topology, the closure of a singleton set is the whole space X.

Among the three topologies, the cofinite topology is the weakest topology, and it is also a Hausdorff space. The left ray topology is a topology that is weaker than the usual topology but stronger than the cofinite topology, and it is also a Hausdorff space. Finally, the cocountable topology is coarser than the usual topology and is not Hausdorff.

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Answer:

get some

get some ⛽⛽⛽⛽⛽

pour the ⛽ on the module,

get that on itttttt and booooooommmm

Explanation:

Answer:7.056 m/s²

Explanation: Resultant force = g - μmg

ma = g - μmg

a = g(1 - 2μ) / 2

a = 7.056 m/s²

The phenomenon of size constancy - whereby objects appear relatively constant in size despite variations in proximity or retinal image - is a remarkable aspect of human perception.

To maintain such consistency our brains rely on contextual cues and previous experience with object dimensions. Interestingly even when presented with ambiguous visual inputs we strive to decipher them by maintaining perceptions consistent with what we expect regarding the relative sizes of objects.

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When working through these problems, think about the heat in terms of movement of the molecules of water.

Heat is transferred from the water to the surroundings --- water molecules slowing down.

Heat is transferred to the water from the surroundings --- water molecules heating up.

Heat transfer is the transfer of energy due to the difference of temperature between two different places. The main discussion in heat transfer is how the energy in heat can move places and the rate of transfer under certain conditions. Heat transfer includes the processes of inflow and outflow of heat. In industrial processes, heat transfer is used to achieve the required temperature in the industrial process and maintain the required temperature throughout the process.

Heat transfer from one object to another can occur by conduction, convection, and radiation. The determinant of heat transfer is the temperature difference. The direction of heat transfer starts from a medium with a high temperature to a medium with a lower temperature. Heat transfer can occur with a single process or multiple processes.

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The fission of 1 kg of coal does not release any energy because coal does not undergo nuclear fission.

However, the combustion of 1 kg of coal releases approximately 35 MJ (megajoules) of energy based on its heating value. Combustion is a chemical reaction that involves the reaction of coal with oxygen, resulting in the release of thermal energy in the form of heat.

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Answer:

1200

Explanation:

a = 1.5 m/s2

F = 1800N

M =?

F = Ma

M = F/a = 1800/1.5 = 1200Kg

Given:

A ball bouncing eventually comes to stop.

To find:

What kind of a system is this?

Explanation:

An open system is a system where the free exchange of matter and energy with the surroundings takes place.

A closed system is where only the energy of the system is shared with the surrounding. In these kinds of systems, the exchange of matter does not take place.

An isolated system is where neither matter nor energy is exchanged between the system and the surrounding.

When a ball is bouncing, it gradually loses its kinetic energy to the surroundings and eventually comes to stop. But the mass of the ball remains the same. Thus this is a closed system.

Final answer:

The given system is a closed system.

Therefore the correct answer is option B.

Answer:

My teacher said 36m when I asked her

Explanation:

HOPE THIS HELPS!!

Answer:

Yes you are right

Explanation:

hope this helps and I get the Brain thingy whatever it call

Answer:

607.68N [weight on planet Y]

Explanation:

Using the formula

\(w = mg\)

Where w is the weight, m is the mass and g is the gravity.

Gravity (g) on planet Y is 14.4 m/s/s

Object has a mass (m) of 42.2 kg

Weight (w) on planet Y is w

-

NOTE: '•' MEANS MULTIPLICATION

NOTE: WEIGHT IS MEASURED IN NEWTONS (N)

-

Inputing the values into the formula, and solving it...

== 607.68N [weight on planet Y]

Answer:

4.1 Introduction. Our modern society depends heavily on thermal energy sources derived mostly from coal, petroleum, and natural gas combustion.

Answer:

Brainliest please

Explanation:

I will start by saying that Metals by their very nature are conductors of electricity. Now metals exhibit “metallic bonding” which holds its structure together. Unlike other materials which exhibit covalent bonding, it's atoms are not bonded by “electron sharing”. Rather they are bonded by the availability of valence electrons. Now within a metals atomic structure, the metal atoms lose the electrons in thier outermost shell (valence electrons), thus becoming positively charged ions (cations )

Answer:

because you increase pressure in the straw

Explanation:

to suck the water up the straw its increasing pressure

Considering the coordinates of the radars as well as the direction of the object in order to determine the object's position in terms of distance and angle. Sincе thе radars arе situatеd at (0,0) and thе sеcond radar is on thе еast sidе of thе first onе, wе can assumе that thе first radar is locatеd on thе x-pivot and thе sеcond radar is locatеd on thе positivе y-hub.

Lеt's say thе objеct is dеtеctеd at coordinatеs (x, y). The objесt's y-coordinativity will be negative and its x-coordinativity positive as it approaches the southern direction in the first quadrant.

We can use the distancе formula to determine the object's diameter from its origin (0, 0):

Distancée = (x + y) 2 The angle can be calculated with trigonometry. The angle can be summarized as:

= arctan(y/x) ii) We must consider the circles of overlap for each radar in order to calculate the overlap from the radar signal intersection in the first quadrant.

Due to the fact that both radars have distinctive overlap and divide the covered area into circles, the overlapped area will be the intersection of these circles.

Thе ovеrlapping arеa can bе calculatеd by finding thе arеa of thе intеrsеction of two circlеs. The formula for the area of the intersection of two circles can be complex and depends on the specific radii and dimensions that exist between the circles' centers.

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The probability of stopping at a traffic light is about 47.22%.

With 10 traffic lights, expect to be stopped for approximately 5 minutes and 45 seconds along the main street.

(a) To calculate the probability of stopping at a particular traffic light, we need to consider the cycle time of the traffic lights. The cycle time is the total time taken for one complete sequence of green, amber, and red signals. In this case, the cycle time is 55 + 17 + 48 = 120 seconds.

The probability of stopping at a particular traffic light can be calculated by dividing the red signal duration by the cycle time. Therefore, the probability is 48/120 = 0.4 or 40%.

However, in California, no one stops on amber, so we need to exclude the amber duration from the calculation. Therefore, the probability becomes 48/(55 + 48) ≈ 0.4722 or 47.22%.

(b) If there are 10 traffic lights on the main street, we can calculate the expected amount of time spent stopped at traffic lights by multiplying the probability of stopping at each traffic light by the average duration of being stopped.

The average duration of being stopped at a traffic light is the sum of the red signal duration and half of the amber signal duration. So, the average duration is (48 + 17/2) = 56.5 seconds. To find the expected amount of time stopped at traffic lights, we multiply the average duration by the number of traffic lights: 56.5 seconds * 10 = 565 seconds.

Therefore, if you drive all the way down the main street, the expected amount of time you are likely to be stopped at traffic lights is approximately 565 seconds, which is equivalent to 5 minutes and 45 seconds.

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Answer:

Number of electron wavelength will Double

Explanation:

let the radius = r  and wavelength = λ

when R doubles and  λ ( wavelength ) remains the same

The number of electron electron wavelengths will double as well

Using Bohr's angular momentum quantization to show this

attached below

Power sources that are connected in parallel should have the same voltage output. This statement is true.

What does it mean when we say two power sources are connected in parallel?  Power sources are connected in parallel to increase the current output. This means that the positive terminals of the power sources are connected to the other positive terminals, and the negative terminals of the power sources are connected to the other negative terminals. This results in the voltage output remaining the same, but the current output increasing. This is useful when more current is required for a particular application. To summarize, when power sources are connected in parallel, the voltage output should remain the same, and the current output should increase.

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Answer:

it's D

Explanation:

Answer:

B. silicate rocks and metals

Terrestrial planets, such as Earth, are primarily composed of silicate rocks and metals. The correct answer is b. silicate rocks and metals.

Silicate rocks, which are made up of silicon and oxygen, are the dominant building blocks of these planets. They include minerals like quartz, feldspar, and mica. Terrestrial planets contain significant amounts of metals such as iron, nickel, and other heavy elements. These metals are found in the planet's core, providing structural strength and contributing to the planet's magnetic field.

This composition differentiates terrestrial planets from gas giants like Jupiter and Saturn, which are predominantly composed of hydrogen and helium. The combination of silicate rocks and metals forms the solid, rocky surfaces that characterize terrestrial planets.

Therefore, The correct answer is b. silicate rocks and metals.

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When the volume in which a gas is contained is increased at a constant temperature, the pressure of the gas will decrease. This relationship between volume, pressure, and temperature is described by Boyle's law, which states that the pressure of a gas is inversely proportional to its volume, at constant temperature.

Here's how increasing the volume of a gas can lead to a decrease in pressure:

1. Gas molecules have kinetic energy: Gas molecules are in constant random motion and have kinetic energy. When gas is contained in a smaller volume, the gas molecules collide more frequently with the walls of the container, resulting in higher pressure.

2. Decreased number of collisions: When the volume of the container is increased, the gas molecules have more space to move around, and the frequency of collisions with the walls of the container decreases. This reduction in collisions leads to a decrease in pressure.

3. Decreased concentration of gas molecules: Increasing the volume of a gas container also leads to a decrease in the concentration of gas molecules in the container. This means that there are fewer gas molecules per unit of volume, resulting in lower pressure.

4. Decreased force per unit area: When the volume of the container is increased, the same number of gas molecules now occupy a larger volume, resulting in a lower force per unit area exerted by the gas molecules on the walls of the container. This lower force per unit area leads to a decrease in pressure.

Therefore, when the volume in which a gas is contained is increased at a constant temperature, the pressure of the gas decreases due to the decreased number of collisions, decreased concentration of gas molecules, and decreased force per unit area exerted by the gas molecules on the walls of the container. This relationship is described by Boyle's law, which is an important principle in the study of gases.

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Answer: B

Explanation: The straight line shows the theoretical average of the actual velocity  and the curved line show that it is less than the average velocity of the object within 6 seconds.

straight line:

3. 3,80

6. 6,160

curved line:

A.K.A.-- the only place where the straight line and the curved line meet at is only at coordinate 6,160.

The maximum current passing through the pump is approximately 11 amperes.

To find the maximum instantaneous power dissipated by a 2.5-hp pump connected to a 240-Vrms AC power source, follow these steps:

1. Convert the horsepower (hp) to watts (W): 1 hp is equal to 746 watts, so 2.5 hp × 746 W/hp = 1865 W.

2. Determine the maximum power: For an AC power source, the maximum power is √2 times the RMS power. So, the maximum power = 1865 W × √2 ≈ 2637.4 W.

The maximum instantaneous power dissipated by the pump is approximately 2637.4 watts.

To find the maximum current passing through the pump:

1. Use the formula: Power (P) = Voltage (V) × Current (I).

2. Rearrange the formula to solve for current: I = P / V.

3. Calculate the maximum current: I = 2637.4 W / 240 V ≈ 11 A.

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