9. Why does water behave in this unusual fashion?

Answer:

within the pastor gram test you'll be able to how many sit ups you can do

Explanation:

because with instrucstions you can be guided and not everywhere with it

Answer: In a battery, voltage determines how strongly electrons are pushed through a circuit, much like pressure determines how strongly water is pushed through a hose. Most AAA, AA, C, and D batteries are around 1.5 volts. Imagine the batteries shown in the diagram are rated at 1.5 volts and 500 milliamp-hours.

Explanation: Today "AA" is frequently used as a size designation, irrespective of the battery's electrochemical system. The main numbers used for the most common NiMH and NiCad battery

To produce a voltage of 1.5 V with a Voltaic pile, we would need either two zinc pennies and one copper nickel or one zinc penny and three copper nickels.

A Voltaic pile is an early type of battery that consists of alternating discs of two different metals (such as copper and zinc) separated by cardboard soaked in an electrolyte solution. Each pair of metal discs and cardboard makes up one cell of the battery, and the voltage of the battery depends on the number of cells connected in series.

To calculate how many pennies and nickels would be needed to produce a voltage of 1.5 V, we need to consider the voltage generated by each cell and the number of cells required to achieve a total voltage of 1.5 V.

One zinc penny produces approximately 1.1 volts, and one copper nickel produces approximately 0.5 volts. To get a total voltage of 1.5 V, we could arrange one zinc penny and one copper nickel in series, but this combination would produce a voltage of only 1.6 V (1.1 V + 0.5 V).

To get as close to 1.5 V as possible, we could use two zinc pennies and one copper nickel in series, which would produce a voltage of 1.7 V (1.1 V + 0.6 V).

Alternatively, we could use one zinc penny and three copper nickels in series, which would also produce a voltage of 1.5 V (1.1 V + 0.4 V + 0.5 V + 0.5 V).

Therefore, To produce a voltage of 1.5 V with a Voltaic pile, we need either two zinc pennies and one copper nickel or one zinc penny and three copper nickels.

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Answer:

Choice A & Choice B

The proteins are encoded by genes with different nucleotide sequences, they likely have different functions. The correct options are A and B.

Genes with various nucleotide sequences encode the proteins. Protein 1 and Protein 2 have distinct amino acid sequences, indicating that they are encoded by genes with different nucleotide sequences.

Because the amino acid sequences of Protein 1 and Protein 2 differ so greatly, it is likely that they have separate activities.

The assumption that proteins must be found in diverse parts of the body is not always correct. Although proteins with distinct activities may be found in different parts of the body, variations in their amino acid sequences cannot be used to identify this.

Thus, the correct options are A and B.

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The role of thermal energy is to balance the electrical energy lost from the light bulb.

The law of energy conservation states that energy can neither be created nor destroyed but can be transformed from one form to another.

This is a form of energy that occurs due to rise in temperature.

The role of thermal energy is to balance the electrical energy lost from the light bulb.

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Answer: yes

Explanation: Having a higher metabolism can help you lose weight and keep it off, while also giving you more energy.

Explanation:

chemical energy into electrical energy

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Resistance is a type of opposition force due to which the flow of current is reduced in the material or wire. Length, temperature, thickness are the factors that affect the resistance of a material.

Resistance is a type of opposition force due to which the flow of current is reduced in the material or wire. Resistance is the enemy of the flow of current.

The relation of resistance with length and thickness is given by ;

[tex]\rm R= \frac{\rho l}{A}[/tex]

Hence the value of resistance is directly propotional to length and inversly propotional to the area or thickness of the wire.

As the value of temperature increases, the value of resistance in the material is increasing.

Hence length, temperature, thickness are the factors that affect the resistance of a material.

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Answer:

length, thickness and temperature

Explanation:

2022

Suppose the Sun moved twice the distance from Earth then the time period of the revolution of the earth around the sun would increase resulting in an increase in the number of days of the year.

It is a system in which the sun's gravitational attraction causes all the planets and celestial bodies to revolve around it.

The Sun is believed to be located in the system's center in the heliocentric concept upon which our Solar System is founded.

If the Sun were to move twice as far away from Earth, the length of time it would take the Earth to complete one rotation would lengthen, increasing the number of days in a year.

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They are reciprocals.

That is . . .

-- Frequency  =  1 / period

and

-- Period  =  1 / frequency .

the frequency is the inverse of the period, an increase in frequency results in a decrease in the period, and vice versa.

The frequency of a recurrent occurrence, such as a wave, during a given time period, is measured using this unit. A cycle is a single instance of the pattern's repetition. Only waves that are moving and constantly shifting in location may exhibit frequency. The frequency of a wave can be used to estimate its speed.

The relationship between the frequency (f) and period (T) in simple harmonic motion is inverse.

We may mathematically represent this connection as follows:

f = 1/T

where f is the frequency in hertz (Hz), and T is the period in seconds (s).

The difference between the period and the frequency is how many oscillations or cycles occur in a given amount of time.

A pendulum, for instance, would have a frequency of 1 Hz and a period of 1 second if it oscillates once per second.

The frequency and period are inversely correlated, thus as the frequency rises, the period decreases, and vice versa.

As a result, frequency and period have an inverse connection in simple harmonic motion, where a rise in one variable causes a reduction in the other.

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Answer:

▪Ans : An ohmic resistor is a resistor that obeys Ohm's law. For example: all metallic conductors (such as silver, aluminium, copper, iron etc.) The slo[e of the V-I graph gives the resistance.

[tex]#SolutionGiven[/tex]

Answer:

Option 3

Explanation:

O Option C is NEGATIVELY CHARGED, meaning it has GAINED ELECTRONS resulting in a GREATER number of ELECTRONS than PROTONS.

Answer:

Option C.

Explanation:

Firstly, if object A has a positive charge then it means object B also has a positive charge since both the objects are repelling each other (similar charges repel).

Secondly, object C is attracting object B, this means object C has a negative charge since we already know object B has a positive charge (different charges repel each other).

So here, the only correct will be C, "Object C is negatively charged meaning it has gained electrons resulting in a greater number of electrons than protons."

This is because gaining electrons results in more negative charge than positive charge making the object negatively charged.

Answer:

True

Explanation:

All waves have frequencies.

Answer:

Well the answer is TRUE... AND IM JUST WRITING THIS TO MAKE THE ANSWER LONGER

We see here that assuming constant acceleration, the speed at 14s will be 70km/hr.

Speed is a measure of how fast something is moving, typically measured as distance traveled per unit of time. It is a scalar quantity, meaning that it has magnitude but no direction.

The SI unit for speed is meters per second (m/s), but it can also be expressed in other units such as kilometers per hour (km/h), miles per hour (mph), feet per second (ft/s), and so on.

The formula for calculating speed is:

Speed = Distance / Time

It is clear from the graph that as time increases, there is an increase in speed.

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Answer:

By increasing the temp the faster the heat is transferred so faster the substance cools

And vice versa

It's a pleasure to be helping you today with your physics question!

Answer:

[tex]23.1m/s[/tex]

Explanation:

We want to find the initial speed of the ball.

To do this, we have to apply the formula for the time of flight of a projectile:

[tex]T=\frac{2_{v0~sin 0} }{g}[/tex]

where θ = angle of flight

g = acceleration due to gravity

v0 = initial speed

Therefore, substituting the given values into the formula, we have that:

[tex]\boxed{4.2=\frac{2~x~_{v0~sin63} }{9.8}}[/tex]

⇒ 2 ×[tex]_{v0}[/tex] ×0.8910= 9.8 × 4.2

⇒[tex]\boxed{{v0}=\frac{9.8~times~4.2}{2~times~0.8910}}[/tex]

[tex]\boxed{{v0} =23.1m/s}[/tex]

That is the initial speed of the ball.

I hope this helps you!

Good Luck with your Assignment!

Answer:

Explanation:

So:

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1

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Answer:

Compounds

Explanation:

Answer:

A Thermal energy was converted to kinetic energy

Answer:

[5710 RPM]

Explanation:

The solubility changes because the metal is now attract the negative charge atoms due to forming of positive ion on it.

Solubility of a metal ion affect its toxicity because due to change of ion, the metal behaves differently which affect its toxic nature so we can conclude that the changes of ions greatly affect solubility and toxicity.

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The process by which two or more tiny nuclei unite to generate a bigger nucleus is known as a nuclear fusion reaction. Heavier atoms are products of a fusion reaction.

The process by which two or more tiny nuclei unite to generate a bigger nucleus is known as a nuclear fusion reaction.

For example, the fusion of two hydrogen atoms produces more energy than the fusion of one helium atom, and surplus energy is expelled into space upon binding.

Hence heavier atoms are e products of a fusion reaction.

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Answer:

B C D

Explanation:

Explanation:

a.)

Reactants : CO2 (carbondioxide) + H2O (water)

Products : O2 (oxygen) + C6H12O6 (glucose)

b.)

Reactants: Na ( Solid Hydrogen) + H2O (water)

Products: H2 (hydrogen gas) + NaOH (sodium hydroxide)

Answer:

Imperial :DDDD

Hi there!

Recall the following:

[tex]C = \frac{Q}{V}[/tex]

C = Capacitance (F)
Q = Charge (C)
V = Potential difference (V)

The equation for the capacitance of a parallel-plate capacitor:

[tex]C = \frac{\epsilon_0 A}{d}[/tex]

C = Capacitance (F)
ε₀ = Permittivity of Free Space

A = Area of plates (m²)
d = distance between plates (m)

If the distance is halved, the capacitance will DOUBLE since there is an inverse relationship between capacitance and distance.

Thus, something has to change in regards to the charge or voltage for it to match the doubled capacitance.

Since the capacitor is ISOLATED, it is not connected to a battery, so the voltage is NOT maintained constant. The VOLTAGE will consequentially be changed, while the electric field will be unchanged.

Recall the equation for potential difference:

[tex]V = Ed[/tex]

If the distance is halved, the voltage will be halved. This is mirrored by the doubled capacitance. Thus, the electric field will remain the SAME.

oscilloscope is set to 2volts/div, with the centre line representing 0V. It is connected to a source of potential difference, and the trace is a horizontal line, three divisions above the centre line

No, knowing all the forces is not enough to know the direction of motion.

The second Newton's law states that:

F = m*a

This says "force equals mass times acceleration".

Where acceleration is the rate of change of the speed. From that equation, we conclude that the acceleration is in the same direction that the net force.

So, if we know all the forces acting on an object, we know the net force acting on it, then we know the direction of the acceleration.

No, the object does not need to move in the same direction than its acceleration, the direction of motion will also depend on the initial velocity of the object (if it is initially moving with constant speed).

If we don't know that, we can't find the direction of motion.

An example of this can be a car going at 100km/h east-wise.

Then we apply a net force due west, then we have an acceleration due west. But as the initial direction of motion was east, the car will still move to the east, but the velocity will decrease gradually.

So as you can see in that example, we need to know the initial velocity to know the direction in which the object is moving.

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green liquid becoming a red liquid

Among the given options, the chemical change is option c, green liquid becoming red liquid by the some reactions. All other changes are physical changes.

Chemical changes are those which involves the breaking or making of chemical bonds and the formation of a new product that have properties different from the initial substances.

Physical changes does not involve any change in chemical bonding. They include change in size, shape, conducting, solubility all phase changes etc are physical changes.

The change in color of a solution is due to the formation of a new product with different color indicating the occurrence of a chemical reaction. Freezing, boiling, all are physical changes. Hence, option c is correct.

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