Two long straight parallel conductors carry steady current I 1 and I
2 separated by a distance d. If the currents are flowing in the same direction, show how the magnetic field set up in one produces an attractive force on the other.
Obtain the expression for this force. Hence define one ampere.

Answer:

75 cm/second.

Explanation:

Formula:

Walking speed = stride length / time per step

Walking speed = 90cm/time per step

                         = 90cm/1.2 seconds (a common estimate time per step)

                         = 75cm/second.

in this experiment selected random people from various age groups and set a certain common rules of driving as judgmental rules and gave a call when they are in drive to check their skills.

When testing a theory, controlled conditions are crucial. When the independent variable in an experiment design is not changed or altered, this is known as a control condition. Because it maintains the driving circumstances uniform, a control condition is essential to this experiment's success in determining if smartphone use affects one's ability to drive. This would enable the only distinction between the test subjects to be the drivers' use of cell phones. Making ensuring the subjects are all travelling the same route and experiencing the same circumstances could serve as the controlled conditions for this experiment. This might be on a closed course where every subject has the same path. All individuals could use the same vehicle as additional controllers.

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1. Gas particles move randomly and rapidly in all directions and collide with each other and the walls of the container, creating pressure, 2. Liquids and solids have more ordered and restricted motion compared to gases, 3. Solids have fixed positions, liquids can move around each other, and gases move rapidly in all directions, and 4. The phase diagram shows the relationships between the states of matter at different temperatures and pressures and is important for predicting the behavior of substances and optimizing chemical reactions.

A phase diagram is a graph that shows the relationships between the different states of matter of a substance at different temperatures and pressures, providing information on the behavior of the substance under different conditions. It is an essential tool in understanding the behavior of materials in various conditions and in designing chemical processes that operate efficiently under different conditions.

1. Gas Properties simulation allows you to observe the behavior of gas particles. When you put a little gas into the box using the pump, you can see that the gas particles move randomly and rapidly in all directions. They collide with each other and with the walls of the box, creating pressure. When you pump in some lighter particles, such as helium, you can observe that they move faster and more chaotically than the heavier particles. They also bounce off the walls of the box more easily than the heavier particles. Changing the temperature of the gas affects the behavior of the particles. When the temperature increases, the particles move faster and collide more frequently, creating a higher pressure. When the temperature decreases, the particles move slower and collide less frequently, creating a lower pressure.

Based on the observations, a gas can be described as a state of matter in which the particles are widely spaced, move rapidly and randomly in all directions, and are not held together by any significant forces. The gas particles have a large amount of kinetic energy and exhibit rapid motion.

2. States of Matter simulation allows you to see how well liquids and solids match the description of gas particles. When you compare the behavior of gas particles to that of liquids and solids, you can see that liquids and solids have much more ordered and restricted motion than gases. In liquids, the particles are close together and move more slowly, while in solids, the particles are tightly packed and vibrate in fixed positions.

3. The motion of particles in solids, liquids, and gases can be explained using diagrams. In a solid, the particles are packed closely together in a regular pattern and vibrate in fixed positions. In a liquid, the particles are also close together but are not in a fixed pattern and can move around each other. In a gas, the particles are widely spaced and move rapidly in all directions. To create a diagram, you can use circles to represent the particles and arrows to show their motion.

The similarities between the three states of matter include the fact that the particles that make up each state are constantly in motion. The differences lie in the level of motion and the degree of freedom of the particles. Solids have the least amount of freedom, followed by liquids, and gases have the most freedom. Liquids and solids have definite shapes and volumes, while gases have neither definite shape nor definite volume.

4. The phase diagram is a graph that shows the relationships between the different states of matter at different temperatures and pressures. It is important in structure analysis and chemical reaction as it provides information on the behavior of substances at different temperatures and pressures. The phase diagram can help to predict the behavior of a substance under different conditions and can be used to identify the different phases that exist at different points. The phase diagram is also used in industrial processes to optimize chemical reactions and to design chemical processes that operate efficiently under different conditions. Understanding the phase diagram is essential in chemistry and materials science as it provides insight into the behavior of materials under various conditions.

Therefore, 1. Pressure is created when gas particles collide with one another and the container walls while moving randomly and quickly in all directions, 2. Compared to gases, the motion of liquids and solids is more controlled and ordered 3. While liquids can move around one another and gases move quickly in all directions, solids have fixed positions, and 4. The phase diagram is crucial for predicting the behavior of substances and optimizing chemical reactions because it depicts the relationships between the states of matter at various temperatures and pressures.

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The potential energy at Point A is 44 joules. The potential energy at a height of 0.8 m is 32 joules, and to find the mechanical energy at point A, one need to consider both the potential energy and the kinetic energy of the ball.

Potential Energy at Point A: Potential energy is given by the formula PE = mgh, where m is the mass, g is the acceleration due to gravity, and h is the height.

Given: Mass of the ball (m) = 4 kg

Height at Point A (h) = 1.1 m

Acceleration due to gravity (g) = 10 m/s²

Potential Energy at Point A = mgh

Potential Energy at Point A = 4 kg × 10 m/s² × 1.1 m

Potential Energy at Point A = 44 Joules

So, the potential energy at Point A is 44 Joules.

Potential Energy at Height 0.8 m: To find the potential energy at a height of 0.8 m, one will use the same formula.

Given: Height at Point = 0.8 m

Potential Energy at Height 0.8 m = mgh

Potential Energy at Height 0.8 m = 4 kg × 10 m/s² × 0.8 m

Potential Energy at Height 0.8 m = 32 Joules

So, the potential energy at a height of 0.8 m is 32 joules.

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Explanation:

where I is the current, L is the length of the wire, and B is the magnetic field.

If we point our right-hand thumb in the direction of the current (to the right), and our fingers in the direction of the magnetic field (away from us), then our palm will point in the direction of the force.

Answer:

1- bounce rule

2- left

3-11,2

4-true

5- whiffle ball

6- kitchen

7-false

8- ping pong

9- true

10- true

Explanation:

I'm pre5sure they are all right. brainliest please

Answer: I had the same quiz too I’m only doing so the other guy can get brainliest

Explanation:Kfkfkfjgjggj

Answer:

First option, third option, fourth option, and the fifth option.

Explanation:

Kinetic energy is energy an object has when it's motion, the greater the speed the greater the kinetic energy. For example, a car moving and increasing in speed is kinetic energy since the object is in motion. If the car stops and parks in a parking lot that is potential energy. Potential energy is the amount of energy an object has when it's at rest or not in motion.

So, the answer for this question is as followed first option or "energy can be stored in the position of an object." Third option or "Energy can be stored in the position of the particles that make up a substance." Fourth option or "Energy exists as movement of the particles of a substance." The last answer will be the fifth option or "Energy is greater in faster-moving particles than in slower-moving particles."

Hope this helps.

Answer:

The acceleration would be 10m/s.

Explanation:

To find this out, use the formula:

A = speed/time:

30 divided by 3 = 10m/s.

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Newton's Second Law.

We have the following data, provided in the exercise:

Mass (m) = ?

Force (F) = 13607 N

Acceleration (a) = 2.9 m/s²

To calculate the mass, we solve the following formula:

\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{F=m*a \ \ < ====Formula \ clear==== > \ \frac{F}{a}=\frac{m*\not{a}}{\not{a}} } \end{gathered}$}}\)\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{\frac{F}{a}=m \ \iff \ Address \ is \ changed \Rightarrow \ m=\frac{F}{a} } \end{gathered}$}}\)

We substitute the data in the clear formula.

\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{m=\frac{13607 \ N}{2.9 \ \frac{m}{s^{2} } } } \end{gathered}$} }\)

We break down the units of Newton = Kg * m/s².

\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{m=\frac{13607 \ Kg*\not{\frac{m}{s^{2}} } }{2.9 \not{\frac{m}{s^{2}} } } } \end{gathered}$} }\)

\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{m=4692.07 \ Kg } \end{gathered}$} }\)

Answer:

It is A. Light blue

_____________

Hope this helps!

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The total kinetic energy  of the sphere when it reaches the bottom of the incline is  44.57 J.

The total kinetic energy of the sphere = translational + rotational kinetic energy.

K.E = ¹/₂mv²

K.E(bottom) = P.E(top) = mgh

K.E = (2.35)(9.8)(1.29)

K.E = 29.71 J

K.E(rot) = ¹/₂Iω²

K.E(rot) = ¹/₂I(v²/R²)

where;

I = ¹/₂MR²

K.E(rot) = ¹/₂( ¹/₂MR²)(v²/R²)

K.E(rot) = ¹/₄Mv²

K.E(rot) = ¹/₄M(2gh)

K.E(rot) = ¹/₂Mgh

K.E(rot) = ¹/₂(29.71) = 14.855 J

Total kinetic energy = 29.71 + 14.855 = 44.57 J

Thus, the total kinetic energy  of the sphere when it reaches the bottom of the incline is  44.57 J.

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The answers are 1) The value of R2 is not relevant as it implies a downward force on the plank, 2) The reactions at C and D are 66.3 N and 90 N, respectively, and 3) The vertical force at B to lift the plank clear of D is 686.4 N. The reaction at C is zero, and the reaction at D is 61.4 kg.

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Answer:

The laws of reflection govern how incident light rays are reflected on reflecting surfaces such as mirrors, smooth metal surfaces, and clear water. The laws of reflection are as follows: The incident ray reflected ray, and normal to the mirror’s surface are all in the same plane. The incidence angle equals the reflection angle.

Explanation:

Answer:

Momentum is Mass x Velocity.

Its pretty obvious that the 80kg student Moving at 4ms-¹ has more momentum.

80x4 = 320kgms-1

0.001x250= 0.25kgms-¹

The Second student also Has More Inertia. Inertia is the resistance to motion offered by a Body. An Object with greater mass has more tendency to resist Motion .

So

The 80Kg student wins all.

Answer:

i think it is 80 kg

Explanation:

Answer: A 1:1

Explanation:

They both have a magnitude of 1.6 x 10^-19 C.

The ratio of the magnitude of the charge of a proton compared to the magnitude of the charge on an electron is 1:1 option (A) is correct.

It is a basic unit of matter everything is made from the atom. It consists of three small particles in it named electron, proton, and neutron. The electron has a negative charge, a proton has a positive charge, and a neutron has no charge.

We know the charge on the proton:

\(\rm Q_p = 1.6 x 10^{-19} \ C\)

And charge on the electron:

\(\rm Q_e = -1.6 x 10^{-19} \ C\)

The absolute value of charge on the electron:

\(\rm |Q_e| = 1.6 x 10^{-19} \ C\)

\(\rm \dfrac{\rm Q_p} {\rm |Q_e| }= \dfrac{1.6 x 10^{-19}}{ 1.6 x 10^{-19}}\)

= 1:1

Thus, the ratio of the magnitude of the charge of a proton compared to the magnitude of the charge on an electron is 1:1 option (A) is correct.

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Answer:

A pendulum works by converting energy back and forth, a bit like a rollercoaster ride. When the bob is highest (furthest from the ground), it has maximum stored energy (potential energy). ... So as the bob swings (oscillates) back and forth, it repeatedly switches its energy back and forth between potential and kinetic.

The correct response for the number of significant digits in the following numbers, from most to least, is d>c>b=a.

The number of digits in a particular value or measurement required to determine the accuracy and precision of measurement are known as significant figures (or significant digits).They are crucial for technical or scientific measurements.Significant denotes significance. In the supplied number, they make reference to the trustworthy digits that are adequate to transmit precise information. They also aid in the rounding off of measurement readings and calculating results.The quantity of digits necessary to assess the accuracy and precision of a measurement, such as length, mass, or volume, is known as significant figures (or significant digits).

Complete question: Rank in order, from the most to the least, the number of significant figures in the following numbers. For example, ifb has more than c, c has the same number as a and a has more than d you would give your answer as b>c=a»d a) 8200 b) 00052 c) 0430 d )4321 x 10" Completed O Type here to search

a)d>c>b=a    b)a=d>c>b     c)d>c>a>b    d)b=d>c>a     e)a=b=d>c

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Answer:

The water cycle outlines the continuous water movement in liquid, solid and gaseous state between locations on the Earth's surface.

The glass jar represents the lake while the atmosphere is represented by the space above the water, and the sky is represented by the (clear) plastic wrap

Arrangement description and Processes;

The processes of the water cycle includes;

Evaporation;

Condensation

Precipitation

Sublimation

Runoff

Infiltration

The arrangement of the materials is as follows;

Place the glass jar (the lake) containing water and the lamp (the Sun) side by side, such that the lamp light shines on the water surface

Cover the glass jar by wrapping the plastic wrap (the sky) around it to prevent the escape of water vapor when the water is hot.

Switch on the lamp so that it heats the water by radiation heat transfer

Observed processes;

The processes demonstrated by the above experiment includes;

1) Evaporation: As the water in the glass jar becomes warmer, the level of the water in the jar can be observed to decrease slightly due to evaporation

2) Condensation: Fog formation, Clouds

When hotter, the water surface as seen through the clear plastic wrap becomes less clearer due to evaporation, and condensation of the vapor while floating above the water surface, similar to the clouds seen in the sky.

3. Precipitation: Rain;

The clear plastic wrap covering the top of the glass jar, prevents the movement of the vapor further away, such that the tiny condensed vapor gather together, to form big droplets under the plastic wrap that falls back into the jar, which is similar to the process of rainfall

The above processes are repeated as more water evaporates from the jar condenses on the plastic wrap and falls back into the jar, showing the process by which water is recycled from the lake into the atmosphere and back to the lake.

Explanation:

We have that the time in seconds, minutes, and hours is

\(t=1.083*10^{-4}s\)

\(T_{min}=1.805*10^{-6}min\)

\(T_{hours}=3.0083*10^{-8}hours\)

From the Question we are told that

Velocity \(v=13.0m/s\)

Distance \(d=120 km\)

Generally the equation for the Time  is mathematically given as

\(t=\frac{13}{120*10^3}\\\\t=1.083*10^{-4}s\)

Therefore

\(T_{min}=1.083*10^{-4}s/60\)

\(T_{min}=1.805*10^{-6}min\)

And

\(T_{hours}=T_{min}/60\)

\(T_{hours}=3.0083*10^{-8}hours\)

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Answer:

Diameter of Newton’s 5th ring = 0.30 cm

Diameter of Newton’s 15th ring = 0.62 cm

Diameter of Newton’s 25th ring = ?

From Newton’s rings experiment we infer that

D2n+m − D2n = 4λmR

For the 5th and 15th rings we have

D215 − D25 = 4λ * 10 * R _______ (1) (m = 10)

For 15th and 25th rings

D225 − D215 = 4λ * 10 * R _______ (2) (m = 10)

We equate the two derivatives

Equation (2) = Equation (1)

D225 − D215 = D215 − D25

D225 = 2D215 – D25

Substituting the values into the equation

D225 = 2 * 0.62 * 0.62 – 0.3 * 0.3 =0.6788 cm2

D25 = 0.8239 cm

Diameter of \(25^{th}\) Newton  Ring = 0.97 cm

Newton Rings is an experiment based on principle of  thin film interference

In Newton Rings Experiment the Diameter of  \(n^{th}\) dark ring is given by equation (1)

\(\rm D_n= 2\sqrt{n\lambda R} ......(1)\\where \; \\D_n = Diameter\; of \; n^{th} \; dark \; ring }\\n = Number \; of \; Ring\\\lambda = Wavelength \\R = Radius \; of \; Curvature \; of\; the \; lens\)

From the condition given

\(\rm D_5 = 0.3 \; cm \\D_{15} = 0.62 \; cm\\\\D_{25} = To \; be \; determined \\\)

Putting the values in equation (1) for fifth diameter we get

\(\rm D_5 = 0.3=2\sqrt{5\lambda R}.......(2) \\D_{15} = 0.62 = 2\sqrt{15\lambda R}.......(3) \\\\Equation \; (3) - Equation (2) \\\\0.32 = 2\sqrt{\lambda R} ( \sqrt{15} -\sqrt{5})\\\\2\sqrt{\lambda R } = 0.1954....(4)\\\)

So  From equation (1) and (4)

\(\rm Diameter \; of \; 25^{th} Ring =D_{25} = 2\sqrt{\lambda R } \times \sqrt{25} \\\\D_{25} = 0.1954\times 5 \\\\D_{25} = 0.97 \; cm\)

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Answer:

An alternator is a type of electric generator used in modern automobiles to charge the battery and to power the electrical system when its engine is running. Until the 1960s, automobiles used DC dynamo generators with commutators. As silicon diode rectifiers became widely available and affordable, the alternator gradually replaced the dynamo.

Explanation:

Answer:

the correct answers are a and c

Explanation:

In an electrical circuit there are two important quantities to measure, such as voltage and current.

Voltage is the potential difference between two points in a circuit

current is the number of electrons you pass through a given point per unit of time.

Now let's analyze each answer

a) true. The potential difference across an element

b) False. The potential difference is u field there is no physical entity that moves

c) True. The current is electrons in motion and these pass through the given element

d) False. There is a physical quantity that passes through the point

the correct answers are a and c

Answer:The powder of Kool Aid crystals are the solute. The water is the solvent and the delicious Kool Aid is the solution.... .-.

Explanation:

Answer: it would take 4 seconds

Explanation:

Answer:

The hot coffee has a higher temperature, but not a greater internal energy. Although the iceberg has less internal energy per mass, its enormously greater mass gives it a greater total energy than that in the small cup of coffee.

Explanation:

Answer:

The hot coffee has a higher temperature, but not a greater internal energy. Although the iceberg has less internal energy per mass, its enormously greater mass gives it a greater total energy than that in the small cup of coffee.

Answer:

\( {3}^{n} \)

Explanation:

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The forces that are present in the car are:

- Motor force

- Friction and drag forces

- Car's weight

- Normal force

The Force Diagram of the car is the following:

Answer:

Approximately \(3.967\; {\rm kg\cdot m\cdot s^{-1}}\).

Explanation:

Convert velocity to the standard units (meters per second):

\(\begin{aligned}v &= 246.2 \; {\rm km \cdot h^{-1}} \\ &= 246.2 \; {\rm km \cdot h^{-1}}\times \frac{1\; {\rm h}}{3600\; {\rm s}} \times \frac{1000\; {\rm m}}{1\; {\rm km}} \\ &\approx 68.389\; {\rm m\cdot s^{-1}}\end{aligned}\).

Convert mass to standard units (kilograms):

\(\begin{aligned} m &= 58\; {\rm g} \\ &= 58\; {\rm g} \times\frac{1\; {\rm kg}}{1000\; {\rm g}}\\ &= 0.058\; {\rm kg}\end{aligned}\).

When an object of mass \(m\) travels at a velocity of \(v\), momentum of that object would be \(p = m\, v\). In standard units, the momentum of this tennis ball would be:

\(\begin{aligned}p &= m\, v \\ &\approx (0.058\; {\rm kg})\, (68.389\; {\rm m\cdot s^{-1}}) \\ &\approx 3.967\; {\rm kg \cdot m\cdot s^{-1}}\end{aligned}\).

Answer:

force

Explanation:

Answer:

Force

Explanation:

Force includes gravity and friction and applied force hence push a pulling

Answer:

VAB = 20km/hr

Explanation:

Given the following data;

Velocity of car A, VA = 60km/hr

Velocity of car B, VB = 80km/hr

To find the relative velocity of B w.r.t A, VAB;

Since the two cars are moving in the same direction, we have;

VAB = VB - VA

Substituting into the equation, we have;

VAB = 80 - 60

VAB = 20km/hr

Therefore, the relative velocity of car B with respect to car A is 20 kilometers per hour.