the two-way is normally used as an off/on switch and to control

The correct classification of each substance is as follows:

A conductor is a substance that can transmit electricity, heat, light or sound while an insulator is a substance that does not transmit heat, sound or electricity.

Conductors are usually metals while insulators are usually non-metals. Examples of conductors include;

Examples of insulators include;

Therefore, the correct classification of each substance is as follows:

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Answer:

Explanation:

E2020

The equation needed to calculate the charge flow Q = I x t

The formula can be utilised to compute current.The electric current,

,in a wire can be found using the formula

=/,

where represents an amount of charge that passes a point in the wire over some amount of time, .

Electric current is the movement of an electric charge. Amperes are the units used to measure electric current. The ampere has the unit sign A.

When studying electricity, both coulombs and amperes are frequently utilised, but it's vital to keep in mind that they measure distinct things. Charge is measured by the coulomb, while the flow of charge is measured by the ampere.

One coulomb of charge passes a spot in a wire in one ampere of current in one second.

Any amount of time can be used to gauge how much charge is transferred; just that it cannot exceed one second.

Simply dividing a charge's amount by the length of time it was measured yields current.

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Radio/TV waves has the lower energy than microwaves.

my

Answer: A

Explanation:

What does your model look like and the one it's being compared to?

Answer:

you should prolly put the model

Explanation:

In general, the statement that validation is not needed for single-use systems in a bioreactor is not accurate. Validation is an essential process in bioprocessing that ensures the reliability, consistency, and safety of the manufacturing process. Single-use systems, which are increasingly used in bioreactors, can introduce unique challenges and considerations.

Validation of single-use systems involves assessing their performance, integrity, and compatibility with the process requirements. Factors such as material integrity, sterile connections, and proper functioning of sensors and control systems should be evaluated to ensure the system's suitability for use.

While single-use systems offer advantages in terms of cost, flexibility, and minimizing cross-contamination risks, they still require validation to demonstrate their reliability and performance. It is essential to follow industry standards, regulatory guidelines, and good manufacturing practices to ensure the quality and safety of bioprocessing operations, regardless of the system being used.

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The speed v(c) of the center of mass of the system after the pod is launched is equal to v(f).

Mass of the pod, m₁ = m

Mass of the spaceship, m₂ = 6m

The conservation of momentum principle states that, within a given domain, the amount of momentum is constant such that, momentum is never created nor destroyed, but only modified by the application of forces.

So, according to the conservation of momentum, the momentum before launch and before launch must be equal. Therefore, the speed of the center of mass of the system becomes equal to the speed with which the spaceship is moving towards the right.

Therefore,

v(c) = v(f)

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Answer:

the theory of behaviorism

Explanation:

i looked it up¯\_(ツ)_/¯

Answer: 80 mph

Explanation:

Answer:

search up the kinetic energy and potential energy etc. then take them and look at the characteristica are they the same? What makes them similar? Why are they different ? How? Then add the chemical nuclear and electrical changes it creates. Now the rest! There you’ve got this! If you need support I’m here! Hope this helped!

Explanation:

The density of 8.0 cm³ sample of the same metal is 5.65g/cm³.

The density of a sample or a body is defined as, the density of a body is the amount of mass per unit volume . It is denoted by ρ. & its unit is kg/m³.

Density ρ = M/V

where, M is mass and V is volume of the body.

Solution,

Given here,

The density ρ₁ of volume V₁ & the density ρ₂ of volume V₂ of same metal therefore,

ρ₁ = 11.3 g/cm³

V₁ = 4.0 cm³

V₂  =8.0 cm³

ρ₂ =?

ρ₁ × v₁ = ρ₂ × v₂

ρ₂ = ρ₁ × v₁ /v₂

ρ₂ = (11.3 g/cm³× 4.0 cm³)/8.0 cm³

ρ₂ = 5.65  g/cm³

The density of sample of the same metal is  5.65  g/cm³

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Answer:

B: 50 N/m

Explanation:

Hopes it help.

The spring constant of the spring is 50 N/m. The correct option is B.

When the spring is compressed, it gets compressed up to its elastic limit. When load is removed from the spring, it regains its shape and obtains equilibrium position. The energy stored in this process is called as spring potential energy.

Given a spring has 100 J of EPE when it is stretched 2 m. The energy stored in the spring is given by

SPE = ½ kx²

100 = ½ k (2 m)²

k = 50 N/m

So, spring constant of the spring is 50 N/m.

Thus, the correct option is B.

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Answer:

453,870 J

Explanation:

KE = 1/2mv² = 1/2(1500 kg)(24.6 m/s)² = 453,870 J

Answer:

The pressure of the air molecules inside the pen cap increases and the volume occupied by the air decreases such that the combined volume occupied by the pen cap and the air volume reduces while the combined mass of the pen cap and the air molecules remain the same

Given that density = The mass/Volume, we have that the density varies inversely as the volume, and as the volume reduces, the density increases

Upon squeezing, therefore, as the new combined density of the pen cap and the air molecules rises to more than the density of the water in the bottle, then, the pen cap air molecule is relatively more denser than the water, which will result in the pen cap sinking to the bottom of the bottle

Explanation:

Answer:

See below

Explanation:

Each of the given numbers have 4 significant digits.....so the answer can only have a maximum of 4 S.D.

7-273-12.37 = - 5.097

The correct answer is B. The image could be real or virtual, depending on how far the object is past the focal point.

When an object is placed outside the focal point of a diverging lens, the resulting image is always virtual and upright (erect). However, the location of the image (whether it is real or virtual) depends on the distance of the object from the lens. If the object is placed closer to the lens than the focal point, the image will be virtual, upright, and on the same side of the lens as the object. It will be magnified and will appear larger than the object. If the object is placed farther from the lens than the focal point, the image will be virtual, upright, and on the opposite side of the lens from the object. It will be reduced in size and will appear smaller than the object. Therefore, the statement "The image could be real or virtual, depending on how far the object is past the focal point" accurately describes the behavior of the image formed by a diverging lens when the object is located outside the focal point.

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To calculate the efficiency of a machine, divide the work output by the work input and multiply the result by 100%.

Correct question:

The work output of a machine is 80 Joules, and its work input is 120 Joules. What is the efficiency of the machine?

Work output = 80 Joules

Work input = 120 Joules.

Efficiency = Working output/Work input *100

Efficiency = 80/120 *100

Efficiency = 0.67 *100

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Answer:

The statements are not given, so I will answer in a general way.

We know that when one object is moving with a velocity V, and it wants to come to stop, it needs to accelerate in the opposite direction to the initial velocity (Or decelerate).

As larger this acceleration is, the faster the object will come to a full stop.

Now we have a car (with a mass m) and a truck (with a mass M) are moving with a velocity V.

We can assume that the mass of the truck is larger than the mass of the car, then:

M > m.

Now also remember Newton's second law:

F = m*a

Force equals mass times acceleration.

And we know that both vehicles stop with the same stopping force.

Then the acceleration (deceleration actually) that experiences the car is:

a = F/m

While the acceleration that experiences the truck is:

a' = F/M

Because M is larger than m, we will have:

a' < a

Then the deceleration of the truck is smaller than the one of the car, which means that the car will come to a full stop faster than the truck (or the truck needs more time to stop)

Answer:

a. bernoulli's principle

b. archimedes' principle

c. pascal's principle

Explanation:

Answer:

Bernoulli - a

Archimedes - b

Pascal - c

a) The motion of the object between 15 s to 30 s is increasing velocity, to a constant velocity and finally a decreasing velocity.

(b) The average velocity of the object between 0 and 15 seconds is 0.167 m/s.

(c) The position of the object at 5.0 seconds is 0.5 m.

(d) Between 30 and 40 seconds, the velocity of the object is decreasing and the object is decelerating.

(a) The motion of the object between 15 s to 30 s can be described as increasing velocity, to a constant velocity and finally a decreasing velocity.

(b) The average velocity of the object between 0 and 15 seconds is calculated as;

average velocity = total displacement / total time

average velocity = (2.5 m - 0 m ) / ( 15 s - 0 s ) = 0.167 m/s

(c) The position of the object at 5.0 seconds is calculated as follows;

at 5.0 seconds, the position of the object is traced from the graph as 0.5 m.

(d) The motion of the object between 30 and 40 seconds is calculated as;

velocity = ( 0 m - 4 m ) / ( 40 s - 30 s ) = - 0.4 m/s

Between 30 and 40 seconds, the velocity of the object is decreasing and the object is decelerating.

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ANSWER:

3) 1234 m

STEP-BY-STEP EXPLANATION:

Precision refers to how close two measurements are to one another. The highest number with a significant digit is the most precise, the number that has the most significant figures. Therefore, the less accurate is the opposite.

Which means that in this case, the least precise number is 1234 m.

The f-number of the professional video camera lens is f/2.83.

The f-number of a lens is calculated by dividing the focal length by the diameter of the lens aperture. This ratio is a measure of how much light can enter the camera and is expressed as f/number.

In the given scenario, the professional video camera lens has a focal length of 17 cm and a lens diameter of 6.0 cm.
To calculate the f-number, we simply divide the focal length by the lens diameter:
f-number = focal length / lens diameter
f-number = 17 cm / 6.0 cm
f-number = 2.83

This means that the lens can allow a significant amount of light to enter the camera, making it ideal for low-light situations.
In addition to the f-number, there are other factors that affect the quality of the video captured by a camera lens. These include the aperture size, the depth of field, and the lens construction. It is important to consider all of these factors when choosing a camera lens to ensure that the desired results are achieved.

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Temperature is increased the pressure also increases due to fast movement of molecules because of more energy.

The temperature of the gas is directly proportional to the pressure. Faster moving particles will collide with the walls of the container that put force on the wall which leads to increase in pressure.

So we can conclude that temperature is increased the pressure also increases due to fast movement of molecules because of more energy.

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The primary difference between speed and velocity is that speed is a scalar quantity that describes how fast an object is moving, while velocity is a vector quantity that describes how fast an object is moving in a particular direction

Speed and velocity are two critical concepts in physics. They are used to describe the motion of an object. While both describe how fast an object is moving, there are some fundamental differences between the two. Let's explore these differences.

What is speed?

Speed is a scalar quantity that describes how quickly an object moves. It is measured in meters per second (m/s) or kilometers per hour (km/h).

Speed can be calculated using the following formula:

speed = distance ÷ time

For example,

if an object covers a distance of 150 meters in 10 seconds, its speed can be calculated as follows:

Speed = distance ÷ time= 150 meters ÷ 10 seconds= 15 meters per second (m/s)

What is velocity?

Velocity, on the other hand, is a vector quantity that describes how fast an object is moving in a particular direction. It is measured in meters per second (m/s) or kilometers per hour (km/h).

Velocity can be calculated using the following formula:

velocity = displacement ÷ time

For example, if an object travels a displacement of 150 meters in 10 seconds in a specific direction, its velocity can be calculated as follows:

Velocity = displacement ÷ time= 150 meters ÷ 10 seconds= 15 meters per second (m/s) in a specific direction.

In conclusion, the primary difference between speed and velocity is that speed is a scalar quantity that describes how fast an object is moving, while velocity is a vector quantity that describes how fast an object is moving in a particular direction.

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Answer:

FALSE

Explanation:

To answer this question we must clarify that for a given approach to exist there must be a transition between two atomic levels of the material.

For the emission, the transition between two determined states must also occur, therefore the radiation emitted is equal to that absorbed.

Consequently the statement is False