Consider the standard biasing circuit for npn transistor using two 6V sources. Use only one rule of thumb guideline and find Rg if Ico= 4mA given that Rac=2 k and Rc is 8002 (note: RE #RC).

Answer:

Higher mass or higher speed

Explanation:

Higher mass will require more force

F= ma       if m goes up  F   goes up   to stop in the same distance

The velocity at the end of 4.5 seconds is 32.4 m/s.

To find the velocity of a car that accelerates at a rate of 7.2 m/s² for 4.5 seconds, starting from rest, we can use the formula:

v = u + at

where v is the final velocity, u is the initial velocity (0 m/s since the car is starting from rest), a is the acceleration (7.2 m/s²), and t is the time (4.5 seconds).

Step 1: Identify the known values.
u = 0 m/s (starting from rest)
a = 7.2 m/s² (acceleration)
t = 4.5 seconds (time)

Step 2: Plug the known values into the formula.
v = 0 m/s + (7.2 m/s² * 4.5 seconds)

Step 3: Perform the calculation.
v = 0 m/s + (32.4 m/s)

Step 4: Simplify the result.
v = 32.4 m/s

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Answer:

ferromagnetism

Explanation:

Answer:

d

Explanation:

I really don't know how to explain

The magnitude of the resultant force on the balloon is 374.13 N.

The given forces from the image;

The net vertical force on the balloon is calculated as follows;

\(F_y = 514 \ N \ \ - \ \ 267 \ N\\\\F_y = 247 \ N\)

The net horizontal force on the balloon is calculated as follows;

\(F_x = 678 \ N \ - \ 397 \ N\\\\F_x = 281 \ N\)

The magnitude of the resultant force on the balloon is calculated as follows;

\(F = \sqrt{F_y^2 + F_x^2} \\\\F = \sqrt{(247)^2 + (281)^2} \\\\F= 374.13 \ N\)

Thus, the magnitude of the resultant force on the balloon is 374.13 N.

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Answer:

B because thats the answer

Answer:

A drug is a substance, which alters The functioning of mind and body of a person. Drug can cure disease when taken in right quantities under the supervision of a physician.

Answer:

Let us consider a hydraulic machine of 2 vessels of CSA 'A1' and 'A2' respectively. These vessels are fitted with watertight frictionless pistons. The CSA of the small vessel is 'A1' and large vessel is 'A2'. So, 'A1' < 'A2'.

When a force 'F1' is applied on the small piston of area 'A1', a pressure 'P1' is exerted on the small piston. According to Pascal's law:

Pressure in small piston = Pressure in the large piston

i. e. P1 = P2

or,    F1 / A1 = F2 / A2

or,    F1.A2 = F2.A1

Since A2 > A1,    F1 > F2

Hence, a hydraulic machine is a force multiplier.

One more reason : -

Because it applies Pascal's formula:

F = P ×S

      Here,

    F = Force

     P = Press

     S = Surface Area

The force constant of the spring is 200.696 N/m & The height the object achieves when the spring releases its energy is 2.5087 m

The spring constant is the force needed to stretch or compress a spring, divided by the compressive or expansive distance. It's used to determine stability or instability in the spring, and therefore the system it's intended for. we know,

F = kx

Therefore,

k = F/x

We also know that the force being exerted on the spring is equal to the mass of the object. Hence, F = mg = 5.13 * 9.8 N = 50.174 N and we know compression due to the mass is 0.25m. Therefore,

K = 50.174/0.25 N/m

K = 200.696 N/m

Therefore, The Spring Constant is 200.696 N/m

On release, the spring potential energy gets converted to kinetic energy. Hence, on release, the height attained by the object is given by:

h = \(1/2 kx^{2}\)

We know that k=200.696 N/m and x=0.25 m. Therefore the height is:

h = \(1/2 (200.696 N/m)(0.25 m)^{2}\)

h = 2.5087 m

Therefore, the force constant of the spring is 200.696 N/m & The height the object achieves when the spring releases its energy is 2.5087 m

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When the velocity of an object changes, it is acted upon by a force

The role of the critical theorist in the emancipation process is similar to the role of a (B) freedom fighter.

Critical theorists aim to challenge and critique existing power structures and social norms to promote social justice and liberation. They analyze and question societal systems of oppression and seek to empower marginalized groups by exposing injustices and advocating for change.

Similar to freedom fighters who actively resist and fight against oppressive systems, critical theorists engage in intellectual activism, advocating for the liberation and empowerment of individuals and communities.

While other options like mediator, detective, and psychoanalyst may play important roles in various contexts, they do not capture the active and transformative nature of critical theory in the pursuit of emancipation and social transformation.

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Answer:

Nicolaus Copernicus

Explanation:

In 1543, Nicolaus Copernicus detailed his radical theory of the Universe in which the Earth, along with the other planets, rotated around the Sun. His theory took more than a century to become widely accepted.

Answer:

2.04m

Explanation:

PE=mgh

h= PE/mg

h= 40/2(9.82)

h=40/19.64

h=2.04

Answer:

\(20m\)

Explanation:

Formula to find the potential energy is,

Potential Energy = mgh

Here,

m = mass

g = gravitational field

h = height

According to the question, we have to find the height.

Usually, we get g is \(10ms^{-2}\)

Let us solve for the answer now.

\(P.E. =mgh\\40J =2kg*10ms^{-2} *h\\40 = 20h\\\frac{40}{20}= \frac{20h}{20} \\20m=h\)

Hope this helps you.

Let me know if you have any other questions :-)

The engine of an aircraft propeller delivers an amount of power 171 hp to the propeller at a rotational velocity of 2410 rev/min. This is a false statement.

Power can be defined as the amount of work completed in a given amount of time. Watt (W), which is derived from joules per second (J/s), is the SI unit of power. Horsepower (hp), which is roughly equivalent to 745.7 watts, is a unit of measurement sometimes used to describe the power of motor vehicles and other devices.

With out knowing mass of the propeller, it can't be concluded about its  rotational velocity - no mater how much power is applied on it.

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If placed in groundwater, a 0.60 kg gold crown would rise by a buoyant force of almost 11.58 N. You can ascertain the same using the formula provided:

Buoyant force = density of fluid x Volume of object x gravitational acceleration

= 1000 kg/m3 x 0.60 kg/m3 x 9.81 m/s2

= 11.58 N

When an item is submerged in a fluid, buoyant force, a kind of uplifting force, is applied to that item. An entity's buoyant force is proportional to the amount of both the fluid it has evacuated.

Step 1: Calculate the volume of the crown

Mass divvied up by concentration is just the formula for calculating an item's volume. The golden crown inside this instance weighs 19.3 x 103 kg/m3 in terms of density.

Volume = 0.60 kg/19.3 x 103 kg/m3

Volume = 0.0031 m3

Step 2: Determine how much water has been displaced by mass.

The crown's volume times the water is probably density gives the amount of water that is evacuated. Freshwater has a 1,000 kg/m3 density.

Mass of water moved is 0.0031 m3 times 1,000 kg/m3.Water displacement weight is equal to 3.1 kg

Step 3: Determine the buoyant force.

The buoyant force that an item experiences is proportional to the mass of the fluid which that item has displaced. The water that was removed weighs 3.1 kg in particular instance.

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Carbon dioxide is removed from Earth's atmosphere by plant photosynthesis. The correct option is C.

Plant photosynthesis is the process by which plants use light energy to convert carbon dioxide and water into glucose and oxygen. This process is essential for the production of food and oxygen in the atmosphere.

Animal respiration (option A) releases carbon dioxide into the atmosphere, contributing to an increase in atmospheric carbon dioxide levels.

Decaying organisms (option B) also release carbon dioxide into the atmosphere as part of the natural carbon cycle, but they do not remove carbon dioxide from the atmosphere.

Burning fossil fuels (option D) releases large amounts of carbon dioxide into the atmosphere, contributing to the increase in atmospheric carbon dioxide levels.

Plant photosynthesis (option C), on the other hand, removes carbon dioxide from the atmosphere as plants use carbon dioxide during the process of photosynthesis to produce carbohydrates and release oxygen.

Therefore, Plant photosynthesis is the only option that correctly identifies a process that removes carbon dioxide from the atmosphere.

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Answer:

B

Explanation:

1 minute = 60 seconds

2 minutes = 2 * 60 = 120 seconds.

d = r * t

t = 120 seconds

d = 500 meters

r = d/t

r = 500 / 120 = 4.167 m/s

The closest answer is B

Answer:

the answer of question no5 is b

The electric force exerted on one sphere by the other is equal to  9.27  × 10⁻⁷ N.

According to Coulomb’s law, the force of attraction between two charged bodies is the product of their charges and is inversely proportional to the square of the distance by which they are separated. This force acts along the line joining the two-point charges.

The magnitude of the electric force is given by:

\(F = k\frac{q_1q_2}{r^2}\)

where k is constant proportionality and has a value of 8.99 × 10⁹ N.m²/C².

Given the charge on one sphere, q₁ = + 6 ×10⁻⁹ C

The charge on the other sphere, q₂ = -11 × 10⁻⁹C

The distance between these two charges, r = 0.80 m

The magnitude of electric force between the spheres will be:

\(F = 8.99 \times 10 ^9(\frac{6\times 10^{-9}\times 11\times 10^{-9}}{(0.80)^2} )\)

F = 927.09  × 10⁻⁹ N

F = 9.27  × 10⁻⁷ N

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Explanation:

divide the distance by the time it takes to travel that same distance, then add your direction to it.

Or change in displacement divided by change in time.

Answer:

I don't know what you mean about which changes occurred in this process but if its why the dough starts rising then its caused by the carbon dioxide in baking soda and yeast which is a fungus

Answer:

When baking,flour is mixed with water,the other ingredients and yeast to form a paste called a dough.what happens is that the zymase enzyme from the yeast acts on the sugars to form carbon dioxide and alcohol.the carbon dioxide begins to form bubbles in the dough causing it to rise..

I hope this helps

Answer:  D.) e-mail is saved on the server that transfers it

Explanation:

D. E-mail is saved on the server that transfers it is the right answer

Email (Email) is a computerized application for exchanging messages between users. The global email network enables rapid exchange of email messages. Email is an electronic version of a letter, but it has advantages in terms of topicality and flexibility.

All emails in all inboxes around the world are stored on the server. An incredible amount of data requires a huge server farm. This is a huge center with millions of computers that store and send information.

A mail server (or email server) is a computer system that sends and receives emails. Web and mail servers are often integrated on a single machine.

E-mail is usually a poor choice for the distribution of sensitive electronic files because E-mail is saved on the server that transfers it

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Answer:

y

Explanation:

I took the test

Answer:

its c...

Explanation:

letter y

The mass will oscillate with a period of . 84.4 min. Option A

The period of oscillation of a body dropped into a frictionless cylindrical channel along a diameter of the Earth can be calculated using the formula:

\(T = 2\pi \sqrt{(r^3/(G*M)} )\)

where T is the period of oscillation, r is the distance from the center of the Earth to the center of the channel, G is the gravitational constant, and M is the mass within a sphere of radius r.

In this case, the radius of the Earth is approximately 6,371 km. Since the channel is drilled along a diameter of the Earth, the distance from the center of the Earth to the center of the channel is half the radius of the Earth, or 3,185.5 km.

The mass within a sphere of radius r can be calculated using the formula:

\(M = (4/3)\pi r^3\rho\)

where ρ is the density of the Earth.

Plugging in the values, we get:

M =\((4/3)\pi (3,185.5 km)^3(5.52\times 10^3 kg/m^3)\)

= \(7.98\times 10^{22\) kg

Substituting the values into the formula for the period of oscillation, we get:

\(T = 2\pi \sqrt{((3,185.5 km)^3/(6.67\times 10^-11 N*m^2/kg^2)(7.98\times 10^{22 kg))}\)

= 84.4 minutes

Therefore, the answer is (a) 84.4 min.

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Answer:

Scalar, a physical quantity that is completely described by its magnitude; examples of scalars are volume, density, speed, energy, mass, and time. Other quantities, such as force and velocity, have both magnitude and direction and are called vectors.

Explanation:

Scalar quantities give a magnitude, while vector quantities give a magnitude and a direction. The answer will be a measurement that does not change, regardless of the direction of action. Displacement is a measure of length in a given direction; distance is the scalar version of displacement. ... Mass is a scalar quantity.

examples of scalar quantities are mass, speed, distance, time, energy, density, volume, temperature, distance, work and so on

Answer:

Scalar, a physical quantity that is completely described by its magnitude; examples of scalars are volume, density, speed, energy, mass, and time. Other quantities, such as force and velocity, have both magnitude and direction and are called vectors.

The risk factors which are associated with dating a gang member include severe issues such as drug addiction and disorders like depression and anxiety. This could be avoided by maintaining a healthy relationship with the parents and partners.

The risk factors which are associated with dating a gang member include many problems and disorders. Problems could be major such as drug addiction, trafficking, etc. The constant problems could lead to depression and anxiety in an individual which could be life-threatening if remains untreated for a long time.

The ways in which these risk factors could be minimized and Arianna could be saved from dating a gang member include cumulative protection across domains, cumulative protection in the family domain, educational aspirations and self-esteem in the individual domain, and parental supervision and parent/partner status in the family domain.

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Two infinite sheets of current flow parallel to the y-z plane. The left-hand sheet, which intersects the x-axis at x = 0, consists of an infinite array of wires parallel to the z-axis with a density of n = 910 wires/m and current per wire of IL = 0.14 A in the +zdirection.

The right-hand sheet, which intersects the x-axis at x = a = 12 cm, is identical to the left-hand sheet, except that it has a current per wire of IR = 0.14 A in the -z-direction.

(a) Calculate the y-components of the net magnetic field in the following places:

x1 = -15 cm, x2 =6 cm, and x3 = 24 cm. (The x- and z-components of the B-field are zero.)

B(x1)y = T

B(x2)y = T

B(x3)y = T

Please check the attached file for a detailed answer.

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Answer:

t

Explanation:

Answer:

False

Explanation: