assume that an intercontinental ballistic missile goes from rest to a suborbital speed of 6.50 km/s in 60.0 s (the actual speed and time are classified). what is its average acceleration in m/s2 ?

Answer:

5.24m/s

Explanation:

Given parameters:

Initial velocity  = 4.7m/s

Acceleration  = 5.4m/s²

Time  = 0.1s

Unknown:

Final velocity of the particle = ?

Solution:

Acceleration is the rate of change of velocity with time.

   Acceleration  = \(\frac{v - u}{t}\)  

v is the final velocity

u is the initial velocity

t is the time taken

  Now find v;

           5.4  = \(\frac{v - 4.7}{0.1}\)  

             0.54  = v  - 4.7

          v  = 5.24m/s

The acceleration of the object is 5 m/s². The result is obtained by using the Newton's second law.

The Newton's second law states that "The acceleration is directly proportional to the net force acting on an object and inversely proportional to the object's mass." It can be expressed as

a = ∑F/m

Where

An object with a mass of 12 kg is acted upon by a force of 60 N.

Find the acceleration of the object!

Using the Newton's second law formula, we get acceleration.

a = ∑F/m

a = 60/12

a = 5 m/s²

Hence, the acceleration of the object is 5 m/s².

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Answer:

C. Style

Explanation:

Because if your letters are slanted, it's not mechanical, is it? Neither is it emotional, since that's just not right. As for physical, how is your letters being slanted physical? Therefore, the best answer would be C. Style.

The initial configuration consists of two identical conducting spheres separated by a distance of 50.0 cm. The spheres experience an attractive electrostatic force of 0.108 N is \(1.33*10^{-8} C\)

After connecting the spheres with a conducting wire and then removing it, they experience a repulsive electrostatic force of 0.0360 N. The total charge of the system is positive. The question seeks to determine the negative charge on one sphere and the positive charge on the other.

To solve for the charges on the spheres, we can use the concept of electrostatic force and Coulomb's law. Initially, the spheres experience an attractive force, indicating opposite charges. Let's assume one sphere has a negative charge and the other has a positive charge.

Using Coulomb's law, we can calculate the magnitude of the initial force: \(F = k * (q1 * q2) / r^2\), where F is the force, k is the electrostatic constant, q1 and q2 are the charges, and r is the distance between the spheres. Since the spheres are identical, their charges can be represented as q and -q, respectively.

\(0.0360 N = (9 * 10^9 N*m^2/C^2) * (q1 * q2) / (0.50 m)^2q1q2 = (0.0360 N * (0.50 m)^2) / (9 * 10^9 Nm^2/C^2) = 4.0 * 10^8 C^2\)

\(1.33*10^{-8} C\)

By substituting the given values into the equation and solving for q, we can determine the negative charge on one sphere. Similarly, after connecting the spheres with a wire and removing it, they experience a repulsive force. This indicates that the charges have become the same on both spheres. Therefore, the positive charge on the other sphere can be determined as +q.

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Answer:

5.33ms-¹

Explanation:

that is the procedure above

Answer:

KE=800,000

Explanation:

The formula for kinetic energy is KE=1/2mv^2 or Kinetic Energy= 0.5*mass*velocity^2

so 1000 is the mass and 40 is the velocity

KE=0.5*1000*40^2

KE=0.5*1,000*1,600

KE=800,000 Joules

The total work done by the workman was 432 joules

The workman lifted the lumber a vertical distance of 9.6 m, which means he did work against gravity. The amount of work done is equal to the force (weight of the lumber) multiplied by the distance it was lifted:

Work = force x distance

Work = 45 N x 9.6 m

Work = 432 joules

In addition to lifting the lumber, the workman also moved it horizontally a distance of 22 m. However, since the lumber was not lifted or lowered during this movement, no work was done against gravity.

Therefore, this distance does not affect the amount of work done by the workman.

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The Wi-Fi radio with a transmission bandwidth of 22MHz can accommodate 4 non-overlapping channels within the 2.4G Hz ISM radio band.

Channels 1, 6, and 11 are the possible channel settings you could use for your Wi-Fi network in the ISM band if your neighbour has set up his/her Wi-Fi on Channel 4 centred at 2.427 GHz to avoid interference.

The Wi-Fi radio (IEEE802.11) with a transmission bandwidth of 22MHz can accommodate non-overlapping channels within the 2.4GHz ISM radio band.

The range of the ISM band frequency is 2.4-2.4835 G Hz. In order to find the number of non-overlapping channels within the 2.4GHz ISM radio band, we will first find the number of available channels. We use the formula given below:

Number of channels = (Frequency Range)/(Bandwidth)

Number of channels = (2.4835-2.4)/22 MHz 3.8 4

Hence, there are 4 non-overlapping channels available in the 2.4GHz ISM radio band.

The Wi-Fi radio (IEEE802.11) has 13 overlapping channel settings in the 2.4 GHz ISM band.

The channel settings range from channel 1 centred at 2.412 GHz to channel 13 centred at 2.472 GHz. The adjacent channel centre frequencies are 5MHz apart. A close neighbour has set up his/her Wi-Fi on Channel 4 centred at 2.427GHz.

To avoid interference, possible channel settings you could use for your Wi-Fi network in the ISM band are as follows:

Channels 1, 6, and 11 have no overlapping with Channel 4 because they are at a separation of at least 25MHz away from Channel 4.

Therefore, you should choose any of these channels for your Wi-Fi network.

The Wi-Fi radio with a transmission bandwidth of 22MHz can accommodate 4 non-overlapping channels within the 2.4G Hz ISM radio band. Channels 1, 6, and 11 are the possible channel settings you could use for your Wi-Fi network in the ISM band if your neighbour has set up his/her Wi-Fi on Channel 4 centred at 2.427 GHz to avoid interference.

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Answer:

p=g×g×h

Explanation:

pressure of liquid = density of liquid ×gravity×depth of liquid

Answer:

W = M g = 150 kg * 9.81 m/s^2 = 1470 N

You were only given 3 significant figures in the question.

The weight of the box is 1471.5 N.

In science and engineering, an object's weight is defined as the force of gravity acting on the thing. Weight is sometimes described as a vector quantity in common textbooks, denoting the gravitational force acting on the item.

Given parameters:

Mass of the box, m = 150 kg.

Acceleration due to gravity, g = 9.8 m/s².

Hence, weight of the box is, W = mg = 150 kg × 9.81 m/s² =1471.5 N.

SO, weight of the  box with a mass of 150 kg on Earth is 1471.5 N.

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Answer with Explanation:

Spain is known to have hot summers, thus, it is very easy for water to evaporate once exposed to direct heat source (such as the sun).

A fountain is being used in order to keep the garden's surrounding air temperature low by allowing the evaporation of water. One factor that speeds up the evaporation of water is the surface area. The water coming out of a fountain is in small quantities; however, it meets up with hot air in a large surface area. This allows faster evaporation, leading to an even greater cooling effect because heat is being transported immediately from the liquid state to the gaseous state. This is the reason why people often meet up in places where there's a fountain. It is not only aesthetically appealing but also provides comfort from the heat.

The current through resistor R3 is 0.33 A. A circuit with three resistors connected in series is shown below: Circuit diagram of three resistors connected in series As per the given information, R2 has a resistance of 200 ohms and a voltage drop of 30 volts.

Therefore, the voltage drop across R1 is V1 = V - V2 - V3V = voltage supplied to the circuit = voltage drop across R1 + voltage drop across R2 + voltage drop across R3R1 = Resistance of resistor R1.R2 = Resistance of resistor R2 = 200 Ω.V3 = Voltage drop across resistor R3.I3 = Current through resistor R3.To calculate the current in resistor R3, let's follow the steps given below.Step 1: Find the voltage drop across R1.Using Ohm's Law, the voltage drop across R2 is V2 = IR2Substitute the values of V2 and R2 to get the value of current I.I = V2/R2I = 30/200I = 0.15 A

Using Kirchhoff's voltage law, the voltage drop across R1 isV1 = V - V2 - V3V = V1 + V2 + V3Substitute the values of V, V2, and V3 to get the value of V1.V1 = V - V2 - V3V1 = 100 - 30 - V1V1 = 70 VStep 2: Find the current through R3.Using Ohm's Law, the voltage drop across R3 is V3 = I3R3.Substitute the values of V3 and R3 to get the value of current I3.I3 = V3/R3I3 = (V - V1 - V2)/R3I3 = (100 - 70 - 30)/R3I3 = 0.33 A

Therefore, the current through resistor R3 is 0.33 A.

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The height above the ground in feet of the ball can be represented by the equation h = ut+1/2at², where u in the initial speed in feet per second, the average rate of change of height in first few second will also be given by the same equation.

The ball thrown upward with an initial speed of u feet per second will attain a height of h feet.

Now, we know, from the equation of motion,

S = ut + 1/2at²

This can be rewritten for the height purpose,

h = ut + 1/2at²

Where,

h is the height in feet,

t is time in seconds,

u is the initial speed in feet per seconds,

a is the acceleration of the ball.

The average rate of change of height will also be given by the same equation. We just have to know that for how much amount of time we need to find the change rate.

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The orbital quantum number, denoted as "l", specifies the shape of the electron's orbital. It can have integral values ranging from 0 to n-1, where n is the principal quantum number. In this case, l1 is given as 3.

To find the number of possible values of ml, which represents the magnetic quantum number, we need to consider the formula 2l + 1. Here, "l" represents the value of l1. Plugging in the given value, we get 2(3) + 1 = 7. Therefore, there are 7 possible values of ml for an electron with orbital quantum number l1 = 3.

It's important to note that ml can have values ranging from -l to +l, inclusive. In this case, since l1 = 3, the possible values of ml are -3, -2, -1, 0, 1, 2, and 3.

For an electron with orbital quantum number l1 = 3, there are 7 possible values of ml, namely -3, -2, -1, 0, 1, 2, and 3.

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The force constant of the spring is 2,717 × \(10^{3}\) N/m

To solve this problem, we should understand Hooke's Law. According to this law, the displacement or magnitude of a deformation is directly proportional to the deforming force or load for relatively modest deformations of an item. Mathematically, Hooke's Law could be stated in a form of equation as written below.

\(F = k\) Δ\(x\)

where \(F\) is the force, \(k\) is the spring constant, and Δ\(x\) is the displacement.

In this question, we have already known the value of force (as a result of multiplication between weight of the load and gravity value) and displacement.

\(F = 178 N\)

Δ\(x\)\(= 0.0655 m\)

By using the formula of Hooke's Law, we could calculate the value of spring constant.

\(F = k\) Δ\(x\)

\(k=F/\)Δ\(x\)

\(k = 178 N / 0.0655\)

\(k = 2717 N/m\)

\(k = 2,717\) × \(10^{3} N/m\)

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The stone may have a diameter of  \(5 cm\)  , but it also may be smaller and denser, or larger and less dense. It is impossible to correctly estimate the size of the stone without more details.

When an object is dropped into a liquid, it moves the same volume of liquid with it. The Archimedes principle is this.

In this instance, the addition of the stone caused the water in the cylinder to rise from \(30\) cm to \(35\) cm in volume. The volume of the stone is therefore equal to the \(5\) cm \(3\) volume difference between the two measurements.

However, this information alone cannot be used to estimate the stone's size in terms of its actual measurements.

Therefore, The stone may have a diameter of \(5 cm\) , but it also may be smaller and denser, or larger and less dense. It is impossible to correctly estimate the size of the stone without more details.

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Answer:

A -- Correct (what you have on the paper)

B -- (Sphere A - negative 6 ) (Sphere B - negative 6) (Sphere C - positive 9)

(Total - negative 3)

Explanation:

Hope this helps! Please let me know if you need more help, or if you think my answer is incorrect. Brainliest would be MUCH appreciated. Have a wonderful day!

Answer:

Explanation:

a. Total charge = sum of charges of A, B and C

= -4 + -8 + 9

= -3.0C

b. After touching each other, the charges on A and B will equalized. When separated, they have the same charge = (-4 + -8) / 2 = -6.

Charge on C and the total charge will not change.

A : -6.0C

B : -6.0C

C : +9.0C

Total : -3.0C

Answer:here you goo

Explanation:

A mineral is a naturally occurring inorganic element or compound having an orderly internal structure and characteristic chemical composition, crystal form, and physical properties. ... A rock is an aggregate of one or more minerals, or a body of undifferentiated mineral matter.

Answer:

Minerals are naturally occuring solid while rocks are naturally occuring substances consist of aggregate minerals clumped together with other materials

Answer:

  875

Explanation:

The digits more significant than the last two integer digits are dropped from the pressure reading placed on the upper right of the station model. Generally, the dropped digits will be 9 or 10.

987.5 mb would be recorded as 875 on the model.

Answer:

See below

Explanation:

A ) distance = 1/2 a t^2    <==== when starting from rest

          20    = 1/2 (a) (3.5^2)      shows a = 3.27 m/s^2

B)   Velocity(at 3.5 s)   =   a t   = 3.27 * 3.5 = 11.42 m/s

C)    3.5 seconds      +    80 m / 11.42 m/s = 10.5 s

The potential W  for given positive charge moves in electric field is 7.388KJ. The Electric potential energy and kinetic energy at a point is 3.739KJ.

It is impossible to produce or destroy energy. The law of conservation of energy states that energy can only be changed from one form to another. For instance, when an object falls from a specific height, its potential energy is converted to kinetic energy, and the total mechanical energy is constant throughout.

Positive charge = 912.1C

Potential at point M = 8.10V

Change in Kinetic energy = amount of work done

Potential energy = charge x potential difference

                              = 912.1 x 8.10

                              = 7.388 KJ

The electric potential energy = the kinetic energy

                                                 = 912.1 x 4.10

                                                = 3.739 KJ

The power required to move a charge in opposition to an electric field is known as electric potential energy. A charge must be moved through a stronger electric field with more energy, but it also must be moved through a weaker electric field with more energy.

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Answer:

object stop

Explanation:

A person’s blood type depends on the type of protein marker, called an  Antigen, found on the cell membranes of the red blood cell.

A molecule known as an antigen is one that triggers the formation of an antibody and the immune system's response.

Large protein molecules known as antigens are found on the surface of pathogens like bacteria, fungi, viruses, and other foreign substances. When these dangerous substances enter the body, the body's immune system reacts by producing antibodies.

The ABO system distinguishes 4 major blood types:

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A circuit in a home provides power to a light fixture. The homeowners want to use a compact fluorescent bulb instead of an incandescent bulb. compact fluorescent bulbs can produce as much light as incandescent bulbs but with less energy because: it makes them a more cost-effective choice over time.

The homeowners want to use a compact fluorescent bulb instead of an incandescent bulb. Compact fluorescent bulbs can produce as much light as incandescent bulbs but with less energy. Fluorescent bulbs have been designed to put out more energy than they receive. This makes them a more efficient light source than incandescent bulbs.

Unlike incandescent bulbs, fluorescent bulbs produce less heat and use less electricity. Fluorescent bulbs produce light by exciting mercury vapor. The mercury vapor emits ultraviolet light, which is converted into visible light by a phosphor coating on the bulb's interior. This process uses less energy than an incandescent bulb, which produces light by heating a filament until it glows.

Fluorescent bulbs can also last much longer than incandescent bulbs, which makes them a more cost-effective choice over time. Overall, fluorescent bulbs are a more efficient and environmentally friendly choice for lighting compared to incandescent bulbs.

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Given the data from the question, the heat gained by the water, the rate of energy transfer and the initial temperature of the iron are:

A. The energy gained by the water is 37656 J

B. The average rate of energy transfer from

the iron sphere to the water is 125.52 J/s (Watts)

C. The initial temperature of the iron

sphere is 65.4° C

Q = MCΔT

Q = 3000 × 4.184 × 3

Q = 37656 J

Power = energy / time

Power = 37656 / 300

Power = 125.52 J/s (Watts)

Q = CT

37656 = 576 × T

Divide both side by 576

T = 37656 / 576

T = 65.4° C

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Answer:

bro we cant do this

Explanation:

Answer:

The energy resource brought into a coal power plant is coal.

Found the answer at: https://www.tva.com/energy/our-power-system/coal/how-a-coal-plant-works#:~:text=Coal%2Dfired%20plants%20produce%20electricity,to%20start%20the%20process%20over.

The waste produced by coal power plants is coal ash and the energy produced by coal power plants is electricity.

Answers found at: http://www.groundtruthtrekking.org/Issues/AlaskaCoal/Coal-Ash-Combustion-Wastes.html       and        https://www.tva.com/energy/our-power-system/coal/how-a-coal-plant-works#:~:text=Coal%2Dfired%20plants%20produce%20electricity,to%20start%20the%20process%20over.

The two laws of thermodynamics apply to what I found out in my research because I know that the entropy increase due to the combustion of conventional fuels is much larger than that resulting from that of nuclear fuels, and is therefore much more dangerous. Also, I know that heat is used to burn coal and create energy.

Found answer at: https://www.encyclopedie-energie.org/en/energy-consumption-and-entropy-release-in-the-biosphere/

Explanation:

Hope this helps, i got an okay score on it but better than nothing i guess lol

Answer:

Explanation:

The force on an electron moving through an electric field is given by:

F = qE

where q is the charge of the electron, and E is the electric field.

The force on an electron moving through a magnetic field is given by:

F = qvB

where v is the speed of the electron, and B is the magnetic field.

Since the electron is experiencing no net force, the electric force must be balanced by the magnetic force. Thus:

qE = qvB

Solving for v, we get:

v = E/B

Substituting the given values, we get:

v = 400 N/C / 0.15 T

v = 2666.67 m/s

Therefore, the speed of the electron is 2666.67 m/s.

Answer: W=75.50J

Explanation:

W=Fd