A rocket burns fuel at a rate of 269 kg/s and
exhausts the gas at a relative speed of 3 km/s.
Find the thrust of the rocket.
Answer in units of MN.

Answer:

The pressure on the floor is 12 Pascal(Pa).

Explanation:

Given,

Force (F) = 240N

Area (A) = 20 cm^2

Pressure (P) = ?

we know that,

P = F/A

= 240/ 20

= 12 Pa

The anticipated number of miles Karl drives can be determined by using the line of fit equation and plugging in the value of 50 minutes for the independent variable. The resulting value will be the predicted number of miles driven by Karl in 50 minutes.

To explain further, a line of fit is a line that represents the trend of a set of data points in a scatter plot. In this case, the line of fit equation was likely derived from a set of data points that show the relationship between the amount of time Karl drives and the corresponding distance he covers. By using this equation, we can estimate the number of miles he drives for a given amount of time.

For example, if the line of fit equation is y = 0.8x + 5, where y represents the number of miles driven and x represents the time in minutes, we can plug in x = 50 and solve for y to get:

y = 0.8(50) + 5 = 45

Therefore, the anticipated number of miles Karl drives in 50 minutes is 45.

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Answer:

Explanation:

Momentum P=mass×velocity

1000=800×velocity

1000=800V

V=1000/800=2.5m/s

Answer:

The tabletop is smooth so my finger is down it fast and easy. The fabric however slowed my finger down considerably, and it was harder for me to move my finger across it.

Explanation:

Hope this helps.

The rug, carpet, or cloth offers more resistance to motion because of its rougher texture and higher friction.

Pushing on the surface: You'll probably experience some resistance when you push the plastic or wood over the surface. When compared to other surfaces, this opposition is, nevertheless, somewhat minimal. Since the tabletop often has a smoother surface, there is less friction. This makes it possible for the object to slide with very little resistance.

Pushing on a Rug, Carpet, or Piece of Fabric: In comparison to a tabletop, a rug, carpet, or piece of fabric will likely present you with substantially more resistance to your push. Since these surfaces typically have more texture and roughness, friction is enhanced.

In conclusion, the rug, carpet, or cloth offers more resistance to motion because of its rougher texture and higher friction, whereas the opposition to motion on the tabletop is often lower due to the smoother surface and lower friction. The difference in friction force between smooth and rough surfaces explains why items slide more readily on smooth surfaces. Friction has a significant impact on how things move and interact with various surfaces in daily life.

Hence, the rug, carpet, or cloth offers more resistance to motion because of its rougher texture and higher friction.

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Answer:

Long short

Explanation:

1

Dogs that are bigger are selected to be parents.

2

The parents are bred together, and their offspring will be different sizes.

3

The biggest offspring will be selected and bred together.

4

This cycle continues until the dogs have been selectively bred to be bigger than the current world record size.

5

Selective breeders need to ensure that they are not also selecting for disadvantageous traits, like genetic limb defects.

Ur gonna need this...

Brainliest plzzz..thanks..sorry Messy

Answer:

Geological and atmospheric changes happening over a long time scale can cause short extinctions.

Explanation:

A distinction between thermal energy and internal energy is : Thermal energy emphasizes heat flow, whereas internal energy is the grand total of all energies inside a substance. Physicists prefer internal energy. Option(d).

Thermal energy refers to the energy associated with the temperature of a substance or a system. It is related to the kinetic energy of the molecules or particles within the system. Internal energy, on the other hand, encompasses all forms of energy present within a substance, including kinetic energy, potential energy, and the energy associated with the molecular structure.

Physicists generally prefer the term "internal energy" because it encompasses all energy components within a system, whereas "thermal energy" specifically refers to the energy associated with temperature and heat flow. Internal energy is a more comprehensive term that takes into account various types of energy and their interactions within a substance.

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False. Destructive interference is not the result of the superposition of waves in phase. Superposition is a term used to describe the phenomenon that occurs when two waves meet and combine to form a new wave.

The waveforms add together to create the new waveform, which has characteristics that are determined by the properties of the original waves.What is destructive interference?When waves meet and their waveforms are out of phase, destructive interference occurs. The amplitude of the resulting waveform is decreased, and the resulting waveform has a different shape than either of the original waveforms. Destructive interference, also known as out-of-phase interference, occurs when two waves meet and cancel each other out. When the waves are in phase, they combine to form a larger waveform with greater amplitude than either of the original waveforms. This is known as constructive interference.To conclude, destructive interference is not the result of the superposition of waves in phase. It occurs when two waves are out of phase and combine to create a new waveform that has a smaller amplitude than either of the original waveforms.

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This statement about distance is proved.

What is distance?

It is length of space between two points.

Okay so the first three parts of this problem is more mathematics and physics. Um So part A were given Ds equals R. D. Data. We're required to find S. So we just integrate both sides then as equals integration of R. D. Data. Our data is given. So the upon integration over our data is simply R zero santa plus one half beta zeta squared for part B. We'll fix that S equals V. T. Um And using as equals dis above equation we combine these two. We see this is Justin equation for data so we can suffer it to get to roots once positive. The other negative of course which is a positive one because it has the correct physical meaning a negative data would mean that uh the direction of rotation is in the opposite direction.

standard uh standard units is zero point 247 times turn to the negative six nature radio. And we're also given the time 74 minutes or equivalently 4440 seconds. So plugging all this. So plugging data mm hmm and R zero into the expression of um data. So we plug in better Data. V is also given. So everything is known. We can safely find data to be um 1.337 Times 10-5 brilliant. Or in terms of revolutions is 2.13 times 10 to 4 revolution. Okay. In the last part of the problem, we simply well plugging again the numbers for beta, tr zero V to the previous expressions for omega and alpha. You can enjoy the using mathematical or even by hand or maybe he looks like this shape while um the alpha t looks more like this.

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Passive solar heating utilizes design and natural processes to capture and distribute solar energy without mechanical devices, while active solar heating uses mechanical systems to collect and distribute solar heat, requiring external energy inputs.

Passive solar heating and active solar heating are two different approaches to utilizing solar energy for heating purposes. Here's a brief explanation of each:

1. Passive Solar Heating:

Passive solar heating refers to the design and use of building materials to capture, store, and distribute solar energy without the use of mechanical or electrical devices. It relies on natural processes and elements to maximize solar gain and heat transfer. Some common passive solar heating techniques include:

Passive solar heating systems do not require active mechanical components like pumps or fans and are generally considered more energy-efficient and cost-effective.

2. Active Solar Heating:

Active solar heating involves the use of mechanical and electrical devices to collect, store, and distribute solar energy for heating purposes. It typically utilizes solar collectors, such as solar panels or solar thermal systems, to capture sunlight and convert it into heat energy. The collected heat is then transferred to a heat storage system or directly used to provide space heating or water heating. Active solar heating systems may involve pumps, fans, and controls to circulate the heated fluid or air throughout the building.

Active solar heating systems require external energy inputs, such as electricity for powering pumps or fans, and often involve more complex installation and maintenance compared to passive solar heating. However, they can offer greater control and efficiency in heating applications, especially in larger or more demanding spaces.

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Answer:

The final position is  (2, 7)m

Explanation:

When we work with coordinate pairs, the addition works as:

(a, b) + (c, d) = (a + c, b + d)

So, for example, if we start at (a, b), and we have a displacement d = (1, 1)

we just need to solve:

(a, b) + (1, 1) = (a + 1, b + 1)

Now, in this case, we start at (4, 4)m

first, we have d1 = (2, -3) m

After this displacement, the position is:

(4, 4)m + (2, -3)m = (4 + 2, 4 - 3)m = (6, 1)m

Now we have a displacement d2 = (-5, 0) m

After this, the position is:

(6, 1)m + (-5, 0)m = (6 -5, 1 + 0)m = (1, 1)m

After this, we have the final displacement d3 = (1, 6) m, so the final position will be:

(1, 1)m + (1, 6)m = (1 + 1, 1 + 6)m = (2, 7)m

Below you can see a rough sketch of the path that the student take, where he/she starts at point A.

Answer:

The equivalent resistance of the combination is R/100

Explanation:

Electric Resistance

The electric resistance of a wire is directly proportional to its length. If a wire of resistance R is cut into 10 equal parts, then each part has a resistance of R/10.

Parallel connection of resistances: If R1, R2, R3,...., Rn are connected in parallel, the equivalent resistance is calculated as follows:

\(\displaystyle \frac{1}{R_e}=\frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}+...+\frac{1}{R_n}\)

If we have 10 wires of resistance R/10 each and connect them in parallel, the equivalent resistance is:

\(\displaystyle \frac{1}{R_e}=\frac{1}{R/10}+\frac{1}{R/10}+\frac{1}{R/10}...+\frac{1}{R/10}\)

This sum is repeated 10 times. Operating each term:

\(\displaystyle \frac{1}{R_e}=\frac{10}{R}+\frac{10}{R}+\frac{10}{R}+...+\frac{10}{R}\)

All the terms have the same denominator, thus:

\(\displaystyle \frac{1}{R_e}=10\frac{10}{R}=\frac{100}{R}\)

Taking the reciprocals:

\(R_e=R/100\)

The equivalent resistance of the combination is R/100

The air you feel next to Earth's surface in the shade is heated by two main factors: indirect solar radiation and redirected solar radiation.

Indirect solar radiation refers to the process by which sunlight is absorbed by the Earth's surface and then re-emitted as heat. When the sun's rays reach the Earth, some of the energy is absorbed by buildings, pavement, and other objects. As these objects heat up, they release the absorbed energy as heat, which warms the surrounding air. This is why the air feels warm when you walk around the ASU Campus in the shade.

Redirected solar radiation also plays a role in heating the air near the Earth's surface. This occurs when sunlight is scattered or reflected by the atmosphere, clouds, or nearby objects, and then reaches the shaded areas. The redirected solar radiation contributes to the overall heating of the air, making it feel warm.

In conclusion, the air you feel next to Earth's surface in the shade is heated by indirect solar radiation, as the absorbed energy from the sun is released as heat, and redirected solar radiation, as sunlight is scattered or reflected and contributes to the warming of the air.

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For the electrons in silicon, we have:

a) The drift velocity of electrons at room temperature is 70 m/s.

b) The time that takes an electron to traverse a 25-mm length of crystal is 3.57x10⁻⁴ s.

a) The drift velocity of electrons can be calculated with the following equation:

\( v = \mu_{e} E \)

Where:

\(\mu_{e}\): is the electrons mobility = 0.14 m²/V*s (at room tempearture)

E: is the electric field = 500 V/m

Hence, the drift velocity is:

\( v = \mu_{e} E = 0.14 m^{2}/(V*s)*500 V/m = 70 m/s \)

b) The time that takes an electron to traverse a 25-mm length of crystal is the follows:

\( t = \frac{d}{v} \)

Where:

d: is the distance = 25 mm = 0.025 m

So, the time is:

\( t = \frac{d}{v} = \frac{0.025 m}{70 m/s} = 3.57 \dot 10^{-4} s \)

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I hope it helps you!

Answer:

\(300\) cm are equivalent to \(3\) m.

Explanation:

\(100\) cm are equivalent to \(1\) m.

\(100 \mathrm{~cm}$=1{~m}$\)

\(3 \mathrm{~m}$=3\times100\)

\(=$300{~cm}$\)

To convert meters (\(\mathrm{~m}$\)) into number of centimeters (\(\mathrm{~cm}$\)), multiply that number by \(100\).

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The time until A arrives is exponentially distributed with rate λa, and the time until B arrives is exponentially distributed with rate λb.  The four exponential random variables are independent. Find the expected times of both the first and the second departures is as follow:

Assume for simplicity that λa = λb = λ and µa = µb = µ.v

The expected times of both the first and the second departures are given by;

Expected time of the first departure (E1) = E[A+Ta,B+Tb]

Expected time of the second departure (E2) = E[A+Ta+B+Tb]

Where E is the expected value, A is the time until A arrives, Ta is the time A spends at the home, B is the time until B arrives, and Tb is the time B spends at the home.

Using the exponential distribution for these random variables,

E[A+Ta] = E[Ta]+E[A]

= (1/µa) + (1/λa)E[B+Tb] = E[Tb]+E[B]

= (1/µb) + (1/λb)

Therefore,E1 = (1/µa) + (1/λa) + (1/µb) + (1/λb)E2

= (1/µa) + (1/λa) + (1/µb) + (1/λb) + (1/µa) + (1/µb)

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Answer:

option 3 potential chemical energy

Answer:

what does it mean

Explanation:

How can I help with your question?

Answer:

12m

Explanation:

if W= work , F= force and x= how far the car moved :

\(w = f \times x \\ 1200 = 100x \\ x = \frac{1200}{100} \\ x = 12m\)

Answer: It is B 38% have a good day :DDD

Answer:

Batteries are systems that store chemical energy and then release it as electrical energy when they are connected to a circuit. Batteries can be made from many materials, but they all share three main components: a metal anode, a metal cathode and an electrolyte between them. The electrolyte is an ionic solution that allows charge to flow through the system. When a load, such as a light bulb, is connected, an oxidation-reduction reaction occurs that releases electrons from the anode while the cathode gains electrons

Explanation:

A planes average speed between two cities is 610 km/hr. If the trip takes 2. 25 hrs, then the distance covered by a plane is  1372.5 kilometers.

To calculate the distance the plane flies, we can use the formula:

Distance = Speed × Time

Given that the average speed of the plane is 610 km/hr and the trip takes 2.25 hours, we can substitute these values into the formula to find the distance.

Distance = 610 km/hr × 2.25 hrs

To multiply these values, we need to align the units correctly. By canceling out "hrs" in the numerator and denominator, we get:

Distance = 610 km × 2.25

Multiplying 610 km by 2.25 gives us:

Distance = 1372.5 km

Therefore, the plane flies a distance of 1372.5 kilometers.

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Given that a plane's average speed between two cities is 610 km/hr and the trip takes 2.25 hrs. We are to find the distance covered by the plane The plane flies 1372.5 km

Let's find the solution to this problem .The formula for distance, speed and time isd

= s * there,

d = distance covered by the planes

= speed t

= time taken

Substituting the given values, we have610 × 2.25 = 1372.5 km

Hence, the plane flies 1372.5 km.

Given that a plane's average speed between two cities is 610 km/hr and the trip takes 2.25 hrs. We are to find the distance covered by the plane

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When the horizontal and vertical components of the resultant force are equal to each other, the force that is independent is the resultant force. The two forces that are dependent on each other are the horizontal force and the vertical force.

The relationship between the two forces that are dependent on each other is that they must have equal magnitudes and opposite directions. This means that the magnitude of the vertical force must be equal to the magnitude of the horizontal force, and the vertical force must be in the opposite direction of the horizontal force. This allows the two forces to cancel each other out, resulting in a resultant force of zero.

To further explain, let us consider an example of a block being pulled horizontally and upward at the same time. The horizontal force and the vertical force both act on the block in opposite directions and with equal magnitudes, thus creating a resultant force of zero. If the magnitudes of the two forces are unequal, then the block will move in the direction of the larger force.

In conclusion, when the horizontal and vertical components of the resultant force are equal to each other, the independent force is the resultant force, and the two dependent forces are the horizontal and vertical forces. The relationship between the two forces that are dependent on each other is that they must have equal magnitudes and opposite directions.

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Answer:

Gravitational Energy

Applying Newton's third law, these two impulsive forces are equal and opposite i.e. If the time of contact is t, the impulse of the force F21 is equal to the change in momentum of the first object. The impulse of force F12 is equal to the change in momentum of the second object.

The term that increases when air faces greater resistance against an object with a larger surface area is drag.

The drag force is created when a solid object moves through a fluid (liquid or gas), such as air, and experiences resistance to its motion.Drag can be affected by various factors, including the object's shape and surface area. In general, objects with larger surface areas will experience more drag than those with smaller surface areas because they create more friction with the surrounding fluid. For example, a flat, wide object like a barn door will experience more drag than a narrow object like a pencil because it has a larger surface area. Similarly, a parachute will experience a large amount of drag because of its large surface area, which creates a significant amount of friction with the air molecules around it.In order to minimize drag and increase efficiency, engineers and designers often try to create streamlined objects with minimal surface area. This can be seen in the design of cars, airplanes, and even swimsuits used by competitive swimmers. By minimizing drag, these objects are able to move more quickly and with less effort through their respective fluids.

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The speed of the box when Southie stops pushing is 0.6 m/s. When Southie stops pushing the kinetic energy became zero.

We can solve this problem using conservation of energy, assuming there is no friction. The initial kinetic energy of the box is given by:

K1 = (1/2)mv1²

where m is the mass of the box, and v1 is the initial velocity of the box, which is 0.1 m/s.

As the box is lifted up the wall, its potential energy increases by an amount equal to the work done by the force of gravity:

U = mgh

where h is the height the box is lifted, which is 0.4 m, and g is the acceleration due to gravity, which is approximately 9.8 m/s².

At the point where Southie stops pushing, all of the work done on the box has gone into increasing its potential energy, so the final potential energy of the box is:

U = mgh

The final kinetic energy of the box can be found using the conservation of energy principle:

K2 + U2 = K1 + U1

where K2 is the final kinetic energy of the box, and U2 is the final potential energy of the box.

Since the box comes to a stop at the end, its final kinetic energy is 0, so we can simplify the equation to:

U2 = K1 + U1

Substituting in the values we have:

mgh = (1/2)mv1² + mgh0

where h0 is the initial height of the box, which we can take to be 0.

Simplifying and solving for v2, the final velocity of the box, we get:

v2 = sqrt(2gh + v1²)

Plugging in the values we get:

v2 = sqrt(2 * 9.8 m/s² * 0.4 m + (0.1 m/s)²) = 0.6 m/s

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Answer:

C. Equal to 0

Explanation:

voltage is only produced when the magnet is in motion. Hope this helps :)

Answer:

V = 19.62 [m/s]

Explanation:

To solve this problem we must use the following equation of kinematics:

\(v=v_{o} +(g*t)\)

where:

V = final velocity [m/s]

Vo = initial velocity = 0

g = gravity acceleration = 9.81 [m/s²]

t = time = 2 [s]

V = 0 + (9.81*2)

V = 19.62 [m/s]