determine the moment of force f about point o . express the result as a cartesian vector. enter the x , y and z components of the moment of force separated by commas. express your answers in pound-feet to three significant figures.

Answer:

between B and D

I I srongly recommend B

¡Hellow!

For this problem, lets recabe information:

v (Velocity) = 10 m/s

a (Aceleration) = 1 m/s²

t (Time) = 1/4 min = 25 s

d (Distance) = ?

v' (Final velocity) = ?

First, for calculate distance, lets applicate formula:

                                        \(\boxed{\boxed{\text{d = Vo * t + (a * t}^{2})\text{ * 0,5} } }\)

Lets replace according we information and let's resolve it:

d = 10 m/s * 25 s + (1 m/s² * (25 s)²) * 0,5

d = 250 m + (625 m) * 0,5

d = 2,5 m + 312,5 m

d = 314 meters.

Now, for calculate final speed, lets applicate formula:

                                                 \(\boxed{\boxed{\text{v' = v + a * t} } }\)

Lets replace according we information and let's resolve it:

v' = 10 m/s + 1 m/s² * 25 s

v' = 10 m/s + 25 m/s

v' = 35 m/s

¿Good Luck?

Att: That guy who use the "ñ".

Answer ideal mechanical advantage

Answer:

A Newton's First law

Explanation:

In Newtons first law of motion it states that that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. Which mean the ball will not move until the force of the child come and pushes on the ball.

The velocity of the object is  23.24 m/s.

An attribute of an object moving in a circular route is centripetal acceleration. Any object moving in a circle with an acceleration vector pointing in the direction of the circle's center is said to be experiencing centripetal acceleration.

Given that an object is experiencing a centripetal acceleration of 36m/s^2.

Radius of the circle: r = 15 m.

Then, the velocity of the object is = √(36×15) m/s = 23.24 m/s.

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If the total work is 3/4 j, then the total work is 3/4 j, the distance is 5 m, and the force required to push the box 5 m is 3/20 j/m, which is calculated using the formula: force (F) = work (W) / distance (D).

Total work = 3/4 j

Distance = 5 m

Work (W) = Force (F) x Distance (D)

Force (F) = Work (W) / Distance (D)

(W = 3/4 j ,D = 5 m)

F = W / D

F = (3/4 j) / (5 m)

F = (3/4) × (1 j/ 5 m)

F = 3/20 j/m

Hence, the total work is 3/4 j, the distance is 5 m, and the force required to push the box 5 m is 3/20 j/m, which is calculated using the formula: force (F) = work (W) / distance (D).

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Answer:

3.71 m/s in the negative direction

Explanation:

From collisions in momentum, we can establish the formula required here which is;

m1•u1 + m2•v2 = m1•v1 + m2•v2

Now, we are given;

m1 = 1.5 kg

m2 = 14 kg

u1 = 11 m/s

v1 = -1 m/s (negative due to the negative direction it is approaching)

u2 = -5 m/s (negative due to the negative direction it is moving)

Thus;

(1.5 × 11) + (14 × -5) = (1.5 × -1) + (14 × v2)

This gives;

16.5 - 70 = -1.5 + 14v2

Rearranging, we have;

16.5 + 1.5 - 70 = 14v2

-52 = 14v2

v2 = - 52/14

v2 = 3.71 m/s in the negative direction

The final velocity of the body 2 is 3.71 m/s in the negative sense.

The given parameters:

The final velocity of the body 2 is calculated by applying the principle of conservation of linear momentum;

\(m_1 u_1 + m_2 u_2 = m_1 v_1 + m_2 v_2\\\\1.5(11) + 14(-5) = 1.5(-1) + 14(v_2)\\\\-53.5 = -1.5+ 14v_2\\\\-52 = 14v_2\\\\v_2 = \frac{-52}{14} \\\\v_2 = -3.71 \ m/s\)

Thus, the final velocity of the body 2 is 3.71 m/s in the negative sense.

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Answer:

9882.516J

Explanation:

49kg*9.8m/s2*2.1m=9882.516 J

Answer:

Earthquakes are likely to occur along the San Andreas Fault.

Explanation:

Climate in an area is determined by a complex interplay of factors, including mountains latitude, topography, and atmospheric circulation patterns. Understanding these factors is crucial in predicting weather patterns.

Three factors that contribute to an area's climate are:

1) Latitude: The latitude of an area determines the angle at which the sun's rays hit the earth's surface, which affects the amount of solar energy that is absorbed. Areas near the equator receive more direct sunlight and therefore tend to be warmer, while areas near the poles receive less direct sunlight and tend to be cooler.

2) Topography: The topography of an area, including its elevation and proximity to large bodies of water or mountains, can greatly influence its climate. Areas at high elevations are generally cooler than areas at lower elevations, and areas near large bodies of water tend to have milder temperatures due to the moderating effect of the water. Mountains can also influence climate by blocking or redirecting prevailing winds, leading to variations in temperature and precipitation.

3) Atmospheric circulation patterns: The movement of air masses and weather systems around the globe is driven by a complex interplay of factors, including temperature, pressure, and the rotation of the earth. These circulation patterns can greatly affect the climate of an area by determining the direction and intensity of winds, the amount of precipitation, and the frequency and severity of storms.

In Ricardo's case, the climate in his area is likely influenced by all three of these factors. The latitude of his location along the west coast of the mountains will determine the angle at which the sun's rays hit the earth's surface and thus the amount of solar energy absorbed. The topography of the area will also play a role in determining the temperature and precipitation patterns, as well as the effect of ocean winds blowing from the Pacific. Finally, atmospheric circulation patterns will determine the direction and intensity of winds and the frequency and severity of storms that pass through the area.

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We can find direction by electric field diagram and magnitude remain the same despite of a change in positions.

When a proton is placed at point A and an electron is placed at point B, the direction of the electric force F is determined by the electric field line diagram. The electric force between the two charges is a vector force, which means it has both a magnitude (strength) and a direction.

The magnitude of the electric force F between a proton and an electron is determined by Coulomb's Law, which states that the magnitude of the force between two charges is in direction proportion to charges' product and in inverse proportion with their distance squared.

to the product of the two charges and inversely proportional to the square of the distance between them. Thus, the magnitude of the electric force F between the charges is independent of the direction, so the magnitudes of the electric force F between a proton and an electron, regardless of their positions, will always be the same.

The direction of the electric force F, however, is determined by the electric field line diagram. In the diagram, the electric force F is directed away from the positive charge (the proton) and toward the negative charge (the electron). Therefore, the electric force F will be directed away from point A and toward point B, making the angle relative to the +x axis clockwise, with a positive angle.

In summary, the magnitude of the electric force F between a proton and an electron will remain the same regardless of the positions of the particles, while the direction of the electric force F will be determined by the electric field line diagram, with the angle relative to the +x axis clockwise, with a positive angle.

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a) The normal force that the wall exerts on the top tip of the ladder is the weight of the ladder (12.0 kg x 9.8 m/s2) plus the weight of the painter (55.0 kg x 9.8 m/s2): 129.6 N.

b) The normal force that the floor exerts on the bottom tip of the ladder is the weight of the ladder (12.0 kg x 9.8 m/s2) plus 3/4 of the weight of the painter (41.25 kg x 9.8 m/s2): 111.35 N.

c) The coefficient of static friction between the ladder and the floor is 6015

a) The normal force that the wall exerts on the top tip of the ladder is the sum of the weight of the ladder and the weight of the painter, since the wall is supporting both these objects.

b) The normal force that the floor exerts on the bottom tip of the ladder is the sum of the weight of the ladder and 3/4 of the weight of the painter, since the painter is only 70% of the way up the ladder.

c) The coefficient of static friction between the ladder and the floor can be calculated by taking the ratio of the normal force to the frictional force: μ = Ff/Fn.

Since the normal force is 111.35 N and the frictional force is the minimum force necessary to prevent the ladder from slipping, it can be calculated by multiplying the weight of the ladder and the painter (67.25 kg x 9.8 m/s2) by the coefficient of static friction: μ = Ff/Fn = 684.85/111.35 = 6.15.

The coefficient of static friction between the ladder and the floor is calculated by taking the ratio of the normal force to the frictional force. The normal force is the sum of the weight of the ladder and the painter, and the frictional force is the minimum force necessary to prevent the ladder from slipping.

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Answer:

Moment of Inertia, I = 0.016 kgm²

Explanation:

Mass of the ball, m = 0.20 kg

Length of the pitcher's arm, l = 0.28

Radius of the circular arc, r = 0.28 m

Moment of Inertia is given by the formula:

I = mr²

I = 0.20 * 0.28²

I = 0.20 * 0.0784

I = 0.01568

I = 0.016 kgm²

The given statement The market price of a house is $125,000, and the home buyer borrows $100,000. Two points are equal to $2,000 is true.

Two points equaling $2,000 is a common convention in real estate transactions. Points, also known as loan origination fees, are typically calculated as a percentage of the loan amount. In this case, two points amount to $2,000 on a $100,000 loan.

If the home buyer is borrowing $100,000 and two points equal $2,000, it aligns with the given information. Therefore, the statement is true.

Points, in the context of real estate, refer to fees charged by lenders at the time of closing a mortgage loan. Each point is typically equal to 1% of the loan amount. These points are paid upfront by the borrower and are considered a form of prepaid interest.

The purpose of points is to lower the interest rate on the mortgage loan. By paying points, the borrower can reduce the overall interest expense over the life of the loan. Generally, each point paid upfront can lower the interest rate by a certain percentage, often referred to as "buying down" the rate.

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Ohm's law has three formulas, which are V = IR, I = V/R, and R = V/I.

Ohm's law describes the relationship between voltage, current, and resistance in an electrical circuit. The first formula, V = IR, states that the voltage across a resistor is directly proportional to the current flowing through it, with the constant of proportionality being the resistance of the resistor.

The second formula, I = V/R, expresses the current flowing through a resistor in terms of the voltage across it and the resistance of the resistor. Finally, the third formula, R = V/I, gives the resistance of a resistor in terms of the voltage across it and the current flowing through it. These formulas are commonly used in analyzing and designing electrical circuits.

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Answer:

A (Crystallization of fish sauce)

Explanation for Answer:

The answer is A because the fish sauce is changing physical forms; it goes from being a liquid to a crystalized solid.

More Explanation on Physcal Changes:

Physical changes are changes affecting the form of a chemical substance, but not its chemical composition. Physical changes are used to separate mixtures into their component compounds, but can not usually be used to separate compounds into chemical elements or simpler compounds.

Have a great day! :D

Answer:

-15?

Explanation:

Screw pump, Drill Machine, Bottle Caps, Faucets and Car Jack are the five examples of screws that we see in everyday life.

Screw is defined as a short, sharp-pointed metal pin with a raised helical thread present round it. It has a slotted head that is used to join things together by rotating it so that it pierces wood and is held tightly on its place. Screw is used in many materials in order to join two frames or bodies with each other. Without this screw, we can't imagine many materials to work together so screw has very high importance.

So we can conclude that Screw pump, Drill Machine, Bottle Caps, Faucets and Car Jack are the five examples of screws that we see in everyday life.

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Answer:

???

Explanation:

What specifically are you asking about

Answer:

no

Explanation:

because , not all the time the buyers can understand the scientific meaning

Answer: I didnt understand it sorrryryyyyyyy

Explanation:

Hi There, Buddy!

To solve this problem, let us divide the entire motion into 2 phases

1.) When the elevator is moving with an acceleration

2.) When the elevator has a deceleration

For the first half -

u = 0 , a = 0.6 , t = t1

v = 0.6(t1)  ---------- ( 1 )

s = 1/2 x 0.6 x (t1)^2 = 0.3(t1^2) -------- ( 2 )

For the second half -

u = 0.6(t1) , a = -0.8 , v = 0

0.6 x (t1) = 0.8 (t2) ----> 3(t1) = 4(t2) ---------- ( 3 )

0.36(t1)^2 = 1.6 s2 ---------- ( 4 )

Now, we know that the total time taken is 10 seconds

------- t1 + t2 =10 , 3t1 = 4t2 ---- t1 = 40/7 , t2 = 30/7

Now, substitute values of t1 and t2 in s1 and s2 and add both s1 and s2 to get total distance travelled.

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Answer:

Osteologists are trained to read and translate a bone's story.

Explanation:

This rare skill provides information that helps us better understand ancient cultures, solve mysteries, and learn about animals. Being an Osteologist means you have a variety of job opportunities.

In rocket propulsion, saved gasoline and stored oxidizer are ignited in a combustion chamber. The combustion produces extremely good amounts of exhaust fuel at high temperatures and stress.

The new exhaust is passed through a nozzle which speeds up the flow. Thrust is produced in step with Newton's 0.33 regulation of movement.

Because the exhaust gases cross in one direction, the rocket is going within the different to maintain the full momentum of the system consistently. This momentum change of the gases gives the rocket the push to move forward. We name this push, the thrust of the rocket, i.e. the pressure exerted on the rocket.

A rocket propulsion produces thrust through movement and response. The engine produces hot exhaust gases which float out of the back of the engine. In response, a thrusting force is produced in the contrary reaction.

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The correct answer is

B. corona.

The corona is the outermost layer of a star's atmosphere and extends millions of kilometers into space.

It is composed of extremely hot plasma and is most easily observed during a total solar eclipse when it appears as a faint, pearly-white glow surrounding the darkened disk of the Moon. The other options mentioned are also parts of a star, but they do not extend to the same distances as the corona.

Hot plasma is a state of matter in which particles, such as electrons and ions, are so energized that they become completely or partially ionized. Plasma is often referred to as the fourth state of matter, in addition to solid, liquid, and gas. It is characterized by its ability to conduct electricity and respond to magnetic fields.

When a substance is heated to high temperatures, the thermal energy causes the atoms or molecules to move rapidly, eventually leading to the breaking of chemical bonds. In the case of plasma, the extreme heat causes the atoms to lose electrons, resulting in a mixture of positively charged ions and negatively charged electrons. This ionization process gives rise to a highly conductive medium with unique properties.

Plasmas can be found naturally occurring in phenomena such as lightning, the Sun's corona, and certain types of flames. They can also be created in laboratory settings using various methods, including heating a gas to high temperatures, subjecting it to strong electromagnetic fields.

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Answer:

a. potential energy

Explanation:

ur welcome

Answer:

(a) 165.46 V

(b) 7.78 A

Explanation:

(a) From the question,

Vrms = V₀/√2...................... Equation 1

Where V₀ = maximum potential difference across a lamp connected to the outlet.

make V₀ the subject of the equation.

V₀ = √2(Vrms)............... Equation 2

Given: Vrms = 117 V.

Substitute into equation 2

V₀ = (√2)(117)

V₀ = 165.46 V.

(b) Similarly,

I₀ = √2(Irms)....................... Equation 3

Given: Irms = 5.5 A

Substitute into equation 3

I₀ = (√2)(5.5)

I₀ = 7.78 A.

To find the activation energy for the reverse reaction, you can use the Arrhenius equation: Ea = -ln(k / (A * T)) * (R * T)

To find the activation energy for the reverse reaction, you can use the Arrhenius equation. The Arrhenius equation relates the rate constant of a reaction to the temperature and activation energy. The equation is as follows:

k = A * e^(-Ea/RT)

Where:

To find the activation energy for the reverse reaction, you need to know the rate constant and temperature values corresponding to the reverse reaction. Once you have these values, you can rearrange the equation to solve for the activation energy:

Ea = -ln(k / (A * T)) * (R * T)

By plugging in the values of the rate constant, pre-exponential factor, and temperature, you can calculate the activation energy for the reverse reaction.

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The activation energy for the reverse reaction can be found using the Arrhenius equation and experimental data.

To determine the activation energy for the reverse reaction, one can use the Arrhenius equation: k = A * e^(-Ea/RT), where k is the rate constant, A is the pre-exponential factor, Ea is the activation energy, R is the gas constant, and T is the temperature in Kelvin. By conducting experiments at different temperatures and measuring the rate constants, one can obtain a set of data points. By taking the natural logarithm of both sides of the Arrhenius equation and rearranging, a plot of ln(k) versus 1/T can be created. The slope of this plot will be equal to -Ea/R, allowing for the determination of the activation energy.

The activation energy for the reverse reaction can be determined by utilizing the Arrhenius equation and conducting experiments at different temperatures. By analyzing the resulting data and plotting ln(k) versus 1/T, the activation energy can be calculated from the slope of the plot. This method provides insights into the energy barrier required for the reverse reaction to occur and aids in understanding the reaction kinetics and thermodynamics involved.

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