A beam is part of the framing system for the floor of an office building. The floor is subjected to both dead loads and live loads. The maximum moment caused by the service dead load is 45 kips-ft, and the maximum moment for the service live load of 63kips−ft (these moments occur at the same location on the beam and can therefore be combined). a. If load and resistance factor design is used, determine the maximum factored bending moment (required moment strength). What is the controlling AISC load combination? b. What is the required nominal moment strength for a resistance factor ϕ of 0.90 ? c. If allowable strength design is used, determine the required moment strength. What is the controlling AISC load combination? d. What is the required nominal moment strength for a safety factor Ω of 1.67 ?

Answer:

Generally, a solute dissolves faster in a warmer solvent than it does in a cooler solvent because particles have more energy of movement. For example, if you add the same amount of sugar to a cup of hot tea and a cup of iced tea, the sugar will dissolve faster in the hot tea.

Kinetic energy of the ball is 31.25 J.

Mass of the ball, m = 0.05 kg

Velocity of the ball, v = 25 m/s

Kinetic energy of the ball,

KE = 1/2 mv²

KE = 0.05 x 25²

KE = 31.25 J

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Your question was incomplete, but most probably your question will be:

A 0.05 kg is ball moving at 25 m/s. Calculate its kinetic energy.

Electromagnetic waves are a form of radiation that occurs when electric fields and magnetic fields are coupled with each other. Thus, option C is correct.

An electromagnetic field is formed with an electric field and a magnetic field that are dependent on each other. The two fields are perpendicular to each other and travel in that direction as well.

Electromagnetic waves are not elastic waves either and can travel in a vacuum. They are different from mechanical waves as electromagnetic waves can travel in the absence of a medium. They travel at the speed of 3x\(10^{8}\)m/s. Thus, only option C is right.

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Complete question:-

Which of the following are the characteristics of electromagnetic waves?

1. They are elastic waves.

2. They can also move in a vacuum.

3, They have electric and magnetic components which are mutually perpendicular.

4, They move with a speed equal to 3 lakh meters per second.

Select the correct answer using the code given below :

A) 1, 2, 3 and 4

B) 1, 2, and 4

C) 2 and 3 only

D) 3 and 4 only

The red wave has a greater amplitude because its height is greater than the height of the blue wave. Both waves have the same wavelength because the distance between crests is the same(A&B).

The amplitude of a wave refers to the maximum displacement or height of the wave from its rest position. Comparing the red and blue waves, it is mentioned that the height of the red wave is greater than the height of the blue wave. Therefore, the red wave has a greater amplitude.

The wavelength of a wave refers to the distance between two consecutive points that are in phase, such as two adjacent crests or troughs. The statement mentions that both waves have the same distance between their crests. Therefore, the red and blue waves have the same wavelength.

To summarize, the red wave has a greater amplitude because its height is greater, while both waves have the same wavelength because the distance between their crests is the same(A&B).

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The rate of heat loss per meter length of the pipe is approximately 791355.32 Watts. This is determined by calculating the heat transfer through the inner lagging layer and the pipe wall and adding them together.

To determine the rate of heat loss per meter length of the pipe, we need to calculate the heat transfer through each layer of the pipe and add them up.

First, let's calculate the heat transfer through the inner layer of lagging:

1. Calculate the thermal resistance of the inner lagging layer:

\(R_\text{inner} = \frac{\text{thickness}\text{inner}}{\text{conductivity}\text{inner} \cdot \text{area}}\)

\(R_\text{inner} = \frac{0.05~\text{m}}{0.04~\text{W}/\left(\text{m}\cdot\text{K}\right) \cdot \pi \cdot (0.1~\text{m})^2} = 0.039~\text{m}^2\cdot\text{K}/\text{W}\)

2. Calculate the heat transfer through the inner lagging layer using the formula:

  \(\begin{equation}Q_\text{inner} = \frac{T_\text{inner} - T_\text{pipe}}{R_\text{inner}}\)

\(Q_\text{inner} = \frac{600~\text{K} - 380~\text{K}}{0.039~\text{m}^2\cdot\text{K}/\text{W}} = 5641.03~\text{W}\)

Next, let's calculate the heat transfer through the pipe wall:

1. Calculate the thermal resistance of the pipe wall:

\(R_\text{wall} = \frac{\text{thickness}\text{wall}}{\text{conductivity}\text{wall} \cdot \text{area}}\)

\(R_\text{wall} = \frac{0.006\text{ m}}{(45\text{ W}/(\text{m K})\times \pi \times (0.1\text{ m})^2)} = 0.00028\text{ m}^2\text{ K}/\text{W}\)

2. Calculate the heat transfer through the pipe wall using the formula:

 \(Q_\text{wall} = \frac{T_\text{pipe} - T_\text{outer}}{R_\text{wall}}\)

\(Q_\text{wall} = \frac{600~\text{K} - 380~\text{K}}{0.00028~\text{m}^2\cdot\text{K}/\text{W}} = 785714.29~\text{W}\)

Finally, the total heat loss per meter length of the pipe is the sum of the heat transfers through the inner lagging layer and the pipe wall:

\(Q_\text{total} = Q_\text{inner} + Q_\text{wall}\)

\(Q_\text{total}\) = 5641.03 W + 785714.29 W = 791355.32 W

Therefore, the rate of heat loss per meter length of the pipe is approximately 791355.32 Watts.

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If a baseball has a negative velocity and a negative acceleration, its speed is decreasing.

Velocity is a vector quantity that includes both magnitude (speed) and direction. In this case, the negative velocity indicates that the baseball is moving in the opposite direction of a chosen positive reference direction. Acceleration, on the other hand, represents the rate of change of velocity and also includes both magnitude and direction.

When the velocity and acceleration have the same sign (both negative in this case), it means that the baseball is slowing down. This is because the acceleration is acting in the opposite direction to the velocity, which results in a decrease in speed. Therefore, the speed of the baseball is decreasing.

Answer:

I think the answer is - A force can be a push or pull. (I'm not sure if I'm correct)

a force can be a pull or push

The anticipated time when he will appear again is 5:17 pm

The given parameters;

your speed, \(V_a\) = 3 m/s

the runner's speed, \(V_b\) = 14 m/s

the diameter of the lake, d = 2 miles = 3218.69 meters

The circumference of the lake is calculated as;

\(C = \pi d\\\\C = 3.142 \times 3218.69 = 10,113.12 \ m\)

Apply concept of relative velocity to determine the time, in which he will appear again.

By the time he appears again;

the distance you moved + distance he moved = circumference of the circle

\(V_at + V_bt = 10, 113.12\\\\(V_a + V_b)t = 10,113.12\\\\(3 + 14) t = 10,113.12\\\\17t = 10,113.12\\\\t = \frac{10,113.12}{17} \\\\t = 594.89 \ s = 9.92 \ \min \ \approx 10 \ \min\)

\(t\ \approx \ \ 5:17 \ pm\)

Thus, the anticipated time when he will appear again is 5:17 pm

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the time interval required for the proton to travel 4.00 cm horizontally is 8.33 * 10^-8 s, Vertical Displacement = (1/2) * (8.80 * 10^3 N/C / 1.67 * 10^-27 kg) * (8.33 * 10^-8 s)^2

(a) To find the time interval required for the proton to travel 4.00 cm horizontally, we can use the formula:

Time = Distance / Velocity

The distance is given as 4.00 cm, which is equivalent to 0.04 m. The velocity of the proton is given as 4.80 * 10^5 m/s. Substituting these values into the formula, we have:

Time = 0.04 m / (4.80 * 10^5 m/s) = 8.33 * 10^-8 s

Therefore, the time interval required for the proton to travel 4.00 cm horizontally is 8.33 * 10^-8 s.

(b) Since the proton is moving in a uniform vertical electric field, there will be a vertical displacement. The vertical displacement can be calculated using the formula:

Vertical Displacement = (1/2) * acceleration * time^2

In this case, the acceleration is the electric field magnitude divided by the proton's mass. The electric field magnitude is given as 8.80 * 10^3 N/C. The proton's mass is approximately 1.67 * 10^-27 kg. The time interval is 8.33 * 10^-8 s. Substituting these values into the formula, we have:

Vertical Displacement = (1/2) * (8.80 * 10^3 N/C / 1.67 * 10^-27 kg) * (8.33 * 10^-8 s)^2

Calculating this value gives us the vertical displacement of the proton.

(c) After the proton has traveled 4.00 cm horizontally, its horizontal velocity remains unchanged. Therefore, the horizontal component of its velocity is still 4.80 * 10^5 m/s.

The vertical component of its velocity can be calculated using the formula:

Vertical Velocity = acceleration * time

The acceleration is the electric field magnitude divided by the proton's mass. The time interval is 8.33 * 10^-8 s. Substituting these values into the formula, we can find the vertical component of the proton's velocity.

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Answer:

14°F = 263.15 K

31°F = 272.594 K

71°F = 294.817 K

35°F = 274.817 K

Explanation:

Use the formula 273.15 + ((°F–32)•5)/9

Answer:

velocity- the speed of something in a given direction.

Explanation:

acceleration- increase in the rate or speed of something.

When a person in stage 1 sleep suddenly awakens with a start, psychologists say they have experienced a hyp_nic j_erk. It is also called sleep starts.

A hyp_nic j_erk is a sleep state referred to as the sleep starts, which is associated with contractions of the body.

A hyp_nic j_erk is associated with muscle contractions that occur just as a person is falling asleep.

The muscle contractions during are sudden, strong and involuntary muscle contractions.

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Answer:

B

Explanation:

Explanation:

improved saftey for children

Answer:

D. Improved safety for children

Explanation:

Answer:

\(28\; {\rm kg \cdot m\cdot s^{-1}}\).

Explanation:

The impulse on an object is equal to the change in momentum.

By the conservation of momentum, the total momentum of this system will stay unchanged. In other words, the sum of the change in the momentum of the wall and the projectile will be \(0\):

\(\Delta p(\text{projectile}) + \Delta p(\text{wall}) = 0\).

Rearrange to obtain:

\(\Delta p(\text{wall}) = -\Delta p(\text{projectile})\).

The change in the momentum of the projectile is:

\(\begin{aligned} & \Delta p(\text{projectile}) \\ &= m(\text{projectile}) \, \Delta v(\text{projectile}) \\ &= (2.0\; {\rm kg})\, ((8.0 - (-6.0))\; {\rm m\cdot s^{-1}}) \\ &= 28\; {\rm kg\cdot m\cdot s^{-1}} \end{aligned}\).

The change in the momentum of the wall would then be:

\(\Delta p(\text{wall}) = -\Delta p(\text{projectile}) = -28\; {\rm kg\cdot m\cdot s^{-1}}\).

Thus, the magnitude of the impulse on the wall would be \(28\; {\rm kg\cdot m\cdot s^{-1}}\).

The angle between the two forces is 91 degrees

In order to find the angle between two forces, we have to use the following formula: cos θ= (F₁.F₂)/(|F₁||F₂|)

Where F1 and F2 are the magnitudes of the two given forces, θ is the angle between the two forces and F1.F2 is the dot product of the two forces.

We have given two forces of 574 N and 577 N and the resultant force of 1142 N.

We can solve for the angle between the two forces as follows;

Resultant force = √(574² + 577² + 2×574×577×cos θ)1142

                          = √(574² + 577² + 2×574×577×cos θ)

cos θ = [(1142² - 574² - 577²)/2×574×577]

cos θ = -0.048

We know that cosine is negative in the second quadrant, so we need to find the angle in the second quadrant.cos⁻¹(-0.048) = 91.4°

Thus, the angle between the two forces is 91 degrees (rounded to the nearest integer as needed) which can also be written as π/2 radians.

The forces have been provided to us as 574 N and 577 N, and the resultant force is 1142 N.

We can now use the formula cos θ= (F₁.F₂)/(|F₁||F₂|) to calculate the angle between the two forces.

We know that the magnitude of the resultant force is the sum of the magnitudes of the two given forces.

Using this knowledge, we can find the angle between the two forces by first substituting the given values in the formula, and then solving for the angle.

In this case, cos θ is found to be -0.048. Since the cosine function is negative in the second quadrant, we can find the angle in the second quadrant by taking the inverse cosine of -0.048.

The result of this calculation is 91.4 degrees.

Therefore, π/2 radians or 91 degrees separate the two opposing forces. (rounded to the nearest integer as needed)

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Our galaxy's disk is heavily covered in dust, which tends to obstruct the light from supernova explosions in our galaxy's more distant regions.

It's a result of length, dust, and bad luck. Numerous astronomers from all over the world have remarked that the last supernova to be documented in any form of trustworthy source occurred in 1604.

It is noticed that a star with a mass similar to the Sun that is on the verge of dying is surrounded by a significant amount of dust and gas, which is stuff it has released during the last stages of its existence.

What is galaxy?

A galaxy is a vast assemblage of gas, dust, and countless stars and stars and planets. Gravity is what holds a galaxy around each other. A supermassive black hole also resides in the center of our galaxy, the Milky Way. You see additional stars in the Milky Way as you glance at the night sky for stars.

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Our galaxy's disk is heavily covered in dust, which tends to obstruct the light from supernova explosions in our galaxy's more distant regions.

What is galaxy?

A galaxy is a vast assemblage of gas, dust, and countless stars and stars and planets. Gravity is what holds a galaxy around each other. A supermassive black hole also resides in the center of our galaxy, the Milky Way. You see additional stars in the Milky Way as you glance at the night sky for stars.

It's a result of length, dust, and bad luck. Numerous astronomers from all over the world have remarked that the last supernova to be documented in any form of trustworthy source occurred in 1604. It is noticed that a star with a mass similar to the Sun that is on the verge of dying is surrounded by a significant amount of dust and gas, which is stuff it has released during the last stages of its existence.

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silicon conducts electricity under some conditions but not under other conditions.  Silicon is a metalloid.

Chemical elements that fall into the metal and non-metal categories in terms of their physical and chemical characteristics are known as metalloids. The seven most popular metalloids are boron, germanium, silicon, antimony, arsenic, tellurium, and pollanium.

It should be noted that all seven of these elements may be found on the conventional periodic table in the p-diagonal block's section, which runs from astatine (located in the upper left) to boron (which is placed on the lower right). The metalloids are located below the line in some periodic tables that separates metals and nonmetals.

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The overall efficiency of this steam power plant which consumes coal at a rate of 60 tons/h and provides a power output of 170 MW is 34 %

Win = m Q

Win = Power input

m = Consumption rate

Q = Heating value

Q = 30000 kj / kg

m = 60 tons / h = 60 * ( 1000 / 3600 )

m = 16.67 kg / s

Win = 16.67 * 30000

Win = 500000 KW

Win = 500 MW

η = Wout / Win * 100

η = Efficiency

Wout = Power output

Wout = 170 MW

η = 170 / 500 * 100

η = 0.34 * 100

η = 34 %

Therefore, the overall efficiency of this plant is 34 %

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Electricity is defined as the flow of electrical current through a conductor.

A fundamental type of energy that is produced by the presence and movement of electric charge is electricity. The passage of electrons or other charged particles across a conductor, like a wire, is what defines the phenomena. It includes the creation, transmission, and use of electric energy, as well as the full field of electric phenomena.

Therefore,

Electricity is defined as the flow of electrical current through a conductor.

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Answer:

More than 60% of the total refractive power of the eye is attributed to the cornea making it vital to focusing light onto the retina for visual processing 115.

Explanation:

For optimal vision, the cornea must efficiently transmit incident light by maintaining its transparency.

Answer: The correct statement is D (the sodium azide breaks down into sodium and nitrogen gas).

Explanation:

A chemical change is an irreversible chemical reaction in which new substances are usually formed. It is also defined as chemical decomposition of a substance leading formation of two or more other substances. A typical example is in the break down or decomposition of sodium azide into sodium metal and nitrogen gas. This is seen in the chemical balanced equation below:

2 NaN3 --> 2 Na + 3 N2

Sodium azide ( also called Sodium trinitride) is a chemical compound that is in built into automobile air bags which upon collision is being triggered to decompose. This leads to the generation of sodium and nitrogen gas that fills the air bag. This aid ls in reducing the impact of the collision and absorbs the forward-moving energy of the occupant.

Answer:

The answer is D Im doing the Exam noe

Explanation:

Hope this help :)

Red Riot out

The electric field strength at a distance of 1.20 m on the x-axis is -1.5 × 10⁴ N/C.

To find the electric field strength at a distance 1.20 m on the x-axis, we can use Coulomb's law:

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

where F is the force between two charges, q1 and q2 are the magnitudes of the charges, r is the distance between the charges, and k is the Coulomb constant.For a single point charge q located at the origin of the x-axis, the electric field E at a distance r is given by:

\($$E=\frac{kq}{r^2}$$\)  where k is the Coulomb constant.

So, let's calculate the electric field due to each charge separately and then add them up:

For the +2.0 C charge at x = 0, the electric field at a distance of 1.20 m is:\($$E_1=\frac{kq_1}{r^2}=\frac{(9\times10^9)(2.0)}{(1.2)^2}N/C$$\)

For the -3.0 C charge at x = 0.40 m, the electric field at a distance of 1.20 m is:

\($$E_2=\frac{kq_2}{r^2}\)

\(=\frac{(9\times10^9)(-3.0)}{(1.20-0.40)^2}N/C$$\)

The negative sign indicates that the direction of the electric field is opposite to that of the positive charge at x = 0.

To find the net electric field, we add the two electric fields\(:$$E_{net}=E_1+E_2$$\)

Substituting the values of E1 and E2:

\($$E_{net}=\frac{(9\times10^9)(2.0)}{(1.2)^2}-\frac{(9\times10^9)(3.0)}{(0.8)^2}N/C$$E\)

net comes out to be -1.5×10⁴ N/C.

Therefore, the electric field strength at a distance of 1.20 m on the x-axis is -1.5 × 10⁴ N/C.

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Answer:

A: By adding grease to the wheel of the pulley

Explanation:

We know that it is not B (By decreasing the size of the pulley) because it would just make it harder for the student to do that task, by increasing the amount of force needed to complete the task. And we know it is not C (By increasing the length of the rope) because that would just give more rope to use, and not affect the amount of force needed. This leaves option A as the answer.

Pls mark Brianliest with the crown.

In this model, the reaction favours the reactants and the equilibrium is to the left.

It is argued that an equilibrium is stable when tiny, environmentally induced displacements from it result in forces that have a tendency to oppose the displacement and bring the body or particle back to the equilibrium state. A brick placed flat on the ground or a weight held by a spring are two examples.

When a reaction is said to have "reached equilibrium," it suggests the rate of forward reaction and the rate of reversal are now equal. Due to the rate of forward reactions being equal to the reaction's opposite rate, the quantity or concentrations of both reactants and outcomes remain unchanged.

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The pace at which electrons flow past a location in a complete electrical circuit is defined as current.

In a circuit, the maximum alternating voltage and current are 400 V and 20 A, respectively. The alternating values have a frequency of 50 hertz and are sinusoidal. Current is the rate at which a charge moves through a circuit point. The highest current might be drawn while the external resistance is zero. Electromotive force, abbreviated E or emf, is the amount of energy per unit electric charge delivered by an energy source such as a generator or a battery. As the gadget works on the electric charge being transported inside itself, energy is changed from one form to another in the generator or battery.

Electromotive force (also electroosmotic, abbreviated emf, indicated or) is an energy transfer to an electric circuit per unit of electric charge, measured in volts, in electromagnetism and electronics. Electrical transducers generate an emf by transforming various types of energy into electrical energy.

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Answer

Explanation

Explanation:

\(power = \frac{work}{time} \)

Given

POWER=1000 W

TIME=5s

WORK=POWER×TIME

=1000×5

5×10³

OPTION C

Answer: space probe

Explanation: Kracc Bacc Amogus big fat sussy baka burger amogus Among Us big sussy big mac sussy sus Amogus Among us big fat sussy baka burger fard big huge mega Big sussy Among US

Space telescope can  observe electromagnetic radiation and avoid light pollution to allow for exploration beyond our solar system.

A telescope in space used to observe celestial objects is known as a space telescope or space observatory.

Space telescopes do not experience the light pollution that ground-based observatories do, nor do they experience the filtering and distortion (scintillation) of the electromagnetic radiation they detect. The two main categories of satellites are those that map the entire sky (astronomical surveys) and those that concentrate on certain astronomical objects or regions of the sky and beyond.

Space telescopes are separate from Earth imaging satellites, which are used for weather analysis, espionage, and other sorts of information gathering. These satellites look toward Earth for satellite imaging.

Thus, space telescope can easily overcome light pollution and can observe electromagnetic radiation which allow it exploring beyond our solar system.

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No, Samuel hasn't done work, Since the door doesn't move.

Work is said to be done when an applied force moves an object over a given distance.

W = Fd

where;

Since the door doesn't move, we can conclude that Samuel hasn't done work.

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E = 1.024 10⁻⁷ N/C is the size of an electric field where a proton experiences an electric force that is equal to its weight.

The term "electric field" refers to the physical field that surrounds electrically charged particles and pulls or attracts all other charged particles nearby. Additionally, it describes the physical environment of a system of charged particles.

The answer to the question is that the electric force's strength is proportional to its weight.

F(q) = Weight.

F(q) = E × q

where;

E = electric field magnitude

q = charge on an electron.

Therefore;

E × q = m × g

E = (1.67 × 10^-27 × 9.81)/1.60× 10^-19

E = 1.024 × 10^-7 N/C

Therefore, the magnitude of the electric field is E = 1.024 10⁻⁷ N/C.

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Answer:

you need to multiply them and then you have your answer eg = 810 × 6.7 = 5427kg

Resultant force would accelerate an 810 kg mass at 6.7 m/s² 5427 N

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

Given in the question,

Acceleration (a) = 6.7 m/s²

Mass (m) = 810 kg

Force (F) = ?

We know

F = M * a

F = 810 * 6.7

F = 5427 N

Resultant force would accelerate an 810 kg mass at 6.7 m/s² 5427 N

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