Comparing the speed of Sound in hydragen to the Speed of sound in Nitrogen at the same temporature. (a) Hydrogen is higher (c) the same (b) Nitrogen is higher (d) Need more info. (ia) Velority Profiles are shown in the diagram at several lorations for water flowing, in a arcular fipe. The vorticity in A is (a) Zers since velocity is uniform. (b) Non zero since no slip at pipe walls (c) Zero eince velocity is uni directional (d) Non-zero since speading up e) Zero since velocity is constant. (4) Loro since top of fluid is moving faster thon buttom.

Answer:

A

Explanation:

Answer:

B is the answer!!

Explanation:

Adiabatic cooling refers to the cooling of a parcel of air as a result of its expansion due to a decrease in pressure or an increase in volume. This process occurs without the addition or subtraction of heat from the environment.

As the parcel of air rises in the atmosphere, it encounters lower atmospheric pressure, causing it to expand. The expansion leads to a decrease in temperature within the parcel, resulting in adiabatic cooling.

Adiabatic cooling plays a crucial role in the formation of atmospheric clouds. When warm, moist air rises, it undergoes adiabatic cooling due to expansion. As the air cools, it reaches its dew point, where the air becomes saturated with water vapor, leading to the formation of tiny water droplets or ice crystals. These tiny particles then condense on aerosols, such as dust or pollutants, to form visible clouds.

Meteorologists widely acknowledge that adiabatic cooling is a fundamental factor in cloud formation. Understanding the principles of adiabatic cooling helps predict cloud types, atmospheric stability, and weather patterns. It is essential for meteorologists to consider adiabatic processes to accurately forecast and study the behavior of clouds, precipitation, and other atmospheric phenomena.

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Answer:

9.8kW

Explanation:

Given data

Mass= 60kg

Hieght= 4m

Time= 4.2seconds

We know that the energy possessed is given as

PE=mgh

PE=60*9.81*4

PE= 2354.4 Joulse

Also, the expression for power is

Power=Energy*Time

Power= 2354.4*4.2

Power=9888.48 watt

Power= 9.8kW

Answer:

false

Explanation:

the time period is for a whole cycle of the wave, so peak-to-peak on an oscilloscope trace.

Laccolith magma (molten rock) rising through the Earth's crust begins to spread out horizontally, prying aside the host rock strata.

Laccoliths are not unusual in the Pine Valley Mountain desert location close to St. George, Utah. The stress of the magma is high enough that the overlying strata are compelled upward, giving the laccolith its dome-like form.

A laccolith is a frame of intrusive rock with a dome-shaped top surface and a degree base, fed through a conduit from under. A laccolith bureaucracy when magma (molten rock) rising thru the Earth's crust starts to unfold out horizontally, prying aside the host rock strata. The stress of the magma is excessive enough that the overlying strata are pressured upward, giving the laccolith its dome-like form.

A laccolith is a type of igneous intrusion, shaped when magma forces its manner upwards via the Earth's crust however cools and solidifies before attaining the surface. Laccoliths are outstanding from other igneous intrusions by way of their dome-shaped upper floor and level base.

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Answer:

cause you feet block the air

The type of figurative language the poet uses to describe the way a police officer acts as an every day hero in this stanza is metaphor. option(c)

The metaphor compares a police officer to both a wall and a net, both of which serve to protect and support those around them. By using this metaphor, the poet emphasizes the important role that police officers play in our lives and the trust that we place in them to keep us safe and provide assistance when needed. The metaphor also highlights the selflessness of police officers, who are willing to put themselves in harm's way to protect others. Like a wall or a net, they act as a barrier between danger and those they serve, absorbing the impact and preventing harm from reaching us.

Overall, the use of metaphor in this stanza helps to convey the importance and value of police officers in our communities, and their essential role in serving and protecting us. option(c)

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Acceleration will be constant while speed will not. The third option describes the motion.

Force can simply be defined as a pull or push. It is the product of mass and velocity and it is measured in Newton.

If a wooden block resting on a table is given a push, the block of mass m will accelerate with acceleration a and stop due to friction

One of the following options that describe the motion of the block a moment after the push is the third option. That is, accelerates at a positive, constant rate.

Since the block will be accelerating, the speed of the block can never be constant.

Therefore, accelerates at a positive, constant rate is the option that describe the motion of the block a moment after the push.

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Answer:

\(V_y = 16.44\ m/s\)

\(V_y = 7.32\ m/s\)

Explanation:

Given

\(\theta = 24\)

\(Velocity\ (V) = 18m/s\)

Required

Determine the vertical and horizontal components

The vertical (Vy) and horizontal (Vx) components is calculated as thus:

\(V_x = Vcos\theta\)

\(V_y = Vsin\theta\)

Calculating Vertical Components:

\(V_y = Vsin\theta\)

\(V_y = 18 * sin24\)

\(V_y = 18 * 0.40673664307\)

\(V_y = 7.32125957526\)

\(V_y = 7.32\ m/s\) --- Approximated

Calculating Horizontal Components:

\(V_x = Vcos\theta\)

\(V_x = 18 * cos24\)

\(V_x = 18 * 0.91354545764\)

\(V_x = 16.4438182375\)

\(V_x = 16.44\ m/s\) --- Approximated

Answer:

y e s

Explanation:

If a child tries to stand on the right hand end of the plank. the maximum mass of the child that can stand on the right-hand end of the plank without tipping it over is 60 kg.

In order for the plank to remain at rest, the torques on the plank must balance. The torque due to the weight of the plank can be calculated as:

τ_plank = (1/2)Mg*L

where g is the acceleration due to gravity.

Since the sawhorses are located at equal distances from the center of the plank, the torque due to the weight of the plank is evenly distributed between them, and each sawhorse must support half of the weight of the plank:

F_plank = (1/2)Mg

where F_plank is the force that each sawhorse must exert on the plank.

When the child stands on the right-hand end of the plank, they will create an additional torque on the plank. The magnitude of this torque can be calculated as:

τ_child = F_child * (L/2)

where F_child is the force that the child exerts on the plank, and L/2 is the distance from the child to the center of the plank.

For the plank to remain at rest, the torque due to the child's weight must be balanced by the torque due to the sawhorse forces:

τ_child = τ_sawhorses

F_child * (L/2) = F_plank * D

Substituting the expressions for F_plank and τ_plank, we get:

F_child * (L/2) = (1/2)Mg*D

Solving for the maximum mass of the child, we get:

M_child = 2*F_child/g

M_child = 2*(L/2)F_plank/(gD)

M_child = LF_plank/(gD)

Substituting the values for L, M, D, and g, we get:

M_child = (6 m)(1/2)(90 kg9.81 m/s^2)/(1.5 m9.81 m/s^2)

M_child = 180/3

M_child = 60 kg

Therefore, the maximum mass of the child that can stand on the right-hand end of the plank without tipping it over is 60 kg.

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According to the second law of Newton, the acceleration is directly proportional to the net force acting on the object:

From this formula, we can also see that the acceleration is inversely proportional to the mass: For the same force, if the mass increases, the acceleration decreases.

Therefore the correct option is d.

Answer:

Power your home with renewable energy.

Weatherize, weatherize, weatherize.

Invest in energy-efficient appliances.

Reduce water waste.

Actually eat the food you buy—and make less of it meat.

Explanation:

Answer:

1/f = 1/i + 1/o      thin lens equation

1/i = 1/f - 1/o

i =  o * f / ( o - f) = 50 * (-20) / (50 - (-20)) = -14.3 cm

The final image is  erect and 14.3 cm behind the curved surface

M = -o / i = 14.3 / 50 = .29      magnificaton of object

S = .29 * 25 cm = 7.1 cm       appearance of bird in mirror (height)

Answer:

516m/s^2

Explanation:

Given the following :

Height of aircraft = 10000m

Acceleration due to gravity (g) = 10m/s^2

Angle of projection (θ) = 60°

Height of aircraft = maximum height

Maximum height of a projectile:

H = (u^2sin^2θ) / 2g

Where H = height

u = initial velocity

10000 = [(usinθ)^2] / 2g

10000 = [(u * sin60°) ^2] / 2*10

10000 = (0.866 * u)^2 / 20

20 * 10000 = 0.749956 * u^2

200000 = 0.749956u^2

u^2 = (200000/0.749956)

u^2 = 266,682.31

u = √266,682.31

u = 516.41292

Initial velocity (u) = 516m/s^2

To calculate the Taguchi quality cost, we need to multiply the length of each piece by the Taguchi parameter T, and then sum up the costs.

Given:

Length of the first metal rod = 49.19 cm

Length of the second metal rod = 49.93 cm

a) Taguchi parameter T:

Since we don't have the specific value of T, we cannot calculate it.

b) Taguchi Quality Cost of the second metal rod:

Taguchi Quality Cost = Length of the second metal rod * Taguchi parameter T

c) Taguchi Quality Cost of the first metal rod:

Taguchi Quality Cost = Length of the first metal rod * Taguchi parameter T

d) Total Taguchi Quality Cost of the two units:

Total Taguchi Quality Cost = Taguchi Quality Cost of the first metal rod + Taguchi Quality Cost of the second metal rod

Since we don't have the Taguchi parameter T, we cannot calculate the specific values for parts (b), (c), and (d).

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Answer:

I think milligram is the correct answer.

Answer:

D. milliliter

Explanation:

Took it on usatestprep

The correct statement is "I only." One of the pre-loss objectives of risk managers is to meet any legal requirements the company may face.

The use of fire-resistive materials when constructing a building is an example of risk control. This is because risk control involves taking proactive steps to reduce the likelihood or severity of loss when an incident occurs. Fire-resistive materials are designed to withstand fire, and they are meant to slow down or contain the spread of fire in a building, thus reducing the risk of loss or damage.

In risk management, risk control is one of the four basic methods used to handle or mitigate risks. The other methods include risk transfer, risk avoidance, and risk retention. Risk transfer involves shifting the risk of loss to another party, such as through insurance or contract agreements. Risk avoidance involves eliminating the activity that could lead to loss or harm, while risk retention involves accepting the risk and dealing with any losses that may occur. As for the second question, the correct statement is "I only."

One of the pre-loss objectives of risk managers is to identify, assess, and evaluate potential risks that could negatively affect an organization. They also work to develop strategies to manage these risks and to ensure that the company is meeting any legal or regulatory requirements. On the other hand, one of the post-loss objectives of risk managers is to minimize the impact of losses that occur. They work to evaluate the effectiveness of the company's risk management strategies and to ensure that the company recovers from the loss as quickly as possible. Maximizing the risk manager's wealth is not a post-loss objective of risk managers.

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Answer:

2nd one

Explanation:

highest frequency shortest wavelength

Answer:

highest frequency shortest wavelength

The light oscillates electrons which then absorbs some of the energy and reemit it thereby causing a delay.

This is defined as a subatomic particle which has a negative charge. In the glass of water the light oscillates the electrons which absorbs some energy.

The re-emission is what slows light when it passes from air into glass or water.

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The maximum friction pressure that can act at the block is given with the aid of fax = muS*N, in which muS is the coefficient of static friction.

In physics, pressure is a power that could alternate the movement of an object. A force can motivate an item with mass to alternate its velocity, i.e, to boost up pressure also can be defined intuitively as a push or a pull. A pressure has both significance and path, making it a vector quantity.

Exceptional kinds of pressure are contact forces and non-forces. a few examples of pressure are Nuclear force, gravitational force, Frictional pressure, magnetic pressure, electrostatic force, spring pressure, and so on.

In physics, a force is a push or pull between gadgets. it is called an interplay because if one object acts on another, its action is matched by using a response from the alternative item. This idea is called Newton's 0.33 regulation, wherein movement and reaction are identical and opposite.

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Radiation that is invisible to the human eye and has low energy is typically found in the region of the electromagnetic spectrum is the infrared (IR) spectrum.

The electromagnetic spectrum encompasses a wide range of wavelengths and frequencies, with different regions corresponding to different types of radiation. The infrared spectrum lies just beyond the visible spectrum, with longer wavelengths and lower energy than visible light.

Infrared radiation is not detectable by the human eye, as it falls outside the range of wavelengths that our eyes are sensitive to. However, many devices, such as thermal cameras and infrared sensors, can detect and measure infrared radiation.

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There are several common properties shared by Galilean (Newtonian) and Special Relativity, including the principle of relativity, the constancy of the speed of light, and the concept of time dilation.

The principle of relativity states that the laws of physics are the same for all observers in uniform motion relative to one another. This principle is fundamental to both Galilean and Special Relativity.

Additionally, both theories acknowledge that the speed of light is constant and independent of the motion of its source. Finally, both theories also predict time dilation, where time appears to pass more slowly in frames of reference that are moving relative to each other.

While the predictions of these theories differ in some respects, they share several important properties that are fundamental to our understanding of the nature of space, time, and motion.

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Answer:

 U = 25 J

Explanation:

The energy in a set of charges is given by

          U = \(k \sum \frac{q_i}{r_i}\)

in this case we have three charges of equal magnitude

          q = q₁ = q₂ = q₃

with the configuration of an equilateral triangle all distances are worth

          d = a

          U = k ( \(\frac{q_1q_2}{ r_1_2 } + \frac{q_1q_3}{r_1_3} + \frac{q_2q_3}{r_2_3}\) )

we substitute

           15 = k q² (3 / a)

            k q² /a = 5

For the second configuration a load is moved to the measured point of the other two

          d₁₃ = a

The distance to charge 2 that is at the midpoint of the other two is

          d₁₂ = d₂₃ = a / 2

           U = k (\frac{q_1q_2}{ r_1_2 } + \frac{q_1q_3}{r_1_3} + \frac{q_2q_3}{r_2_3})

            U = k q² (  \(\frac{2}{a} + \frac{1}{a} + \frac{2}{a}\) )

            U = (kq² /a) 5

substituting

            U = 5 5

            U = 25 J

Answer:

the answer is i dont know

Explanation: The explanation is i dont know

Answer:

Explanation:

His top speed is a blip that occurs for less than the full time he was out. Below is a graph showing what he did from 1 o'clock to 9. He was walking from 1 to the point where starts walking faster and then back down again to 2. The line at 2 is longer than the triangular shape that shows where he speeded up. Then he went back down to 2 and continued at that speed until 9.

Obviously he spent more time at 2 than he did at 4 and therefore his average speed will less than the 4 speed.

Remember that average speed = total distance / total time.

Answer:

hang an empty slotted mass carrier from the lower end and measure the new length of the spring. keep adding more slotted masses, measuring the new length each time.

Explanation: Hope this helps :)

We investigate Hooke's law by hanging an empty slotted mass carrier from the lower end and measuring the new length of the spring.

be the extension of the spring: that is, the difference between the spring's actual length and its unstretched length. can also be used as a coordinate to determine the instantaneous horizontal displacement of the mass. Figure 1: Mass on a spring.

Since the force exerted by the spring is always directed towards its Figure 5.3 Two forces act on a ball that is suspended by a spring: the weight W, the gravitational force exerted by the Earth, and Spring, the force exerted by the spring.

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