A condition that lifts a parcel of air to form cumulus clouds is
Answer
a. differential heating.
b. mountain barriers.
c. a cold front.
d. All of the above.

Answer:

When measurements are close to true

value they are called to be accurate

Explanation:

Answer:

A) accurate

Explanation:

Accuracy refers to how close a measurement is to the true value of what is being measured.

Answer:

The position where an earthquake begins below the earths surface is called the hypo center. The point directly above the hypo center is called the epicenter.

Explanation:

www.usga.gov | United States of America Department of Geological Surveys.

Answer:

Lithification is the answer.

Answer:

An object could be determined as solid:

-It doesn't change shape easily.

-when lots of heat applied till melting point, it would melt or thaw (basically turn into liquid).

-turn to pieces or bent when enough force applied to it.

-the molecules attached with each other by strong forces, creating strong bonds.

An object could be determined as liquid:

-It changes shaped based on the container.

-when lots of heat applied till boiling point, it would vaporize

-the molecules have weak bonds, creating a lot of spaces.

-when heat extracted from the liquid till freezing point, it would freeze/hardened (turn into solid)

An object could be determined as gas:

-it doesn't have any shape or form.

-if fills in the container.

-if lots of heat applied, its molecules are going to move, vibrate,and transist faster; increasing pressure and volume.

-The molecules have very weak bonds, creating spacious space.

-when the heat are being extracted till certain freezing point, it is going to turn into liquid, then solid.

Answer:

Gravity is one major force that creates tides. In 1687, Sir Isaac Newton explained that ocean tides result from the gravitational attraction of the sun and moon on the oceans of the earth (Sumich, J.L., 1996).

Explanation:

I hope this helps.

Answer: gravity is one major force that creates tides

Explanation:

in 1687, sir Isaac newton explained that ocean tides result from the gravitational attraction of the sun and the moon on the oceans of the earth

Answer:

The quadratic function models the path of the rocket. When we substitute an x value, we can determine the height in feet of the rocket.

To determine the height it was launched from, we would look at the y-intercept. This represents the starting value, as time = 0 in this point (cannot have negative time).

To determine how far the rocket traveled, we would look at the positive x-intercept of the expression. At this point, height = 0, so we can see the distance from start to finish of the rocket.

To determine the greatest height achieve, we would look at the vertex of the parabola generated from the given function. Using (-b/a, f(-b/a)), we can determine the greatest height achieved.

Answer:

4

Explanation:

because amplitude of a sound wave is related to loudness of the sound, so the higher the amplitude, the louder the sound

hope this helps

Resistance is a property that determines the amount of current for a given source voltage.

A greater resistance results in a lower current whereas a smaller resistance allows a higher current given that voltage is constant.

Resistor is a device and resistance is a property.

Battery is a device that controls the current in a current.

Therefore, the correct answer is

Resistance, battery

The swan's velocity relative to the ground, when pointing due south with a speed of 17.5 m/s and wind blowing from the east at 12.5 m/s, is approximately 21.49 m/s at an angle of 35.74 degrees east of south. When the swan wishes to travel south, its velocity relative to the ground matches the wind speed of 12.5 m/s in the opposite direction. After traveling due south for 8.5 hours, the swan's displacement is approximately 106.25 meters.

a) If the swan is pointing due south and flying at a speed of 17.5 m/s while there is a wind blowing from the east at 12.5 m/s, we can calculate the magnitude and direction of its velocity relative to the ground using vector addition.

To find the magnitude, we can use the Pythagorean theorem:

Magnitude = √((17.5 m/s)^2 + (12.5 m/s)^2)

Magnitude = √(306.25 + 156.25)

Magnitude ≈ √462.5 ≈ 21.49 m/s

To find the direction, we can use trigonometry. The wind blowing from the east will create an angle with the south direction. Let's call this angle θ.

tan(θ) = (12.5 m/s) / (17.5 m/s)

θ ≈ tan^(-1)(0.714)

θ ≈ 35.74 degrees

Therefore, the magnitude of the swan's velocity relative to the ground is approximately 21.49 m/s, and its direction is approximately 35.74 degrees east of south.

b) If the swan wishes to travel south, it needs to counteract the effect of the wind blowing from the east. In this case, the swan's velocity relative to the ground needs to be equal to the wind velocity in the opposite direction.

Magnitude = 12.5 m/s (same as the wind speed)

Direction = 180 degrees (opposite direction of the wind)

Therefore, the magnitude of the swan's velocity relative to the ground would be 12.5 m/s, and its direction would be due south.

c) If the swan travels due south as in part b for 8.5 hours, we can calculate its displacement by multiplying the magnitude of its velocity relative to the ground by the time traveled.

Displacement = Magnitude * Time

Displacement = 12.5 m/s * 8.5 hours

Displacement ≈ 106.25 m

Therefore, the swan's displacement after 8.5 hours of traveling due south would be approximately 106.25 meters.

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The swan maintains its speed of 17.5m/s flying due south, unaffected by the eastward wind. If it maintains that speed for 8.5 hours, you need to multiply the speed by the total seconds in 8.5 hours to find its overall displacement.

Given the swan's speed and the wind direction, we can address each part of your question as follows:

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The body's response to a cold involves various immune cells and processes. Here is a simplified flow chart depicting the step-by-step response:

This flow chart demonstrates the coordinated response of B cells, helper T cells, macrophages, mucus production, lymph, cytokines, receptor proteins, antibodies, memory cells, and plasma cells in combating a cold virus and eventually eliminating it from the body.

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Answer:

In series

Explanation:

Ammeter is used in electric circuits to measure the amount electric current that passes through the circuit.

Now, as a rule, this ammeter is always connected in series with the wires in the circuit where the current is being measured so that sufficient current can pass through it.

To determine the earliest start and finish times, latest start and finish times, and slack for each activity, we can utilize the network diagram and use forward and backward pass calculation. We can determine the critical path by identifying the longest path in the network diagram where there is no slack. The project duration is the length of the critical path.

Here is the network diagram for the given project: \(\small{\text{(Please see the attached image for the network diagram.)}}\)The calculations for the earliest start and finish times, latest start and finish times, and slack for each activity are shown below:|Activity Duration (Months)|Predecessor|ES|EF|LS|LF|Slack|
|---|---|---|---|---|---|---|---|
|A|2|-|0|2|0|2|0|
|B|3|-|0|3|2|5|2|
|C|5|A|2|7|2|7|0|
|D|4|B|3|7|5|9|2|
|E|3|B|3|6|5|8|2|
|F|6|C, E|7|13|7|13|0|
|G|5|D, F|9|14|13|18|4|The critical path is A-C-F-G, and its length is 13 months.

This means that any delay on these activities will delay the project completion date. Here is the calculation of the critical path: A (2) - C (5) - F (6) - G (5) = 13 months.

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Answer:

Therefore, Train A is faster with 50km/h and a 5km/h difference

Explanation:

train A

150km/3h = 50km/h

train B

180km/4h = 45km/h

Heya!!

For calculate frequency, lets applicate formula:

                                                       \(\boxed{f=v/\lambda}\)

                                                   Δ   Being   Δ

                                               f = Frequency = ?

                                           v = Velocity = 144 m/s

                                          \(\lambda\) = Wavelenght = 0,5 m

⇒ Let's replace according the formula:

\(\boxed{f = 144\ m/s / 0,5\ m }\)

⇒ Resolving

\(\boxed{f = 288\ Hz}\)

Result:

The frequency of that wave is 288 Hertz

Good Luck!!

Answer:

K Shut up bro

Explanation:

The spectral lines are spectra in which only a certain wavelength of light is emitted. spectrum can be observed from distant stellar objects.

The definite wavelength spectral lines can be observed from different elements.

Comparing definite wavelengths of emission spectra and spectra of distant stellar objects, we can determine the motion of the stellar body.

If the body is moving, then the Doppler effect plays an effective role by altering the wavelengths of the emission spectra.

Two cases will take place:

First: If the body is moving away, then the wavelength of emission spectra will shift toward red.

Second: If the body is moving towards, then the wavelength of emission spectra will shift toward the blue end.

This phenomenon is only observed in the case of radial movement of the body.

In the case of tangential motion, the Doppler effect won't play a role. so we observe no change in spectral lines.

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Electromagnets are used to create a magnetic field which levitates the train above the track, and then by varying the current in the electromagnets, the train can be propelled forward or slowed down or stopped.

Maglev trains use the principle of electromagnetic suspension to levitate and propel the train. Electromagnets are placed on the underside of the train, and these electromagnets are energized with a current that creates a magnetic field.

This magnetic field interacts with the magnetic field of a conductor in the track, which creates an upward force that levitates the train above the track.

Once the train is levitated, the next step is to propel it forward. The same electromagnets that are used for levitation can be used to propel the train forward.

By varying the current in the electromagnets, the magnetic field created can be made to push or pull the train forward or backward. This process is known as magnetic propulsion or maglev propulsion.

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Answer:

Approximately \(15.5\; {\rm N}\), assuming that \(g = 9.81\; {\rm N \cdot kg^{-1}}\).

Explanation:

To find the tension in the rope on the right side of the pulley, apply the following steps:

The net force on the block is:

\(F_{\text{net}} = m_{\text{b}} \, a\), where

At the same time, the net force on the block can also be expressed as:

\(\begin{aligned}F_{\text{net}} &= T_{\text{left}} - (\text{weight}) \\ &= T_{\text{left}} - m_{\text{b}}\, g \end{aligned}\), where

Rearrange and solve for \(T_{\text{left}}\):

\(T_{\text{left}} - m_{\text{b}}\, g = F_{\text{net}} = m_{\text{b}}\, a\).

\(\begin{aligned}T_{\text{left}} &= m_{\text{b}}\, a + m_{\text{b}}\, g \\ &= m_{\text{b}}\, (a + g) \\ &= 1.3\, (1.2 + 9.81)\; {\rm N} \\ &= 14.313\; {\rm N}\end{aligned}\).

Let \(r\) denote the radius of the pulley. It is given that the diameter of the pulley is \(50\; {\rm cm}\). In standard units, the radius of the pulley would be \(r = 25\; {\rm cm} = 0.25\; {\rm m}\).

On the left side of the pulley, tension in the rope exerts a torque of \(\tau_{\text{left}} = T_{\text{left}}\, r\) on the pulley:

\(\begin{aligned}\tau_{\text{left}} &= T_{\text{left}}\, r \\ &= (14.313)\, (0.25)\; {\rm N\cdot m} \\ &= 3.57825\; {\rm N\cdot m} \end{aligned}\).

Under the assumptions, the moment of inertia \(I\) of this cylindrical pulley would be:

\(\begin{aligned} I &= \frac{1}{2}\, m\, r^{2} \end{aligned}\), where

\(\begin{aligned} I &= \frac{1}{2}\, m\, r^{2} \\ &= \frac{1}{2}\, (2.0)\, (0.25)^{2}\; {\rm kg \cdot m^{2}} \\ &= 0.0625\; {\rm kg\cdot m^{2}} \end{aligned}\).

Since the rope doesn't slip on the pulley, linear acceleration of the pulley would be equal to that of the rope, \(a = 1.2\; {\rm m\cdot s^{-2}}\). Divide this linear acceleration by the radius of the pulley to find the angular acceleration \(\alpha\) of the pulley:

\(\begin{aligned}\alpha &= \frac{a}{r} \\ &= \frac{1.2}{0.25}\; {\rm s^{-2}} \\ &= 4.8\; {\rm s^{-2}}\end{aligned}\).

Multiply angular acceleration by the moment of inertia to find the net torque \(\tau_{\text{net}}\) on the pulley cylinder:

\(\begin{aligned}\tau_{\text{net}} &= I\, \alpha \\ &= (0.0625)\, (4.8)\; {\rm kg \cdot m^{2}\cdot s^{-2}}\\ &= 0.3\; {\rm kg \cdot m^{2} \cdot s^{-2}} \end{aligned}\).

Note that the net torque of the pulley \(\tau_{\text{net}}\) is in the same direction as \(\tau_{\text{right}}\), but the opposite of \(\tau_{\text{left}}\). Hence:

\(\begin{aligned}\tau_{\text{right}} &= \tau_{\text{net}} + \tau_{\text{left}} \\ &= 0.3\; {\rm N\cdot m} + 3.57825\; {\rm N\cdot m} \\ &= 3.87825\; {\rm N\cdot m}\end{aligned}\).

Divide the torque on the right \(\tau_{\text{right}}\) by radius \(r\) to find the tension in the string on the right \(T_{\text{right}}\):

\(\begin{aligned}T_{\text{right}} &= \frac{\tau_{\text{right}}}{r} \\ &= \frac{3.87825}{0.25}\; {\rm N} \\ &= 15.513\; {\rm N}\end{aligned}\).

At a skate park, a skateboarder follows the path shown (Figure 1). At point B, the skateboarder is traveling at a speed of roughly 5.94 m/s.

At point A, the skateboarder has gravitational potential energy and kinetic energy. At point B, the gravitational potential energy is lower, but the total mechanical energy remains the same.

Using the conservation of energy principle:

\(mgh_1 + \frac{1}{2}mv_A^2 = mgh_2 + \frac{1}{2}mv_B^2\)

Since the mass of the skateboarder cancels out, we can rewrite the equation as:

\(gh_1 + \frac{1}{2}v_A^2 = gh_2 + \frac{1}{2}v_B^2\)

Plugging in the given values:

\(2.7 \times 9.8 + \frac{1}{2} \times 1.3^2 = 1.0 \times 9.8 + \frac{1}{2} \times v_B^2\)

Simplifying the equation:

\(26.46 + 0.845 = 9.8 + \frac{1}{2} \cdot v_B^2\)

vB² = (26.46 + 0.845 - 9.8) * 2

vB² = 35.305

Taking the square root of both sides:

vB ≈ 5.94 m/s

Therefore, the speed of the skateboarder at point B is approximately 5.94 m/s.

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The problem is related to the relative motion of a ship that is heading towards the east and the current that is flowing towards the southwest.

Let's suppose that the direction of the ship is at an angle of θ° with the East. So, the horizontal component of its velocity will be V cosθ, and the vertical component of its velocity will be V sinθ, where V is the speed of the ship. The direction of the current is flowing southwest, so it is making an angle of 135° with the positive x-axis.

Its horizontal component will be -5 cos45° = -3.5355, and

the vertical component will be 5 cos45° = 3.5355.

The actual horizontal component of velocity = V cosθ - 3.5355

Actual vertical component of velocity = V sinθ + 3.5355

When the ship is moving due East, it means θ = 0°.

Therefore, the actual horizontal velocity will be 20 - 3.5355 = 16.4645 mph, and

the actual vertical velocity will be 0 + 3.5355 = 3.5355 mph.

To find the actual speed of the ship, we will use the Pythagorean theorem;

Actual speed = √(16.4645² + 3.5355²) ≈ 16.87 mph

The angle θ can be calculated using the tangent function; tanθ = 3.5355 / 16.4645 = 0.214, and θ ≈ 12.04°.

The actual bearing is 090° + 12.04° = 102.04°.

The actual bearing of the ship is 102.04°, and the actual speed is 16.87 mph.

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The object that has potential energy is the can of gasoline.

Potential energy is described as the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors.

The forms of potential energy includes:

Potential energy is described as the energy a system has due to position, shape, or configuration.

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Answer:

1. It will never run out

2. It’s better for the eviroment

Explanation:

1. Coal is not a renewable source and take along time for it to form so it will soon run out

2. Burning coal releases fossil fums into the air affecting the ozone layer but using solar power dose not release anything into the air

Answer:

Renewable energy works as clean sources of energy, and don't make as much of a detrimental impact on the environment as non-renewable energy. Air pollutants are a product of some non-renewable sources, and it negatively affects the atmosphere, humans, animals, and oceans.

Also, renewable sources won't run out, unlike other sources, as they are finite and will not last forever.

I hope this helped!

Answer:

V=IR

5. = 2× RESISTANCE

RESISTANCE=5/2

=2.5 Ohms

Answer:

Explanation:

Assuming the squirrel is jumping off the ground, here's what we know but don't really know...

v₀ = 4.0 at 50.0°

So that's not really the velocity we are looking for. We are dealing with a max height problem, which is a y-dimension thing. Therefore, we need the squirrel's upward velocity, which is NOT 4.0 m/s. We find it in the following way:

\(v_{0y}=4.0sin(50.0)\) which gives us that the upward velocity is

v₀ = 3.1 m/s

Moving on here's what we also know:

a = -9.8 m/s/s and

v = 0

Remember that at the very top of the parabolic path, the final velocity is 0. In order to find the max height of the squirrel, we need to know how long it took him to get there. We are using 2 of our 3 one-dimensional equations in this problem. To find time:

v = v₀ + at and filling in:

0 = 3.1 - 9.8t and

-3.1 = -9.8t so

t = .32 seconds.

Now that we know how long it took him to get to the max height, we use that in our next one-dimensional equation:

Δx = \(v_0t+\frac{1}{2}at^2\) and filling in:

Δx = \(3.1(.32)+\frac{1}{2}(-9.8)(.32)^2\) and using the rules for adding and subtracting sig fig's correctly, we can begin to simplify this:

Δx = .99 - .50 so

Δx = .49 meters

Given data

*The given mass of the car is m = 1475 kg

*The maximum tension is T = 2551 N

The formula for the maximum possible acceleration of the truck is given by Newton's second law as

Substitute the known values in the above expression as

Hence, the maximum possible acceleration of the truck is a_max = 1.72 m/s^2

Answer:

A simple machine uses a single applied force to do work against a single load force

Ignoring the friction losses. The work done on the load is equal to the work done with the applied energy. The machine can increase the amount of output power, with a corresponding drop in the distance transported by the load.

The angle of incidence in the glass is approximately 31.8°.

To find the angle of incidence in the glass, we can use Snell's law, which states that the ratio of the sines of the angles of incidence and refraction is equal to the ratio of the indices of refraction:

n1 * sin(angle of incidence) = n2 * sin(angle of refraction)

In this case, n1 is the index of refraction for flint glass (1.61), n2 is the index of refraction for ethanol (1.36), and the angle of refraction in ethanol is 27.2°.

Plugging in these values into Snell's law, we get:

1.61 * sin(angle of incidence) = 1.36 * sin(27.2°)

To find the angle of incidence, we can rearrange the equation:

sin(angle of incidence) = (1.36 * sin(27.2°)) / 1.61

Now, we can solve for the angle of incidence by taking the inverse sine (or arcsine) of both sides:

angle of incidence = arcsin((1.36 * sin(27.2°)) / 1.61)

Calculating this value, the angle of incidence in the glass is approximately 31.8°.

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Answer:A or totalitarianism

Explanation: Totalitarianism is an authoritarian form of government in which the ruling party recognizes no limitations whatsoever on its power, including in its citizens' lives or rights

Some characteristics of totalitarianism:

Rule by a single party.

Total control of the military.

Total control over means of communication (such as newspapers, propaganda, etc…)

Police control with the use of terror as a control tactic.

Control of the economy.

Answer:

Internal energy is the microscopic energy contained in a substance, given by the random, disordered kinetic energy of the molecules. In addition it includes the potential energy between these molecules, and the nuclear energy contained in the atoms of these molecules

Answer:

Internal energy, in thermodynamics, the property or state function that defines the energy of a substance in the absence of effects due to capillarity and external electric, magnetic, and other fields.

Explanation:

Answer:

the answer is D

Explanation:

Answer:

The answer is D

Explanation:

yes