Caleb conduce su motocicleta por con una velocidad constante de 38 km/h y luego por otras 2 horas con una velocidad constante de 20 km/h. ¿Cuál es su velocidad media para el viaje total?

Answer:Korotkoff Sounds. -tapping sounds created by turbulent blood flow in arm. -pressure is slowly being released from cuff, so systolic pressure is above that of the cuff, but diastolic is still below, so the artery opens in systole and collapses in diastole.

Explanation:

The Productivity Index (PI) of the well is 2 psi/bbl per day. This indicates the efficiency of the well in delivering fluids from the reservoir to the wellbore.

The Productivity Index (PI) is a measure of the well's ability to deliver fluids from the reservoir to the wellbore. It is calculated by dividing the difference between the reservoir pressure and the flowing bottomhole pressure by the production rate. In this case, the reservoir pressure is given as 3,000 psi, and the flowing bottomhole pressure is measured at 2,990 psi. The production rate is 5 barrels per day.

For calculating the PI, use the formula:

PI = (Reservoir Pressure - Flowing Bottomhole Pressure) / Production Rate

Substituting the given values into the formula:

PI = (3,000 psi - 2,990 psi) / 5 bbls per day

Simplifying the equation:

PI = 10 psi / 5 bbls per day

PI = 2 psi/bbl per day

Therefore, the Productivity Index (PI) of the well is 2 psi/bbl per day. This indicates the efficiency of the well in delivering fluids from the reservoir to the wellbore.

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Friction, gravity, normal force, drag force, tension force and human force are the forces that occurs on free body.

There are large number of external forces acting on an object such as friction, gravity, normal force, drag force, tension force and human force due to pushing or pulling. These forces can cause the motion of the free body which is present at rest form or can stop a body which is moving. A free-body diagram is a useful means of describing and analyzing all the forces that act on a body to determine equilibrium.

So we can conclude that friction, gravity, normal force, drag force, tension force and human force are the forces that occurs on free body.

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Answer:

1. 4

2.0.625HZ

3.500

4. 428274940000000 or 4.2*10^14

5. 2

Explanation:

omnicalculator.com/physics/wavelength

Complete Question:

What is the power in a circuit that has a current of 12 amps and a resistance of 100 ohms?

Answer:

D. 14,400 watts

Explanation:

The electrical power of an electric circuit can be defined as a measure of the rate at which energy is either produced or absorbed in the circuit.

Mathematically, electrical power is given by the formula;

\( Electrical \; power = current * voltage \)

This ultimately implies that, the quantity (current times voltage ) is electrical power and it is measured (S.I units) in Watt (W).

Given the following data;

To find the power in the circuit, we would use the following formula;

Power = I²R

Where;

Power = 12² * 100

Power = 144 * 100

Power = 144,000 Watts

Answer: Speed

Explanation:

Speed is the time it takes something to travel a certain distance. Accelaration is the rate at which an object's speed changes. Velocity is a vector of the object's speed and direction.

The maximum acceleration of the object is 10.94 x 10² m/s².

The equation of displacement is given as,

y(t) = 4.8 cos(15.1 t)

It is in the form, y(t) = A cos(ωt)

So, the amplitude of the SHM, A = 4.8 m

Angular frequency, ω = 15.1 s⁻¹

The maximum acceleration,

a(max) = -Aω²

the -ve sign indicates that the acceleration is acting towards the mean position.

a(max) = 4.8 x 15.1²

a(max) = 10.94 x 10² m/s²

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The objects with a speed higher v = 7668 m/s than that number are likely to go into orbit. (Y & Z)

The orbital speed of an astronomical body or object (e.g. planet, moon, artificial satellite, spacecraft, or star) is the speed at which it orbits around either the barycenter or if one object is much more massive than the other bodies in the system, its speed relative to the centre of mass of the most massive body.

The term can be used to refer to either the mean orbital speed, i.e. the average speed over an entire orbit, or its instantaneous speed at a particular point in its orbit.

Maximum (instantaneous) orbital speed occurs at periapsis (perigee, perihelion, etc.), while minimum speed for objects in closed orbits occurs at apoapsis (apogee, aphelion, etc.).

In ideal two-body systems, objects in open orbits continue to slow down forever as their distance to the barycenter increases.

g = v^2 / r

so v = square root ( r x g )

v = 7668 m/s will be the minimum speed needed to go into orbit.

Based on that, objects with a speed higher than that number are likely to go into orbit. (Y & Z)

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The track would the object have both kinetic energy and potential energy is an object which is falling, but has not yet reached the ground.

An object can have both kinetic and potential energy at the same time. For example, an object that is falling but has not yet reached the ground has kinetic energy because it is moving downwards, and potential energy because it may be moving further downwards than it is now.

One of the most important similarities between potential energy and kinetic energy is that they can be converted into each other's energy forms. When a force is applied to potential energy, it is converted into kinetic energy. This means objects like B. A ball can move when it is stationary.

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The electric field at the given point 0.15 m to the right of the egg on the left.

In this situation, April has charged two plastic eggs, which creates an electric field around them. The electric field is a region in which an electric charge experiences a force due to its charge. To calculate the electric field at the given point, we must consider the contributions from both eggs.
Let's denote the left egg as A (with charge 6.0 x 10⁻⁶ C) and the right egg as B (with charge 4.0 x 10⁻⁶ C). The point of interest is 0.15 m to the right of egg A, making the distance from egg A to the point 0.15 m and from egg B to the point 0.25 m (0.40 m - 0.15 m).
The formula for the electric field (E) due to a point charge (q) at a distance (r) is given by:
E = k * q / r²
where k is the electrostatic constant (8.99 x 10⁹ Nm²/C²).
Now, calculate the electric field at the point due to each egg separately:
E_A = (8.99 x 10⁹ Nm²/C²) * (6.0 x 10⁻⁶ C) / (0.15 m)²
E_B = (8.99 x 10⁹ Nm²/C²) * (4.0 x 10⁻⁶ C) / (0.25 m)²
As both electric fields have the same direction (left to right), we can add them together to get the total electric field at the point:
E_total = E_A + E_B

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1 ft²= 0.09290304m²

so:

43560ft²= 0.09290304m²×43560

= 4,046.8564224 m²

Answer: 4046.9m² (approx.)

Explanation:

An acre is 43560 ft², but the US has two feet, the International foot, and the (old) Survey foot. Since 1983, the answer varies by state according to which foot the State has adopted for surveying. (Previously, it was always the Survey foot).

International: 43560 ft² x (0.3048 m/ft)² = 4046.856 422 m²

Survey: 43560 ft² x (1200/3937 m)² = 4046.872 610 m²

Both round to 4046.9 m² if that’s good enough, but there is a tiny difference.

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The sudden cessation of energy generation causes the core to collapse and the star's outer layers to collapse onto the core.

What is core collapse?

Core-collapse supernovae are spectacular explosions that occur at the end of a big star's thermonuclear evolution, giving rise to neutron stars and black holes. They are among the most intense occurrences in the universe, play an important role in the synthesis and distribution of chemical elements, drive the development of new stars, and are closely tied to an enigmatic subclass of gamma-ray bursts. As a result, astro-physicists are keen to learn which stars burst as supernovae, what physical mechanisms produce the explosion, and what observable effects result from these cataclysmic events.

When the explosion wave generated in the optically obscured stellar centre eventually reaches the surface layers of the star, the visual supernova outburst begins.

The fire ceases because iron does not work as a fuel. The sudden cessation of energy output leads the core to collapse and the star's outer layers to collapse onto the core. The infalling layers compress so quickly that they 'bounce' off the iron core at near-lightspeed.

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Answer:

The answer is revolution

Explanation:

The original capacitance of the vacuum-filled capacitor was 1.36 × 10^-8 F.

We can use the capacitance equation for a parallel-plate capacitor to find the original capacitance:

\(C = ε₀A/d\)

where C is the capacitance, ε₀ is the permittivity of free space\((8.85 × 10^-12 F/m),\) A is the area of each plate, and d is the distance between the plates.

Using the given values, we have:

\(C = (8.85 × 10^-12 F/m)(0.460 m^2)/(3.00 × 10^-3 m) = 1.36 × 10^-8 F\)

This is the capacitance of the vacuum-filled capacitor before the dielectric is inserted.

When the dielectric is inserted, it increases the capacitance of the capacitor according to the:

\(C' = kε₀A/d\)

where C' is the new capacitance, k is the dielectric constant of the material, and all other variables have the same meaning as before.

The potential difference between the plates decreases because the charge on each plate remains constant, so the equation for capacitance can be rearranged to:

V = Q/C

where V is the potential difference, Q is the charge on each plate, and C is the capacitance.

Using the values given, we can solve for the charge on each plate before the dielectric is inserted:

\(Q = CV = (1.36 × 10^-8 F)(4.00 × 10^3 V) = 5.44 × 10^-5 C\)

After the dielectric is inserted, the charge on each plate remains the same, so we can use the equation for the new capacitance to solve for k:

\(k = C'd/ε₀A = C/C' = V'/V\)

where V' is the new potential difference (2.50 kV).

Substituting in the known values, we get:

\(k = (2.50 × 10^3 V)/(4.00 × 10^3 V) = 0.625\)

The dielectric constant for the material is therefore 0.625.

Finally, we can use the equation for the new capacitance with the dielectric constant to find the capacitance with the dielectric inserted:

\(C' = kε₀A/d = (0.625)(8.85 × 10^-12 F/m)(0.460 m^2)/(3.00 × 10^-3 m) = 6.88 × 10^-9 F\)

So the original capacitance of the vacuum-filled capacitor was 1.36 × 10^-8 F.

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The Second Law of Thermodynamics states that in any closed system, the overall entropy, or disorder, tends to increase over time. This principle can be applied to understanding why most people make a habit out of cleaning their homes and why it requires effort.

When left unattended, homes naturally tend to accumulate dust, dirt, and clutter, leading to an increase in entropy. Entropy in this context can be thought of as the disorder or disarray within the living space. Cleaning, on the other hand, involves reducing this disorder by organizing and removing unwanted substances or objects.

Cleaning requires effort because it involves the expenditure of energy to reverse the natural tendency of increasing entropy. As you clean your home, you are actively working against the natural process of disorder by tidying up, dusting, vacuuming, and performing various cleaning tasks. These activities require physical exertion, concentration, and time investment.

The effort required in cleaning can be attributed to several factors:

Energy expenditure: Cleaning tasks often involve physical movements such as scrubbing, lifting, and reaching, which require the expenditure of energy. This energy expenditure is necessary to counteract the tendency of disorder and restore order within the home.

Attention to detail: Cleaning involves paying attention to various details and ensuring that every nook and cranny is thoroughly cleaned. This requires focus and concentration, as well as the ability to identify areas that need attention.

Time commitment: Cleaning can be a time-consuming activity, particularly if you want to achieve a thorough and satisfactory result. It may involve dedicating significant portions of your day or week to cleaning tasks, depending on the size and condition of your home.

Maintenance: Cleaning is not a one-time task but rather an ongoing process. Regular cleaning is necessary to prevent the accumulation of dirt and disorder from reaching overwhelming levels. This means that cleaning becomes a habit or routine, requiring consistent effort to maintain cleanliness and order within the home.

Overall, the Second Law of Thermodynamics helps explain why cleaning is a necessary activity that requires effort. It highlights the natural tendency of disorder to increase in a closed system and underscores the need for humans to actively counteract this tendency through cleaning and organizing their living spaces.

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Answer: Transverse waves

Explanation:

Transverse waves cause the medium to move perpendicular to the direction of the wave. Longitudinal waves cause the medium to move parallel to the direction of the wave.

Sound waves carry energy parallel to the motion of the wave, while light waves carry energy perpendicular to it.

We know that light is electromagnetic wave and also we have to know that light is a transverse wave. The implication of that is that the direction of the wave motion is parallel to that of the disturbance that is causing the wave.

Light waves have higher intensity than sound waves and can cause more damage. The human eye is much more sensitive to light than the human ear is to sound.

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Answer:

D is  the answer
Sound waves carry energy parallel to the motion of the wave, while light waves carry energy perpendicular to it.

Explanation:

Answer:

They are known as isotopes

deals with issues and phenomena at the fringes of established science, protoscience is also called "Fringe Science".

An unscientific or pseudoscientific topic of study that eventually develops into a science is referred to as protoscience (plural protosciences). Alchemy is better referred to as a type of "proto-science" than as a separate science in and of itself. This is due to the fact that, despite the fact that many of the discoveries and hypotheses developed by alchemists were based on scientific fact, they were frequently interpreted in terms of "magic" or supernatural intervention. Prior to the development of the current scientific method, there were disciplines of study known as protosciences. The term "fringe science" describes theories that are very speculative or rely on premises that have already been debunked. Ideas that drastically diverge from an established or mainstream theory are referred to as fringe theories. A fringe theory is not the consensus view or the considered viewpoint of a respected minority.

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The percentage of adhesions measured in use that are higher than 0.40 is approximately 22.66%.

For finding the percentage of adhesions that are higher than 0.40, need to calculate the area under the normal distribution curve to the right of 0.40. First, need to standardize the value of 0.40 using the Z-score formula:

Z = (X - μ) / σ

Where X is the value (0.40), μ is the mean (0.37), and σ is the standard deviation (0.04).

Z = (0.40 - 0.37) / 0.04 = 0.03 / 0.04 = 0.75

Next, look up the Z-score of 0.75 in the standard normal distribution table for finding the corresponding cumulative probability. The Z-table tells that the cumulative probability to the left of 0.75 is approximately 0.7734.

Since want the percentage to the right of 0.40, subtract the cumulative probability from 1:

1 - 0.7734 = 0.2266

Therefore, the percentage of adhesions measured in use that are higher than 0.40 is approximately 22.66%.

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The angle the string makes with the vertical is : 34.6°

Given data :

mass of rubber stopper ( m ) = 45 g

Radius ( r ) = 2.9 m

Time to complete one revolution ( T ) = 4.1 secs

applying the formula below

Tan ∅ = \(\frac{mw^2r}{mg}\) --- ( 1 )

cancel out m from equation ( 1  )

Tan ∅ = \(\frac{w^2r}{g}\)    ----- ( 2 )

where ; w = \(\frac{2\pi }{T}\)  

Therefore equation ( 2 ) becomes

Tan ∅ = \(\frac{4\pi ^2r}{T^2g}\)   --- ( 3 )

where ; r = 2.9 m, T = 4.1 secs , g = 9.8

Insert values into equation ( 3 )

Tan ∅ = 0.69

      ∅ = Tan ( 0.69 )

         = 34.6°

Hence we can conclude that The angle the string makes with the vertical is : 34.6°.

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Streak is a material property that characterizes particular mineral's coloration.

The mineral is an ingredient or chemical component that has emerged as a result of natural formations and is often crystalline in nature. Examples include the minerals quartz, feldspar, calcite, sulfur, and clays like kaolinite and smectite.

Minerals are necessary building blocks for our daily lives and are fundamental to the advancement of economic, social, and technological systems. For instance, consider the following: Agriculture: Additional mineral products are also utilized to improve soil, including phosphate rock, potash, and lime.

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Answer:

Explanation:

The mass of an object can be found by using the formula

\(m = \frac{f}{a} \\ \)

f is the force

a is the acceleration

From the question we have

\(m = \frac{18}{2} \\ \)

We have the final answer as

Hope this helps you

1) The missing properties are \(\nu = 0.001093\,\frac{m^{3}}{kg}\), \(u = 639.54\,\frac{kJ}{kg}\) and \(h = 640.59\,\frac{kJ}{kg}\). (Subcooled liquid)

2) The missing properties are \(T = 263.94\,^{\circ}C\), \(\nu = 0.0163\,\frac{m^{3}}{kg}\), \(u = 1719\,\frac{kJ}{kg}\) and \(x = 0.394\). (Liquid-gas mix)

3) The missing properties are \(T = 422.825\,^{\circ}C\), \(\nu =0.0603\,\frac{m^{3}}{kg}\) and \(u = 3251.7\,\frac{kJ}{kg}\). (Superheated steam)

4) The missing properties are \(P = 0.36873\,kPa\), \(u = -337.836\,\frac{kJ}{kg}\), \(h = -337.458\,\frac{kJ}{kg}\) and \(x = 2.988\times 10^{-3}\). (Solid-gas mix)

In this question we must determine the phase associated to the given pressure (\(p\)), in kilopascals, temperature (\(T\)), in degrees Celsius, specific volume (\(\nu\)), in cubic meters per kilogram, internal energy (\(u\)), in kilojoules per kilogram, enthalpy (\(h\)), in kilojoules per kilogram, or quality (\(x\)), no unit.

By steam tables we know that saturation temperature associated with pressure is 151.83 °C, which means that water is a subcooled liquid and quality does not apply herein.

The missing properties are summarized below:

\(\nu = 0.001093\,\frac{m^{3}}{kg}\), \(u = 639.54\,\frac{kJ}{kg}\), \(h = 640.59\,\frac{kJ}{kg}\)

The missing properties are \(\nu = 0.001093\,\frac{m^{3}}{kg}\), \(u = 639.54\,\frac{kJ}{kg}\) and \(h = 640.59\,\frac{kJ}{kg}\). (Subcooled liquid) \(\blacksquare\)

By steam tables we know that water is a mix of gaseous and liquid phases. Hence, the missing properties are summarized below:

\(T = 263.94\,^{\circ}C\), \(\nu = 0.0163\,\frac{m^{3}}{kg}\), \(u = 1719\,\frac{kJ}{kg}\), \(x = 0.394\)

The missing properties are \(T = 263.94\,^{\circ}C\), \(\nu = 0.0163\,\frac{m^{3}}{kg}\), \(u = 1719\,\frac{kJ}{kg}\) and \(x = 0.394\). (Liquid-gas mix) \(\blacksquare\)

By steam tables we know that water is a superheated steam. Hence, missing properties are summarized below:

\(T = 422.825\,^{\circ}C\), \(\nu =0.0603\,\frac{m^{3}}{kg}\), \(u = 3251.7\,\frac{kJ}{kg}\)

The missing properties are \(T = 422.825\,^{\circ}C\), \(\nu =0.0603\,\frac{m^{3}}{kg}\) and \(u = 3251.7\,\frac{kJ}{kg}\). (Superheated steam) \(\blacksquare\)

By ice tables we know that properties correspond to a mix of solid and gaseous phases. Thus, missing properties are summarized below:

\(P = 0.36873\,kPa\), \(u = -337.836\,\frac{kJ}{kg}\), \(h = -337.458\,\frac{kJ}{kg}\), \(x = 2.988\times 10^{-3}\)

The missing properties are \(P = 0.36873\,kPa\), \(u = -337.836\,\frac{kJ}{kg}\), \(h = -337.458\,\frac{kJ}{kg}\) and \(x = 2.988\times 10^{-3}\). (Solid-gas mix) \(\blacksquare\)

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A convex mirror is a spherical mirror that curves outward, away from the observer. When an object is placed in front of a convex mirror, the image created is a virtual image behind the mirror.

The image formed is always smaller than the actual object size. The image formed by a convex mirror is always virtual and smaller than the actual object size.In a convex mirror, the reflection of the image is formed when the light rays diverge outwards, creating a virtual image behind the mirror. The image formed is always smaller than the actual object size. The image formed by a convex mirror is always virtual and smaller than the actual object size. It does not have a real image. In general, a virtual image is one that is not formed by the actual intersection of light rays but appears to be the result of their intersection by projection.

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Answer:

a

all the molecules or atoms in motion has kinetic energy