what is the formula for calculating velocity ​

Relative humidity is a measure of how much moisture the air can hold at a certain temperature compared to how much moisture it is currently holding. If the air temperature is 20°C and the vapor pressure has the same value as the saturation vapor pressure, this means that the air is holding the maximum amount of moisture it can hold at that temperature. In other words, the air is completely saturated with water vapor.

Therefore, the relative humidity in this scenario would be 100%, as the air is holding the maximum amount of moisture it can hold at that temperature. This means that the air is at its dew point, and any further cooling of the air would result in condensation or fog.

It's important to note that relative humidity can change depending on the temperature of the air. For example, if the temperature decreases while the amount of moisture in the air remains the same, the relative humidity would increase because the air is now closer to being saturated. Conversely, if the temperature increases while the amount of moisture in the air remains the same, the relative humidity would decrease because the air can now hold more moisture.

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The oscillating frequency of the LC circuit with a capacitor of 2 Farads and an inductor of 2 Henrys is approximately 0.03979 Hertz or 39.79 millihertz.

the oscillating frequency of an LC circuit can be calculated using the formula:

f = 1 / (2π√(LC))

where f is the frequency in hertz (Hz), L is the inductance in henries (H), and C is the capacitance in farads (F).

Given that the capacitor has a capacitance of 2 Farads (F) and the inductor has an inductance of 2 Henrys (H), we can substitute these values into the formula:

f = 1 / (2π√(2 H * 2 F))

Simplifying further:

f = 1 / (2π√(4 H*F))

f = 1 / (2π * 2 H*F)

f = 1 / (4π H*F)

Using the approximation of π as 3.14159:

f ≈ 1 / (4 * 3.14159 * 2 H * 2 F)

f ≈ 1 / (25.13272 H*F)

f ≈ 0.03979 H*F

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The approximate number of wavelengths of light that can travel in one direction within a retroreflecting bead that has a diameter of 5 ×\(10^-^5\) m is 167.

This calculation is based on the formula n = L/λ, where n is the number of wavelengths, L is the length of the object, and λ is the wavelength of light. To calculate the wavelength of light, we use the formula c = λf, where c is the speed of light and f is the frequency of light.

In this problem, we are given the diameter of the retroreflecting bead, which is assumed to be spherical. Therefore, its length is equal to its diameter, which is 5 × \(10^-^5\)m. We are also given the speed of light, which is 3 × \(10^8\) m/s, and an approximation of the frequency of light, which is \(10^1^5\) Hz.

Using the formula c = λf, we can solve for the wavelength of light:

λ = c/f = (3 ×\(10^8\) m/s)/\((10^1^5\)Hz) = 3 ×\(10^-^7\)m

Finally, we can use the formula n = L/λ to calculate the approximate number of wavelengths of light that can travel in one direction within the retroreflecting bead:

n = L/λ = (5 ×\(10^-^5\) m)/(3 ×\(10^-^7\) m) = 166.67 ≈ 167

Therefore, the approximate number of wavelengths of light that can travel in one direction within a retroreflecting bead that has a diameter of 5 ×\(10^-^5\) m is 167.

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Suppose that vector C = A - B, under normal circumstances, the length of vector C is not equal to the sum of the lengths of vectors A and B. The correct option is 4.

Vector C's length, denoted as ||C||, is not always equal to the sum of vectors A and B's lengths, denoted as ||A|| + ||B||.

Subtraction of two parallel vectors results in a vector with zero magnitude when A and B are parallel (option 1). ||C|| = 0, which is not equal to ||A|| + ||B|| unless both A and B have zero length.

When A and B are pointing in opposing directions (option 2), subtracting one vector from the other produces a vector with a magnitude equal to the difference between their magnitudes. ||C|| = ||A|| - ||B|| in this case, which is not equal to ||A|| + ||B|| unless ||B|| = 0.

Thus, the correct option is 4.

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Maximum elevation that the rocket reached is calculated to be 1109.69 m.

Angle that is formed between the horizontal line and line of sight is called the angle of elevation.

Given, net acceleration is 25 m/s²

Height after burn,

S = 0.5 x f x t²

= 0.5 x 25 x 25 = 312.5 m

Velocity is f x t =25 x 5= 125 m/s

Rocket starts to fall to earth and at its maximum height the velocity is zero

0 = initial velocity - g x t

= 125 - 9.8 x t

Now,  t = 12.75 secs

As, Distance travelled, S = u x t - 0.5 x g x t^2

= 125 x 12.75 - 4.9 x 12.75^2

Now, S = 797.19 m

So total elevation = 312.5 + 797.19

Therefore, total elevation = 1109.69 m

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Answer:

Distance is 50m

Displacement is 0m

Explanation:

Distance is based on the amount of length you covered, regardless of where you end.

Displacement only considered where you started and where you ended, which is at the same spot in this case. Therefore, no displacement.

The required force exerted on the master cylinder of a hydraulic lift to support the weight of a 2500-kg car is 147 Newton.

The hydraulic pressure on both cylinders are the same.

F₁ / A₁ = F₂ / A₂

Where:

F₁  = force on master cylinder

F₂ = force on slave cylinder

A₁ = cross section area of master cylinder

A₂ = cross section area of slave cylinder

In the given problem, the force acted on the slave cylinder is equal to the weight of the car. Hence,

F₂ = 2500 x 9.8 = 24,500 N

A₁ = 1/4 x 3.14 x 1.93² = 2.92 cm²

A₂ = 1/4 x 3.14 x 24.9² = 486.7 cm²

Plug these parameters into the equation:

F₁ / 2.92 = 24,500 / 486.7

F₁ = (24,500 / 486.7) x 2.92 = 147 Newton

Hence, the required force is 147 Newton

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The One strategy implemented to address the drug epidemic in Philadelphia is the creation of Comprehensive User Engagement Sites (CUES). These sites aim to tackle the widespread issue of drug addiction and related energy health concerns.

The CUES are safe spaces where individuals battling addiction can energy access various harm reduction services, such as clean syringes, medical support, and overdose prevention. These sites provide connections to addiction treatment programs and mental health services, helping people on their path to recovery. By offering safe and supervised spaces, CUES work to reduce public drug use, discarded syringes, and other related issues in the community. CUES also serve as educational hubs, raising awareness and providing information about the dangers of drug addiction and available resources for support. Lastly, these sites foster community engagement and collaboration, uniting various stakeholders in the fight against the drug epidemic. In summary, Comprehensive User Engagement Sites play a significant role in addressing the drug epidemic in Philadelphia. They provide harm reduction services, treatment programs, and community support, all while promoting a safer and healthier environment for the city's residents.

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Answer: true

Explanation:

Answer:

true

Explanation:

Using lubricants such as oil or grease can reduce the friction between the surfaces

Answer:

q = 0.384 C

Explanation:

The total charge present at the head can be easily found out by multiplying the charge on a single electron with the total number of electrons present on the head:

\(q = ne\)

where,

q = total charge on head = ?

n = total no. of electrons on the head = 2.4 x 10¹⁸

e = charge on 1 electron = 1.6 x 10⁻¹⁹ C

Therefore,

\(q = (2.4\ x\ 10^{18})(1.6\ x\ 10^{-19}\ C)\)

q = 0.384 C

Velocity of the elevator after 3 seconds is equal to v₂ = 3.79 m/s. The same two forces that were at play when the elevator was speeding up are still present. The normal force, which is less than at rest.

given,

mass of Corey = 95 Kg

reading of sale for first 3.0 s when elevator start to move = 810 N

scale reading for 3.0 s = 930 N

Gravitation force acting =

F = m g

F = 95 x 9.8

F = 931 N

using newton's second law, due to movement of elevator

F_{net} = m a

W - N = m a₁

930- 810 = 95 x a₁

a₁ = 1.26 m/s²

now,

velocity calculation

v₁ = a₁t

v₁ = 1.26 x 3.0 = 3.78 m/s

now, For second case

931 - 930 = 95 x a₂

a₂ = 0.010 m/s²

now, velocity after 3.0 s

v₂ = v₁ + a₂ t

v₂ = 3.78 + 0.010 x (3 - 3)

(3-3) because velocity after 3 second is calculate we need to calculate velocity after 3 s from beginning.

v₂ = 3.78 + 0.010

v₂ = 3.78 m/s

velocity of the elevator is equal to v₂ = 3.79 m/s.

When a person is moving in an elevator, there are two forces at work on him: gravity and the elevator's normal force. The elevator is stationary or travelling at a constant speed, and the two forces are of equivalent strength. When the elevator is accelerating uphill or downward, their magnitudes are not identical.

Since an elevator will move in a straight path with a constant speed, it exhibits uniform linear motion.

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Answer:

Colour of any object is by the colour of light it reflects i.e if white light is incident on the object,it will reflect blue color.so it will appear blue.But if red light is incident on it,it will not reflect that and absorb it.so as it will not reflect any light it will appear black.

Explanation:

Inertia has an impact on both moving and stationary objects, according to Newton's first law of motion. Unless an unbalanced force is acting on an object, Newton's first law states that it will stay at rest or move in a straight line at a constant speed.

What is inertia?

Iners, which means idle or slow in Latin, is where the word inertia originates. Any physical object's resistance to a change in velocity can also be referred to as having inertia. Changes in the object's motion's speed or direction fall under this category. This trait includes the propensity for objects to continue going straight ahead at a constant pace in the absence of external pressures. Mass, a quantitative characteristic of physical systems, manifests itself primarily in inertia. One of the pillars of traditional physics is the concept of inertia.

It is still utilized today to describe how objects move and are impacted by external forces.

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Answer:

Stars form from nebulae of dust and gases. Depending on its properties, a star may become a red, yellow, white, or blue star. 

38 nm A waveform signal that is carried in space or down a wire has a wavelength,

A waveform signal that is carried in space or down a wire has a wavelength, which is the separation between two identical places (adjacent crests) in the consecutive cycles. This length is typically defined in wireless systems in meters (m), centimeters (cm), or millimeters (mm) (mm).

The wavelength of the wave is the distance covered by it throughout a whole oscillation. A meter is the wavelength's SI unit (m).

*v=c/λ

v: 7.8 × 10^15 Hz c: 3.00*10^8 λ:?

7.8 × 10^15 Hz = 3.0010^8/λ

λ = 3.0010^8 m/s /7.8 × 10^15

λ = 3.8 10^-8

The calculated wavelength is in unit of meter. use the relationship between meter and nanometer to convert to the correct units.

3.8 10^-8 m (1nm/ 110^-9m )

= 38 nm

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The box with the changing data shows that the acceleration is constant at 4.90 m/s2, but i thought g = 9.80 m/s2.

The acceleration due to gravity (g) is different from the acceleration of the object itself. Although g is usually taken to be 9.8 m/s2, it can vary depending on the object's location and height above the Earth's surface. As a result, a falling object can experience acceleration greater than, less than, or equal to g when air resistance is taken into account or not

In the given scenario, the box is not necessarily in free fall; it could be undergoing linear motion along a surface. Furthermore, the box could be in free fall, but with air resistance affecting its motion. In this situation, the box's acceleration would be less than g.The box's acceleration may have been determined using an accelerometer or a ticker tape. Regardless, the acceleration indicates the rate at which the box's velocity is changing, which may or may not be equal to g.

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It would take 1.556 seconds for the barrier to crumple and safely slow down the person with a force of 1180 N.

To calculate the time required to crumple the barrier and safely slow down the person, we can use the concept of impulse.

The impulse, denoted by J, is defined as the product of force and time, and it represents the change in momentum of an object. In this case, the impulse required to safely slow down the person can be calculated using the maximum force and the person's initial momentum.

The momentum of a person is given by the product of their mass and velocity:

Momentum = mass × velocity

Given that the person's mass is 68 kg and their velocity is 27 m/s, the initial momentum is:

Initial momentum = 68 kg × 27 m/s

To safely slow down the person, the impulse provided by the barrier should be equal to the change in momentum.

Therefore, we have:

Impulse provided by barrier = Final momentum - Initial momentum

Since the person is brought to rest, the final momentum is zero. Thus, we have:

Impulse provided by barrier = -Initial momentum

Now we can express the impulse in terms of force and time:

Impulse provided by barrier = Force × Time

Plugging in the known values, we can solve for time:

-Initial momentum = Force × Time

68 kg × 27 m/s = 1180 N × Time

Simplifying the equation, we find:

Time = (68 kg × 27 m/s) / 1180 N

Evaluating the expression:

Time = 1836 kg·m/s / 1180 N

Finally, converting kg·m/s to seconds, we get:

Time ≈ 1.5559 seconds

Therefore, it would take approximately 1.556 seconds for the barrier to crumple and safely slow down the person with a force of 1180 N.

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Water boils at exactly 100°C (212°F) at normal atmospheric pressure. This is known as the boiling point of water, and it is the temperature at which water transitions from a liquid to a gas (steam) at normal atmospheric pressure. The boiling point of a substance is the temperature at which the vapor pressure of the liquid is equal to the atmospheric pressure, and for water, this occurs at 100°C. The boiling point of water can vary depending on factors such as the altitude and the atmospheric pressure, but at sea level and at normal atmospheric pressure, water boils at exactly 100°C.

The coefficient of static friction between the tires and the road is  0.16.

The coefficient of static friction between the tires and the road for the car to safely navigate the curve at the posted speed is calculated as follows;

Static friction = centripetal force

μmg = mv²/r

μ = ( v² ) / ( rg)

where;

The coefficient of static friction between the tires and the road is calculated as follows;

μ = ( 12² ) / ( 95 x 9.8)

μ  = 0.16

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Answer:

The correct answer is "\(12\times 10^{-6} \ C\)".

Explanation:

Given that,

\(Q1=+4.0\times 10^{-6} \ C\)

and,

\(Q2=+2.0\times 10^{-5} \ C\)

or,

     \(=20\times 10^{-6} \ C\)

then,

The total charge will be:

⇒ \(Q =Q1+Q2\)

       \(=(+4.0\times 10^{-6}) +(20\times 10^{-6})\)

       \(=24.0\times 10^{-6} \ C\)

hence,

After separation, the charge on each sphere will be:

⇒ \(q=\frac{Q}{2}\)

       \(=\frac{24.0\times 10^{-6}}{2}\)

       \(=12\times 10^{-6} \ C\)

Answer:

The heat doesn't come from any of those the heat comes from the Sun

Explanation:

But the thing that holds the heat from the Sun is the Earth's atmosphere.

When he gets hot the carbon dioxide holds in the heat but when the when oxygen it meets the heat in the air it makes it become cooler

40cm³ is  volume of a metal block measures 10cm×2cm×2cm and 5 blocks have the same total volume.

volume=l×b×h

volume=10cm×2cm×2cm= 40cm³

volume=l×b×h

volume= 2cm×2cm×2cm=8cm³

blocks have the same total volume= 40cm³/8cm³= 5

The space occupied inside an object's borders in three dimensions is referred to as its volume. It is sometimes referred to as the object's capacity. Finding an object's volume can help us calculate the quantity needed to fill it, such as the volume of water needed to fill a bottle, aquarium, or water tank.

A sphere is the most basic and typical form of a three-dimensional shape. We see spheres on a regular basis in the form of balls, globes, ornamental lights, oranges, etc.

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Answer:

B) an alcohol-inspired coma

There are three types of alcohol one is primary second is secondary and third is tertiary. Therefore, the correct option is option B that is  an alcohol-inspired coma.

Alcohol is a chemical molecule with a functional group called hydroxyl linked to a saturated carbon atom. Alcohols classified as primary have just one alkyl group on which the carbon atom of the hydroxyl group (OH) is connected.

Secondary alcohols are those that have two alkyl groups on either side of the carbon atom of the hydroxyl group. In tertiary alcoholic group, the carbon that is bonded to hydroxyl group is bonded to three alkyl groups. If a person rapidly drinks a large amount of alcohol, it could lead to what is known as an alcohol-inspired coma.

Therefore, the correct option is option B.

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Answer:

yes

Explanation:

The range of the shots(projectiles) will be around 131.65 meters when the point of the cannon is set to 20 degrees above level. 

To decide the run of the shots, we have to calculate the horizontal distance that the shots will travel.

Ready to utilize the taking after kinematic condition to fathom for the run:

\(R = (v^2/g) * sin(2θ)\)

Where:

R = run

v = starting speed (25 m/s)

g = increasing speed due to gravity (9.81 m/s²)

θ = point of the cannon (20 degrees)

Substituting the given values into the condition, we get:

\(R = (25^2/9.81) * sin(2*20)\)

R = 131.65 meters

In this manner, the run of the shots will be around 131.65 meters. 

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Field strength is 0.03234 N/kg. The formula to determine the field strength is given by:

F = mg Here, F is the field strength, m is the mass, and g is the gravitational field strength.

Substituting the values given: Weight = 0.96 N Mass = 3.3 g = 0.0033 kg = 9.8 m/s² Therefore, F = mg = 0.0033 kg × 9.8 m/s² = 0.03234 N the field strength is the gravitational force acting on a unit mass. It is measured in newtons per kilogram. The field strength is an expression of the strength of a gravitational field. In this case, the mass of the object is 3.3 g, which can be converted to kilograms by dividing by 1000.

The weight of the object is given as 0.96 N. Using the formula

F=mg, where m is the mass and g is the gravitational field strength, we can calculate the field strength as 0.03234 N/kg.

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Answer:

A centripetal force

Explanation:

The type of force in the given scenario is tension. The correct option is c.

Tension is defined in physics as the pulling force conveyed axially by a string, cable, loop, or similar material, or by every end of a rod, truss member, or similar three-dimensional object.

Tension can also be defined as the action-reaction pair of forces acting at each end of said elements.

Newton's second law states that the tension in the rope must equal the weight of the backed mass.

Tension, the normal force, and friction are all examples of contact forces.

Since the weight is not moving, the acceleration is zero. Even if the acceleration is not zero, this equals zero.

Thus, the correct option is c.

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Your question seems incomplete, the missing options are:

The force that pushes groundwater from pore space to pore space when below the water table is primarily due to the pressure gradient within the aquifer. This pressure gradient is caused by the weight of the overlying water and the force of gravity.

Below the water table, the spaces between soil or rock particles are filled with water. These spaces are known as pore spaces. The water table represents the upper surface of the saturated zone, where all the pore spaces are filled with water. gravity acts vertically downward, causing the weight of the water above a particular point to exert a downward force. As a result, the water pressure increases with depth. This increase in pressure creates a pressure gradient within the aquifer.

The pressure gradient drives the flow of groundwater from areas of higher pressure to areas of lower pressure. When a well is drilled into the aquifer below the water table, water will naturally flow into the well and rise to the level of the water table. This is because the pressure is higher below the water table compared to the lower pressure in the well.

The movement of groundwater from pore space to pore space occurs due to the pressure difference between adjacent spaces. Water will flow from areas of higher pressure to areas of lower pressure until the pressures equalize. This movement of water is known as groundwater flow or hydraulic conductivity.

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