a smooth impression tray is coated with a(n) ____________ before the final impression material is placed in the tray.

Answer:

240 s

Explanation:

distance = 84 cm

speed = 3.5 mm/s (0.35cm/s)

but speed = distance/time

hence the shortest time taken = distance/speed

= 84/0.35 = 240s

The kinetic energy of Shawn, if the he has a mass of 43. 8 kg is 14.18 J.

This is the energy of a body due to its motion.

To calculate Shawn's kinetic energy, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, Shawn's kinetic energy is 14.18 J.

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Explanation:

Ventilation

Answer:

The thrust that you feel at the time of firing is one of the real-life example of the conseriation nomentum

Answer:

light travels slowest in diamond

Explanation:

The higher the index of refraction is, the slower the speed of light is. The indexes of refraction for diamond, air, and glass are, respectively, 2.42, 1.00, and approximately 1.50, depending upon the composition of the glass. Light travels slowest in diamonds.

Answer:

A

Explanation:

Because D is definitely true and there is only one false sentence what means if that non of B or C is false because if one is false so other one needs to be too.

Answer:

V = √ ( 6.65² + 9.87² ) ≈ √ 141.64 = 11.90 mph

Constellation is a group of stars that appears to form a pattern or picture. Some of the constellations include Orion, Taurus, Canis Major etc.

Orion is located on the celestial equator and it can be seen throughout the world. This constellation is named after the hunter, in Greek mythology. It is one of the most obvious and recognizable constellations in the sky. Orion is most visible in the evening sky from January to April, during winter season in the Northern Hemisphere, and summer season in the Southern Hemisphere. In the tropics, the constellation moves at the zenith. Orion is bordered by Taurus to the northwest, and by other constellations in other directions.

Taurus is one of the constellations of the 12 zodiac signs. It is a large and prominent constellation in the Northern Hemisphere during winter. It is one of the oldest constellations. The International Astronomical Union gave a three-letter abbreviation for the constellation, as "Tau". During late November-early December, Taurus occupies a furthest point from the Sun and is visible the entire night. By late March, it sets at sunset and completely disappears behind the Sun's glare from May to July.

Canis Major is a constellation in the southern celestial hemisphere. It is a Latin name, which means 'greater dog' in contrast to 'Canis Minor' meaning 'lesser dog'. These both figures are commonly represented as following the constellation of Orion, the hunter, through the sky. Canis Major contains Sirius, the brightest star in the night sky, known as the "dog star". It is bright because of its proximity to the Solar System.

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Initial velocity, u= 4.18E^5 m/s

Final velocity, v= 5.19E^5 m/s

a = 3E^14 m/s²

from,

a = (v - u)

t

t = (v - u)

a

t = (5.19E^5 - 4.18E^5)

3E^14

t = 3.37 × 10^-10s

side note; the E represents 10 power.

Percentage of the vehicle's kinetic energy is stored in the wheels is 9.64%

Kinetic energy is the energy possessed by the object due to its motion. [ It is defined as the work required to accelerate a body of specified mass from rest to a specified velocity. After the body acquires this energy during acceleration, it retains this kinetic energy as long as the velocity does not change. The same work is done when the body slows down from its current speed to rest. Formally, kinetic energy is any term in the Lagrange of a system that includes the time derivative.

 In relativistic mechanics, this is a good approximation only if v is much smaller than the speed of light. The standard unit for kinetic energy is the joule, while the British unit for kinetic energy is the foot-pound.

I = rg2*m

rotational KE of wheels  = 0.5Iω2= 0.5(rg2*m)*(v/r)2

4KE = 2(rg2*m)*(v/r)2 = 2(9.92*34)(792/11.12) = 337588.41

total kinetic of wheel = 4(0.5mv2) + Rotational KE = 761976.41

KE of car = 0.5mv^2 + Rotational KE wheel = 7904800.91

% =(Total KE of wheel / Total KE of car)*100 = 9.64%

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The composition in atom percent of an alloy that consists of 92.5 wt. g and 7.5 wtu is 12 %

Silver's atomic weight = 107.87 gm / mol

Weight in atoms of copper = 63.55  gm / mol

Percentage of silver weight =-92.5 %

Percentage of copper = 7.5 %

Percent composition of silver =

Weight of silver * weight of copper / percent of silver * weight of Copper + percent of copper * weight of silver     *100

= 92.5 * 63.55 / 92.5 *  63.55 + 7.55 *107.87  *100

= 87.9%

Percent composition of copper =

Percent of copper * weight of silver / percent of silver * weight of Copper + percent of copper * weight of silver     *100

=7 .5 * 63.55 / 92.5 *  63.55 + 7.55 *107.87  *100

=12.1 %

This statement is False.

Atomic mass (sometimes known as atomic weight, however this term is erroneous because the mass is a property of the body while the weight depends on gravity) is the mass of an atom that corresponds to a certain chemical element. Typically, the uma (u) is employed as a unit of measurement. where u.m.a. stands for "unit of atomic mass." In honor of the English chemist John Dalton, this unit is also frequently referred to as the Dalton (Da). The Dalton is equal to one-twelfth of the mass of the carbon-12 nucleus, the most common isotope of carbon. It roughly equates to the mass of a proton (or a hydrogen atom). It is referred to as "uma," while "amu" is also its English abbreviation (Atomic Mass Unit). However, The suggested character is "u".

The weighted average of the masses of each isotope of each chemical element, which takes into account their relative abundance, is typically used to calculate the atomic masses of the chemical elements. This is what accounts for the discrepancy between an element's atomic mass in umas and the number of nucleons that contain the nucleus of its most prevalent isotope.

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In the peak of summer, it hasn't rained in a week, and the plants are looking rough, so watering the plants for an hour is a good idea.

However, the next day, you come back to the garden, and the plants look in worse shape than they did previously, as if none of that water made it to the plant. Plants absorb water through their roots. The root system of a plant is responsible for drawing water and nutrients from the soil. A plant's root system must be able to absorb water quickly in order for the plant to grow and thrive. When the soil around the root system is dry, the roots will stop growing and will not be able to absorb water.

It may even start to die. Watering plants during the peak of summer is important because it will help keep the soil moist and prevent the roots from drying out. However, watering a plant too much can be harmful. If a plant is overwatered, the water may not be able to penetrate the soil and reach the roots. Instead, it may just sit on top of the soil, causing the roots to rot and die. This can cause the plant to wilt and die.To summarize, if the soil around the plant is too dry, the roots may not be able to absorb the water you gave them, causing the plant to look worse than before. Conversely, overwatering can also be harmful because the water may not be able to penetrate the soil and reach the roots, causing the roots to rot and die.

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Answer:

B

Explanation:

direction is literally the only difference between speed and velocity

Taking into account the definition of speed and velocity, the correct answer is option b. Unlike acceleration and velocity, speed is NOT a quantity that accounts for direction.

Speed ​​refers to the distance an object travels in a given time and is a scalar quantity.

On the other hand, velocity is a magnitude that expresses the relationship between the space traveled by an object, the time used for it and its direction. In other words, velocity refers to the interval of time it takes for an object to move towards a certain direction. Since velocity considers the direction in which an object moves, it is considered a vector character magnitude.

In summary, speed does not take into account the direction of movement, while speed implies the change of position of an object in space within a certain amount of time, that is, speed plus the direction in which said movement is produced.

Finally, the correct answer is option b. Unlike acceleration and velocity, speed is NOT a quantity that accounts for direction.

Learn more:

The wavelength is 568 nm. The Hubble telescope could resolve a crater with a diameter of approximately 108.6 m using this wavelength and assuming the same distance as the Mount Palomar telescope.

(a) To find the wavelength of light being used, we can use the angular resolution formula for a telescope:

θ = 1.22 * (λ/D)

where θ is the angular resolution, λ is the wavelength, and D is the diameter of the telescope. We know the diameter (D) of the Hale telescope is 5.08 m, and the smallest crater diameter it can resolve on the Moon is 54.2 m. We can use the small-angle approximation:

θ = crater diameter/distance to the Moon

θ = 54.2 m / 3.76 x 10^8 m ≈ 1.44 x 10^-7 rad

Now, we can solve for the wavelength (λ):

1.44 x 10^-7 rad = 1.22 * (λ / 5.08 m)

λ ≈ 5.68 x 10^-7 m

Converting to nanometers (1 m = 10^9 nm):

λ ≈ 568 nm

(b) To find the diameter of the crater that the Hubble telescope can resolve using the same wavelength, we use the same formula and the Hubble telescope's aperture diameter (D) of 2.40 m:

θ_Hubble = 1.22 * (568 nm / 2.40 m)

θ_Hubble ≈ 2.89 x 10^-7 rad

Now, we can use the small-angle approximation to find the diameter of the crater:

crater diameter = θ_Hubble * distance to the Moon

crater diameter ≈ 2.89 x 10^-7 rad * 3.76 x 10^8 m ≈ 108.6 m

So, the Hubble telescope could resolve a crater with a diameter of approximately 108.6 m using this wavelength and assuming the same distance as the Mount Palomar telescope.

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Answer: We will survive

Explanation: Caring for the earth is something that we need to do to live or survive on earth because if we don't we may not survive.

Hope this helps! :)

Hi!Caring of earth is necessary because to reduce the misuse of air, water, land, forest, minerals which affects the earth and results in problems like global warming, climatic changes, scarcity of food etc.

A device called a hygrometer is used to measure relative humidity.

Hygrometers come in various types, but the most common ones are the psychrometer and the electronic hygrometer. They measure relative humidity.

A psychrometer consists of two thermometers, one dry and the other wet, that are attached to a handle. The wet thermometer has a cotton wick wrapped around its bulb, which is soaked in distilled water. The dry thermometer measures the ambient air temperature, while the wet thermometer measures the air temperature as affected by the evaporation of the water from the wick. The difference between two readings calculates relative humidity.

Electronic hygrometers use a sensor to measure the dew point temperature, which is the temperature at which the air becomes saturated and condensation occurs. The sensor then calculates the relative humidity based on the difference between the dew point temperature and the ambient air temperature.

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Answer: 90m - 36m = 54 m from the start! Best of luck!

Answer:

117,30m

Explanation:

I think the situation here is a horizontal projection to the ground. So in order to find the distance the formula = Ut, where U is the initial speed and t is the Time of flight. To get the time of flight in this case =√2h/g where h is the height and g is gravity. so to get the time = √2×300÷9.81 =7.821 .so range =ut which is equal to the time multiplied by 15m/s =117.30m

Hi there!

To find the total distance traveled, we must find the time taken to fall down.

Ignore the horizontal velocity when dealing with the vertical direction. We can use the simplified equation:

\(t = \sqrt{\frac{2h}{g}{}}\)

Plug in the given values:

\(t = \sqrt{\frac{2(300)}{9.81}} = 7.821 sec\)

Use the equation:

Δd = vt

Plug in the time and horizontal velocity:

Δd = (15)(7.821) = 117.30m

The height of the building, given that the balloon strikes the window ledge that is 1.5 m above the ground when travelling at 29.1 m/s is 45 m

First, we shall determine the time taken to hit the window. Details below:

v = u + gt

29.1 = 0 + (9.8 × t)

29.1 = 9.8 × t

Divide both sides by 9.8

t = 29.1 / 9.8

t = 2.97 s

Next we shall determine the height from which it fell to the edge of the window. Details below:

h₁ = ½gt²

h₁ = ½ × 9.8 × 2.96²

h₁ = 43.2 m

Finally, we shall determine the height of the building. This is illustrated below:

H = h₁ + h₂

H = 43.2 + 1.5

H = 45 m

Thus, the height of the building is 45 m

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Answer:

B.  10 m

Explanation:

f = v/λ = (20 m/s)λ / (5 m) = 4 Hz    original frequency

1/2(4 Hz) = 2 Hz   half the original frequency

(20 m/s) / λ = 2 Hz

λ = (20 m/s) / (2 Hz) = 10 m

The second wavelength would increase to 10 m

Option D is the correct answer.

To demonstrate the hypothesis, the control experiment must be the nail with 8 coils.

A control experiment is the experiment that remains unchanged or unaffected by other variables.

A controlled experiment is simply an experiment in which all factors are held constant except for one: the independent variable.

For this given experiment, the number of paper clips lifted depends on the number of coils around the wire and voltage applied.

To demonstrate that for every 8 additional coils, you will be able to pick up two additional paper clips, we must have a control experiment, that is an experiment with which we will compare the out come.

This control experiment must be the nail with 8 coils.

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The reading on a scale inside an elevator that is ascending at a constant speed of 2.0 m/s would depend on several factors, such as the gravitational field strength and the local acceleration due to gravity.

In general, the reading on a scale inside an elevator that is moving at a constant velocity will be equal to the gravitational force acting on the object, which is equal to the mass of the object times the acceleration due to gravity.

However, if the elevator is accelerating upward at a constant speed of 2.0 m/s, the scale would register a greater force than the gravitational force alone. This is due to the effect of the acceleration, which would result in an additional apparent force acting on the object and registered by the scale.

This apparent force is referred to as the centrifugal force and is proportional to the mass of the object and the acceleration of the elevator. The centrifugal force acts in the opposite direction to the gravitational force and can be calculated using the following formula:

F centrifugal = m . a elevator

Where F centrifugal is the centrifugal force, m is the mass of the object, and a elevator is the acceleration of the elevator (in this case, 2.0 m/s^2).

The total force registered by the scale would be equal to the sum of the gravitational force and the centrifugal force, so the scale would read:

F total = m . g + m . a elevator

Where g is the acceleration due to gravity (approximately 9.8 m/s^2 at the surface of the Earth).

It's important to note that this is a simplified explanation and that in a real-world scenario, other factors such as air resistance and friction may also have an effect on the reading on the scale.

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Answer:

The answer is Both types of government work well in countries with large populations.

Explanation:

Answer:

its d

Explanation:

Answer:

i hope this helps!

Explanation:

Artificial Insemination (AI) is an Assisted Reproductive Technology (ART) used worldwide to deposit stored semen directly into a cow or heifer's uterus. It is a tool for improving reproductive performance and genetic quality of livestock.

source: https://nwdistrict.ifas.ufl.edu/phag/2020/05/29/tips-for-successful-artificial-insemination-of-cattle/

a) Calculation of the phase voltage (V_a)The phase voltage (V_a) can be calculated as follows:Phase Voltage Formula:V_a = V_L / √3Where,V_L is the line voltageTo calculate the line voltage (V_L), we can use the following formula:Line Voltage Formula:V_L = V_a * √3The given values are:Power (P) = 15 kVAVoltage (V) = 240 VSpeed (N) = 1000 rpmFrequency (f) = 50 HzField-winding resistance (R_f) = 4.0 ΩStator-winding impedance (Z) = 0.2 + j3.0 ΩField current (I_f) = 7.0 ARotational loss = 640 WPower factor (pf) = 0.8 (lead)First, let's determine the line current (I_L) using the formula,Power Formula:P = √3 * V_L * I_L * pf15,000 = √3 * 240 * I_L * 0.8I_L = 40.104 ARounding off, we get,I_L = 40.1 A

Next, let's calculate the internal generated voltage (E_f) using the formula,E_f = V + I_a * (R_f + jX_s)E_f = V + I_a * ZLet's find I_a, the current supplied by the generator to the load. To find I_a, we can use the formula,I_a = I_L / √3I_a = 40.1 / √3I_a = 23.155 ATherefore,E_f = 240 + 23.155 * (4 + j(3.0))E_f = 602.91 + j468.16 The magnitude of E_f is given by,Magnitude of E_f = √(602.91^2 + 468.16^2)Magnitude of E_f = 755.27 VFinally, let's calculate the phase voltage (V_a) using the formula,Phase Voltage Formula:V_a = V_L / √3V_a = 240 / √3V_a = 138.56 Vb)

Calculation of the degree per-phase complex currentThe deg per-phase complex current can be calculated using the formula,Degree per-phase complex current Formula:θ = tan^(-1) (imaginary part / real part)The complex current (I) can be calculated as follows,Complex current Formula:I = (E_f - V) / ZI = (755.27 - 240) / (0.2 + j3.0)I = 93.69 - j5.89 Therefore, the degree per-phase complex current can be calculated as follows,Degree per-phase complex current Formula:θ = tan^(-1) (imaginary part / real part)θ = tan^(-1) (-5.89 / 93.69)θ = -3.56°Therefore, the degree per-phase complex current is -3.56°.

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ANSWER:

The answer is detailed in the step-by-step explanation

STEP-BY-STEP EXPLANATION:

The division is the operation that allows us to distribute in equal parts. To solve these types of questions, an operation known as division is used, which is represented by the divided symbol ÷. On many occasions the division into equal parts is not exact, that is, some units may be left over.

As you can see in the illustration below, you can form four groups each of three candies, and there are two left over that cannot be put in any group, since they would no longer be distributed in equal parts.

The reason why there is not a solar eclipse at every new Moon is because the orbital plane of the Moon is tilted by about 5° to the ecliptic plane. The correct answer is option b.

This is the reason why there is not a solar eclipse at every new Moon. The ecliptic plane is the plane of Earth's orbit around the sun. For a solar eclipse to occur, the Moon must be in the same plane as the Sun and Earth, but because the Moon's orbital plane is tilted by about 5° to the ecliptic, it often misses alignment and a solar eclipse does not occur.

A solar eclipse is a phenomenon that occurs when the Moon passes between the Sun and Earth, casting a shadow on Earth and blocking the light from the Sun. There are three types of solar eclipses: total, partial, and annular. During a total solar eclipse, the Moon covers the entire disk of the Sun, causing the sky to darken and creating a spectacular sight.

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Answer:

i think it is 5 mg is the lowest

Explanation:

Answer:

Please translate this into Spanish! Sorry I can't :(

Explanation:

Disadvantages of Friction:

Friction produces unnecessary heat leading to the wastage of energy.

The force of friction acts in the opposite direction of motion, so friction slows down the motion of moving objects.

Forest fires are caused due to the friction between tree branches.