The density of lead is 19,300 kg/m3 . how many times the density of gold nuclei is greater than the density of gold?

Answer:

2 seconds lol im just a kid but I know these lol who has tiktok

Ultra = X-ray

Explanation:

how are things going to paint the roof for beginners painting and decorating the whole house so I'm going away with a few sports mates for a couple nights for beginners but will have a look painting at a time and see what is going to be Strong enough

Explanation:

Noise is sound with a continuous structure. Music is composed of sounds with a fundamental frequency and overtones. Noise is composed of sounds with frequencies that range continuously in value from as low as you can hear to as high as you can hear — not necessarily at equal intensity, however.

Answer:

It is 6.02 kilograms.

Explanation:

One kilogram is equal to 9.81 Newtons. To convert Newtons to Kilograms,divide by 9.81. For instance, 20 Newtons would be equivalent to 20/9.81 or 2.04 kilograms

Answer:

a solution

Explanation: A solution is a homogeneous mixture consisting of a solute dissolved into a solvent .

The  true statement about capacity utilization and load factor is no inherent relationship, necessarily.

Option (a) is correct.

There is no inherent relationship between capacity utilization and load factor. The two concepts measure different aspects of resource utilization and can vary independently of each other.

Capacity utilization refers to the extent to which a system, facility, or resource is being used in relation to its maximum potential. It is typically expressed as a percentage, indicating the ratio of actual usage to the maximum capacity.

Load factor, on the other hand, specifically pertains to the ratio of average load or demand to the maximum capacity over a given period, often measured for power systems or transportation. It represents the average utilization of the system during a defined time frame.

While capacity utilization provides a broader measure of overall resource usage, load factor focuses on the average demand relative to the maximum capacity. The values of capacity utilization and load factor can vary independently based on factors such as operational efficiency, demand patterns, or production schedules.

Therefore, the correct option is (a).

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Complete question is:

Which of the following is true about capacity utilization and load factor?

a) No inherent relationship, necessarily

b) Capacity utilization is always higher than the load factor

c) Capacity utilization is always lower than the load factor

d) Capacity utilization is always equal to the load factor

Answer:

B: Pure Substance

Explanation:

Answer:

1.6m/s²

Explanation:

It was difficult to type the answer here

During a race, a horse's speed increases from 65 m/s to 73 m/s during the last 5.0 seconds of that race, 1.60 m/s² was the rate of acceleration during this time.

The rate of change of velocity is defined as acceleration. Acceleration usually indicates that the speed is changing, but this is not always the case. When an object moves in a circular path at a constant speed, it is still accelerating because its velocity direction changes.

Acceleration occurs when the speed of an object increases or decreases, or when it changes direction. Acceleration, like velocity, has two types: average and instantaneous.

a = v - v₀ / t

Then, a = 73 × 65 / 5

a = 1.60 m/s²

Thus, 1.60 m/s² was the rate of acceleration during this time.

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The angular speed of the bicycle wheels is 3.03 radians per second.

To find the angular speed of the bicycle wheels, we can use the formula:

angular speed = linear speed / radius

First, we need to convert the radius from centimeters to meters:

66 cm = 0.66 m

Now we can plug in the given values:

angular speed = 2.0 m/s / 0.66 m
angular speed = 3.03 rad/s

Therefore, the angular speed of the bicycle wheels is 3.03 radians per second. This means that each wheel is rotating at a rate of 3.03 revolutions per second. It's important to note that the wheels do not slip, meaning that their point of contact with the ground is always stationary relative to the ground. This allows us to use the formula for the angular speed of the wheels based on their linear speed and radius.

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Spurs are probably the result of self-sustaining star formation.

The gigantic form of the magnificent doppelganger spiral patterns that spiral outward from the galactic cores gave spiral galaxies their name. These light arms of spiral galaxies are frequently seen in optical pictures to be speckled with bright star-forming areas at regular intervals.

Smaller structures spread forth and rearward into the interarm area from each major spiral arm. Spiral-arm also known as spurs are the name given to these substructures. Sometimes the spurs are also filled with star-forming clusters. As a consequence, we may draw the conclusion that spurs most likely emerge from self-sustaining star formation.

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80Sec or 1.33 min time taken by train to cross a bridge with a uniform speed of 36 kmph.

Given data,

length of bridge = 600m

length of train = 200m

Length of bridge + Length of train is the total distance travelled by train to cross the bridge.

So, 600+200 = 800m = 0.8km

Now, applying the formula for time,

\(time =\frac{distance}{speed}\)

\(time = \frac{0.8}{36}\)

time = 0.022hours

time in seconds= 0.022×60×60

time in seconds= 1.33×60

time in seconds= 80seconds

Therefore, 80Sec or 1.33 min time taken by train to cross a bridge with a uniform speed of 36 kmph.

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Answer:

According to this theory:

Each and every molecule of a magnetic substance is a complete magnet in itself, having a north pole and a south pole of equal strength.

In an unmagnetized substance, the molecular magnets are randomly oriented such that they form closed chains.

When the substance is magnetized, the molecular magnets are realigned so that north poles of all molecular magnets point in one direction and south poles of all molecular magnets point in the opposite direction.

When all the molecular magnets are fully aligned, the substance is said to be saturated with magnetism

During heating the magnetized specimen, molecular magnets acquire some kinetic energy. Some of the molecules may get back to the closed chain arrangement. That is why magnetism of the specimen would reduce on heating.

The current, voltages, resistances of the circuits in problem 1, 2, and 3 are given by Ohm's law as follows;

Questions 1—3 In Problems

Ohm's law states that the current, I in a circuit or between two points in a circuit is proportional to the voltage, V, across the circuit or the part of the circuit.

Mathematically, V = I × R

Where;

R = The circuit resistance to current

1. The current in the hair dryer draws from the circuit = 10–A

The voltage of the circuit to which the hair dryer is connected = 120–V

From Ohm's law, we have;

V = I•R

R = V/I

I = 10 A

V = 120 V

Therefore;

R = 120 V/(10 A) = 12 Ohms

2. The battery resistance = 2 Ohms

The voltage of the battery = 1.5–V

The current in the circuit is therefore found as follows;

R = 2 Ohm

V = 1.5 V

The current, I = V/R

Therefore;

I = (1.5 V)/(2 Ohms) = 0.75 A

3. The current supplies by the battery, I = 0.25 A

The battery resistance, R = 48 Ohm

The voltage of the battery, V = I × R

Therefore;

V = 0.25 A × 48 Ohm = 12 V

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Answer:

1. He feels worse off.

2. His awareness of the grim situation.

Explanation:

Elie Weisel's memoir "Night" is about the persecution of the jews by the Germans during the worst genocide in world history. The events leading up to the Holocaust and the resulting after-effects through his personal experience provides one of the most prominent witness accounts of the crime.

When Weisel states that "lying down wasn't an option", he reveals how congested space was in the cabin. The "lucky ones" were able to breathe in the fresh air from the window, while the rest have to be satisfied with wherever they are. This reveals his realization of the grim situation inside the over-packed cabin, where there is hardly any space to move.

And when he said that they "never ate enough to satisfy our hunger", he presents the realization and understanding of the grim situation in the train's cabin where eating is not a luxury, but a necessity to stay alive. And for that, they know they have to "economize, to save for tomorrow" rather than just stay full once.  

Answer:

1. He feels worse off.

2. His awareness of the grim situation.

Explanation:

The time it takes for light to travel 4.25 ft in a vacuum is approximately 4.3227 nanoseconds.

To determine the time it takes for light to travel a distance of 4.25 ft in a vacuum, we can use the speed of light as a conversion factor. The speed of light in a vacuum is approximately 299,792,458 meters per second.

First, we need to convert the distance from feet to meters:

4.25 ft = 4.25 * 0.3048 meters (since 1 ft = 0.3048 meters)

= 1.2956 meters

Next, we can calculate the time using the formula:

Time = Distance / Speed

Time = 1.2956 meters / 299,792,458 meters per second

Calculating the value gives:

Time ≈ 4.3227 x 10^(-9) seconds

To express the time in nanoseconds, we multiply the value by 10^9:

Time ≈ 4.3227 x 10^(-9) seconds * 10^9

≈ 4.3227 nanoseconds

Therefore, it takes approximately 4.3227 nanoseconds for light to travel a distance of 4.25 ft in a vacuum.

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The number of water molecules in the hot tub is 1.47×10²⁷ molecules

The following data were obtained from the question:

The number of water molecules in the hot tub can be obtained as follow

Number of molecules = Mass of water / mass of one molcule

Number of molecules = 4.38×10³ / 2.98×10⁻²⁴

Number of molecules = 1.47×10²⁷ molecules

Thus, number of molecules in the hot tub 1.47×10²⁷ molecules

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Answer: 18.64114

Explanation:

Answer:

Explanation:

Films are widely popular and their audio visual nature provides them a pervasive power for social influence. Therefore, they have the potential to play an important role as a medium of entertainment, information and education and as a catalyst for social change. Films are popular because they entertain.

Movies are about sitting in a theatre, watching something- watching a story unfold with people you don't know- watching that happen and emoting an emotion knowing that for those two hours or so, when one walks into that theatre, he/she don't have to worry about what is going on outside.

The frequency of the sound heard by the driver of car B from car A is mathematically given as

F=738.6hz

Question Parameters:

A car moves at 72 km/h and car B moves at 90 km/h, approaching each other. A car honked with a frequency of 650 Hz

the speed of the sound waves in the air is 350 m/s,

Generally, the equation for the Frequency   is mathematically given as

\(F=f'(\frac{v+vob}{v-vsource})\)

Therefore

\(F=650(\frac{350+25}{350-20})\)

F=738.6hz

In conclusion, the frequency of the sound is

F=738.6hz

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The nuclear reaction becomes:

U₉₂²³⁸ → Th₉₀²³⁴+ α⁴₂

Thus, here (i) 234 and (ii) 90

Uranium-238 decays to thorium-234 via alpha decay. (The numbers after the chemical names indicate the number of protons and neutrons.) Uranium-238 loses two protons and two neutrons in this process, forming the isotope thorium-234.

Reactors based on thorium are safer since the reaction is simple to stop and does not need to be carried out under intense pressure. When compared to uranium reactors, thorium reactors produce significantly less waste, and the waste produced is far less radioactive and far shorter in duration.

Now, here (i) 234 and (ii) 90

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Answer:

(i) 234 and (ii) 90

Answer: The particles of a solid are [generally] closest together while those of a gas are farthest apart

Explanation:

Given:

ratio of energy is 2√2 : √3

Apply:

Where:

q = charge of proton

v= speed of proton

r= radius of circular path

T= time period of revolution

Kinetic energy (K)

K= 1/2mv^2

From both equations:

Tα1/k

K1:K2 = 2√2 : √3

T1:T2 = √3:2√2

Answer: √3:2√2

The time of flight of the ball is 1.1 s and the maximum height attained is 1.42 m.

The time of flight refers to the time that it takes for the ball to remain in air. The time of flight is given by;

T = 2usinθ/g

T = 2 * 13 m/s (sin24)/9.8 m/s^2

T = 1.1 s

The height that it reaches is obtained from;

H = v^2sin^2θ/2g

H = 27.96/19.6

H = 1.42 m

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Answer:Potential energy can transfer into other forms of energy like kinetic energy. Kinetic energy is energy an object has because of its motion. ... If released, as the ball moves faster and faster toward the ground, the force of gravity will transfer the potential energy to kinetic energy

Explanation:

Answer:

Thể tích cuối cùng, V2 = 2 L

Explanation:

Cho các dữ liệu sau đây;

Khối lượng ban đầu = 10 L

Áp suất ban đầu = 10⁴ = 10000 Pa

Áp suất cuối cùng = 5 * 10⁴ = 50000 Pa

Để tìm tập mới hoặc tập cuối cùng, chúng ta sẽ sử dụng định luật Boyle;

Để tìm tập mới V2, chúng tôi sẽ sử dụng định luật Boyles.

Boyles phát biểu rằng khi nhiệt độ của khí lý tưởng được giữ không đổi, áp suất của khí tỉ lệ nghịch với thể tích mà khí chiếm giữ.

Về mặt toán học, định luật Boyles được đưa ra bởi;

\( PV = K\)

\( P_{1}V_{1} = P_{2}V_{2} \)

Thay vào phương trình, ta có;

\( 10000 * 10 = 50000V_{2} \)

\( 100000 = 50000V_{2} \)

\( V_{2} = \frac {100000}{50000}\)

\( V_{2} = 2 \)

Thể tích cuối cùng, V2 = 2 L

Vector represents the average velocity of the bird is option D.

Magnitude refers to the numerical value of the quantity, while direction refers to the orientation or path that the quantity follows. Vectors are often represented graphically using arrows, with the length of the arrow indicating the magnitude of the vector and the direction of the arrow indicating its direction.

Vector quantities obey the rules of vector algebra, which allows them to be combined and manipulated in various ways. For example, two vectors can be added together to find their resultant vector, and a vector can be multiplied by a scalar to change its magnitude.

It is important to distinguish vector quantities from scalar quantities, which have only magnitude and no direction. Examples of scalar quantities include mass, temperature, and energy.

In physics, vector quantities are used to describe the behavior of objects in motion, the forces acting upon them, and the changes in their state. Understanding vector quantities is essential for a wide range of scientific and engineering applications.

Vector represents the average velocity of the bird is option D.

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Option D. is the correct answer for the given question. To determine the average velocity of the bird, we need to find the displacement of the bird over some time interval.

From the diagram, we can see that the bird starts at position A and ends at position B, so the displacement of the bird is the vector from A to B.

To find this vector, we can break it down into its components:

Δx = xB - xA = 6 m - (-2 m) = 8 m

Δy = yB - yA = 3 m - 1 m = 2 m

So the displacement vector is:

Δr = (8 m) i + (2 m) j

Now we need to divide this displacement by the time interval to find the average velocity. Let's say the time interval is 4 seconds. Then the average velocity vector is:

v = Δr / Δt = (8 m / 4 s) i + (2 m / 4 s) j = 2 m/s i + 0.5 m/s j

So the vector that represents the average velocity of the bird is 2 m/s i + 0.5 m/s j, which is the vector pointing to the right with a slight upward angle.

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The exponential form of the given number is (-7)⁴. 6⁵.

Exponent is the term used to describe a way to represent huge numbers using powers. In other words, the exponent describes how many times a number has been multiplied by itself.

A number that appears as a superscript over another number is the exponent. In other words, it means that the base has been elevated to a particular level of power. Other names for the exponent are index and power. mn indicates that m has been multiplied by itself n times if m is a positive number and n is its exponent which can be said as the m raised to n.

The given numbers are,

(-7) . (-7) . (-7) . (-7) . 6. 6 . 6 . 6 . 6

So, 7 is multiplied by itself 4 times and 6 is multiplied by itself 5 times.

Therefore, it can be written in the exponential form as,

(-7)⁴. 6⁵

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