(b) The speed of the vehicle is written as 90 km/h. State the speed in SI unit. Show your working in the space below.
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The quantity of the maximum displacement after the one-time constant has elapsed can be obtained by using the formula,x_max = A The maximum displacement after one-time constant can be determined using the formula `xmax(t) = Ae^(-t/T)`.

The quantity of the maximum displacement after the one-time constant has elapsed is equal to the constant A. How to calculate the value of A:Given the formula, xmax(t) = Ae^(-t/T)This formula can be expressed as:A = x_max/e^(-t/T)A = x_max × e^(t/T) Therefore, the value of A can be obtained by using the formula A = x_max × e^(t/T)This value of A is used to determine the maximum displacement after the one-time constant has elapsed, which is equal to `x_max = A`.

Hence, in terms of A, the maximum displacement after the one-time constant has elapsed is equal to `x_max = A`.In conclusion, the maximum displacement after the one-time constant has elapsed can be obtained by using the formula `x_max = A`, which is equal to the value of A obtained by using the formula A = x_max × e^(t/T).

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If the distracted driver is traveling at 25 miles per hour and takes a brief 1-second look at a text message without hitting the brakes, the car will travel approximately 36.67 feet during that one second.

To calculate the distance traveled in feet, we need to convert the speed from miles per hour to feet per second. There are 5280 feet in a mile, and 3600 seconds in an hour. Therefore, the conversion factor is 5280/3600, which is approximately 1.4667 feet per second. Multiplying this conversion factor by the speed of 25 miles per hour gives us the speed in feet per second, which is approximately 36.67 feet per second. Since the driver takes a brief 1-second look at the text message without hitting the brakes, the car will travel approximately 36.67 feet during that time. It is important to note that this calculation assumes a constant speed during the 1-second period and does not account for reaction time or braking distance, which may vary depending on various factors. It serves as a rough estimate of the distance traveled by the car in that specific scenario.

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Hydrolysis is a chemical reaction in which water is used to break down complex molecules into simpler ones.

This process is more common in a humid or wet climate. In such climates, water is readily available and tends to accumulate in soils and rocks, leading to the formation of aqueous solutions. These solutions can then react with various minerals and organic compounds, promoting hydrolysis. Moreover, the presence of high temperatures and abundant vegetation in tropical climates accelerates the process of hydrolysis.

This results in the decomposition of organic matter, which releases nutrients and minerals that can support plant growth. Overall, hydrolysis plays a crucial role in many environmental processes and is particularly important in regions with high moisture levels.

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Water is utilised in a chemical procedure called hydrolysis to convert complicated molecules into simpler ones.

A humid or moist climate favours this procedure more frequently. In such environments, water is easily accessible and has a propensity to build up in rocks and soils, resulting in the creation of aqueous solutions. The subsequent reactions between these solutions and different minerals and organic molecules can encourage hydrolysis. Additionally, tropical areas' high temperatures and plenty of flora hasten the hydrolysis process.

This causes organic materials to decompose, releasing nutrients and minerals that can help plants flourish. Overall, hydrolysis is critical to many environmental processes and is especially significant in areas with high levels of moisture.

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C. Each gender has differing attraction cues and priorities.

Men and women exhibit different preferences in mate selection because both have different attraction cues and priorities for their partner. These cues and priorities leads to difference in preference of life partner.

So we can conclude that Each gender has differing attraction cues and priorities.

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In terms of producing the most energy per unit of carbon dioxide released, natural gas is the best fossil fuel. Because a new crop can be planted after each harvest, biomass is a renewable resource and a low-carbon fuel.

Effects of human activities on the biophysical environment, or environmental challenges, most frequently include. Numerous human activities such as overpopulation, pollution, the burning of fossil fuels, and deforestation have an adverse effect on the physical environment. Climate change, soil erosion, poor air quality, and undrinkable water have all been brought on by changes like these.

There are three main ones that generally have an impact on most of them: the loss of biodiversity, water pollution, ocean acidification, and climate change

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If one object has a greater speed than a second object, the first not necessarily have a greater acceleration.

Acceleration is the rate of change of velocity. An object can have a greater speed but with zero acceleration if the velocity is constant.

For example, Consider a driver A driving his car at a constant speed of 60 Kmph. and crosses another driver B. Consider driver B at rest the moment the driver A crosses him. But the driver B drives faster than the driver A and catches up with driver A even though the driver A was driving at 60 Kmph when the driver B just started driving from 0 Kmph.

Therefore, if one object has a greater speed than a second object, the first not necessarily have a greater acceleration.

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When a 20N force is applied to the front of the spacecraft and a 20N force is applied to the back of the spacecraft, the net force acting on the spacecraft will be zero.

This is because the forces applied to the front and back of the spacecraft are equal in magnitude and opposite in direction, thereby canceling each other out. As a result, the spacecraft will continue drifting at its constant speed of 500m/s.

A spacecraft is a vehicle designed to operate in outer space. It can be manned or unmanned, and can travel to different parts of the solar system and beyond. Spacecraft use a combination of rocket propulsion, gravity assist, and other techniques to reach their destinations.

They are used for scientific exploration, military purposes, and commercial activities such as satellite deployment and space tourism. Spacecraft have played a crucial role in advancing our understanding of the universe and expanding our capabilities in space.

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Materials that do not go directly into the final product but facilitate its creation are known as indirect materials. These materials play a supporting role in the production process and are essential for the efficient manufacturing of the final product.

Indirect materials are often referred to as "supplies" or "consumables" and are used to support manufacturing or assembly operations. They can include items such as lubricants, cleaning agents, tools, maintenance supplies, packaging materials, and other components necessary for the production process.

While these materials are not part of the finished product itself, they are vital in ensuring smooth and efficient production operations.

Indirect materials are typically categorized as manufacturing overhead costs and are considered essential expenses for the production process. Their usage and availability are closely monitored to ensure uninterrupted production and the delivery of high-quality products to customers.

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Answer:

1100 kg

Explanation:

500 lb x 2.20lb (1kg) =1100kg

Answer:

C

Explanation:

because cooling down makes your blood flow through your body much easier and fatser.

Answer:

C.It keeps your blood flowing evenly.

Explanation:

A planes average speed between two cities is 610 km/hr. If the trip takes 2. 25 hrs, then the distance covered by a plane is  1372.5 kilometers.

To calculate the distance the plane flies, we can use the formula:

Distance = Speed × Time

Given that the average speed of the plane is 610 km/hr and the trip takes 2.25 hours, we can substitute these values into the formula to find the distance.

Distance = 610 km/hr × 2.25 hrs

To multiply these values, we need to align the units correctly. By canceling out "hrs" in the numerator and denominator, we get:

Distance = 610 km × 2.25

Multiplying 610 km by 2.25 gives us:

Distance = 1372.5 km

Therefore, the plane flies a distance of 1372.5 kilometers.

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Given that a plane's average speed between two cities is 610 km/hr and the trip takes 2.25 hrs. We are to find the distance covered by the plane The plane flies 1372.5 km

Let's find the solution to this problem .The formula for distance, speed and time isd

= s * there,

d = distance covered by the planes

= speed t

= time taken

Substituting the given values, we have610 × 2.25 = 1372.5 km

Hence, the plane flies 1372.5 km.

Given that a plane's average speed between two cities is 610 km/hr and the trip takes 2.25 hrs. We are to find the distance covered by the plane

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The two balls will collide in 2 seconds if they start 30 feet apart.

To calculate the time it takes for the two balls to collide, we first need to calculate the distance between them. The distance between two objects is equal to their speed multiplied by the time it takes them to travel that distance: velocity × time = distance

In this case, we want our distance formula to be 3 ft/s × 2 seconds = 6 ft

Then, using our formula, we can find how long it would take for the two balls to collide by plugging in our numbers: 6 ft + 5 ft = 11 ft. When we add 11 ft into both sides of our equation, we get 0 seconds, which means that when these two balls collide, they collide at the same time.

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Answer:

C. Newton

Explanation:

hope this helped:)

Part A: Gas B has the higher initial temperature.

Part B: If = 4900 J

Part C: If = 8000 J

Part A: To determine which gas has the higher initial temperature, we can compare the thermal energies of the two gases. Since the thermal energy is directly proportional to the temperature, the gas with the higher thermal energy will have the higher initial temperature. In this case, gas B has a higher initial thermal energy (8000 J) compared to gas A (4900 J). Therefore, gas B has the higher initial temperature.

Part B: To calculate the final thermal energy of gas A, we need to consider the conservation of energy during the interaction with gas B. Assuming an ideal gas behavior and no other energy transfer or work done, the total thermal energy before and after the interaction remains constant.

The initial thermal energy of gas A is given as 4900 J. Since there is no information provided about the energy exchange or transfer between the gases, we assume that the total thermal energy is conserved. Therefore, the final thermal energy of gas A would still be 4900 J.

Part C: Similarly, the final thermal energy of gas B can be calculated by assuming the conservation of energy. The initial thermal energy of gas B is given as 8000 J.

Since there is no information provided about the energy exchange or transfer between the gases, we assume that the total thermal energy is conserved. Therefore, the final thermal energy of gas B would still be 8000 J.

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Answer:

Torque by electric dipole = pEcos thita

According to the data given in the question the net force on the box is of 5 N.

All of the forces that are applied to an object are added up to form the net force. As a consequence of the fact that it (force) is a vector and therefore that two forces with identical magnitudes and opposing directions cancel each other out, the resultant force is the total of the forces, or put another way, the net force is just the total of all the forces.

Given data :

Force on box to the left side (F1) = 15 N

Force on box to the right side (F2) = 20 N

Because both forces are in opposite direction

Hence,

Net force = F2 - F1

Net force = 20 - 15

Net force = 5 N.

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Answer:

the energy usage of the clock per year is 17.2 kWh

Explanation:

Given;

power drawn by the clock, P = 2 W

duration of the clock's operation, t = 8,600 hours per year

The energy usage of the clock per year is calculated as;

E = Pt

\(E = (\frac{2}{1000} )kW \ \times \ 8,600 \ hr\\\\E = 17.2 \ kWh\)

Therefore, the energy usage of the clock per year is 17.2 kWh

Answer:

Explanation:

The initial vertical velocity is 540sin55° = 442.342103... 442 m/s

The initial horizontal velocity is 540cos55° = 309.731275... 310 m/s

In the real world, both initial velocities would be reduced by air resistance and vertical velocity will be altered by gravity.

To determine the angular displacement of the record during the given period of acceleration, we can use the equations of rotational motion.

The initial angular velocity of the record, ω₁, can be calculated by converting the initial speed from revolutions per minute (rpm) to radians per second (rad/s):ω₁ = (33 rpm) * (2π rad/1 min) * (1 min/60 s) = 11π/10 rad/s.The final angular velocity of the record, ω₂, can be calculated in the same way:ω₂ = (78 rpm) * (2π rad/1 min) * (1 min/60 s) = 13π/5 rad/s

The angular displacement, Δθ, can be calculated using the equation:

Δθ = ω₁ * t + (1/2) * α * t², where t is the time interval and α is the angular acceleration.

Given that the angular acceleration is 2.0 rad/s², we need to find the time interval, t. The change in angular velocity, Δω, can be calculated as:Δω = ω₂ - ω₁ = (13π/5) - (11π/10) = π/2 rad/s

We can use the equation Δω = α * t to solve for t:

π/2 = 2.0 * t

t = π/4 s

Now we can substitute the values into the equation for angular displacement:

Δθ = ω₁ * t + (1/2) * α * t²

Δθ = (11π/10) * (π/4) + (1/2) * (2.0) * (π/4)²

Δθ = (11π/10) * (π/4) + (π/8)

Δθ = 11π²/40 + π/8

Δθ = (11π² + 5π)/40

Therefore, the angular displacement of the record during this period of acceleration is (11π² + 5π)/40 radians.

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When two boxes of equal weight are suspended from a rope over a pulley, the tension in the rope will be equal to the weight of both boxes combined. In this case, the weight of each box is 50 N, so the combined weight of both boxes is 100 N.

The tension in the rope will be equal to this weight of 100 N, as the rope is supporting the weight of both boxes. This means that the correct answer is option C, 100N.
To understand this concept better, it is important to remember that tension is the force transmitted through a rope, string or wire when it is pulled tight by forces acting on either end. In this scenario, the tension in the rope is equal to the force needed to support the weight of both boxes, which is 100 N.
In conclusion, when two boxes of equal weight are suspended from a rope over a pulley, the tension in the rope will be equal to the weight of both boxes combined. This concept can be understood by considering the force needed to support the weight of the boxes, which is transmitted through the rope and results in tension.

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Power is the rate at which energy is used or transferred, while energy is the capacity of a system to do work. The unit of power is watts (W), and the unit of energy is joules (J).

A 60W light bulb requires 60 joules of energy per second to function. So, have 10 billion joules of energy from a lightning strike, you can calculate the amount of time it can power the light bulb by dividing the total energy by the energy required per second.

10 billion joules / 60 joules per second = 166,666,666.67 seconds

Therefore, a 60W light bulb can be powered for approximately 166,666,666.67 seconds or about 5.28 years with the energy from a single lightning strike that has a power of 10 billion joules.

However, it's worth noting that lightning strikes can vary in energy and power, so the actual duration of power may differ.

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Explanation:

Photovoltaic energy is a clean, renewable source of energy that uses solar radiation to produce electricity. It is based on the photoelectric effect—the emission of electrons when electromagnetic radiation (i.e. light) hits a material.

Answer:

electromagnetic waves strike a semiconductor , removing some of the electrons ,which form a current

Explanation:

aPe~X!

The electric force between two charged particles is decreased by increasing the distance and decreasing the charge of one of the particles. Thus, options A and D are correct.

The electric force or Coloumbic force between two charged particles is directly proportional to the product of charges and inversely proportional to the square of the distance between them. F = k (q₁×q₂) / r². The unit of force is Netwon.

From the Coloumbic force, the electric force is decreased by decreasing the number of charges, and the electric force is decreased by increasing the distance between the charges.

Hence, the ideal solution is options A and D.

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In order to get a stone slab to move, one would have to apply force to it. This can be done in a number of ways, depending on the situation. Here are a few possible laws that could be proposed for moving a stone slab:1. Newton's first law of motion: This law states that an object at rest will stay at rest unless acted upon by an external force. Therefore, to move a stone slab, one would need to apply a force to it.

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Answer:

mass

Explanation:

is a scalar quantity

Answer:

32.32857

Explanation:

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