gravel is being dumped from a conveyor belt at a rate of cubic feet per minute. it forms a pile in the shape of a right circular cone whose base diameter and height are always the same. how fast is the height of the pile increasing when the pile is feet high? recall that the volume of a right circular cone with height and radius of the base is given by .

Answer:

Proper nouns

hope this helps =3

Answer:    

   1. The death penalty should be abolished.

   2. Human cloning should be legalized.

   3. All drugs should be legalized.

   4. Animal testing should be banned.

   5. Juveniles should be tried and treated as adults.

   6. Climate change is the greatest threat facing humanity today.

   7.  Is There Life After Death?

   8. Is Evolution or Creationism the Truth?

Explanation:

The skid distance at 100 km/h when the brakes are applied will be = 60 m.

In the same way that a velocity is the rate of change of displacement, acceleration is the rate of change of velocity. Whenever a car increases its velocity, it is said to be accelerating and when it is slowing down, it is said to be decelerating.

As skid distance is proportional to the square of the velocity, so, if the skid distance is 15 m at 50 km/h, then the skid distance at 100 km/h will be proportional to (100/50)^2 = 4 times longer.

Therefore, the skid distance at 100 km/h will be 4 * 15 m = 60 m.

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Answer:

option D

Explanation:

this is because it occurs in many different dimensions, including biological, cognitive and socioemotional. this is also the answer on apex.

Answer D would be correct for a p e x

To determine the force constant (k) of a spring, we need to perform an experiment which requires a retort stand and clamp, a spiral spring, a meter rule and different weights.

Force constant of the spring or the spring constant can be defined as the stiffness of the spring.

The setup is arranged as shown in the image attached as Fg.1.

The natural length of the spring is first recorded. Different weights are added to the spring one after the other and the extension is recorded, each time when the different weights are added simultaneously

The weight is now plotted on the vertical axis and the extension is plotted on the horizontal axis. The slope of the graph is the force constant of the spring.

The graph is shown in the image attached as Fig.2

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The spring constant, k, in Hooke's Law has units of Newton per meter since it is a constant for the force applied per unit of length. The spring constant measures how strong and stiff the spring is. Hope this answers the question. Have a nice day.

Therefore, the wavelength of a musical note with a frequency of 1,248 Hz is approximately 0.275 meters.

The speed of sound in air depends on several factors, including temperature, humidity, and atmospheric pressure. At standard temperature and pressure (STP), which is 0 °C and 1 atm, the speed of sound in dry air is approximately 343 meters per second (m/s).

To determine the wavelength of a musical note with a frequency of 1,248 Hz, we can use the formula:

wavelength = speed of sound / frequency

Substituting the values, we get:

wavelength = 343 m/s / 1248 Hz

wavelength ≈ 0.275 meters

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Adding an identical bulb B in parallel to bulb A will not change the brightness of bulb A. The total resistance of the circuit decreases, but the current flowing through each bulb remains the same, keeping the brightness of bulb A constant.

In this scenario, you have a bulb A connected to a 12-volt battery, and you are adding another identical bulb B in parallel to bulb A. We will analyze the effect on the brightness of bulb A.
When two identical bulbs are connected in parallel, the total resistance of the circuit decreases, as the inverse of the total resistance is equal to the sum of the inverses of the individual resistances.

In other words,

\(1/R_{total} = 1/R_A + 1/R_B\)
Since the bulbs are identical, we can denote their resistance as R,

so

\(1/R_{total} = 2/R\)

This gives \(1/R_{total} = R/2\), meaning the total resistance is half of the resistance of a single bulb.
According to Ohm's Law (V = IR), the current flowing through the circuit is

I = V/\(1/R_{total} \)

Substituting the values, we get I = 12 / (R/2) = 24/R.

Since the total current has doubled compared to the initial scenario with only bulb A, the current flowing through each bulb in the parallel configuration is equal and remains the same as before, i.e., 12/R.
Brightness is related to power (P), which can be calculated as

P = I²R.

Since the current flowing through each bulb remains the same in the parallel configuration, the power, and thus the brightness, of each bulb also stays the same.
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Peak voltage and total current path resistance both serve as limits on the enormous peak current that flows static charge. However, because there is little charge stored, the overall power is poor.

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Answer:

4. Wx = 42.47[N]

Explanation:

In order to solve this problem, we must first make a free body diagram, of the forces acting on the body in the inclined plane.

As we can see in the attached image, the component of the weight parallel to the surface of the inclined plane can be obtained by the sine of the angle.

\(W_{x}=5*9.81*sin(60)\\W_{x}=42.47[N]\)

To calculate the voltage across the capacitor is (1.44)R.

What is speed?

The speed at which electrons move past a particular location in an electrical circuit is known as the "current." In the most basic terms, current = flow. The international unit for measuring current is the ampere, pronounced "amp" (AM-pir).

What is voltage?

Voltage is the "pressure" under which electricity is pushed. Higher voltages result in more electricity flowing to an electronic device. The amount of voltage is measured in units known as volts (V).

I=1.4A

V=?

V=(1.44)R

R⇒ resistance

Therefore, the voltage across the capacitor is (1.44)R.

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A capacitance-type fuel quantity system measures fuel in terms of capacitance, which is the ability of a material to store an electrical charge.

The system uses probes or sensors in the fuel tanks that create a varying electrical field around them. As fuel is added or removed from the tank, the capacitance changes and the system measures this change to determine the amount of fuel remaining in the tank.

A capacitance-type fuel quantity system measures fuel in an aircraft's fuel tank based on the change in capacitance. Here's a step-by-step explanation:

1. Capacitance is the ability of a component to store electrical energy in an electric field.

2. A capacitance-type fuel quantity system consists of a capacitor with plates submerged in the fuel tank.

3. As the fuel level changes, the dielectric constant between the plates also changes, affecting the capacitance.

4. The system measures the change in capacitance and converts it to an accurate reading of fuel quantity in the tank.

In summary, A capacitance-type fuel quantity system measures fuel based on the change in capacitance caused by the fuel level variation in the tank.

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x(t)=Acos(ωt) The amplitude of the periodic motion, x (t) = A cos |A|, is the maximum magnitude of the object's displacement. is the angular frequency of motion given by 2T 2 T, where T is the period of periodic motion, or the time required to complete one full cycle.

How to Calculate the Amplitude of Simple Harmonic Motion ?

Periodic motion is defined as an object that moves back and forth over the same path. A restoring force acts to bring the moving object back to its equilibrium position. A simple harmonic motion occurs when the restoring force is proportional to an object's displacement.

The following equation describes a simple harmonic motion.

x ( t ) = A cos ( t ) | A | is the periodic motion's amplitude, which is the maximum magnitude of the object's displacement. is the angular frequency of motion given by 2 / T, where T is the period of periodic motion, the time required to complete one full cycle.

Therefore, the total period of vibrations in harmonic motion :4 | A | gives the total distance traveled in one complete cycle as an object oscillates.

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Answer:

Economic Development is the creation of wealth from which community benefits are realized. It is more than a jobs program, it's an investment in growing your economy and enhancing the prosperity and quality of life for all residents. Economic development means different things to different people.

The question asks how much current flows through the pipe when 600 ping pong balls with 6.00 microC of charge each are injected into the pipe and drift from the high-pressure end to the low-pressure end at a speed of 2.00 cm/s.

Using the formula for current (I = Q/t), where I is current, Q is charge, and t is time,

we can determine the current flowing through the pipe.

First, we need to determine the total charge by multiplying 600 balls by 6.00 microC/ball, yielding 3600 μC.

Next, determine the time by dividing the distance (10.0 m) by the speed (2.00 cm/s) to get 500 s. Lastly, current is the charge per unit time, so divide 3600 μC/500s to get 7.2 microamps.

Therefore, the amount of electric current flowing through the pipe is 7.2 microamps.

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Coal is extracted from mountain top by removal of top soil and the use of explosives.

A coal is definitely as the solid substance that is made up of mainly carbon and other constituent elements such as hydrogen, sulfur, oxygen, and nitrogen.

The uses of coal include the following:

To extract coal from the mountain top the following is carried out:

The top soil of the area involved us being removed and

Explosives are then used to expose the underlying coal seams.

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The gravitational potential of a planet-star system in circular orbit would not change if the star becomes a red giant by expanding to double its size without changing its mass. The answer is (c)

This is because the gravitational potential energy of the system depends only on the masses of the objects and their separation. The expansion of the star would not change its mass, and the distance between the planet and the star would also remain the same. Therefore, the gravitational potential energy would remain constant.

However, it is important to note that the expansion of the star would have other effects on the planet, such as changes in temperature and radiation levels, which could have significant consequences for the planet's habitability. Thus, the correct answer is (c).

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The overall change in internal energy between the initial and final states per unit mass of water needs to be determined.

The initial state of the water is given as 400 kPa and 300°C. Since the pressure remains constant during the first step, the process on the T-v diagram would be a vertical line parallel to the constant pressure line. This line represents the cooling process at constant pressure until the water exists as a saturated vapor, and the piston rests on the stops.

In the second step, the water continues to cool until the pressure reaches 150 kPa. The process on the T-v diagram would be a horizontal line parallel to the constant temperature line. This line represents the cooling process at constant temperature until the desired final pressure is reached.

To find the overall change in internal energy per unit mass of water, we need to consider the difference in internal energy between the initial and final states. This can be calculated using the specific heat capacity of water at constant pressure, which is approximately constant over the given temperature range.

The change in internal energy can be obtained by multiplying the specific heat capacity at constant pressure by the change in temperature. In summary, the cooling process of water from 400 kPa and 300°C to 150 kPa involves two steps: cooling at constant pressure until saturation, followed by cooling at constant temperature. The process curves on the T-v diagram would be vertical and horizontal lines.

The overall change in internal energy per unit mass of water can be determined by multiplying the specific heat capacity at constant pressure by the temperature difference between the initial and final states.

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When two strings that have different thicknesses are compared, it will affect only one parameter, and that is wavelength. The rest of the parameters, including wave frequency, wave speed, and tension, will be constant for both strings.The explanation behind this is quite simple.

When we talk about wave frequency, we refer to the number of complete waves that pass by a given point in a certain period of time. When strings vibrate, the number of waves produced is determined by the vibrating source. The wave frequency is independent of the string's physical properties.

Wave speed refers to the speed at which the wave travels through the medium. The wave speed depends only on the medium, in this case, the string. Since both strings are made of the same material, wave speed will remain the same.Tension, on the other hand, is related to the force that is applied to the string to make it vibrate. The amount of tension in the string, however, is not dependent on the string's thickness.

Wavelength is the distance between two consecutive crests or troughs of a wave. The wavelength depends on the wave speed and the frequency. Since wave speed and wave frequency are constant for both strings, only the wavelength will be different if the strings have different thicknesses.

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Answer: yes i think

Explanation:

Answer:

Yes?

Explanation:

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Given :

A 1200 kg car initially traveling at 20 m/s increases its speed to 28m/s.

To Find :

How much work did the cars engine have to do to cause this change.

Solution :

We know, work done is given by :

Work Done = Final Kinetic Energy - Initial Kinetic Energy

\(Work \ Done = \dfrac{mv_f^2}{2} - \dfrac{mv_i^2}{2}\\\\Work \ Done = \dfrac{1200 \times 28^2}{2} - \dfrac{1200\times 20^2}{2}\\\\Work \ Done = 230400\ J\\\\Work \ Done = 230.4 \ kJ\)

Therefore, work done by car engine is 230.4 kJ.

The amount of heat burned if you eat 300.0 grams of ice at -5°C is 150,196.5 J. When we eat 300.0 g of ice at -5°C, the amount of heat burned can be calculated using the formula, Q = m × C × ΔT.Q = m × C × ΔTWhere, m = mass of iceC = specific heat capacityΔT = change in temperature

The specific heat capacity of ice (C) is 2.09 J/g°C. As the ice is below the freezing point of water, we have to calculate the heat of fusion first, which is the amount of energy required to melt a certain amount of ice at its melting point.Taking the heat of fusion of ice as 334 J/g, we can calculate the amount of heat required to raise the temperature of 300.0 g of ice from -5°C to 0°C:Q1 = m × C × ΔTQ1 = 300.0 g × 2.09 J/g°C × (0°C - (-5°C))Q1 = 3,142.5 JNext, we calculate the heat of fusion required to melt the ice at 0°C:Q2 = m × LfQ2 = 300.0 g × 334 J/gQ2 = 100,200 JFinally, we calculate the amount of heat required to raise the temperature of 300.0 g of water from 0°C to 37°C (body temperature):Q3 = m × C × ΔTQ3 = 300.0 g × 4.18 J/g°C × (37°C - 0°C)Q3 = 46,854 J . Total amount of heat burned = Q1 + Q2 + Q3= 3,142.5 J + 100,200 J + 46,854 J= 150,196.5 J .

The heat burned when we eat 300.0 g of ice at -5°C can be calculated using the formula, Q = m × C × ΔT. Here, Q represents the amount of heat burned, m represents the mass of ice, C represents the specific heat capacity of ice, and ΔT represents the change in temperature. As the ice is below the freezing point of water, we have to calculate the heat of fusion first, which is the amount of energy required to melt a certain amount of ice at its melting point.The specific heat capacity of ice is 2.09 J/g°C. Finally, we calculate the amount of heat required to raise the temperature of 300.0 g of water from 0°C to 37°C (body temperature). The specific heat capacity of water is 4.18 J/g°C. Therefore, the amount of heat required to raise the temperature of 300.0 g of water from 0°C to 37°C can be calculated as follows:Q3 = m × C × ΔTQ3 = 300.0 g × 4.18 J/g°C × (37°C - 0°C)Q3 = 46,854 JTotal amount of heat burned = Q1 + Q2 + Q3= 3,142.5 J + 100,200 J + 46,854 J= 150,196.5 JTherefore, the amount of heat burned when we eat 300.0 g of ice at -5°C is 150,196.5 J.

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The activity of the rock alone is 12,600 ± 963 particles/hour.

To find the activity of the rock alone, we need to subtract the background count from the total count. Let's first convert both counts to rates in particles per hour:

Total count rate = (225 particles / 10 minutes) * (60 minutes / 1 hour) = 13,500 particles/hourBackground count rate = (90 particles / 6 minutes) * (60 minutes / 1 hour) = 900 particles/hour

Activity of rock alone = Total count rate - Background count rate = 13,500 particles/hour - 900 particles/hour = 12,600 particles/hour

To find the uncertainty in the activity, we can use the formula for the propagation of uncertainty:

δQ = sqrt((δA)^2 + (δB)^2)

where δQ is the uncertainty in the final quantity (activity), δA is the uncertainty in the first quantity (total count rate), and δB is the uncertainty in the second quantity (background count rate).

The uncertainties in the count rates are proportional to the square root of the number of counts, so we have:

δA = sqrt(225) * (13,500 particles/hour / 225) = 900 particles/hourδB = sqrt(90) * (900 particles/hour / 90) = 300 particles/hour

Substituting these values into the formula for δQ, we get:

δQ = sqrt((900 particles/hour)^2 + (300 particles/hour)^2) = 963 particles/hour.

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a) The net electric force on an electron located at the origin is 2.37 × 10^(-3) N, directed in the positive x-axis direction.

To calculate the net electric force, we need to find the individual forces between the charges and the electron and then add them vectorially.

The electric force between two charges q1 and q2 is given by Coulomb's law: F = k * q1 * q2 / r^2, where k is the electrostatic constant and r is the distance between the charges.

The force on the electron due to q1 is F1 = k * q1 * qe / r1^2, where qe is the charge of the electron. Similarly, the force on the electron due to q2 is F2 = k * q2 * qe / r2^2. The net force on the electron is the vector sum of F1 and F2.

Calculating the forces and summing them up, we find that the net electric force on the electron is F_net = F1 + F2 = 2.37 × 10^(-3) N in the positive x-axis direction.

b) To find the position where a positive charge q3 should be placed so that the net force on the electron is zero, we need to consider the forces between the charges. Since the net force is zero, the magnitude and direction of the force due to q3 must be equal and opposite to the forces due to q1 and q2.

The force between q3 and the electron is given by F3 = k * q3 * qe / r3^2, where r3 is the distance between q3 and the electron.

To cancel out the forces from q1 and q2, we need to have F1 + F2 = -F3. Rearranging the equation, we find q3 = -(F1 + F2) * r3^2 / (k * qe).

Substituting the values of F1, F2, r3, k, and qe into the equation, we can calculate the value of q3. The position of q3 is determined by the coordinates where it is placed.

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The total work done in lifting the bucket and rope is 187.2 foot-pounds (ft-lb).

To find the work done in lifting the bucket and rope, we need to consider two parts:

Part 1: Work done lifting the bucket (without the rope) 24 ft:

The work done in lifting the bucket can be calculated by multiplying the weight of the bucket by the distance it is lifted.

Given:

Weight of the bucket = 7 lb

Distance lifted = 24 ft

Work done lifting the bucket = Weight of the bucket x Distance lifted

Work done lifting the bucket = 7 lb x 24 ft

Please note that the units need to be consistent for the calculation. In this case, we have pounds (lb) and feet (ft).

Part 2: Work done lifting the rope:

Assuming the force required to lift the rope is equal to its weight, we can calculate the work done lifting the rope by multiplying the weight of the rope by the distance it is lifted.

Given:

Weight of the rope = 0.8 lb

Distance lifted = 24 ft

Work done lifting the rope = Weight of the rope x Distance lifted

Work done lifting the rope = 0.8 lb x 24 ft

Now, we can calculate the total work done in lifting the bucket and rope by summing up the work done in both parts:

Total work done = Work done lifting the bucket + Work done lifting the rope

Please note that the units of work are in foot-pounds (ft-lb).

Now, we can calculate the values:

Work done lifting the bucket = 7 lb x 24 ft = 168 ft-lb

Work done lifting the rope = 0.8 lb x 24 ft = 19.2 ft-lb

Total work done = 168 ft-lb + 19.2 ft-lb = 187.2 ft-lb

Therefore, the total work done in lifting the bucket and rope is 187.2 foot-pounds (ft-lb).

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The complete question is:

Find the work done In lifting the bucket A 7 Ib bucket attached to a rope is lifted from the ground Into the air by puling in 24 ft of rope at a constant speed. If the rope weighs 0.8, how much work done lifting the bucket and rope? Part1 -1 Find the work done lifting the bucket (without the rope) 24 ft . ft-Ib Part-2. Assuming the force required to lift the rope is equal to its weight; find the force function, F(x), that acts on the rope when the bucket is at height of x Ft. Part- 3 Setup the Integral that will give the work required to lift the rope 24 ft. Part -4 The total amount of work done lifting the bucket and ft-Ib.

Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 18 × 1.62

We have the final answer as

Hope this helps you

Answer:

678908765456789

Explanation: