At a distance of 19 m from a sound source the intensity level is 98 dB. What is the intensity level (in dB) at a point 3.7 m from the source

The electrical operating conditions are typically measured with Multimeter, Oscilloscope, and Clamp Meter. Thus, option D is the accurate answer.

A multimeter is the most common and versatile instrument which is used to measure the voltage, resistance, and current passing through the conductors. IT can able to provide continuous frequency. An Oscilloscope is also a device used to measure electrical waveforms

A clamp Meter is a small handheld device that can able to measure both AC and DC currents in the circuit in digital format. It uses a small induction coil to measure the amount of current passing through the conductor.

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The complete question is:

the electrical operating conditions are typically measured with a(n):

a. Multimeter

b. Oscilloscope

c. Clamp Meter

d. All the above

Based on the length of side of the cube given, the length of the needle is 2.28 inches.

The length of the side of a cube and its diagonal are related by the formula below:

\(Length \: of \: Diagonal = \sqrt{3s}\)

where s is length of side

\(Side \: Length \: of \: the \: Cube = \sqrt{3inches}\)

\(Diagonal \: of \: a \: face \: of \: the \: cube = \sqrt{6inches}\)

\(The \: length \: of \: the \: needle = \sqrt{3\sqrt{3}} = 2.28 \: inches \\ \)

Therefore, the length of the needle is 2.28 inches

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Answer:

Its B  3in

Explanation:

Answer:

grav times mass equals force

Explanation:

Answer:

true

Explanation:

Answer:

false

Explanation:

A. Water behind a dam an example of potential energy

The energy an individual or an item has as a result of motion—in this case, the motion of the falling apple—is known as kinetic energy. Potential energy, which exists in a bike that is parked on top of a hill, is converted to kinetic energy when you start riding it downhill.

Kinetic energy may be observed in anything that moves around the house. This might happen when a glass breaks after falling off the counter, a fan circulates air on a warm day, or a cue ball rolls on a pool table. Kinetic energy is used by on-turning electrical equipment as well as by individuals moving around the house.

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TNT has a heat of combustion of -3406 kJ/mol compared to sugar's -5639 kJ/mol.

what is heat of combustion?

The quantity of heat released when a specific amount of a substance undergoes burning is known as the heat of combustion, also known as the calorific value or the energy value. In most cases, the terms "heat of combustion" and "calorific value" are interchangeable. Calorific value is the term used to describe the total amount of energy released during the complete combustion of a given mass of a substance in the presence of (an adequate amount of) oxygen under typical conditions of pressure and temperature.

TNT has a heat of combustion of -3406 kJ/mol compared to sugar's -5639 kJ/mol.

TNT is an explosive because it explodes more quickly due to its lower heat of combustion. Sugar is not explosive and will take a lot longer to heat up or burn.

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Answer:

3

Explanation:

Answer:

the answer is ....angle of reflection

The spring scale reads more than true weight as body jump because it measures the force exerted on it, which includes both weight and the additional force generated by your upward jump.

When standing motionless on the spring scale, it measured true weight, which is the gravitational force pulling you downward. However, when body jump upward, it generate an additional upward force. This force adds to the force of your weight, causing the spring scale to read more than true weight.

The spring scale works based on Hooke's law, which states that the force exerted on a spring is directly proportional to the displacement of the spring. As you jump, the spring inside the scale compresses or stretches due to the combined force of your weight and the upward force of body jump. Since the spring scale measures the total force exerted on it, it will read a value higher than your true weight.

It's important to note that the spring scale measures the total force, not the actual weight. To calculate true weight while jumping, would need to subtract the additional force generated by your jump from the reading on the scale.

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Answer:

Mechanical waves are A. Longitudinal and C. Transverse.

Explanation:

I hope this helps you.^_^

Hi!Schrodinger equation is written as HΨ = EΨ, where h is said to be a Hamiltonian operator.

Answer:

The function that describes the acceleration of the particle at time t is:

a(t) = -6 m/s^2.

Explanation:

To find the function that describes the acceleration of the particle at time t, we need to take the second derivative of the position function s(t).

Given:

s(t) = -3t^2 - 4t + 1

Taking the derivative of s(t) with respect to t will give us the velocity function v(t):

v(t) = d/dt [-3t^2 - 4t + 1]

= -6t - 4

Now, we can take the derivative of v(t) with respect to t to find the acceleration function a(t):

a(t) = d/dt [-6t - 4]

= -6

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Answer:

XZXDHF

Explanation:ZDHF

The magnetic field at a point near the center of the solenoid can be calculated using the formula B = μ₀ * n * I, where μ₀ is the permeability of free space, n is the number of turns per unit length, and I is the current in the windings.

First, we need to find the number of turns per unit length, which can be calculated by dividing the total number of turns by the length of the solenoid.
n = 600 / 15.00 cm = 40 turns/cm
Next, we need to convert the radius of the solenoid from centimeters to meters, as the unit for permeability is in Tesla meters per ampere (Tm/A).
r = 2.50 cm = 0.025 m
Now we can plug in the values into the formula: B = μ₀ * n * I
B = (4π * 10^-7 Tm/A) * 40 turns/cm * 8.00 A
B = 0.0402 T
Therefore, the magnetic field at a point near the center of the solenoid is 0.0402 T, which corresponds to option D in the given choices.

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Work is the same as energy. With the use of energy formula, the work done is 4 J

The work done on an object can be defined as the product of force and distance in the direction of the force. It is synonymous to energy and it is measured in Joule.

Given that a person lifting a 2.0-kg object from the bottom of a well at a constant speed of 2.0 m/s for 5.0 s.

The given parameters are

Work = Energy = 1/2mv²

W = 1/2 × 2 × 2²

W = 0.5 × 2 × 4

W = 4 Joules

Therefore, the much work that is done by the person is 4 Joules.

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Answer:

The sun works by nuclear fission, because there is so much pressure, it makes it vErY hOt. ( About 10,340 degrees Fahrenheit to be exact, or 5,726 degrees Celsius* )

Explanation:

Hope this helps! <3

Answer:

B

Explanation:

The Sun's shine comes from right above the Equator. The Equator is south from the Rocky Mountains, so the sunshine comes from south and the shade (the opposite direction of the sun) is north.

The peak of a wave, measured from the baseline, is its amplitude.

Energy in the form of sound is created when objects vibrate. It needs a medium to spread through. As a result, sound cannot travel through a vacuum because there is no material to conduct sound waves.

The object's rocking back and forth creates the sound. Sound vibration is what this is. Oscillatory motion is another name for it. Oscillation describes the predictable rhythmic back-and-forth movement.

The height of a sound wave is quantified by its amplitude. The loudness or the greatest separation of the medium's vibrating particles from their initial positions are two ways to describe a sound wave's amplitude.

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The sensor that would be most useful for helping a drone remain level as it flies is the Gyro sensor.

A Gyro sensor, also known as a gyroscope, measures the angular velocity or rate of rotation around an axis. This is particularly useful for drones as it can detect any changes in orientation and help the drone maintain its level flight. By measuring the rate of rotation around each of its axes, a Gyro sensor can detect any changes in the drone's orientation and provide feedback to the flight controller to adjust the drone's motors accordingly.

Accelerometers can also be used in drones to detect changes in acceleration and tilt, but they are not as effective as gyroscopes in detecting changes in orientation. Magnetometers are used for detecting magnetic fields and can be used for navigation purposes, but they are not as useful for maintaining level flight. Aero sensors are not commonly used in drones and are more useful for measuring atmospheric conditions.

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Answer:

reduce, reuse, and recycle paper,plastic, electricity, glass, fiber

Answer:

tbh vector does not have any direction at all the answer is 0

Answer: A: mesosphere

Explanation:

Answer: Domestic Violence/ Assult

Explanation: SHe is being physically hit by someone she does not know making this domestic violence, and assult

The scenario described, where Nora was mugged by a stranger in the hospital parking garage, depicts a form of interpersonal violence known as assault or physical violence.

Assault refers to the intentional act of causing physical harm or injury to another person without their consent. In this case, Nora was targeted by a stranger who engaged in violent behavior by mugging her, which involved a physical altercation and the threat or use of force to take her belongings.

Physical violence is a broader term that encompasses all forms of harmful physical contact, regardless of the intention behind it. This can include not only acts of assault, but also behaviors such as sexual violence, domestic violence, and child abuse.

In any case, violence of any kind is an unacceptable and potentially dangerous behavior that can cause serious harm to individuals and communities. It is important to raise awareness about the issue, and to promote education and prevention strategies to help reduce the incidence of violence in our society.

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While there is no direct relationship between speed and thinking distance, higher speeds can result in longer thinking distances due to the increased reaction time needed by the driver.

The relationship between speed and thinking distance is not a direct one, as thinking distance is primarily influenced by the driver's reaction time rather than the actual speed of the vehicle. Thinking distance refers to the distance traveled by a vehicle during the driver's reaction time after perceiving a hazard.

However, there is an indirect relationship between speed and thinking distance in the sense that higher speeds generally result in longer thinking distances. When a vehicle is traveling at a higher speed, the driver needs more time to process information, make decisions, and react to potential hazards. Therefore, a higher speed can lead to a longer thinking distance.

It is important to note that thinking distance is just one component of the total stopping distance, which also includes braking distance. Braking distance is directly influenced by the speed of the vehicle. Higher speeds require longer braking distances to bring the vehicle to a stop.

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Answer:

f = 1.18 x 10¹¹ Hz

Explanation:

The equation used to find frequency is:

f = c / w

In this form, "f" represents the frequency (Hz), "c" represents the speed of light (3.0 x 10⁸ m/s), and "w" represents the wavelength (m).

Since you have been given the value of the constant (c) and wavelength, you can substitute these values into the equation to find frequency.

f = c / w                                                      <---- Formula

f = (3.0 x 10⁸ m/s) / w                                 <---- Plug 3.0 x 10⁸ in "c"

f = (3.0 x 10⁸ m/s) / (2.55 x 10⁻³ m)            <---- Plug 2.55 x 10⁻³ in "w"

f = 1.18 x 10¹¹ Hz                                         <---- Divide

joule is not the unit of power.

In physics, power measures the rate of transfer of electrical energy through a circuit per unit of time. It is denoted by P and is measured using the SI unit of power (watts or 1 joule/second). Electrical energy is usually supplied by batteries and produced by generators. Power refers to the rate per unit of time at which electrical energy is transferred through a circuit. When we talk about units of power, it is joules per second or joules per unit of time. A watt is a unit of electrical power equivalent to 1 ampere under 1 volt of pressure.

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The buoyant force acting on the block is approximately 80.91 Newtons (N).

To determine the buoyant force acting on the block, we need to consider Archimedes' principle, which states that the buoyant force experienced by an object immersed in a fluid is equal to the weight of the fluid displaced by the object.

The buoyant force (Fb) can be calculated using the formula:

Fb = ρ * V * g,

where ρ is the density of the fluid, V is the volume of the fluid displaced by the object, and g is the acceleration due to gravity.

In this case, the block is completely submerged in water, so the fluid is water with a density of approximately 1000 kg/m³.

To find the volume of the fluid displaced by the block, we can use the volume of the block itself, as the submerged portion of the block will displace an equivalent volume of water.

The volume (V) of the block is given by:

V = length * width * height.

Substituting the given dimensions, we have:

V = 0.105 m * 0.233 m * 0.329 m.

Calculating this, we find:

V ≈ 0.00824 m³.

Now, we can calculate the buoyant force:

Fb = 1000 kg/m³ * 0.00824 m³ * 9.8 m/s².

Evaluating this, we get:

Fb ≈ 80.91 N.

Therefore, the buoyant force acting on the block is about 80.91 Newtons (N).

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To maintain a wave speed of 2 m/s on a cable, we need to calculate the tension force required. The tension force needed to maintain a wave speed of 2 m/s on the cable is 8 N.

The wave speed on a cable can be determined using the formula v = √(T/μ), where v is the wave speed, T is the tension force, and μ is the linear mass density of the cable.

First, we need to calculate the linear mass density μ, which is the mass per unit length of the cable. It can be obtained by dividing the mass of the cable by its length: μ = mass/length = 80 kg / 40 m = 2 kg/m.

Next, we rearrange the wave speed formula to solve for the tension force T: T = μ\(v^2\).

Substituting the given values, we have T = (2 kg/m) * (\(2 m/s)^2\) = 8 N.

Therefore, the tension force needed to maintain a wave speed of 2 m/s on the cable is 8 N.

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