Answer:
5.75 liters
Explanation:
5750 milliliters converted to liters is 5.75
Answer:
5.75 L
Explanation:
Step 1: Find conversion
1000 mL = 1 L
Step 2: Use Dimensional Analysis
\(5750 \hspace{3} mL(\frac{1 \hspace{3} L}{1000 \hspace{3} mL} )\) = 5.75 L
explain the interaction and roles of electromagnetic force and strong nuclear force in the nucleus of an atom
Answer:
Gravity holds stars together and keeps us on the ground. The electromagnetic force ensures the stability of atoms and makes chemistry happen. The strong nuclear force holds the kernels of matter, atomic nuclei, together, and powers the burning of stars.
Explanation:
Velocity includes both speed and
Velocity includes both speed and direction.
What is Velocity?Velocity of a particle is its speed and the direction in which it is moving.
It can also be described as the instantaneous rate of change of the particle's distance traveled, and the direction in which the distance is changing, velocity is basically speeding in a specific direction. It is a vector quantity, which means we need both magnitude (speed) and direction to define velocity. The SI unit of it is metre per second (ms-1). If there is a change in magnitude or the direction of the velocity of a body, then it is said to be accelerating.
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A person is running at an initial velocity of 3.7 m/s. If the person is accelerating at 2 m/s2, what is their final velocity after 3 seconds?
Answer:
9.7 ms⁻¹
Explanation:
The formula to find the acceleration is :
\(Acceleration=\frac{Final \:Velocity-Initial\:Velocity}{Time}\)
According to the question, we are asked to find the Final Velocity.
For that, let the Final Velocity be x.
\(Acceleration=\frac{Final \:Velocity-Initial\:Velocity}{Time}\)
\(2m/s^{2} =\frac{x-3.7m/s}{3 s}\\\)
\(2 =\frac{x-3.7}{3 }\\\)
\(2*3=x-3.7\)
\(6=x-3.7\)
\(6+3.7=x\)
\(9.7=x\)
Therefore,
Final velocity = 9.7ms⁻¹
Hope this helps you :-)
Let me know if you have any other questions :-)
Answer:
9.7m/s
Explanation:
\(\pink{\frak{Given}}\begin{cases} \textsf{ Initial velocity of a person is 3.7m/s .}\\\textsf{The acceleration of the person is 2m/s$^2$ .} \end{cases}\)
And we need to find out the velocity of the person after 3 seconds . Here we can use the First equation of motion namely ,
\(\sf \longrightarrow v = u + at \\\)
Where ,
v is the final velocity .u is the initial velocity .a is the acceleration .t is the time taken .Now substitute the respective values in the given equation ,
\(\sf \longrightarrow v = 3.7m/s + 2m/s^2*3s\\\)
Simplify ,
\(\sf \longrightarrow v = 3.7m/s + 6m/s\\\)
\(\sf \longrightarrow \boxed{\bf velocity_{After\ 3 \ s }= 9.7 m/s}\\\)
Hence the velocity after 3 seconds is 9.7 m/s .What is the first sign of dehydration? What is the first sign of dehydration?
Answer:
Two early signs of dehydration are thirst and dark-coloured urine
Explanation:
I mean..pretty self explainitory for the first one but if you dont have enough water your urine will become darker
1) What is the difference between force and net force on an object
Answer:
Net force is the sum of all the forces.
Explanation:
Force is the push or pull that causes acceleration.
Net force is the sum of all the forces acting on an object
The outcome is a force when an external force pushes or pulls on one thing as it interacts with another object. On the other hand, there won't be any evidence of force if both objects are imprisoned in one location and there isn't any outside pressure.
For example,
When Mathew pushes an automobile, they provide force to the vehicle while dissipating energy; this is shown by the fact that Mathew pushes the car with an 8 Newton (8 N) force.
The amount of force acting on an item from both sides is known as a net force whenever several forces are present, regardless of the direction they are acting from.
The resultant force is another term for this force.
For example,
James pulls a rope from one side, while Thomas pulls a rope from the other, such that a force is exerted on the rope from both sides. This pulling force from both sides is referred to as Net force.
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the presence of dark lines in the solar spectrum, the so-called fraunhofer lines, means that
The presence of dark lines in the solar spectrum, known as Fraunhofer lines, indicates that certain wavelengths of light are absorbed by elements present in the Sun's outer layer or in the Earth's atmosphere.
These lines are named after the German physicist Joseph von Fraunhofer, who first observed them in the early 19th century. These absorption lines help to identify the Sun's chemical composition and to understand its physical properties.
By studying Fraunhofer lines, scientists can determine which elements are present in the Sun and other stars, since each element has a unique spectral fingerprint.
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When you remove the lid from a food container that has been left in a freezer for several months, you discover a large collection of ice crystals on the underside of the lid. Explain what has happened.
When you remove the lid from a food container that has been left in a freezer for several months, the cold air inside the container causes the moisture inside the container to freeze onto the underside of the lid.
Food container that has been left in a freezer for several months we discover a large collection of ice crystals on the underside of the lid this is due to the formation of a layer of ice crystals as the water vapor in the container condenses and freezes onto the cold surface of the lid. This process is known as sublimation and is why you find a layer of ice crystals on the underside of the lid.
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In the absence of friction, explain why the horizontal component of a projectile’s velocity is a constant.
Answer:
This downward force and acceleration results in a downward displacement from the position that the object would be if there were no gravity. The force of gravity does not affect the horizontal component of motion; a projectile maintains a constant horizontal velocity since there are no horizontal forces acting upon it
a wave's amplitude is 0.5 meters. if its amplitude is increased to 1 meter, how much does its energy change?
If a star is a red giant, how does its surface temperature compare to that of the sun?.
The surface temperature of a red giant is around 3,000 Kelvin, which is much lower than the surface temperature of the sun, which is around 5,800 Kelvin.
What is temperature?Temperature is a physical quantity that describes how hot or cold something is. It is usually measured in degrees Celsius (°C), Fahrenheit (°F), or Kelvin (K). Temperature is an important factor in many scientific and biological processes, and can affect the rate of chemical reactions, the behavior of living organisms, and the density of air. Temperature is also used to describe the intensity of heat energy, which is measured in joules or calories.
A red giant is a luminous, cool star with a surface temperature lower than that of the sun. Typically, the surface temperature of a red giant is around 3,000 Kelvin, which is much lower than the surface temperature of the sun, which is around 5,800 Kelvin.
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clear workings please, quickly
Show workings What is the elasticity of demand for wheat bread for a price increase from \( \$ 7 \) to \( \$ 9 \) (using the mid-point method)? What does the elasticity coefficient means?
To calculate the elasticity of demand using the mid-point method, we can use the formula:
Elasticity of Demand = (Percentage change in quantity demanded) / (Percentage change in price)
First, let's calculate the percentage change in quantity demanded:
Change in quantity demanded = \( Q_2 - Q_1 \) = \( 0 - 100 \) = -100
Average quantity demanded = \( (Q_1 + Q_2) / 2 \) = \( (100 + 0) / 2 \) = 50
Percentage change in quantity demanded = (Change in quantity demanded / Average quantity demanded) * 100
Percentage change in quantity demanded = (-100 / 50) * 100 = -200%
Next, let's calculate the percentage change in price:
Change in price = \( P_2 - P_1 \) = \( 9 - 7 \) = 2
Average price = \( (P_1 + P_2) / 2 \) = \( (7 + 9) / 2 \) = 8
Percentage change in price = (Change in price / Average price) * 100
Percentage change in price = (2 / 8) * 100 = 25%
Now we can calculate the elasticity of demand:
Elasticity of Demand = (Percentage change in quantity demanded) / (Percentage change in price)
Elasticity of Demand = (-200% / 25%) = -8
The elasticity coefficient of -8 means that the demand for wheat bread is highly elastic. This means that a change in price will result in a proportionately larger change in quantity demanded. In this case, a 1% increase in price would lead to an 8% decrease in quantity demanded. Similarly, a 1% decrease in price would result in an 8% increase in quantity demanded.
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1. Define friction, and explain why it occurs.
Answer:
The simplest way to put it is that friction is a force in which there is a resistance between material elements when they slide against each other. There is no completely accurate answer as to why friction occurs, but scientists believe that it is because of tiny bumps on the surface of a material.
seawater velocity = 1478 m/s water depth = 509 m sandstone velocity = 2793 m/s thickness=1003 m mudstone velocity= 2240 m/s thickness = 373 m Air Gun Energy Source Note: Illustration is not to scale. Hydrophone Receivers seafloor sand/mud 2. In the marine seismic acquisition example shown, you are interested in two events observed in the seismic trace that is recorded at the first hydrophone. One is a first-order multiple (double bounce) off the seafloor. The other is a primary reflection from the sand/mud interface for which the energy ray-path has a takeoff angle of 9 degrees from vertical as shown. Assume horizontal rock layers and isotropic velocities. Which of the two events arrives at the hydrophone first-the primary or the multiple? Clearly show your calculations and include a simple drawing of the two- event seismic trace. 3. How long does it take for energy to travel directly from the air gun to the first hydrophone (no bounces)? 4. What is the maximum takeoff angle at which seismic energy can reflect from the sand/mud interface? Explain what happens to the energy for larger angles. 5. Explain the relative direction of travel for energy that is transmitted into the mudstone.
2. The primary reflection from the sand/mud interface will arrive first at the hydrophone. To determine which event arrives first, we need to calculate the two-way travel times (TWTT) for each event. The TWTT for the primary reflection from the sand/mud interface is:
TWTT = (2 × depth × sin (angle of incidence)) / velocity
TWTT = (2 × 509 × sin (9)) / 1478TWTT = 0.317 s
The TWTT for the double bounce off the seafloor is:TWTT = (2 × depth) / velocityTWTT = (2 × 509) / 1478TWTT = 0.689 s
Therefore, the primary reflection arrives first at the hydrophone. Here is a simple drawing of the two-event seismic trace:
3. To calculate the time it takes for energy to travel directly from the air gun to the first hydrophone, we need to determine the distance between them and divide it by the velocity of sound in seawater. Using the given values, we have:
Distance = depth + (thickness of sand/mud) + (thickness of mudstone)
Distance = 509 + 1003 + 373
Distance = 1885 m
Velocity of sound in seawater = 1478 m/s
Time = Distance / VelocityTime = 1885 / 1478Time = 1.276 s
Therefore, it takes 1.276 seconds for energy to travel directly from the air gun to the first hydrophone.
4. The maximum takeoff angle at which seismic energy can reflect from the sand/mud interface is called the critical angle. This angle can be calculated using Snell's law:
n1 × sin (angle of incidence) = n2 × sin (angle of refraction)
where n1 and n2 are the velocities of the two materials and the angle of refraction is 90 degrees (since seismic energy travels along a horizontal path once it reaches the interface).
For the sand/mud interface, the critical angle is:
n1 × sin (critical angle) = n2 × sin (90)n1 / n2 = cos (critical angle)critical angle = cos^-1 (n1 / n2)
Using the given values:
n1 = 2793 m/s (sandstone velocity)n2 = 2240 m/s (mudstone velocity)critical angle = cos^-1 (2793 / 2240)
critical angle = 35.9 degrees
Seismic energy cannot reflect from the sand/mud interface at angles greater than the critical angle. For larger angles, the energy will be transmitted into the mudstone.
5. When seismic energy is transmitted into the mudstone, it travels in all directions away from the source. However, the energy will be attenuated (reduced in amplitude) as it travels through the mudstone due to its relatively low velocity compared to the sandstone and seawater.
As a result, the mudstone acts as a barrier that blocks or reduces the energy that would otherwise be transmitted deeper into the subsurface.
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The half-life of plutonium-238 is 87.7 years.
What percentage of the atoms in a sample of plutonium-238 will remain radioactive after 263.1 years?
%
What percentage of the atoms in the same sample of plutonium-238 will have changed to a stable isotope after 263.1 years?
%
Answer:
12.5% percentage of the atoms in a sample of plutonium-238 will remain radioactive after 263.1 yr
87.5%
1. The percentage of atoms that will remain radioactive is 12.5%
2. The percentage of atoms that would have changed to a stable isotope is 87.5%
How to determine the number of half-lives Half-life (t½) = 87.7 yearsTime (t) = 263.1 years Number of half-lives (n) =?
n= t / t½
n = 263.1 / 87.7
n = 3
1. How to determine the amount remaining Original amount (N₀) = 100%Number of half-lives (n) = 3Amount remaining (N) =?N = N₀ / 2ⁿ
N = 100 / 2³
N = 100 / 8
N = 12.5%
2. How to determine the amount stabled Original amount = 100%Amount remaining = 12.5%Amount stabled =?Amount stabled = 100 – 12.5
Amount stabled = 87.5%
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Which option is an example of a pure substance?
A. The compound strontium oxide
B. Carbon atoms spread evenly throughout iron atoms
C. A vinegar and oil salad dressing
D. A disc of silicon with stones of germanium in it
if the car travels thrice(3times) around the track,who much is the total distance covered?
how can i run my car heater at maximum setting to cool down the engine if the car is overheated and the engine is stalled and just cranks without starting?
An engine can be cool down by the below steps
Leave the radiator cap on until it is coolPop the hood when there is no more steam coming out.Knowing how to cool an overheated engine is a significant expertise for any authorized driver. Having the option to analyze and fix your own issues can get you back out and about rapidly, forestall exorbitant mechanical issues, and assist you with realizing when to look for proficient assistance.
Steps which I can take to cool down an overheated engine of car:
The strain and steam inside can shoot a hazardous fly of liquid back at your face. Avoid any and all risks and leave the radiator cap on the vehicle however long you can. Assuming it feels warm to the touch, leave it.In the event that the vehicle isn't excessively hot, switch off the vehicle and pop your hood. Assuming the hood is incredibly hot to the touch or on the other hand on the off chance that you see steam, it is prudent to hold on until the hood cools before you open it as far as possible. Opening the hood disperses a portion of the intensity away from the motor.To know more about engine,visit here:
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g using the ammeter, measure and record the current leaving the battery. then, measure the current at 3 different places around the circuit. 1.) what is the current leaving the battery? 2.) does the current change, as you measure it at different places around the circuit?
The current leaving the battery is the magnitude of current flowing out of the battery, which can be measured using an ammeter. Measuring the current at three different places around the circuit will give an indication of how much the current is changing, or not, as it moves around the circuit.
For the first measurement, the current leaving the battery can be measured directly using the ammeter. To measure the current at the other two points, the ammeter needs to be connected in series with the components, such as resistors, at those points.
If the circuit is a simple series circuit, the current should be constant at all points around the circuit, as the same current flows through all components in the same direction. However, if the circuit is more complex, the current can change at different points. For example, if the circuit contains a parallel connection, then current will split at that point and different currents will flow through each parallel path.
By measuring the current at three different points around the circuit, you can see whether or not the current is constant and draw conclusions about the circuit structure and components.
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Which could be an example of an unbalanced force?
A. A plate sitting on a dining room table.
B. Earth orbiting the Sun
C. A ball at the top of a hill that is not moving.
D. A baseball that has been thrown to home plate.
Answer:i think its D
Explanation:
1. If the dielectric becomes damaged it can 'break down' like the air does when lightning strikes. What would happen to the charge on the plates?
2. Here are some statements about how an image is produced and processed in a digital camera.
A) Starting in one corner the charge on each square is moved off the CCD.
B) Light enters the camera.
C) That signal can be stored or sent to a computer or other device.
D) The charges on each square are converted into a digital signal.
E) When the light hits a square on the CCD charge is produced.
a. They are in the wrong order. Write the letters for the statements in the correct order.
b. Explain why there is a delay between taking one photograph with a digital camera and taking the next photograph.
Answer:
Explanation:
A) E) When the light hits a square on the CCD charge is produced
B) A) Starting in one corner the charge on each square is moved off the CCD
C) D) The charges on each square are converted into a digital signal
D) B) Light enters the camera
E) C) That signal can be stored or sent to a computer or other device
b. The delay between taking one photograph with a digital camera and taking the next photograph is due to the time it takes to capture the image and process it into a digital signal. This process includes the capturing of the light entering the camera, the conversion of the charges on each square of the CCD into a digital signal, and the storage or sending of the signal to a computer or other device.
7. A 50 kg skater pushed by a friend accelerates 5 m/sec 2 . How much force did the friend apply?
The force applied on the the skater by his friend is 150 newtons.
What is the applied force?A force is simply referred to as either a push or pull of an object resulting from the object's interaction with another object.
Newton's Second Law, force is expressed as;
Force = mass × acceleration
Given that;
Mass of the skater m = 50kgAcceleration a = 5 m/sec²Applied force F = ?Plug the given values into the above formula and solve for force F.
Force = mass × acceleration
Force = 50kg × 5m/s²
Force = 250kgm/s²
Force = 250N
Therefore, the applied force is 250 newtons.
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a train of length 200m passes over a bridge of length 600m how long does it take to cross the bridge with a uniform speed of 36kmph?
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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a nonsinusoidal electromagnetic wave like that described in section 32.2 has uniform electric and magnetic fields. the magnitude of the poynting vector for this wave is 11.0 w/m2w/m2 . find the magnitude of the electric field. express your answer with the appropriate units. ee
The magnitude of the electric field of the electromagnetic wave is E = 64.4 V/m
What is an electromagnetic wave?An electromagnetic wave is awave that does not require a medium to propagate
What is an electric field?An electric field is a region in which the effect of an electric force is felt.
How to find the magnitude of the electric field?Since a nonsinusoidal electromagnetic wave like that described in section 32.2 has uniform electric and magnetic fields. the magnitude of the poynting vector for this wave is 11.0 W/m².
What is the poynting vector?The magnitude of the poynting vector is given by
S = E²/μ₀c where
E = electric field, μ₀ = permeability of free space = 4π × 10⁻⁷ H/m and c = speed of electromagnetic waves = 3 × 10⁸ m/sSince we require the electric field, making E subject of the formula, we have
E = √(Sμ₀c )
Given that S = 11.0 W/m²,
Substituting the value sof the variables into the equation, we have
E = √(Sμ₀c )
E = √(11.0 W/m² × 4π × 10⁻⁷ H/m × 3 × 10⁸ m/s)
E = √(44π × 3 × 10WH/s)
E = √(1320π WH/s)
E = √(4146.9 WH/s)
E = 64.4 V/m
So, the magnitude of the electric field is E = 64.4 V/m
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Fill in the blank to complete the statement.
Electric potential difference is also known as _________.
Answer: Voltage
Explanation: EDGE 2020
Answer: Voltage
Explanation:
a system gains 772 kj of heat, resulting in a change in internal energy of the system equal to 241 kj. how much work is done?
The question concerns the first law of thermodynamics, which states that the change in internal energy of a system is equal to the heat added to the system minus the work done by the system. In this case, the system gains 772 kJ of heat, which increases its internal energy by 241 kJ. To find the work done by the system, we can use the first law equation:ΔU = Q - Wwhere ΔU is the change in internal energy, Q is the heat added to the system, and W is the work done by the system. Substituting the given values, we get:241 kJ = 772 kJ - WSolving for W, we get:W = 531 kJTherefore, the system has done 531 kJ of work. This work could have taken many different forms, depending on the nature of the system and the process by which the heat was added. For example, the work could have been used to lift a weight, compress a gas, or generate electricity.
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In this situation, the work done by the system is equal to the difference between the heat gained and the change in internal energy, or 772 kJ - 241 kJ = 531 kJ.
Work is a form of energy transfer and is defined as the product of force and displacement. In this case, the force applied to the system is unknown, but the amount of work done can be determined.
To do work, energy must be transferred to an object, such as the system in this example, and the amount of work is equal to the energy transferred. In this case, 531 kJ of energy was transferred to the system, meaning that 531 kJ of work was done.
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Why do we see Moon phases?
Answer:
The moon its self does not generate life.
Explanation:
Moon phases are determined by the relative positions of the Moon, Earth, and Sun. Instead, the Moon's phase depends only on its position relative to Earth and the Sun. The Moon doesn't make its own light, it just reflects the Sun's light as all the planets do. The Sun always illuminates one half of the Moon.
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a recent health screening revealed a low-density-lipoprotein (ldl) level over 130. which of the following should be prescribed? a. statins b. iron c. insulin d. glucagon
A recent health screening revealed a low-density-lipoprotein (LDL) level over 130. Statins are a medication that is often prescribed to lower LDL cholesterol levels. Therefore, option A, statins, should be prescribed.
Low-density lipoprotein (LDL) cholesterol is a type of cholesterol that can build up in the walls of arteries and cause plaque buildup. This can lead to atherosclerosis, which is a condition that can increase the risk of heart disease and stroke.
Statins are a type of medication that work by inhibiting the production of cholesterol in the liver. By reducing the amount of LDL cholesterol in the blood, statins can help to lower the risk of heart disease and stroke.
If the LDL level is over 130, the person should be prescribed statins. However, other factors such as family history, lifestyle habits, and other health conditions should also be taken into consideration when making a treatment plan.
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How much greater is the sound level of the explosion for a person standing at a point directly below the explosion than for a person a horizontal distance of 200 mm away
The sound level of an explosion is measured in decibels (dB). When an explosion occurs, the sound waves travel outwards in all directions from the point of origin.The intensity of sound decreases with distance.
The sound level of an explosion is greater for a person standing directly below the explosion than for a person at a horizontal distance of 200 mm away.A sound level difference of 10 dB is perceived by humans as a doubling of loudness. When the explosion is measured from a distance of 200 mm, the sound level may be measured as 100 dB. When a person is standing directly below the explosion, the sound level may be measured as 110 dB.
As a result, the sound level of the explosion is 10 dB greater for the person standing directly below the explosion than for the person at a horizontal distance of 200 mm away.
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If the mass of the box is .612 kg, what is the box's acceleration?
Answer:
Net force/.612=acceleraton
Explanation:
Need more information for a specific answer. I derived this general equation using newton's second law: F=MA. The acceleration of the object is calculated by dividing the net force on the object by its mass.
Part of the electromagnetic spectrum is visible light. Which color is at the opposite end from red on the visible spectrum?.
Answer:
violet
Explanation:fart