The electrical signal is the representation or encoding of the acoustic waveform. It carries the information from the acoustic waveform and allows it to be transmitted.
In simple terms, an acoustic waveform is the physical representation of sound waves in the air. It is the pattern of compressions and rarefactions that we perceive as sound. However, electronic devices such as microphones, speakers, and audio recording systems work with electrical signals. These devices convert the acoustic waveform into an electrical signal to process and transmit it.
The electrical signal is created by transducers like microphones, which convert the sound waves into electrical voltages. These voltages represent the varying amplitude and frequency of the acoustic waveform. The electrical signal carries this information and can be amplified, manipulated, stored, and transmitted using electronic circuitry.
Once the electrical signal reaches a speaker or headphones, it is converted back into an acoustic waveform. The speaker's diaphragm vibrates in response to the electrical signal, recreating the original sound waves, and we hear the sound.
In summary, the electrical signal serves as the intermediary between the acoustic waveform and electronic devices, enabling the processing, transmission, and reproduction of sound.
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Helium is in group 18 of the periodic table. How is helium different from the other elements in this group?.
Helium is the only element in group 18 that is a noble gas. It does not react with other elements and does not form compounds.
What is noble gas?Noble gases are a group of elements found in the periodic table that are known for their inertness, or resistance to chemical reactions. They are the most stable elements in their respective rows. The noble gases are helium, neon, argon, krypton, xenon, and radon. They have all been discovered in nature, though some only in trace amounts. Noble gases have unique atomic structures, with their outermost electron shells completely filled with electrons.
Helium also has the lowest boiling point and melting point of the elements in group 18. In comparison to the other elements in group 18, helium is the lightest and least dense.
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What is globalization
Answer: the process by which businesses or other organizations develop international influence or start operating on an international scale.
Explanation:
Answer:
Globalization is the free movement of goods, services and people across the world in a seamless and integrated manner. Globalization can be thought of to be the result of the opening up of the global economy and the concomitant increase in trade between nations.
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A twig at rest in a pond moves with a speed of 0.40 cm/s
opposite a 2.5 g snail, which has a speed of 1.2 cm/s.
What is the mass of the twig?
The mass of the twig is determined as 7.5 g.
What is the mass of the twig?The mass of the twig is calculated by applying the principle of conservation of linear momentum as shown below.
This principle states that the sum of initial momentum of a system is equal to the sum of the final momentum of the system, provided the system is isolated.
Pi = Pf
where;
Pi is the momentum of the twigPf is the momentum of the snail(0.4 x m ) = ( 1.2 x 2.5 )
m = ( 1.2 x 2.5 ) / ( 0.4 )
m = 7.5 g
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Imagine that you are a skeptic of Alfred Wegener. Write a one-paragraph statement to criticize his work. Your criticism must include challenges about:
Why could the continents NOT possibly move the way Wegener is describing?
How the fossils could naturally be located in the places Wegener found them, without the continents moving.
Why Wegener is not qualified to be proposing theories in the fields of geology and Earth history.
Inability of Wegener to provide adequate explanation of the forces responsible for continental drift and prevailing belief that the earth was solid and immovable resulted in scientific dismissal of his theories.
Why could the continents not move the way Wegener is describing?The primary reason that Wegener's hypothesis could not be accepted was because he suggested no mechanism for the moving of continents. He thought that the force of Earth's spin was sufficient enough to cause continents to move, but geologists knew that rocks are too strong for this to be true.
Wegener is not qualified to propose theories in the fields of geology and history of Earth because there was no mechanism available to endorse his proposals and offer convincing and truthful explanation.
The fossils could naturally be located in the places Wegener found them because fossils are mostly found where sedimentary rocks of the right age are exposed, such as river valleys, cliffs and hillsides.
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how does conductance change with charge density?
Smaller ions have greater conductivity than larger ions.
How does conductance change with charge density?The molar conductivity is the conductivity per mole: as the concentration grows, so does the number of charge carriers, and hence the conductivity. The molar conductivity would be constant if the quantity of ions scaled perfectly with the concentration of electrolyte.
However, the conductivity per ion decreases because ions do not act as totally independent charge carriers: they combine, and the rate at which they combine increases as the number of ions increases. This behavior leads to Kohlrausch’s Law (the law you mentioned at the beginning of your query), which is only applicable for strong (completely dissociated) electrolytes.
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Which explains how lightning is formed?
A two objects with the same electric charge rub together
B electrons flow through a conductor
C raindrops conduct electricity from clouds to the ground
D two objects with different electric charges rub together
The lightning is formed by two objects with different electric charges rub together Hence, option (D) is correct.
What is lightning?Charges created by rubbing can be used to explain lightning. The water droplets flow downhill during a thunderstorm while the air currents rise higher.
As a result of this process, the positive charges gather close to the cloud's upper edge, while the negative charges gather close to the cloud's lower edge and also close to the ground.
The charge's magnitude increases significantly as it builds up. Airborne water droplets serve as a conductor for this charge.
Lightning and thunder are produced when these charges flow to meet.
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Answer: C raindrops conduct electricity from clouds to the ground
Explanation:
What is the net torque on the pulley about the axle?
τnet = (TL ‐ TR)R is the needed net torque just on pulley about the axle.
How do pulleys work?A flexible line, cord, rope, chain, or belt is fastened to the rim of a wheel termed as a pulley. To transport motion and energy, pulleys may be employed singly or in combination.
If TL and TR are really the stresses pulling there at left and the sides of the pulleys, respectively, the net torque here on pulley would then be defined as net = (TL - TR)R, in which R represents the radius of pulley (see Fig. 1). It is believed that positive torque moves in a clockwise direction.
This means that τnet = (TL ‐ TR)R is the necessary formula for net torque.
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sound wave is emitted underwater by a device. This device measures the reflection time. This description best illustrates
echolocation technology
sonar technology
refraction technology
reflection technology
Arocket mass 1500kg if the engines provide a force 2000N, what would its accelerations..
Please
Answer:
Force=mass × acceleration
or, acceleration=Force/mass
=2000/1500
:. Acceleration=1.33 m/s²
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A baseball diamond is a square with sides of 90 feet. What is the shortest distance.
The shortest distant will be the diagonal of the square. The value of the diagonal of the square is 127.3 feet.
How to find the diagonal value?Square is a figure with a four sides that has the same value for each. The formula for its diagonal is sides√2. As per given sides is 90 feet. The calculation will be:
Diagonal = sides√2
Diagonal = 90√2
Diagonal = 90 x 1.41421356237
Diagonal = 127.279220613
Let round the value. So, the diagonal = 127.3 feet. You can also determine diagonal value from phytagoras theory by dividing the square into 4 triangle then calculate the diagonal.
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Two carts with masses of 4.0 kg and 3.3 kg move toward each other on a
frictionless track with speeds of 5.9 m/s and 4.6 m/s, respectively. The carts stick
together after colliding head-on. Find their final speed. Answer in units of m/s.
Crash of two vehicles that are moving directly toward each other
What is the final speed?This is a difficulty with momentum conservation. Each cart has a starting momentum equal to its mass multiplied by its velocity. When they hit and stick together, they become a single unit of combined mass of 4 kg + 5 kg, and their new velocity must account for momentum conservation.
Assume the 4 kilogram cart is coming from the left and the 5 kg cart is coming from the right. This results in a velocity of +12 m/s for the 4 kg cart and a velocity of -9 m/s for the 5 weight cart.
The carts’ early moments are
(4 kg * 12 m/s) = 48 kg * m/s
And
-45 (kg * m)/s = (5 kg * -9 m/s)
This results in a total starting momentum of 48 + (-45) = 3 (kg * m)/s.
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The amplitude of pule A i 20cm and that of pule B i 10 Cm what i the maximum of the reultant pule
Maximum resultant pulse will be 22.36 cm, if the amplitude of pulse A is 20 cm, and that of pulse B is 10 cm.
Equations of two superimposing waves with a phase difference of π/2, are:
y₁ = a₁sin(ωt) and y₂ = a₂sin(ωt + π/2) = a₂cos(ωt)
The equation of the resultant wave will be:
y = y₁ + y₂
y = a₁sin(ωt) + a₂cos(ωt)
Assuming a₁ = acos(Φ), a₂ = asin(Φ)
So, y = asin(ωt+Φ)
(a₁)² + (a₂)² = a²(sin²Φ + cos²Φ)
(a₁)² + (a₂)² = a²
a = √((a₁)² + (a₂)²)
a = √(20²+10²)
a = √500
a = 22.36 cm.
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Why do iron filings arrange around a U-shaped magnet?
Iron filings arrange around a U-shaped magnet because of the magnetic field generated by the magnet. The magnetic field creates invisible lines of force that extend out from the north pole of the magnet to the south pole. The iron filings align themselves along these lines of force, which form a pattern that is often described as "field lines." The U-shaped magnet has two poles, north and south, and the field lines extend from the north pole to the south pole, passing through the center of the U-shape. The filings align along these lines of force, forming a pattern that is often described as "field lines". As the filings come in contact with the magnetic field, they align in a pattern that is determined by the strength and direction of the magnetic field.
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During which time period do you have to use your head lights?
Answer:at night.
Explanation:
Which of the following is a metric unit of measure that measures length and distance?a.) Footb.) Areac.) Meterd.) Yard
Meter is a metric unit of measure that measures length and distance because area is not any of the measurement unit.
We always measure the physical properties of a thing using particular units. For example, the unit for measuring your bodyʼs mass is the pound and the unit for measuring your height is inches. But, of course, itʼs not as simple as that. If you use the metric system you measure your mass in kilograms, not pounds, and you measure your height in centimeters.
And even if you measure your height in inches, you are probably mix two different units: feet and inches. Although we can measure the mass and lengths of the devices and we deal with in computer architecture, we are typically more interested in a third property.
Time (measurement unit: the second) and the related properties of period and its reciprocal, frequency. Furthermore, computers manipulate physical representations of information, which has its own measurement unit.
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What would probably happen if you tried to bake bread without using yeast?Why?
The thing that will probably happen if you tried to bake bread without using yeast is that dough may not rise as tall as you're used to because of the lackof the yeast composition in the dough.
What occurs if yeast is absent?Lemon juice and baking soda mixed in equal parts can be used as a substitute for yeast. So, if a recipe calls for 1 teaspoon of yeast, you can use 1/2 teaspoon each of baking soda and lemon juice. Remember that the dough will start rising immediately, and the bread won't need to prove for the usual amount of time.
You could find that your dough doesn't rise as much as usual and that the flavor and texture are different. However, these alternatives are definitely worth investigating if you run out of yeast, don't have time to wait for bread to rise, or are attempting to eliminate yeast from your diet for health reasons.
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Convert 800 km per hour to m/s.
Answer:
222.222m/s
Explanation:
Convert 800 km per hour to m/s
[tex] \frac{800km}{hr \\ } = \frac{800 \times 1000m}{60 \times 60sec} [/tex]
[tex] \frac{8 \\ 00000m}{3600s} [/tex]
[tex] = 222.22222 m {s}^{ - 1} [/tex]
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a. What is the momentum of an 8-kg bowling ball rolling at 2 m/s?
b. If the bowling ball rolls into a pillow and stops in 0.5 s, calculate the average force it exerts on the pillow.
c. What average force does the pillow exert on
the ball?
Answer:
a. 16 kg m/s
b. -32 N (Newton)
c. 32 N
Explanation:
a. The momentum of an object is the product of its mass and velocity. The formula for momentum is: momentum = mass x velocity
So, in the case of an 8-kg bowling ball rolling at 2 m/s, the momentum would be: momentum = 8 kg x 2 m/s
= 16 kg m/s
The unit of momentum is kg m/s (kilogram meter per second). The momentum of this bowling ball is 16 kg m/s. It is important to note that the direction of velocity is also important when calculating momentum, so it is important to know the direction of the bowling ball.
b. To calculate the average force that the bowling ball exerts on the pillow, we can use the equation: force = change in momentum / change in time
The change in momentum is equal to the final momentum minus the initial momentum. Since the bowling ball is rolling at 2 m/s and stops in 0.5s, we can assume that its final momentum is 0 (since it stops moving) and the initial momentum is 16 kg m/s.
change in momentum = final momentum - initial momentum
= 0 - 16 kg m/s
= -16 kg m/s
change in time = 0.5s
So,
force = -16 kg m/s / 0.5 s
= -32 N (Newton)
The negative sign indicates that the force is opposite to the direction of motion of the bowling ball. This is expected as the force exerted by the pillow is acting in the opposite direction of the ball's motion, thus slowing it down and bringing it to a stop.
It is important to note that the force exerted by the pillow on the bowling ball is equal and opposite to the force exerted by the bowling ball on the pillow, this is Newton's third law of motion.
c. The average force that the pillow exerts on the ball is equal and opposite to the average force that the ball exerts on the pillow, as stated by Newton's third law of motion. This is because when the ball collides with the pillow, the pillow exerts an equal and opposite force on the ball to stop its motion. Therefore, the average force that the pillow exerts on the ball is 32 N, in the opposite direction of the ball's motion.
A roller coaster car has a mass of 400 kg, and is traveling through a vertical loop of radius 45 m. What is the minimum speed to just maintain contact with the track at the inside of the top of the loop?
Where, a is the acceleration of the car at the top of the loop. Thus, the minimum speed required to safely make it through the loop is about 12.12m/s 12.12 m / s .
What 3 main forces act on a roller coaster?A roller coaster is a device that propels a train of vehicles over a twisting track using gravity and inertia. As the coaster rolls up, down, and around the track, the body experiences distinct sensations as a result of gravity, inertia, g-forces, and centripetal acceleration. According to this, an object at rest or in motion maintains its current condition until the application of imbalanced forces. Law of Inertia governs the majority of roller coasters. All roller coasters require a push or a pull to start since an item at rest remains at rest. Force times mass equals acceleration, according to Newton's Second Law (f x m = a). In essence, this means that the stronger the force.To learn more about roller coaster refer to:
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A pile of gunpowder can represent chemical ____ energy , while a flying pulley can represent mechanical ____ energy
A pile of gunpowder can represent chemical potential energy , while a flying pulley can represent mechanical kinetic energy.
Thermal energy is kinetic energy associated with the random motion of atoms and molecules. Temperature is a quantitative measure of “hot” or “cold.” When the atoms and molecules in an object are moving or vibrating quickly, they have a higher average kinetic energy (KE), and we say that the object is “hot.”
The specific heat capacity (c) of a substance, commonly called its “specific heat,” is the quantity of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius (or 1 kelvin)..
Like matter, energy comes in different types. One scheme classifies energy into two types: potential energy, the energy an object has because of its relative position, composition, or condition, and kinetic energy, the energy that an object possesses because of its motion.
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Particles q1, q2, and 9 are in a straight line.
Particles q1 = -5.00 • 10-6 C,92 = +2.50 • 10-6 C, and 93 = -2.50 • 10-6 C. Particles qi and q, are separated by 0.500 m. Particles q2 and q3 are separated by 0.250 m. What is the net force on q2?
Answer:
0.27475 N
Explanation:
To find the net force acting upon q2, we need to find the force exerted by q1 to q2 and the force exerted by q3 to q2, and to do that we should apply the formula
[tex]F = |\frac{kq_{1}q_{2} }{r^{2} }|[/tex]
where in k is coulomb's constant ([tex]8.99*10^9 \frac{Nm^{2}}{C^{2}}[/tex])
q1 and q2 are the charges
and r is the distance between the two charges.
Finding the force exerted to q2 by q1:
[tex]F = |\frac{(8.99*10^{9} * (-5*10^{-6}) * (2.5*10^{-6})}{(0.500)^{2}}|[/tex]
F = 0.4995 N
q1 would be attracted to q2, so it would go to the right, so it's a positive force
Finding the force exerted to q2 by q3:
[tex]F =|\frac{(8.99*10^{9})*(-2.5*10^{-6})*(2.5*10^{6})}{0.250^{2}}|[/tex]
F = 0.22475 N
q3 would be attracted to q2, so it would go to the left, so it's a negative force
F = -0.22475N
Add-up the forces: 0.4995 + (-0.22475) = 0.27475 N
VT 102.00 V, T = ?,
V₁?, 1₁=?, R₁= ?
V₂= 48.00 V, 12= ?, R₂= ?
V3= 40.00 V, 13?, R3- 19.00 Ohms
Solve for all the necessary parts of the circuit to answer the following question:
What is the current (I3) which is flowing through resistor three?
Your Answer:
RT
R₁ = ?
The current (I3) flowing through resistor three is not provided with the given information. To find the current, we would need the value of the total resistance (RT) which is not provided. Additionally, we would also need the value of R₁ and R₂ to calculate the total resistance.
What is resistor?A resistor is a passive electrical component that resists the flow of electrical current, reducing the current flowing through a circuit. They are often used to limit the current in a circuit, distribute power, or to adjust the voltage level in a circuit. They can be made of various materials such as carbon, metal film, and metal oxide, and are characterized by their resistance value measured in ohms (Ω).
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A fire hose sends 1 000 kg of water per minute against a
burning building. The water strikes the building at
20.0 m/s and does not bounce back. (a) What is the rate
of change of momentum of the water? (b) What force
does the building exert on the water? (c) What force does
the water exert on the building?
(a) The rate of change of momentum of the water is 333.33 kgm/s².
(b) The force exerted by the building against the water is -333.33 N.
(c) The force exerted by water against the building is 333.33 N.
What is the change in momentum of the water?The rate of change of momentum of the water is calculated by applying the following equation as shown below.
ΔP/t = mv / t = (m/t)v
where;
m/t is water rate = 1000 kg / minv is the velocity of the water = 20 m/sΔP/t = ( 1000 kg x 20 m/s ) / ( 1 min x 60 s )
ΔP/t = 333.33 kgm/s²
Based on Newton's third law of motion, action force and reaction force are equal and opposite. If the water exerts a certain force against the building, the building will exert equal and opposite force against the water.
The force exerted by water against the building, F = ma = (mv) / t
F = (mv) / t = 333.33 N
The force exerted by the building against the water;
F = - 333.33 N
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A 15. 0-kilogram mass is moving at 7. 50 meters per second on a horizontal, frictionless surface. What is the total work that must be done on the mass to increase its speed to 11. 5 meters per second?.
The total work required to increase the speed of the mass to 11.5 meters per second is 67.5 Joules.
What is speed?Speed is the rate of motion, velocity, or the rate of change of position in a given period of time. It is a measure of how quickly an object or person moves from one place to another. Speed is usually measured in units such as meters per second (m/s), kilometers per hour (km/h), or miles per hour (mph). Speed is an important factor in many sports, such as running, cycling, swimming, and racing. It also plays a role in everyday activities such as driving, walking, and getting around. Speed is a key factor in safety, as it can help people stay ahead of potential risks and hazards.
The total work that must be done on the mass is given by the equation W = F x d,
Where W is the work done,
F is the net force applied,
and d is the displacement.
In this case, the displacement is the change in velocity, or 4.5 meters per second.
The force needed to accelerate the mass to 11.5 meters per second is given by the equation F = m x a,
where m is the mass (15 kilograms) and a is the acceleration (4.5 meters per second2).
Therefore, the total work required to increase the speed of the mass to 11.5 meters per second is W = 15 x 4.5 = 67.5 Joules.
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A 5.6kg ball has rolled down a hill. At the bottom of the hill, the ball is moving 2.4 m/s.
(1) What is the kinetic energy of the ball?
(2) How high was the hill?
A 5.6kg ball has rolled down a hill. At the bottom of the hill, the ball is moving 2.4 m/s. The kinetic energy of the ball is 16.128 Joules.
What is kinetic energy?The energy that an object possess as a result of motion is termed as kinetic energy.KE is determined as the effort needed to move a mass-determined body from rest to the indicated velocity for it motion. The body holds onto the kinetic energy it acquired while its acceleration until its speed changes.
Solution:
Given:
Mass of the ball = 5.6kg
g=9.8m/s
velocity=2.4 m/s
Kinetic energy =(1/2)mv^2,
Kinetic energy=(1/2)5.6*2.4^2
Kinetic energy=16.128 Joules
For the height of the hill :mgh=1/2 mv^2
h=1/2 mv^2/mg
h= 16.128 /5.6*9.8
h=28.224m
Hence, the hill was 28.224m high.
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A child and sled with a combined mass of 46.0 kg slide down a frictionless hill that is 10.4 m high at an angle of 26 ◦ from horizontal. The acceleration of gravity is 9.81 m/s^2. If the sled starts from rest, what is its speed at the bottom of the hill? Answer in units of m/s.
The speed of the child is 14.28 m/s at the bottom of the hill.
What is law of conservation of energy?Energy cannot be created or destroyed, according to the law of conservation of energy. However, it is capable of change from one form to another. An isolated system's total energy is constant regardless of the types of energy present.
Initial potential energy = final kinetic energy
mass × acceleration of gravity × height = 1/2 × mass × speed²
Speed = √( 2 × 9.81 m/s² ×10.4 m)
Speed = 14.28 m/s
So, the speed of the child is 14.28 m/s at the bottom of the hill.
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calculate the movement of a 2000-kg truck travelling 19m/s
Answer:
The movement of a 2000-kg truck travelling at 19 m/s is 38,000 kgm/s.
two astronauts are pushing a satellite in space. astronaut 1 is pushing with 42 N positive on the x axis, astronaut 2 is pushing a force 15º above the positive y axis. what force is astronaut two pushing with
The force with which the second astronaut is pushing is 11.25 N in the problem given.
What is the force of the second astronaut?We have to note that force is a vector and because that force is a vector, we know that the direction of the force that has been applied is also very important.
As we know, it is clear that;
Force of an astronaut Fₓ = 42 N
Angle θ = 15º
Then we can write that;
F = 42 tan 15
= 11.25 N
Thus, the force that acts as the second astronaut is pushing is about 11.25 N.
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An illustration of a mass on a vertical spring with a transverse wave showing the position of the mass on the spring will make a transverse wave shape if bouncing up and down and moving horizontally. The shortest spring has the mass at the top of each crest and are labeled a and e respectively. The position where the mass in in the trough of the transverse wave would be labeled c and stretches the spring the farthest. The middle length springs has masses where the equilibrium of the material of the medium containing the transverse wave would be at the equilibrium of the material would be and are labeled b and d. At which point(s) is the net force the greatest? at which point(s) is the net force zero?.
The statement describing point D is "The net force is zero, so the acceleration is zero."
Simple Harmonic Motion is the alternating motion of an object through its equilibrium point. In simple harmonic motion, the object accelerates in a direction toward the equilibrium point. Acceleration that occurs in simple harmonic motion is caused by a rebound force.
The speed of the object at the equilibrium point is maximum. Examples of simple harmonic motion are the alternating motion of a pendulum and the alternating motion of a mass-spring system.
The acceleration of an object will be proportional to the amount of force (force results) acting on the object and inversely proportional to its mass.
At point D we are in a situation where the spring passes its equilibrium position, so x=0, therefore the net force is zero and the acceleration is zero.
The question is multiple choice:
A.The velocity has the maximum upward value because the acceleration upward is at a maximum.B.The net force is at a maximum in the downward direction, so the velocity begins to decrease.C.The velocity is zero because the net force is zero.D. The net force is zero, so the acceleration is zero.Learn more about Simple Harmonic Motion at https://brainly.com/question/20885248.
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A fifty-car train going 25 meters per second took 150 seconds to stop. What is the acceleration/deceleration?
Deceleration of 1/6 m/s2
Initial Velocity(u) = 25m/s
Final velocity(v) = 0 m/s
Time taken in reaching velocity 0 (t) = 150 s
so as we know from the equation of 2 dimension motions that
v = u + at ....................... (Formula Used)So
0 = 25 + a*150-25 = 150aa= -25/150 ---> -1/6 m/s2As we know that the acceleration is negative so we can conclude that it is a deceleration of 1/6 meter per second square. In the given Question, the information of Fifty - car train has no use in solving acceleration or deceleration.
Acceleration is always Positive as it Increases the speed of the body but Deceleration is negative as it for reducing the speed.
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