The wavelength of the sound wave in the room is approximately 3.118 meters, given the frequency and assumed speed of sound.
The speed of sound in a gas relies upon the properties of the gas, and specifically on its temperature, pressure, and sub-atomic weight. Since the issue doesn't give data on these properties, we will accept that the speed of sound in helium is equivalent to in air at room temperature and tension, which is roughly 343 meters each second.
To find the frequency of the sound wave in the room, we can utilize the recipe:
frequency = speed of sound/recurrence
Connecting the qualities we know, we get:
frequency = 343 m/s/110 Hz = 3.118 m
At long last, we can utilize the recipe frequency = speed of sound/recurrence to track down the frequency of the sound wave in the room. The frequency is the distance between two sequential focuses on the wave that are in stage with one another, i.e., that have a similar plentifulness and bearing of movement. For this situation, the frequency ends up being around 3.118 meters.
Subsequently, the frequency of the sound wave in the room is roughly 3.118 meters.
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the distance an object falls per second while only under the influence of gravity forms an arithmetic sequence with it falling 16 feet in the first second, 48 feet in the second, 80 feet in the third, etcetera. what is the total distance an object will fall in 10 seconds? show the work that leads to your answer.
Answer:
For an arithmetic progression:
a = 16 first term distance fallen in 1 sec
d = 32 and L = (n - 1) d additional distance d in following seconds
S1 = a = 16
S2 = a + 32 = 48
S3 = a + 64 = 80
S10 = 16 + 288 = 304 arithmetic sequence
S = 1/2 n (a + L) = 10 / 2 (16 + 304) total distance in 10 terms
S = 5 * 320 = 1600 ft
Physics formula:
S = V0 t + 1/2 g t^2 V0 = 0 at t = 0
S = 32 / 2 * 100 = 1600 ft
How would you choose a Gaussian surface for a particular charge distribution?
Choose a Gaussian surface based on the symmetry of the charge distribution, and enclose the entire charge distribution.
To choose a Gaussian surface for a particular charge distribution, one should consider the symmetry of the charge distribution.
The Gaussian surface should be chosen such that the electric field due to the charge distribution is constant over the surface and the surface encloses the entire charge distribution.
If the charge distribution exhibits spherical symmetry, a spherical Gaussian surface should be chosen. If the charge distribution is planar or cylindrical, a cylindrical or planar Gaussian surface, respectively, should be chosen.
For more complex charge distributions, it may be necessary to choose multiple Gaussian surfaces to fully enclose the charge distribution and simplify the calculations. In general, the choice of Gaussian surface should be made to take advantage of any symmetries in the charge distribution and to simplify the calculations of the electric field.
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would a positive test particle released from rest move toward a region of higher or lower electric potential (compared to the electric potential at the point where it is released)?
A positive test particle released from rest would move towards a region of lower electric potential (compared to the electric potential at the point where it is released).
It is because of the fact that positive test particle is attracted to regions of higher electric potential and repelled by regions of lower electric potential. Since the particle is released from rest, it has no kinetic energy to overcome the potential energy barrier and move against the direction of the electric field. Therefore, it will move in the direction of decreasing electric potential, which is towards the region of lower electric potential.
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which physics quantity is directly related to the tendency of an object to maintain its state of motion?
The quantity directly related to the tendency of an object to maintain its state of motion is called "inertia."
What is inertia?The propensity of an object to continue moving at a steady speed or to remain at rest is described by the principle of inertia. So, whether it is a moving body or something resting on a table, it is a measurement of an object's resistance to changing its condition. It takes more effort to change an object's condition from rest or constant velocity if it has higher inertia. Consequently, lighter objects are in states that are simpler to modify.
The fact that friction exists is one factor that may make the "constant velocity" part seem counterintuitive. The friction of the turf causes a ball to bounce and eventually roll to a stop when you kick it down a field. The ball would, however, continue moving at a steady speed indefinitely if the playing surface could be made frictionless, barring some external force. It goes without saying that this situation would also alter how baseball games are played, as well as every other aspect of life on Earth.
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what are two ways that machines make work easier?
Answer:
1. Machines can increase the speed of a task, allowing more work to be done in a shorter amount of time.
2. Machines can reduce the amount of physical effort required to complete a task, allowing for more efficient use of energy.
HELP ME ASAP. this is science unit 2 waves
Waves A and B have clearly different frequencies.
What is a frequency?
Using a stroboscope is an antiquated technique for determining the frequency of spinning or vibrating objects. The frequency of this strong, repeatedly flashing light (strobe light) can be changed using a precise timing circuit. The rotating item is the target of the strobe light, which has its frequency moved up and down. The object completes one cycle of oscillation and returns to its original position between flashes of light when the frequency of the strobe and the rotating or vibrating object are equal. As a result, when illuminated by the strobe, the object appears stationary. The calibrated readout on the stroboscope can then be used to determine the frequency. The method's drawback is that an object rotating at a rate that is an integer multiple of the strobing.To know more about frequencies, click the link given below:
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The greater the blank of a moving object, the blank it has
Answer:
The greater the MASS of a moving object, the GREATER KINETIC ENERGY it has.
Explanation:
Anytime matter is in motion it has kinetic energy. The faster an object moves, the more kinetic energy it has. The more mass an object has, the more kinetic energy it has.
As the earths crust and early atmosphere was formed, it is believed that _______ played a huge role in adding gases
As the earth crust and early atmosphere was formed, it is believed that _volcanic activity_ played a huge role in adding gases.
It is believed that volcanic activity played a huge role in adding gases to the early Earth's atmosphere as the crust and early atmosphere were formed Volcanoes release a variety of gases, including water vapor, carbon dioxide, sulfur dioxide, and nitrogen oxides, among others. These gases were released in large quantities during the early stages of Earth formation when the planet was still cooling and the crust was being formed. Volcanic activity was much more frequent and intense during this time, and as a result, large amounts of gases were released into the atmosphere. The release of these gases had a significant impact on the evolution of the early Earth's atmosphere. Carbon dioxide, for example, was a major component of the early atmosphere and played a key role in regulating the planet's temperature. As more carbon dioxide was released into the atmosphere, it trapped more heat from the sun, leading to a greenhouse effect that kept the Earth warm enough to support life. Water vapor, another important gas released by volcanoes, also contributed to the greenhouse effect and played a key role in the formation of oceans and the evolution of life on Earth. In addition to adding gases to the early Earth's atmosphere, volcanic activity also played a role in shaping the planet's crust and creating the conditions that allowed life to develop. The minerals and nutrients released by volcanoes provided the raw materials necessary for the formation of rocks, soils, and living organisms. The heat and pressure generated by volcanic activity also helped to create the conditions necessary for the formation of ore deposits, oil and gas reserves, and other valuable resources that are still being exploited by humans today.
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An airplane flies with a constant speed of
780 miles per hour. How long will it take to travel a distance of 2535 miles?
Answer:
3 hours 18 minutes
Explanation:
2535 miles ÷ 780miles/hr = 3.30 which is 3 hrs and 18min
. how was a lambda maximum (wavelength maximum) empirically determined? did your maximum coincide with the published maximum?
The wavelength known as lambda max provides information on the energy level of incoming radiations that a substance absorbs during its excitation.
Explain the method to find lambda maximum?Wavelength provides information on the radiation's intensity upon entry. It is crucial to spectroscopy because certain compounds exhibit peaks that are unique to their substituent r groups.
To begin a quantitative study, you must first determine the compound's lambda maximum in an appropriate solvent .You must create a calibration curve for the working range at lambda maximum using your standard compound at various concentrations in an effort to make the calibration curve relatively linear and regression constant (R2) values as close to 1.Always remember to include the dilution factor when calculating the concentration when preparing your compound for that solvent (if the amount of your component is out of range, dilute the sample).To achieve the absorbance value of 2, you must absorb the most.
A = 2-log%T in the equation.
If your substance has a greater absorbance, dilute it accordingly to attain the highest absorbance possible.
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If a cloud passes in front of sirius and reduces the flux that reaches you by a factor of 3, how many times brighter than vega will it be?
Vega will be about 6.5 times brighter than Sirius after the cloud passes in front of it.
The flux received from a star is,
Flux = Luminosity / (4π × distance²)
According to the HYG Database, Sirius has a distance of about 8.6 light years from us, while Vega has a distance of about 25 light years.
Original flux received from Sirius as F(S), then the flux received after the cloud passes in front of it will be 1/3 F(S). To calculate the relative brightness of Vega compared to Sirius,
(d(Sirius) / d(Vega))² = F(Vega) / F(Sirius)
where d(Sirius) and d(Vega) are the distances between Sirius and Vega, respectively.
F(Vega) = F(Sirius) × (d(Vega) / d(Sirius))²
= (1/3 F(S)) × (25 / 8.6)²
≈ 6.5 × F(Sirius)
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Dark moths began to outnumber white moths in cities after the Industrial Revolution. What is the most likely reason for this change?
answer choices
Light-colored moths mutated into dark colored moths.
Light-colored moths began to die due to overpopulation.
Light-colored moths were less favored for survival in the new environment.
Light-colored moths began to turn black because of factory pollution.
The most likely reason for the change in moth coloration is that light-colored moths were less favored for survival in the new environment.
What is Industrial Revolution?In the late 18th and early 19th centuries, there was a huge period of economic and social transformation known as the Industrial Revolution. It started in Britain and later expanded to the rest of Europe and North America. Rapid industrialization and technological advancement throughout the Industrial Revolution changed how things were produced and distributed, spurring the development of new industries and contemporary cities.
A number of events led to the start of the Industrial Revolution in Britain around the middle of the eighteenth century. The abundance of natural resources, such as coal and iron ore, which were used to power the machinery and industries that would propel the Industrial Revolution, was one of the main motivators. Britain also had a solid banking system and a stable administration, which promoted investment and development. Technological advancements like the steam engine and the spinning jenny made it possible to produce items more quickly and effectively, while the construction of new transportation infrastructure like railroads and canals made it simpler to carry finished goods and raw materials.
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What is the velocity of a skater who is 10 kg, and has a Kinetic energy of 10000 Joules?
The velocity of the skater is 35 kg, has a Kinetic energy of 10000 Joules.
What is velocity ?
The definition of velocity is the rate at which a body moves in a particular direction. Velocity is the rate at which a distance changes in relation to time. A vector quantity with both magnitude and direction is velocity.
What is kinetic energy ?
When an item undergoes work—the transfer of energy—by being subjected to a net force, it accelerates and acquires kinetic energy.
Therefore, velocity of the skater is 35 kg, has a Kinetic energy of 10000 Joules.
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A 2.0 Ω resistor is connected across a 6.0 V power supply. An ammeter with internal resistance of 1.0 Ω is used to measure the current in this circuit. What is the ammeter reading?
Ammeter with internal resistance of 1.0 Ω, gives reading of 2.0 A.
To determine the ammeter reading, calculate the total resistance of the circuit and then use Ohm's law to find the current.
The total resistance of the circuit is the sum of the resistance of the 2.0 Ω resistor and the internal resistance of the ammeter, which gives,
R_total = R_1 + R_ammeter = 2.0 Ω + 1.0 Ω = 3.0 Ω
Using Ohm's law, calculate the current in the circuit,
I = V / R_total
where V is the voltage of the power supply.
Substituting the given values,
I = 6.0 V / 3.0 Ω = 2.0 A
Therefore, the ammeter reading is 2.0 A.
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a boy on a ladder 2.0 m high has a mass of 63.5 kg. what is his potential energy, relative to the ground?
The potential energy relative to ground will be 1245.445 J. If mass= 63.5 kg, height =2m.
What is potential energy?Potential energy in physics is the energy that an item retains as a result of its position in relation to other objects, internal tensions, electric charge, or other elements.
The gravitational potential energy of an item, the elastic potential energy of a stretched spring, and the electric potential energy of an electric charge in an electric field are examples of common types of potential energy. The joule, denoted by the letter J, is the energy unit in the International System of Units (SI).
Although it has connections to the Greek philosopher Aristotle's concept of potentiality, the word potential energy was coined by the Scottish engineer and physicist William Rankine in the 19th century[3][4]. Forces acting on a body in a way that increases the total work have potential energy attached to them.
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A pump is used to spray water from a pool, determine
the maximum power of the pump. If 40 litres of water
water from a pool, determine
is pumped per minute and the spray reaches the maximun
height of 60m (assume that I litre of water has a mass
of 1 kg and that g = 10ms ²²).
The maximum power of the pump is 24,000 W.
How did we get the value?To determine the maximum power of the pump, we need to calculate the work done by the pump in lifting the water to a height of 60m.
First, we need to find the weight of the water that is pumped per minute:
40 litres of water * 1 kg/litre = 40 kg
Next, we can calculate the work done by the pump using the formula for work done by a force:
W = F * d
Where W is the work done, F is the force applied and d is the distance moved.
Since the weight of the water is the force acting on it, we can use that in the above formula:
W = 40 kg * 10 m/s^2 * 60 m = 24,000 J/minute
Finally, we can convert the work done per minute to power, using the formula:
P = W / t
Where P is the power and t is the time taken.
Since we know that 40 litres of water are pumped in 1 minute, we can use that as t:
P = 24,000 J/minute / 1 minute = 24,000 W
So, the maximum power of the pump is 24,000 W.
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Ultraviolet, visible, and infrared light are all examples of _______ radiation, which has the properties of both particles and __________.
Answer:
Ultraviolet, visible, and infrared light are all examples of electromagnetic radiation, which has the properties of both particles and waves.
Explanation:
the wing of an airplane has an average cross-sectional area of 13 m2 and experiences a lift force of 84,000 n. what is the average difference in the air pressure between the top and bottom of the wing?
The average difference in air pressure between the top and bottom of the wing is 8,400 Pa. Bernoulli's principle states that as fluid speed (such as air) increases, the pressure within the fluid decreases.
Assuming that the airflow over the wing is laminar, we can use Bernoulli's equation to find the difference in air pressure between the top and bottom of the wing:
P1 + 1/2 * rho * v1^2 = P2 + 1/2 * rho * v2^2
Where:
P1 is the pressure on the bottom of the wing
P2 is the pressure on the top of the wing
rho is the density of air (1.2 kg/m3 at sea level)
v1 is the velocity of airflow on the bottom of the wing
v2 is the velocity of airflow on the top of the wing
Since the wing is generating lift, we know that the upward force is equal to the airplane's weight, which is 84,000 N. We can also assume that the airflow on the bottom of the wing is roughly horizontal and that the airflow on the top is roughly vertical. Therefore, we can use the equation for the lift force:
L = 1/2 * rho * v2^2 * A
where:
L is the lift force (84,000 N)
A is the cross-sectional area of the wing (13 m2)
Solving for v2, we get:
v2 = sqrt(2 * L / (rho * A))
Plugging this into Bernoulli's principle equation and assuming that the velocity on the bottom of the wing is negligible (v1 ≈ 0), we get:
P2 - P1 = 1/2 * rho * v2^2
Substituting the values we have, we get:
P2 - P1 = 1/2 * 1.2 kg/m3 * (sqrt(2 * 84,000 N / (1.2 kg/m3 * 13 m2)))^2
Simplifying this equation, we get:
P2 - P1 = 8,400 Pa
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assume that every second, 20% of the kinetic energy of the water wheel is transmitted to the grain mill. calculate the power pw in w of the grain mill based on the energy it receives from the water wheel.
The power transferred to the grain mill is equal to the rate at which kinetic energy is being transmitted from the water wheel to the mill.
We can calculate this using the formula:
P = ΔK/Δt
where P is the power, ΔK is the change in kinetic energy, and Δt is the time interval over which the change occurs.
If 20% of the kinetic energy of the water wheel is transmitted to the grain mill every second, then the change in kinetic energy of the water wheel over one second is
ΔK = -0.2 * K
where K is the initial kinetic energy of the water wheel.
Substituting this into the power formula, we get:
P = (-0.2 * K) / 1s
Simplifying, we get:
P = -0.2 * K
The negative sign indicates that the power transferred to the grain mill is in the opposite direction to the velocity of the water wheel.
To determine the power in watts, we need to know the initial kinetic energy of the water wheel and convert it to watts. The formula for kinetic energy is:
K = 0.5 * m * v^2
where m is the mass of the water wheel and v is its velocity.
Without knowing the mass and velocity of the water wheel, we cannot determine the exact power in watts. However, we can provide a general expression for the power in terms of the mass and velocity of the water wheel:
P = -0.1 * m * v^2
where m is in kilograms and v is in meters per second. The power is negative because the energy is being transferred in the opposite direction to the velocity of the water wheel.
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2. A young kid is playing catch with himself by throwing a ball straight up. How fast does he throw it if
the ball comes back to his hands a second later? What was the maximum height of the ball? Ignore air
resistance.
When the ball returns to his hands 0.6 seconds later, Low speeds have very little air friction. Youngster playing catch with himself while wearing a large baseball cap.
What is an object's speed?
The speed by which an object moves a distance could be thought of just like its speed. A slow-moving object travels a relatively short distance in a given length of time, whereas a fast-moving object travels a big distance in a short amount of time.
What does speed look like mathematically?
Speed is mathematically represented as follows: Distance dimension formula: M0L1T0 Time has the following dimensions: M 0 H 0 T 1. By dividing the dimensional formulas for time and distance, we arrive to the following result:
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witch of nutents laws describes why and elephant has large amounts of inertia?
Answer: Newton's 1st Law
HOPE THIS HELPS _ MM
a skateboarder on a ramp is accelerated by a nonzero net force. for each of the following statements, state whether it is always true, never true, or sometimes true.
a) The skateboarder is moving in the direction of the net force.
b) The acceleration of the skateboarder is at right angles to the net force.
c) he acceleration of the skateboarder is in the same direction as the net force
d) The skateboarder is instantaneously at rest.
True, If the net force is in the same direction as the skateboarder's motion, then the skateboarder is moving in the direction of the net force.
a) The statement is sometimes true. If the net force is in the same direction as the skateboarder's motion, then the skateboarder is moving in the direction of the net force. However, if the net force is in the opposite direction of the skateboarder's motion, then the skateboarder is moving in the opposite direction of the net force.
b) The statement is never true. The direction of acceleration is in the same direction as the net force, as described by Newton's Second Law. If the net force is not perpendicular to the skateboarder's motion, then there will be a component of the acceleration in the direction of the net force.
c) The statement is always true. As described by Newton's Second Law, the acceleration of an object is directly proportional to the net force acting on the object, and is in the same direction as the net force.
d) The statement is never true. The skateboarder is moving, and if there is a nonzero net force acting on the skateboarder, then the skateboarder is accelerating.
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explain how energy is conserved in the roller coaster ride include descriptions to at least on energy transfer and least two energy’s transformation
During the ride, no energy is gained or lost. The automobiles' kinetic energy passes to the track, shaking it as energy flows from one location to another.
What is energy transformation?Energy transformation is when the energy is transformed into another energy. Kinetic energy is converted into potential energy, which is subsequently converted back into kinetic energy.
Friction between the cars and the track also converts it from kinetic to thermal energy. The overall amount of energy doesn't change, though.
Therefore, no energy is acquired or lost during the ride. The track is shaken as a result of the kinetic energy of the cars moving from one place to another.
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why do we need to follow the suggested activities given in the philippines physical activity guided (PPAP)
The PPAG recommends a variety of physical activities, such as aerobic exercises, muscle-strengthening exercises, and flexibility exercises. It also includes recommendations for the frequency, intensity, and duration of physical activity for various age groups and skill levels.
Individuals can ensure that they are getting the right amount and type of physical activity for their health and well-being by following these guidelines.
The Philippines Physical Activity Guidelines (PPAG) provide evidence-based physical activity recommendations to improve health and well-being. Following the PPAG's suggested activities can provide numerous benefits, including:
Improving overall health: Physical activity is linked to a lower risk of chronic diseases like heart disease, stroke, diabetes, and certain types of cancer. It can also aid in the management of chronic conditions like high blood pressure, high cholesterol, and obesity.
Physical activity has been shown to reduce symptoms of depression and anxiety, as well as improve overall mood and emotional well-being.
Improving physical function: Regular physical activity can help improve strength, flexibility, balance, and coordination, lowering the risk of falls and improving overall physical function.
Physical activity is an important component of a healthy weight management plan because it helps burn calories and maintain muscle mass.
Increasing social connections: Physical activities can provide opportunities to connect with others and build social support networks.
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Identify the areas of physics involved in each of the following tests of lightweight metal alloy proposed for use in sailboat hulls.
a. Testing the effects of collision on the alloy
b. Testing the effects of extreme heat and cold on the alloy
c. Testing whether the alloy can affect a magnetic compass needle
The areas of physics involved in each of the following tests of lightweight metal alloy proposed for use in sailboat hulls are as follows:
a. Testing the effects of a collision on the alloy - The area of physics involved in this test is mechanics, specifically the study of forces and motion.
b. Testing the effects of extreme heat and cold on the alloy - The area of physics involved in this test is thermodynamics, specifically the study of heat and temperature and their relation to energy and work.
c. Testing whether the alloy can affect a magnetic compass needle - The area of physics involved in this test is electromagnetism, specifically the study of the relationship between electricity and magnetism.
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2. A weight lifter lifts a set of weights a vertical distance of 2.00 m. If a con-
stant net force of 350 N is exerted on the weights, what is the net work done
on the weights?
The work done by the weightlifter which covers a distance of 2 m and a constant net force of 350 N is 700 Joules.
What is Work done?The work done by a force is the product of the displacement of object and the component of applied force of the object in the direction of displacement of the object. When we push a block with some force 'f', then the body moves with some amount of acceleration, and work is done.
The force exerted to lift the weight, F is 350 N
The work done by the body is defined as the product of the force applied by the body to the displacement it caused.
W = F x s
W = 350 N x 2 m
W = 700 J
The work done by the weightlifter, W = 700 J
The time taken by the weightlifter to lift the weight, t = 2 s
The power is given by the equation,
P = W / t
P = 700 J / 2 s
P = 350 watts
Hence, the power of the weightlifter, P = 350 watts.
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a particle undergoes simple harmonic motion of amplitude and frequency . what is the average speed of the particle during one oscillation?
The average speed of the particle during one oscillation is 2 times the product of the amplitude and frequency of the simple harmonic motion.
The average speed of a particle undergoing simple harmonic motion in one oscillation can be found by using the formula for the average speed, which is the total distance traveled divided by the total time taken. In one complete oscillation, the particle starts from the equilibrium position, moves to the maximum displacement in one direction, returns to the equilibrium position, and then moves to the maximum displacement in the other direction before returning to the equilibrium position again. This completes one oscillation.
The total distance traveled by the particle in one complete oscillation is twice the amplitude of the motion, which is given in the problem. Therefore, the total distance traveled is 2A, where A is the amplitude of the simple harmonic motion.
The total time taken for one complete oscillation is the period of the motion, which is the time taken for the particle to complete one oscillation. The period is given by the formula T = 1/f, where f is the frequency of the motion.
Therefore, the average speed of the particle during one oscillation is:
average speed = (total distance traveled) / (total time taken)
= (2A) / (T)
= (2A) / (1/f)
= 2Af
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Why do people wear special ear protection for
a rocket launch?
Because the noises of a rocket launch are so low in pitch, individuals wear specific ear protection to enable them hear the sounds of the rocket better.
What decibel level is dangerous?
Your hearing may begin to be harmed if exposed to noise over 70 dB for an extended period of time. Your ears can suffer instant damage from loud noise above 120 dB.
You can even completely lose your hearing if a firecracker goes off next to your ear. Wear earplugs and stay a safe distance away from where the fireworks are being fired off to protect your ears. Rockets make a rumbling sound before takeoff, a roaring sound during flight, and then a whooshing sound that occurs long later.
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A negatively charged rod is brought near an object. The protons in the object move towards the rod, while the electrons move to the opposite side of the object. The separation of the charges are called_____.
The creation of space between particles with opposing charges is known as charge separation, sometimes known as static electricity.
Why is static electricity a charge?When the positive and negative charges are out of balance, static electricity is produced. While electrons like to hop all over the place, protons and neutrons don't move around very much. A negative charge is present when an object (or person) possesses more electrons. A common electric phenomena called static electricity occurs when charged particles are transmitted from one body to another. For instance, when two insulators are rubbed together and the air around them is dry, the resulting charges are equal and opposite to one another. The term "static electricity" describes an imbalance of electric charges in a body, more precisely, the imbalance of negative and positive charges.
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1) return the observer back to their original position, 0 degrees n and 96.7 degrees w. where in the sky would the observer look to see the constellation orion? group of answer choices directly overhead (at the zenith) on the meridian, but north of the zenith on the meridian, but south of the zenith
If the observer was to look up at midnight in late December from 0 degrees N and 96.7 degrees W, they would see Orion slightly to the south of the zenith on meridian.
What is an Orion?Orion is a constellation that can be seen from northern and southern hemispheres, and it passes near celestial equator. At around midnight in late December, Orion is visible in southern sky, slightly to the south of zenith.
To find the position of Orion in the sky, we need to know the observer's location and the current time. At the equator (0 degrees latitude), the celestial equator (an imaginary line in the sky directly above the Earth's equator) passes directly overhead. Therefore, if the observer is looking straight up (at the zenith), they would be looking at the celestial equator.
If the observer were to look up at a different time of year, or from a different location, the position of Orion in the sky would be different.
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