The statement is False.
A latent function is the unintended and unrecognized consequence of some element of society. It is the hidden or unconscious benefit or outcome that results from an action or element of society, rather than the intended or recognized consequence.
An example of a latent function of going to school is that it allows children to socialize with their peers and learn how to interact with others. While this is not the intended or recognized consequence of going to school, it is a benefit that results from it.
On the other hand, Manifest functions are the intended and recognized consequence of some element of society.
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Calculate the force F on the -1.0nC charge in the middle of the square due to the other four charges. Express your answer as magnitude and direction, and in component form.
Charges here on upper right and lower left generate a force that is left-pointing and points toward the lower left.
What is a force?The definition of the word "force" is obvious. At this point, it is perfectly acceptable to refer to a force as a push or a pull. An object doesn't "have a force in it" or "contain a force." The idea of a force encompasses both living and semi things.
How can you calculate net force?The linear sum of all forces acting on an object is known as the net force. As a result of the fact that such a force is a vector and that two forces with identical magnitudes and opposing directions cancel each other out, the net torque is the total of all forces, or put another way.
F1 =F2
=2* k* q1* q2/r 2
=2* 9.0×10∧ 9* 1.0×10∧-9^* 2.0×10^∧-9/(7.07×10^∧-3
=7.2×10∧-4N
horizontal components,
F =2^* F1* cos(45)
=2* 7.2×10^∧-5^* cos(45)
=1.02×10^∧-3 N
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If a negatively charged rod is held near an uncharged metal ball, the metal ball 1. becomes positively charged. 2. becomes negatively charged. 3. Unable to determine. 4. is unaffected. 5. becomes polar
Becomes positively charged. When a negatively charged rod is brought near an uncharged metal ball, electrons from the rod will be attracted to the ball, giving it a positive charge.
What is uncharged?An uncharged ball is an object that does not contain any electrical charge. This type of ball is often made of rubber, plastic, or metal, and is used in a variety of applications such as games and laboratory experiments. An uncharged ball is also known as a neutral object, which means that it has no positive or negative electrical charge. This type of ball can be used in experiments to analyze how electric fields interact with charged particles and how electric fields can affect the motion of an object. For example, when two charged balls are placed near each other, they will repel each other due to the electric fields they create. However, when two uncharged balls are placed near each other, they will not be affected by the electric fields.
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the kinetic energy of an object is 8 times bigger than the mass. is it possible to find the speed of the object?
Answer:
Explanation: the kinetic energy k=1/2mv^2
K=8m
using formula
8=1/2mv^^2
v^2=16
v=4m/s
what is the maximum transverse velocity at an antinode? express your answer with the appropriate units.
Answer:
An antinode should be motionless by definition.
Vav = 0 m / n sec = 0 m/s
what innovation helped galileo observe the detail preserved in these sketches? (1 point) math that measured the size of planets mathematical theories by newton philosophical principles by descartes improved telescope technology
The telescope. The telescope is one of humankind's most important inventions. The earliest known telescope arose in 1608 in the Netherlands. Galileo invented it to prove that they were more than one planets.
Who was Galileo Galilei?Galileo Galilei was an Italian astronomer, physicist and engineer. He is popularly known as the "father of observational astronomy", "father of modern physics", "father of the scientific method", and the "father of modern science". He used to work by using the telescope for scientific observations of celestial objects.
Which telescope are capable of seeing saturn rings?The rings of Saturn are visible in even the smallest telescope at 25x. A good 3-inch scope at 50x can show them as a separate structure detached on all sides from the ball of the planet.
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A 1500-W heater is designed to be plugged into a 120-V outlet.
What current will flow through the heating coil when the heater is plugged in?
What is R, the resistance of the heater?
How long does it take to raise the temperature of the air in a good-sized living room(3.00m
The current flowing through the heating coil when the heater is plugged in will be 0.08A.The resistance of the heater is 12.5Ω.To raise the temperature of the air in a good-sized living room the time needed is ≈ 38 min.
What is Ohm's Law?Ohm's Law is a fundamental principle in physics and electrical engineering that describes the relationship between electric current, voltage, and resistance. It states that the current flowing through a conductor is directly proportional to the voltage applied across it, and inversely proportional to the resistance of the conductor. Mathematically, it can be expressed as:
I = V / R
A) To calculate the current, we use Ohm's Law: I = P/V, where I is the current, P is the power, and V is the voltage. In this case, P = 1500 W and V = 120 V, so I = 1500 W / 120 V = 12.5 A.
B) To calculate the resistance, we use Ohm's Law again: R = V/I, where R is the resistance, V is the voltage, and I is the current. Using the values we found in part A, R = 120 V / 12.5 A = 9.6 Ω.
C) To calculate the time, it takes to raise the temperature of the air in the room, we need to know the heat capacity of the air in the room. We can calculate this using the specific heat of air and the density of air, and multiplying by the volume of the room: Heat Capacity = (1006 J/(kg⋅∘C)) * (1.20 kg/m3) * (3.00 m * 5.00 m * 8.00 m) = 3,432,800 J/°C.
To raise the temperature of the air by 10.0°C, we need to transfer 3,432,800 J, so we can calculate the time it takes using the power of the heater and the heat capacity. Using the power of the heater and the heat capacity, we can calculate the time it takes as t = Heat Capacity / power = 3,432,800 J / 1500 W = 2,288 sec ≈ 38 min.
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a 0.530 kg mass suspended from a spring oscillates with a period of 1.50 s. how much mass must be added to the object to change the period to 1.95 s?
By applying the time period formula, it is possible to calculate that 0.389 kg of mass must be added to the item in order to shift the era to 2.00 s.
What in science is mass?In physics, mass is a quantitative measurement of inertia, a basic characteristic of all matter. It essentially refers to a body of matter's resistance to changing its speed or location in response to the force exerted on it. The change caused by a force applied is smaller the more mass a body has.
What are volume and mass?A: A three-dimensional object's volume is the area it takes up, and it is expressed in cubic units. Cm3 and in3 are two such examples of cubic units. On the other, mass The hand is a unit of measurement for volume in an object. The weight of an object is a common way to determine mass.
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An insulating sphere of radius a, centered at the origin, has a uniform volume charge density ?.
Find the electric field E? (r? ) inside the sphere (for r< a) in terms of the position vector r? .
Express your answer in terms of r? , ? (Greek letter rho), and ?0
The electric field E? (r?) inside the sphere for r< a is given by the following expression:
What is electric field?Electric field is an area in which electric forces act. It is a physical quantity that is used to describe the force that is exerted on a charged particle by an electric field. Electric fields are created when electric charges are placed in a space. The electric field is a vector field, meaning it has both a magnitude and a direction. It is measured in volts per meter (V/m). Electric fields can be used to describe the behavior of electric charges, and to calculate the force between them.
E? (r?) = ?0 ? ? r? / (4?0 r3)
Where ?0 (Greek letter epsilon naught) is the permittivity of free space, ? (Greek letter rho) is the volume charge density, and r? is the position vector. This expression is derived from the Gauss' Law which states that the electric flux or the electric field emitted from a closed surface is equal to the charge contained in the closed surface.
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The electric field E (r ) inside the sphere (for r< a) in terms of the position vector r is ( ρ / 3ε_0 ) * r
What do you mean by electric field?An electric field is a force field created by a charged object that exerts a force on other charged objects within the field. The strength of the electric field is determined by the magnitude of the charge creating the field and the distance from the charge. Electric fields can be represented by lines of force, with the direction of the field indicated by the direction of the lines. Electric fields can be used to explain a wide range of physical phenomena, including the behavior of electric charges and the behavior of electric circuits.
The electric field inside an insulator sphere with a uniform volume charge density can be found using Gauss' law. Gauss' law states that the electric flux through a closed surface is proportional to the charge enclosed within the surface.
For an insulating sphere, the electric field is zero everywhere outside the sphere. Therefore, the electric field inside the sphere is given by:
E = (Q / (4πε₀ a³)) ₓ r
where Q is the total charge enclosed within the sphere, a is the radius of the sphere, and r is the position vector of a point inside the sphere.
Given the volume charge density (Greek letter rho), we can calculate the total charge within the sphere as:
Q = (4/3)π ₓ a³ ₓ ρ
Substituting this value of Q into the expression for the electric field, we get:
E = ( (4/3)π ₓ a^3 ₓ ρ / (4πε₀ a³)) ₓ r = ( ρ / 3ε₀ ) ₓ r
So the electric field inside the sphere (for r < a) in terms of the position vector r, the volume charge density ρ, and the electric constant ε₀ is:
E = ( ρ / 3ε₀ ) * r
Note that in this case, the electric field is radially outward, as the charge density is positive.
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the diameter of a hose is 10.0 times that of its nozzle. if the nozzle is 1.00 m higher than the pump which pushes the water, and the water flows through the hose at 0.400 m/s, what is the gauge pressure of the water at the pump?
The gauge pressure of the water at the pump 10.96 Pa.
What is gauge pressure?Gauge pressure is a type of pressure measurement that is relative to atmospheric pressure. It is calculated by taking the absolute pressure of a system and subtracting the atmospheric pressure from it. Gauge pressure is often used to measure the pressure of a closed system, like a tire or an air conditioning unit, because it is easier to measure than absolute pressure.
The pressure at the pump is equal to the difference in height between the pump and the nozzle multiplied by the acceleration due to gravity (9.8 m/s2) plus the kinetic energy of the water in the hose. The kinetic energy is equal to the velocity of the water squared, divided by two.
So the pressure at the pump is:
Pump Pressure = (1.00 m * 9.8 m/s2) + (0.400 m/s)2 / 2
Pump Pressure = 9.8 + 0.160
Pump Pressure = 10.96 Pa
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What is the proper way to name the range of cells located in column a row 3 through column c row 7? 3a:7c 7c:3a a3:c7 c7:a3
"The proper way to name the range of cells located in column A row 3 through column C row 7 is A3:C7."
Each worksheet is composed of countless cells, which are rectangular shapes. A cell is the place where a row and a column meet, or the intersection of a row and a column.
A, B, and C are used to identify columns, while digits are used to identify rows (1, 2, 3). Based on its column and row, each cell has a unique name or cell address. The cell address in the example below is C5, because the chosen cell intersects column C and row 5.
Additionally, it is possible to select many cells at once. A cell range is a collection of cells. You will refer to a cell range using the cell addresses of the first and last cells in the range, separated by a colon, rather than a single cell address. Cells A1, A2, A3, A4, and A5 would be included in the range represented by the letters A1:A5.
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3. explain why very small cloud droplets of pure water evaporate even when the relative humidity is 100 percent.
Except in cases where the air is supersaturated (the relative humidity is greater than 100%), smaller cloud droplets will evaporate fast.
Air that is saturated with regard to a flat surface is unsaturated with respect to a curved cloud droplet due to the curvature effect.
Even if embryonic droplets of pure water as large as 0.01 micrometers in radius formed by the chance collisions of water molecules, they would be well below the critical radius necessary for survival in air that is just a few percent supersaturated because the supersaturations that develop in natural clouds due to the adiabatic ascent of air rarely exceed a few percent.
According to the theory's premise, salt particles and other hygroscopic aerosols that become deliquescent (i.e., absorb water vapor and dissolve into aqueous solution droplets) under subsaturation are what create cloud droplets. For instance, sodium chloride particles deliquescence point is 75% RH.
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when an egg is boiled in a pot of water on the stove, there is more than one kind of heat transfer. heat is transferred from the stove to the pot directly since they are physically touching. heat is also transferred from the pot to the egg, carried through the water. what two kinds of heat transfer are represented? when an egg is boiled in a pot of water on the stove, there is more than one kind of heat transfer. heat is transferred from the stove to the pot directly since they are physically touching. heat is also transferred from the pot to the egg, carried through the water. what two kinds of heat transfer are represented? stove to pot
The three ways that heat can be transferred from one media to another are radiation, conduct, and heat transport.
Give a definition of radiation.Radiation is the name for energy that spreads out from a source and travels through the environment at the speed of light. This energy has wave-like properties and is complemented by a magnetic field and an electrostatic potential. Electromagnetic waves can sometimes be referred to as "radiation."
How would we receive radiation?People are exposed to radiation by cosmic rays, radioactive materials in the environment, water, food, and air, and even within their own bodies. Human-made radiation sources are commonly used in business, science, and medicine. The two types of radiation are radiation and non-ionizing radiation.
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two uniformly charged infinite non conducting planes are parallel to a yz plane and positioned at x 50 cm and x 50 cm the charge densities on the planes are 50 nc m2 and 25 nc m2 respectively what is the magnitude of the potential difference between the origin and the point on the x axis at x 80 cm hint use gauss law
To calculate the potential difference between the origin and the point on the x-axis at x=80 cm, we can use Gauss's Law. the potential difference between the origin and the point x=80 cm is 1.74 x 10^-4 V or 1.74 microvolts
What does the term "potential difference" mean?the difference in potential between two points that symbolizes the labor or energy expended during the transfer of a unit amount of electricity from one spot to another.
The flux through the top face is:
Flux_top = (50 nC/m^2) * (pi*(80 cm)^2) / (8.854 x 10^-12 C^2/Nm^2) = 1.45 x 10^-5 N
The flux through the bottom face is:
Flux_bottom = (25 nC/m^2) * (pi*(80 cm)^2) / (8.854 x 10^-12 C^2/Nm^2) = 7.24 x 10^-6 N
Since the electric field is perpendicular to the planes, the net flux is:
Flux = Flux_top - Flux_bottom = 1.45 x 10^-5 N - 7.24 x 10^-6 N = 6.76 x 10^-6 N
The electric field is then:
E = Flux / (pi*(80 cm)^2) = 6.76 x 10^-6 N / (pi*(80 cm)^2) = 2.17 x 10^-6 N/m^2
To find the potential difference, we need to integrate the electric field along the x-axis from x=0 to x=80 cm.
V = Integral(E dx) = Integral(2.17 x 10^-6 N/m^2 dx) = 2.17 x 10^-6 N/m^2 * 80 cm = 1.74 x 10^-4 V
V = 1.74 x 10^-4 V or 1.74 microvolts
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you place two charges a distance r apart. then you double each charge and double the distance between the charges. how does the force between the two charges change? the new force is twice as large. the new force is the same. the new force is half as large. the new force is four times smaller. the new force is four times larger.
This force is directly equal to the product of a charges and inversely linked to a square of the distance between the charges.
What happens if the distance and both charges are doubled?It would be possible to treble the force by doubling both charges.The force would be four times lower if the distance were doubled.These two changes together would have no effect on the force; it would remain at 0.080 N.
If the difference between adjacent things is doubled and tripled, what happens to a force between the two objects?Force between two objects decreases by one-fourth when their distance is doubled.When an object's distance is tripled, the pressure between them is reduced by one-ninth.
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A computer disk drive is turned on starting from rest and has constant angular acceleration.
a) If it took 0.810 s for the drive to make its second complete revolution, how long did it took to make the first revolution?
b) What is its angular acceleration in rad/s^2?
a) The time taken to make the first revolution is calculated to be 0.63 s.
b) The angular acceleration in rad/s² is calculated to be 31 rad/s².
Given that,
Time t = 0.81 s
Angular displacement in the time t is Δθ = 4 π
Initial angular speed ω₀ = 0 rad/s
The disk moves with a circular motion, so to find the time it takes to make a complete revolution we must find the angular acceleration α,
Δθ = ω₀ t + α t²/2
As ω₀ = 0 rad/s, Δθ = α t²/2
On re-arranging, we have, α = 2 Δθ/t² = (2 × 4π)/0.81² = 31 rad/s²
a) The time it takes to make its first revolution is,
Δθ = α t²/2
2 π = α t²/2
t² = 4 π/α
t = √(4 π/α) = 0.63 s
b) The angular acceleration in rad/s² is 31 rad/s².
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Model rocket engines are rated by their thrust force and by the impulse they provide. You can use this information to determine the time interval at which the engines fire. Two rocket engines provide the same impulse. The first engine provides 6 N of thrust for 2 s; the second provides 4 N of thrust.
The time interval at which the engines fire is 3 s. Two rocket engines provide the same impulse.
What is the force's impulse?If the force is constant, the impulse of force is created by multiplying the resultant force, F, by the length of this force, t. The impulse of force is what changes the state of motion, which then changes the state of momentum.
What does the expression "impulse of force and momentum" mean?The force and momentum impulses can both be used to depict this relationship. If the force is constant, the resulting force, F, and the length of this force, t, are multiplied to create the impulse of force. The force impulse is what causes changes in momentum as well as changes in motion.
The relation between the impulse, the applied force, and the time interval is,
F = J/Δt
J = F.Δt
The impulse provided by the first engine,
J = (6 N).(2 s)
J = 12 N.s
The time required for the second engine firing to provide the same impulse,
12 N.s = 4 N* Δt
Δt = [tex]\frac{12N.s}{4N}[/tex]
Δt = 3 s
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At which sporting event would you most likely see balls traveling at over 180 mph?
The sporting event at which you would most likely see balls traveling at over 180 mph would be a Formula One race.
What is Formula One?Formula One, also known as F1, is the highest class of single-seater auto racing sanctioned by the Fédération Internationale de l'Automobile (FIA). Races take place on purpose-built circuits, and they feature open-wheel, open-cockpit cars. These cars are purpose-built, with the sole purpose of racing in the Formula One world championship. The cars are designed with aerodynamics in mind, featuring wings, diffusers and aero devices to help them achieve maximum downforce and speed. Formula One drivers need to be in peak physical condition, as the cars are very demanding to drive. F1 is considered the pinnacle of motorsport, with some of the world's best drivers competing in it.
Formula One racing is an international auto racing sport where cars race around a track at incredibly high speeds. These cars can reach speeds of around 200 mph, and the balls that are used to help the cars navigate the track (such as the tires) can reach speeds of over 180 mph.
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true/false. a three-dimensional isotropic harmonic oscillator with hamiltonian is an instance of quantum mechnaical systems where a particle mass m is exposed to a spherically-symmetric potential
True that a three-dimensional isotropic harmonic oscillator with Hamiltonian is an instance of quantum mechanical systems where a particle is exposed to a spherically-symmetric potential.
What is an isotropic harmonic oscillator, exactly?The defining matrix referring of U has a component called the N-dimensional isotropic harmonic oscillator (N). The energy is confined, similar to the one-dimensional situation. Using the analogy of N separate one-dimensional oscillators, we would anticipate that the ground state energy is N times the one-dimensional ground energy.
What does a harmonic oscillator's Hamiltonian look like?The Hamiltonian is given the form H = p2 2m + m2 x2 2, resulting in the Hamiltonian operator, H = p2 2m + m2 x2 2. thus gives the Hamiltonian operator, H = p2 2m + m2 x2 2, which is one of the most real challenges in quantum mechanics.
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Rachel has good distant vision but has a touch of presbyopia. Her near point is 0.80 m. Part A When she wears +2.0 D reading glasses, what is her near point? Express your answer with the appropriate units. Snear = ...?Part B What is her far point when she wears glasses? Express your answer with the appropriate units. Sfar = ...?
When she wears +2.0 D reading glasses, her near point is −0.57m and −0.5m is her far point when she wears glasses.
What is near point?Within the eye's accommodation range, the near point in visual perception is the distance at which an object can be placed while still forming a focused image on the retina. The far point serves as the eye's other accommodation range limit.
A normal eye is thought to have a near point at 11 cm (4.3 in) or so for a person who is thirty years old.
Age has a significant impact on the near point. An individual with presbyopia or hyperopia would have a farther near point than usual.
Diopters, which represent the inverse of distance, are sometimes used to express near point (see Presbyopia Mechanism).
Part A
[tex]$ P = \frac{1}{f} = +2 D[/tex]
v given = 0.80 m
Using
1/v - 1/u = 1/f
1/0.80 - 1/u = 2D
1/0.80 - 1/u = 1/2
u = −0.57
Part B
V = ∞
f = 1/2 = 0.5
1/∞ - 1/u = 1/0.5
u = −0.5
Thus, When she wears +2.0 D reading glasses, her near point is −0.57m and −0.5m is her far point when she wears glasses.
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Gabriella is designing a flashlight that uses a parabolic reflecting mirror and a light source. The shape of the mirror can be modeled by where x and y are measured in inches. Where should she place the bulb to ensure a perfect beam of light
The bulb should be placed on parabolic focus to ensure a perfect beam of light
The point on a parabola known as the parabolic focus is where all parallel light rays are reflected at a single point or when all rays travelling through the focus are reflected parallel to the axis of symmetry. The focus of a parabolic reflector is the location at which the reflected light congregates.
The parabola point is equally spaced from the directrix and the vertex, to use mathematical terminology. An equation for a parabola is presented in standard form. Therefore, a parabola lying sideways and facing right with an extremum of will serve as the visual representation in the given example in Cartesian (2; -3). Given that 13 is the focal parameter, the focus will be at (2+0.5p; -3) or (8,5; -3).
Complete Question:
Gabriella is designing a flashlight that uses a parabolic reflecting mirror and a light source. The shape of the mirror can be modeled by (y+3)^2=26(x-2) where x and y are measured in inches. Where should she place the bulb to ensure a perfect beam of light?
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1 pts a solid sphere and a hollow sphere have the same mass and radii. the two spheres are spun with matching angular velocities. which statement is true? i. the hollow has the greater angular momentum ii. the solid sphere has the greater angular momentum. iii. the angular momentum is the same for both spheres. iv. the moment of inertia is the same for both spheres. group of answer choices iv i ii iii
Answer:
Only (i) is true.
I (solid sphere) = 2/5 M R^2
I (spherical shell) = 2/3 M R^2 (hollow)
The hollow sphere has the greater momentum
the mass of the block is 2.2 kg. if the muzzle velocity of the bullet is 530 m/s and its mass is 6.5 g, find the maximum height h reached by the bullet/block system as the pendulum swings.
The maximum height reached by the bullet/block system is given by: h = (v^2 * mb)/(2 * g * (mb + mb). where v is the muzzle velocity, mb is the mass of the bullet, and g is the acceleration due to gravity (9.81 m/s^2).
What is muzzle velocity ?
Muzzle velocity is the speed of a projectile at the moment it leaves the muzzle of a gun. It is the combination of the force of the explosive propellant and the mass of the projectile, and is usually expressed in metres per second (m/s).
The higher the muzzle velocity, the greater the range and accuracy of the projectile.
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In a science museum, a 120 kg brass pendulum bob swings at the end of a 11.4 m -long wire. The pendulum is started at exactly 8:00 a.m. every morning by pulling it 1.7 m to the side and releasing it. Because of its compact shape and smooth surface, the pendulum's damping constant is only 0.010kg/s. 1) At exactly 12:00 noon, how many oscillations will the pendulum have completed?
2) What is its amplitude at noon?
1) At exactly 12:00 noon, the oscillations will the pendulum have completed 2165 oscillations.
2) Its amplitude at noon is 88.3m.
What is an oscillation?The process of any quantity or measure repeatedly varying around its equilibrium value in time is referred to as oscillation. Another way to describe oscillation is as a periodic change in a substance's value between two values or around its midpoint.
1)The pendulum's period is the length of time it takes for one full revolution to occur.
Keep in mind that a pendulum's period is denoted by the following:
T = 2pi√(L/g)
Here, we know that L = 11.4m
The pendulum's period will then be:
T = 2×3.14×√(11.4m/9.8m/s²) = 6.28×√1.14
T = 6.28×1.06 = 6.65s
So one complete oscillation takes 6.65seconds.
We are aware that the pendulum swings at 8:00 am.
Four hours after the pendulum begins to swing, or 12:00 noon, is the time we're interested in.
So, we're interested in finding out how many full oscillations occur in a period of 4 hours.
It takes 6.65 seconds for each oscillation.
The product of the total time (4 hours) and the period will yield the total number of oscillations.
First, since 1 hour equals 3600 seconds, we must write both of these in the same units.
then,
4 hours = 4(3600 seconds) = 14,400 s
There were a total of: oscillations during that period,
N = 14,400s/6.65s = 2165.41
N = 2165
The pendulum does 2165 oscillations between 8:00 am and 12:00 noon.
2) Amplitude x(t) = A exp (-bt/2m)
x(t) = 1.7 exp (0.010(4(3600/1)))/2(110)
x(t) = 0883(10⁻²)/1
x(t) = 88.3m.
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if the child could swing around in a vertical circle, what minimum velocity, in [m/s], would be required at the top of its motion to maintain a uniform circle?
If the radius of the circle is 3 meters, the minimum velocity required to maintain a uniform vertical circle would be approximately 5.4 m/s.
To maintain a uniform vertical circle, the child would need to have a minimum velocity equal to the square root of the gravitational acceleration multiplied by the radius of the circle. The equation is:
v = √(g × r)
where v is the minimum velocity, g is the gravitational acceleration on earth's surface (approximately 9.8 m/s²), and r is the radius of the circle (3 meters).
v = √(9.8 × 3)
v = √29.4
v = 5.4 m/s
Therefore the minimum velocity required to maintain a uniform vertical circle is 5.4 m/s
It is important to note that this is the minimum velocity required to maintain a uniform circle and additional velocity would be required to counteract air resistance and other external forces.
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Your question seems incomplete, but I suppose the complete question was:
"If the child could swing around in a vertical circle, what minimum velocity, in [m/s], would be required at the top of its motion to maintain a uniform circle if the radius of the circle is 3 meters?
You face north and look down at the compass in your hands. Is the north end of the compass needle pointing in front of you, behind you, to your left or to your right?
Since you face north and look down at the compass in your hands. The north end of the compass needle would be pointing in front of you if you are facing north and looking down at the compass in your hands.
What is the compass about?A compass is a navigation tool that uses a magnetized needle to indicate the direction of magnetic north. The needle is suspended within a casing, which typically has a rotating bezel or housing marked with cardinal directions such as north, south, east, and west. The north end of the needle is typically painted or labeled differently than the south end to help identify it.
Therefore, When you face north and look down at the compass in your hands, the north end of the needle will point in the direction of magnetic north. Since you are facing north, the north end of the needle will point in front of you, towards the direction you are facing. This is because the needle aligns itself with the Earth's magnetic field and points towards the magnetic north pole.
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conservation of momentum: a 328-kg car moving at 19.1 m/s in the x direction hits from behind a second car moving at 13.0 m/s in the same direction. if the second car has a mass of 790 kg and a speed of 15.1 m/s right after the collision, what is the velocity of the first car after this sudden collision?
The velocity of the first car after this sudden collision will be 14 m/s.
What is the momentum conservation principle?The conservation of momentum. According to the law of conservation of momentum, the overall momentum of two or more bodies acting on one another in an isolated system stays constant unless and until an external force is introduced. As a result of this, momentum cannot be created or destroyed.
Can momentum be lost or gained?Unless an external force is introduced, the overall momentum of two or more bodies operating on one another in an isolated system stays constant. As a result, momentum cannot be generated or lost.
How do you calculate the velocity of the first car after collision?We have,
mV + Mv = mU + Mu
We solve for U = (mV + Mv - Mu)/m = (328*19.1 + 790*13 - 790*15.1)/328 = 14 m/s
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Look back at dr. wright’s research about personalize cancer therapy. identify the problem she wanted to solve
One of the top doctors and scientists of her era, Dr. Jane C. Wright examined hundreds of drugs for their ability to eradicate human tumors and investigated how these drugs could be tested in cell culture. Her body of work revolutionized both cancer research and medical practice.
What is cancer?Changes (mutations) to the DNA within cells are what lead to cancer. A cell's DNA is organized into a large number of distinct genes, each of which carries a set of instructions directing the cell's various functions as well as its growth and division.
Drugs are used in chemotherapy to kill cancer cells. radiation treatment High-powered energy beams, like X-rays or protons, are used in radiation therapy to kill cancer cells. Radiation therapy devices can either be placed inside or outside of your body (external beam radiation) (brachytherapy)
Her work was simply about how to eradicate cancer.
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All of the following are ways to create space for yourself in a basketball game except
O Shot fake
O Pivot
O Pass fake
O Jump shot
All of the following are ways to create space for yourself in a basketball game except Jump shot and is therefore denoted as option D.
What is Basketball?This is referred to as a type of game or sport which is played between two teams of five players in which goals are scored by throwing a ball through a netted hoop fixed at each end of the court.
There are different skills which are used to evade opponents called dribbling and they include shot fake, pivot etc. However, a jump shot is used to score and not to dribble and is therefore the reason why it was chosen as the correct choice.
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Help :(((((((((((((((((((
From the given position -time graph it is clear that, Amiya covers a distance of 40 meters within 12 seconds.
What is position -time graph ?A position - time graph is used to determine the change in position with respect to the time. We can calculate the average speed of the object from the position -time graph.
Speed is the measure of distance covered within unit time. Hence, it is the ratio of change in position to the change in time. Speed has the unit of m/s .It can also defined as the rate of displacement of an object.
From the given plot, it is clear that the Amiya is 40 meters far after 12 seconds run. After that she stops and the position gets constant. Hence, option A is correct.
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an airplane whose speed in still air is 760 km/h can travel 2000 km with the wind in the same amount of time that it takes to fly 1800 km against the wind. what is the speed of the wind?
An airplane whose speed in still air is 760 km/h can travel 2000 km(200) * (760 )=3800w . The speed of the wind=40.
What is speed and what is its unit in physics?The pace at which a distance changes over time is referred to as speed. It has a dimension of time-distance. As a result, the fundamental unit of time and all basic unit of travel are combined to form the Rectangular cross - section of speed. Thus, the metre per second (m/s) is the Input to the system of speed.
What does physics' law of speed entail?We can define our concepts first. Speed (s) is defined as the difference traveled per unit of time (d/t). Speed and furthermore a direction equals velocity.
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