The piston's position, velocity, and acceleration at t = 1.15 s are :
Position: 3.45 m
Velocity: 3 m/s
Acceleration: 0 m/s^2
To calculate the piston's position, velocity, and acceleration at t = 1.15 s, we need to know the angular position, velocity, and acceleration of the wheel.
The angular position of the wheel at t = 1.15 s is given by
θ = ωt + [tex]A_{0}[/tex]
where ω is the angular frequency, t is the time, and [tex]A_{0}[/tex] is the initial angular position.
Since the angular frequency is given as 12 rad/s and the initial angular position is 0, the angular position of the wheel at t = 1.15 s is
θ = 12 x 1.15 = 13.8 radians
The piston's position is given by
r = Rθ
where R is the radius of the wheel.
Substituting the value of R and θ,
r = 0.25 x 13.8 = 3.45 m
The velocity of the piston is given by
v = r' = Rθ' = Rω
Substituting the values
v = Rω = 0.25 x 12 = 3 m/s
Acceleration of the piston is given by
a = v' = Rθ'' = Rω' = R(ω^2)θ
As the angular frequency is constant, the angular acceleration is 0 so the linear acceleration is also 0.
Note: Linear acceleration is not equal to the derivative of linear velocity, it is equal to the derivative of velocity with respect to time, which is zero in this case.
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How can the efficiency of a simple machine be increased?
Answer:
Reduce friction
Please help me with this no wrong answer I am begging you please help me ASAP thanks
Answer: Hope This Helps!
Explanation:
1: The first one is true because, if it was full there would be more weight and you would have to apply more force for it to start moving. But an empty one you don't have to apply so much force to it. (Newtons 2nd Law.)
2: The second one is true because, the skate board has a lot of kinetic energy and when it hits the rocks a collosion occurs where all the enrgy points into the front of the board and the back side lifts of the floor so it flips over the rock.(Newtons 1st Law.)
3: The third one is false because, the road cant push onto the tire the tire can push onto the road though. Additional information: Also the when the tire pushes on the road friction happens and because of the rough surface of the road.(Newtons 3rd Law.)
A baseball bat strikes a ball resting on a tee with a force with a magnitude of 2. 0x10^4 newtons. If the bat stays in contact with the ball for a distance of 5. 0x10^-3 meter, what kinetic energy will the ball acquire from the bat?
The kinetic energy will the ball acquire from the bat is 1.0x10^1 joules or 100 joules. This calculation is based on the equation Energy = Force x Distance, which is a fundamental equation of physics.
The kinetic energy of the ball is equal to the work done by the bat on the ball. The work done by the bat on the ball is equal to the force applied by the bat multiplied by the distance the bat stays in contact with the ball. Therefore, the kinetic energy of the ball would be equal to 2.0x10^4 newtons multiplied by 5.0x10^-3 meters, which is equal to 1.0x10^1 joules or 100 joules.
This calculation is based on the equation of Energy which is Force x Distance. Additionally, this equation can be rearranged to solve for any of the variables, depending on what is known and what needs to be calculated. In this case, the known variables were the force applied by the bat and the distance the bat stayed in contact with the ball, and the variable that needed to be calculated as the kinetic energy of the ball.
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replace the force system acting on the post by a resultant force and couple moment at point o
By replacing the force system acting on the post with a resultant force and a couple of moments at point o we get total momentum of 1478.85 ft-lb.
As per the figure we have 3 forces: At the top 300lb left side 150lnb and at the middle 200lb.
first, we have to break down the forces into x and y components.
Now calculating each force separately:
∑Fₓ=300lb+cos 30°-150×4/3+200
=259.81-120+200
∑Fₓ=339.81lb.
Now, calculate the sum of y components.
∑Fy=300 sin 30°+150×3/5
∑Fy=300 sin 30°+90
∑Fy=240lb
Now we have to x and y components by these values we can find the actual force.
|F|=√Fx²+Fy²
|F|=√(339.81)²+(240)² α=tan⁻¹(∑Fₓ/∑Fy)
|F|=√115470.83+57600 α=tan⁻¹(339.81/240)
|F|=√173070 α=35.23°
|F|=416.02 and 35.23°
the sum of moments at O
∑Mo=-Fx₃×2+Fx₂×4-Fx₁×6
∑Mo=-200(2)+4/5 150*4-3000cos30°(6)
∑Mo=-400+480-277.65
=1478.85ftlb
∑Mo=1478.85ftlb
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calculate the frequency of the red light emitted by a neon sign with a wavelength of 659.9 nm.
The frequency of the red light emitted by a neon sign with a wavelength of 659.9 nm is 4.5×10^14 Hz.
What is the frequency?The frequency is the number of times a recurring occurrence takes place during a predetermined period. For example, if an event occurs twice in one second, then the frequency is 2 Hz (Hertz).
A recurring event's frequency is the number of times it happens in a predetermined period. For example, a frequency of a wave is the number of wave peaks passing a fixed point in one second.
The frequency is the number of times something occurs in a given period. For example, the frequency of a radio station is the number of times it broadcasts a signal per second.
Given:
Wavelength = 659.9nm
Speed of light = 3×10^8 m/s
Frequency = speed of light / wavelength
Frequency = (3.0 x 10^8 m/s) / (659.9 nm)
Frequency = 4.5 x 10^14 Hz
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Lila swam 50 meters north in 10 seconds. Find Lila's velocity
Explanation:
50 meters north in 10 seconds.
speed = distance ÷ time = 50 meters ÷ 10 seconds = 5m/s
How much power flows through a circuit with 5 amps and 120 volts?
2. A 1.0 kg roller coaster is at the top of a 25m hill, and has a velocity of 8 m/s.
a. Determine the velocity of the roller coaster when it is halfway down the hill, at height of 12.5 m. (Ignore Friction)
b. What is the velocity of the roller coaster at the bottom of the hill assuming a force due to friction of 3.0 N, and the length of the hill is 45.0 m.
SHOW ALL WORK!
The car's acceleration can be calculated as: a = v2/R = (18.0 m/s) 2/(12.0 m) = 27.0 m/s2. The conventional method can be used to determine net force: 13500 N is equal to Fnet = m•a = (500 kg)•(27.0 m/s2).
What happens to a roller coaster's speed as it climbs a hill?It may slow down or decelerate when traveling uphill or straight ahead. Roller coasters accelerate as they travel down hills due to the force of gravity dragging them downward.
How do roller coasters use math?Calculus and other fundamental mathematical concepts are used to calculate the maximum speed, the angles of ascent and descent, and the height necessary for the automobile to climb the next hill. The roller coaster's safety is further ensured by these calculations.
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please answer its due in 10 mins plsss
Answer:
5kg is 5000gm hope it helps
A soft drink bottle resonates as air is blown across its top. What happens to the resonant frequency as the level of fl uid in the bottle decreases
As air is blowing across the top of a soft drink bottle, it reverberates. The frequency grows as the chamber's length lengthens.
Who defines frequency?The frequency of physics is the number of waves that pass by a specific location in a time period. According to this concept, how several cycles or waves do a body in periodical motion experience in a single unit of time?
What is a wave length?The distance between normal incidence (adjacent crests) in adjacent cycles determines how far a waveform signal has traveled in place or over a wire. In wireless systems, this length is often expressed in metres (m), centimeters (cm), or millimeters (mm) (mm).
Therefore, As air is blown, a soda pop bottle reverberates.
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PLZ HELP, GIVING BRAINLIEST!!
A student uses a 320 Hz tuning fork during a lab investigation into the speed of sound. If the air temperature in the classroom is 20 degrees Celsius, what is the wavelength of the sound waves produced by the tuning fork?
A. 1.07 m
B. 3.43 m
C. 0.933 m
D. 343 m
E. 343 m
Answer:343m
Explanation:
What is the difference between static stretching and passive stretching?
The difference between static stretching and passive stretching is that static stretching is done independently by moving the body, while passive stretching is done using outside assistance.
Stretching is the activity of carrying out movements aimed at flexing or relaxing stiff body parts. Stretching is done to avoid muscle injury because it has benefits such as flexibility, range of motion, circulation, and range of motion of the joints.
There are several types of stretching to relax the body, two of which are static stretching and passive stretching. Static stretching is a movement that is done slowly on the muscles until there is tension and pain. While passive stretching is stretching that is done with outside help such as using a tool or asking for help from others to relax and flex certain muscle parts. So the difference between the two stretches is that static stretching is done independently by moving the body itself, while passive stretching is done using outside help.
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PLEASE HEELP!!!
The electrical potential energy, the force that powers an electrical circuit is ____________. *
A.current
B.voltage
C.resistance
D.Velocity
Answer:
The "pressure" of the electricity is electric potential. Electric potential is the amount of energy available to push each unit of charge through an electric circuit. The unit of electric potential is the volt. ... A volt is the force needed to move one amp through a conductor that has 1 ohm of resistance
An electric dipole is formed from +/- 5. 0 nC point charges spaced 3. 0 mm apart. The dipole is centered at the origin, oriented along the y-axis. Part A What is the electric field strength at point (x, y) = (25 mm, 0 cm)? Express your answer using two significant figures. Part B What is the electric field strength at point (x, y) = (0 cm, 25 mm)? Express your answer using two significant figures
The electric field strength at point (x,y) = ( 25 mm ,0cm) is =16321.0769 N/C
The electric field strength at point (x,y) = (0cm, 25 mm) is =35321.58999 N/
What is meant by electric strength?An insulating substance can withstand a certain voltage at its electric strength before losing its ability to insulate. The thickness of the insulating material, as well as the test technique and conditions, will all affect the value for the electric strength.To avoid flash over before breakdown, samples with a thickness of 2mm or more are often examined in oil. Once the breakdown voltage and sample thickness have been determined, the dielectric strength may be estimated. Dielectric strengths for the majority of polymers range from 10 to 30 kV/mm, which is a respectable value.A material's capacity to withstand large voltage swings without experiencing current breakdown is measured by its dielectric strength.To learn more about electric strength refer to:
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The electric field strength at point (x,y) = ( 20 mm ,0cm) is =16321.0769 N/C
The electric field strength at point (x,y) = (0cm, 20 mm) is =35321.58999 N/C
What distinguishes an electric field from an electric field of strength?A vector is a quantity with both a magnitude and a direction, like the electric field. The vector's magnitude corresponds to the electric field intensity.
What do you mean by electric field?Each point in space has an electric field associated with it when there is charge present in any form. E, often known as electric field strength, electric field intensity, or just the electric field, is a mathematical constant that expresses the strength and direction of an electric field.
Given:
Charge = 5.0 nC
x = 25 mm, y = 0 cm
The electric field at any given point of the dipole is given as:
E= (KP) ÷ (r^2 + a^2)^3/2
Where:
K = 9x10^9 Nm^2/c^2 (coloumb constant)
P = (0.003) (5x10^-9c) which is the movement of the dipole
(0.003) is arrived at when mm is converted to m. 3.0 mm space apart was converted to a meter.
r= the point, in the question above is 20mm = 0.02m
Now, the electric field (E),
E = (KP) ÷ (r^2 + a^2)^3/2
= (9x10^9 Nm^2/c^2) (0.003 m) (5x10^-9c) ÷ [ (0.02m)^2 + (0.003)^2]^3/2
= 0.135 ÷ (8.271513x10^-6)
=16321.0769 N/C
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Una onda sonora se produce durante 1,5 s. Posee una longitud de onda de 2,4 m y una velocidad de 340 m/s.
a) ¿Cuál es la frecuencia de la onda?,
Answer:
Una secadora de cabello tiene una resistencia de 10Ω al circular una corriente de 6 Amperes, si está conectado a una diferencia de potencial de 120 V, durante 18 minutos ¿Qué cantidad de calor produce?, expresado en calorías
Explanation:
Una secadora de cabello tiene una resistencia de 10Ω al circular una corriente de 6 Amperes, si está conectado a una diferencia de potencial de 120 V, durante 18 minutos ¿Qué cantidad de calor produce?, expresado en calorías
A worker is testing a multiple pulley system to estimate the heaviest object that he could lift. The largest downward force he can exert is equal to his weight, 875 N. When the worker moves the rope 1. 5 m, the object moves 0. 25 m. What is the heaviest object that he could lift?
Force is positive if the mass accelerates downward. Use the formula T = M x A to determine the tension in the rope.
How is the force in a pulley system calculated?That direction is the pull that is referred to as tension. As a result, the tension will point toward the string or rope and away from the mass.
A mass suspended by a string is pulled upward by the string, exerting an upper force that shifts the tension to the upper side.
For instance, you should know that T = 9g x 2m/s2 = 18gm/s2 or 18N when trying to calculate T in a straightforward pulley system with a linked mass of 9g and an upward acceleration of 2m/s2 (newtons). The direction in which a string expands changes when it passes over an ideal massless pulley, but the string's tension is unaffected.
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everything is perished.........(is it,isn't it, aren't they, are they
Answer:
everything is perished isn't it?
hope it helps.
Answer:
isn't it is the answer of your question
hope it is helpful to you
The heat is provided by an ignition source which can be human or natural name two natural and two human causes sources or heat for fire ignition
Answer:
The human causes for fire ignition are:
--> fireworks
--> Crime concealment
The natural causes of fire ignition are:
--> Lightning strikes
--> volcanic eruptions.
Explanation:
Heat is a form of energy that can be transferred from one object to another. The combination of a heat source, sufficient oxygen levels and oxidative agent can lead to ignition of fire. Any type of fire ignition has been known to cause a disaster call wildfire.
Fire ignition source can be grouped into two main categories:
--> Human ignition: This is further grouped into three main categories which includes: accident, negligence and voluntary. FIRE WORKS is an example under the negligence category of human fire ignition source. Humans can unintentionally set up fire through the uncontrolled use of glowing objects such as firecrackers. While crime concealment is an example under the voluntary category of human fire ignition source. Here,an individual can intentionally set up fire to conceal a primary crime scene in order to hide evidence.
--> Natural ignition: These are fire origins in which does not involve humans in any way. The LIGHTNING STRIKE is the main example of natural ignition source of fire. This occurs when little to no rain accompanies a stormy weather disturbance. These strikes occurs more frequently in elevated site which can lead to wildfire. While VOLCANIC ERUPTIONS is also an example of a natural ignition source. This occurs when hot molten magma pushes through vents into the earth surface. The explosive nature of this eruption can lead to fire ignition.
which were products that contained cfcs before 1987?
A. Gasoline
B. Paint products
C. Halons
D. Refrigerants
Answer:
The answer is D i took it on the quiz refrigerants
Explanation:
is the electron's speed at f greater than, less than, or equal to its speed at i?
O The electron's speed at f is less than its speed at i. O The electron's speed at f is equal to its speed at i. O The electron's speed at f is greater than its speed at i. O There is not enough data to determine the correct answer.
The correct option is B, The electron's speed at f is equal to its speed at i.
Electrons are subatomic particles that are found in atoms. They are the negatively charged particles that orbit the nucleus of the atom, and they have an extremely small mass. Electrons travel at different speeds depending on their energy level. At their lowest energy level, electrons move at an extremely slow speed, about one thousandth of the speed of light. As the electrons gain energy, their speed increases.
In a vacuum, when electrons have the highest energy level, they can travel at a speed of nearly the speed of light, which is around 186,000 miles per second. In a vacuum, the electrons would have the same speed regardless of their mass. Electrons also move slower inside a material, such as a metal, due to the presence of other atoms. Electrons in metals usually move at a speed of about 1/10th the speed of light. This slower speed is due to the electrons having to pass through energy barriers created by the other atoms in the metal. In general, electrons are very fast particles that can travel at speeds up to nearly the speed of light.
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The average rate of erosion on the Moon is far less than on Earth because
A) the crust of the Moon is much denser than the Earth's crust.
B) the Moon is much younger than the Earth.
C) the Moon's magnetic field protects it from the solar wind better than ours does.
D) the Moon's mare long ago dried up, so there is no more wave erosion there.
E) the Moon lacks wind, water, and an atmosphere.
E) the Moon lacks wind, water, and an atmosphere. The average rate of erosion on the Moon is far less than on Earth because
What is atmosphere?
Atmosphere is the layer of gases surrounding the Earth, composed of nitrogen, oxygen, and other trace elements. It is held in place by the Earth's gravity and is responsible for the air we breathe, the weather we experience, and the climate of the planet.
The atmosphere is also important for providing protection from harmful ultraviolet radiation from the sun and reducing the temperature extremes on the Earth's surface.
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A bullet of mass 50 gm is moving with the velocity of 720 km/hr. Calculate the kinetic energy of the bulet
Answer:
K = 5706.6 J
Explanation:
Given that,
The mass of a bullet, m = 50 g = 0.05 kg
The velocity of the bullet, v = 720 km/hr = 477.77 m/s
We need to find the kinetic energy of the bullet. The kinetic energy of an object is due to its motion. It can be given by the formula as follows :
[tex]K=\dfrac{1}{2}mv^2\\\\=\dfrac{1}{2}\times 0.05\times 477.77 ^2\\\\K=5706.6\ J[/tex]
So, the required kinetic energy of the bullet is equal to 5706.6 J.
1 kgf is equal to __ n.
Answer:
9.80665
Explanation:
What is the largest force that an energy source containing 100 joules can exert continuously over a distance of 25 meters?
The largest force that an energy source containing 100 joules can exert continuously over a distance of 25 meters is 25 Newtons (N).
This means that the energy source can exert a force of 25 N for every 100 joules of energy it contains.
The equation for calculating force is Force = Work/Distance (F = W/D).
So, in this case, Force = 100 Joules/25 Meters = 25 Newtons.
Force is a push or pull exerted on an object. It is measured in units of Newtons (N) and is calculated by dividing the amount of work done by the distance over which the work is done. Force can be used to cause an object to accelerate, change its direction, or change its shape.
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Which of the following is an example of erosion in action ?
Example of erosion: Wind carries small pieces of rock away from the side of a mountain.
Which of the following are examples of erosion?Erosion is the procedure by which the surface of the Earth gets worn down. Erosion can be created by natural elements such as erosion as wind and glacial ice. But everyone who has ever seen a picture of the Grand Canyon knows that nothing strikes the erosion slow steady movement of the water when it comes to commuting the Earth
Rain, rivers, floods, lakes, and the ocean convey away bits of soil and sand and slowly wash away the deposit. Rainfall produces four types of soil erosion: splash erosion, sheet erosion, rill erosion, and ravine erosion.
So we can conclude that Erosion is a ruinous force that wears away land features.
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The image below shows the combined wave for Sound A + B, where Sound A has a higher frequency than Sound B. What is the frequency of Sound A?
The frequency of Sound A is 440.3 Hz.
What is the resultant frequency of the two sound waves?The resultant frequency of the sound A and sound B is calculated as follows;
Mathematically, the relationship between period and frequency of a wave is given as;
F = 1 / T
where;
T is the period of the waveThe resultant frequency from the given graph is calculated as;
The period of the sound in the image = 0.3 s
F = 1 / T
F = 1 / 0.3 s
F = 3.3 Hz
If sound B = 437 Hz, the frequency of sound A which is greater is calculated as;
F ( A ) = 437 Hz + 3.3 Hz
F ( A ) = 440.3 Hz
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A 5-ft3 rigid tank contains 5 lbm of water at 20 psia. Determine (a) the temperature, (b) the total enthalpy, and (c) the mass of each phase of water
After that, we will calculate the temperature, total enthalpy, and masses of each water phase using the steam table.
What are temps and what is its unit?Given the water's initial mass and pressure, we can determine whether it is superheated or saturated by utilizing a steam table. On a variety of scales, including the Fahrenheit and Celsius systems, temperature is a unit that is used to denote hotness or coolness.
Heat energy will logically go from a hotter (body with a higher temperature) to a colder (body with a lower temperature) according to temperature (one at a lower temperature).
A comparison of a substance's temperature to a set of hot and cold reference values can be used to determine its temperature. The letter "T" stands for "temperature," which is denoted by the SI unit of "°C."
The three scales that are most frequently used to measure temperature are the Celsius scale, the Fahrenheit scale, and the Kelvin scale.
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Samuel hits a ball, which is initially at rest, off of a tee. What is the velocity of the ball after it is hit, if Samuel applies 30 J of work to the 1.1 kg ball? It will be helpful to show your work on a separate sheet of paper.
Answer:
7.39 m/s
Explanation:
Applying
K.E = 1/2mv²..................... Equation 1
Where K.E = Kinetic Energy, m = mass of the ball, v = velocity of the ball.
Make v the subject of the equation
v = √(2K.E/m)................. Euqation 2
From the question,
Given: K.E = 30 J, m = 1.1kg
Substitute these values into equation 2
v = √(2×30/1.1)
v = √54.54
v = 7.39 m/s
these illustrate action reaction forces (7 letters)
Answer: opposite
Explanation:
Action reaction forces act in opposite direction to each other.
Si se aplica una fuerza de 3n sobre un sistema se genera 15000 cal de calor generandose a su vez un trabajo de 300 j ¿en cuanto vario su energía?
Answer: +/- 71,65 Calorías
Explanation: Se deduce que la fuerza aplica para aumentar o disminuir la energía del generador.
+/- x Calorías
X = Equivalente de 300 Joules en calorías
Para poder pasar Joules a calorías.
Hacemos una regla de 3 simple
1 Calorías = 4,18 Julios
0,2392 calorías = 1 Julio
( 1 / 4,18 = 0,2392 calorías)
300 Julios = 71,65 calorías
(0,2392 calorías x 300 julios = +/- 71,65 calorías)