The essential prerequisite for destructive interference is a half-wavelength shift between the two waves.
Whenever two identical waves are superimposed in phase, constructive interference happens. When two identical waves are overlaid perfectly out of phase, destructive interference results.
What occurs when two waves interact destructively?Interference that is detrimental is what this is. The crest of one wave will exactly meet up with the trough of the second wave, and they will cancel each other out if the two waves (with the same amplitude) are moved by exactly half a wavelength when they combine.
Two waves must have the same amplitude traveling in opposing directions in order to interact destructively.
learn more about Interference refer
https://brainly.com/question/2166481
#SPJ4
a metal of length 15.04cm is heated until its temperature rises by 65°c. if its new length is 16.00m calculate its linear expansivity
Answer:
ΔL = L0 C ΔT
We need to find C the constant of expansivity
C = ΔL / (L0 ΔT)
C = .96 / (15.04 * 65) = 9.82 * 10^-4 / deg C
two objects are initially the same height above the ground. simulateneously, one is released from rest and the other is shot off horizontally with an initial speed of 1.5 m/2. the two objects collide after falling 20 m. how far apart were the objects initially?
16.97 meters
First of all, let's list out the given values: Initial speed of the horizontally launched object (u)= 1.5 m/s. Height of the fall of objects (s)= 20mLet the distance between the objects at initial be 'x.'We know that the horizontally launched object has been in motion for a time equal to the time taken by the other object to fall 20 meters. Therefore, Let T be the time taken for the object to fall, Using formula 2s/g, (s= 20 m, g= 9.8 m/s²)20 = 0.5 * 9.8 * T²Therefore, T = 2.02 s. (approx.)Now, the distance traveled by the horizontally launched object in this time T is equal to the distance traveled by the free-falling object, given by: Distance = Initial speed * time traveled (using formula, s= ut)Distance = 1.5 m/s * 2.02 s = 3.03 m (approx.)Therefore, the total initial distance between the objects is equal to the distance traveled by the free-falling object plus the distance traveled by the horizontally launched object during this time. Therefore, Initial distance between the objects = 3.03 m + x = 20 m (given). Therefore, x = 16.97 m (approx.)Thus, the distance between the objects initially is approximately equal to 16.97 meters.
Learn more about initial speed
brainly.com/question/19348878
#SPJ11
Suppose that an object is dropped from a height of hy meters and hits the ground with a velocity of v meters per second. Then v 1962 an object is dropped from a height of 269 meters, with what velocity does it hit the ground? Round your answer to the nearest tenth. meters per second
Answer:
The velocity at which it hit the ground is 72.6 meters.
Explanation:
The v1962 an object is dropped from a height of 269 meters.The Kinematic equation for free fall is v² = u² + 2gh.where v is the final velocity, u is the initial velocity, and g is the acceleration due to gravity.So,
h = 269 meters
u = 0 m/s ( 0 for a dropping object )
g = 9.8 m/s²
By Substitute the kinematic equation
v² = u² + 2gh
v² = 0 x 0 + 2 x 9.8 x 269
v² = 0 + 5272.4 => 5272.4
v = √5272.4
v = 72.6
Therefore the object is dropped from a height of 269 meters, it will hit the ground with a velocity of 72.6 meters per second.
To know more about velocity,
brainly.com/question/22038177
brainly.com/question/24567267
please see the picture
Answer:
t.f. are you sure that's english? it looks like not a real thing
Explanation:
the weight of a body is 420 newton.calculate it's mass
Answer:
42g
Explanation:
the mass of a body is given by
m=weight/gravity
=420/10
=42
I hope this helps
the bar magnet is pushed toward the center of a wire loop. which is true? a. there is a clockwise induced current in the loop. b. there is a counterclockwise induced current in the loop. c. there is no induced current in the loop. question 25.7
b) "There is a counterclockwise induced current in the loop" is true.
When a bar magnet is pushed toward the center of a wire loop, an induced current is generated in the loop due to electromagnetic induction.
This phenomenon is described by Faraday's law of electromagnetic induction.
According to Faraday's law, when there is a change in the magnetic field passing through a loop of wire, an electromotive force (emf) is induced in the loop, which in turn leads to the generation of an induced current.
In this scenario, as the bar magnet is pushed toward the center of the wire loop, the magnetic field passing through the loop changes.
To determine the direction of the induced current, we can apply Lenz's law, which states that the induced current will flow in a direction that opposes the change in magnetic field.
Since the bar magnet is being pushed toward the loop, the magnetic field passing through the loop is increasing.
Therefore, to oppose this increase, the induced current will flow in a direction that produces a magnetic field opposing the magnet's approach.
By applying the right-hand rule for the direction of induced current, we find that the magnetic field produced by the induced current should be directed out of the plane of the loop.
Using the right-hand rule, we can determine that the induced current will flow counterclockwise in the loop.
Hence, as the bar magnet is pushed toward the center of the wire loop, a counterclockwise induced current is generated in the loop due to the change in the magnetic field passing through it.
Learn more about current at: https://brainly.com/question/24858512
#SPJ11
A train car of mass 16,500 kg moves along the railroad track with a constant speed of 14 m/s. What is the momentum of the car?
Explanation:
Here,
Mass=16,500kg.
speed=14 m/s.
we know that,
\(\tt{ p=m×v }\) ⠀
where,
p=momentum
m=mass
v=velocity
according to the question,
\(\tt{ momentum =mass×velocity }\) ⠀
\(\tt{ 16500×14 }\) ⠀
\(\tt{ 231000~kg.m/s }\) ⠀
so,
velocity of the car is 231000kg.m/s
Please help AP Physics!!!
A simple pendulum consists of a sphere tied to the end of a string of negligible mass. The sphere is pulled back until the string is horizontal and then released from rest. Assume gravitational potential energy is zero when the sphere is at its lowest point. What angle will the string make with the horizontal when the kinetic energy and the potential energy of the sphere-Earth system are equal?
Greater than 45°
Equal to 45°
Less than 45°
It cannot be determined without knowing the mass of the sphere.
Answer:
Explanation:
Less than 45!
The angle that the string will make horizontally while Kinetic Energy and Potential Energy being equal of the sphere-Earth system would be:
C). Less than 45°
Given that,
Gravitational potential energy = 0
Mass = negligible
Since the body is released from the state of rest and the sphere is present its lowest point, the angle(θ) that it creates would be :
\(mgh =\) \(\frac{1}{2} mv^2\) (\(v = L,\) θ)
θ = less than 45°.
θ < 45°
Thus, option C is the correct answer.
Learn more about "Kinetic Energy" here:
brainly.com/question/9349250
The value of electrostatic free constant in a free state
1 / (4πε₀) is the electrostatic constant in a free state.
The electrostatic constant, also known as the electric constant or the vacuum permittivity, is a fundamental physical constant that describes the strength of the electric force between two charged particles. Its value is denoted by the symbol ε₀ (epsilon naught) and is approximately equal to 8.854187817 x 10^(-12) C^2/N·m^2.
The electrostatic constant arises from Coulomb's law, which states that the force between two charged particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. Mathematically, Coulomb's law can be expressed as:
F = k * (q₁ * q₂) / r²
Here, F represents the electrostatic force, q₁ and q₂ are the charges of the particles, r is the distance between them, and k is the electrostatic constant. By rearranging the equation, we can isolate the value of k:
k = F * r² / (q₁ * q₂)
The value of k depends on the system of units used. In the SI (International System of Units), the electrostatic constant is defined as:
k = 1 / (4πε₀)
Where ε₀ is the vacuum permittivity or the electrostatic constant in a free state. Its value is derived experimentally and represents the electric constant in a vacuum or free space.
Know more about Coulomb's law here:
https://brainly.com/question/506926
#SPJ11
If a car started to move from rest position ,after 6 second its acceleration became 5/m2.What will be final velocity of car
Answer:
the final velocity of the car after 6 seconds of acceleration is 30 m/s.
Explanation:
The final velocity of the car can be found using the kinematic equation:
v = u + at
where u is the initial velocity (which is zero since the car starts from rest), a is the acceleration (which is 5 m/s^2), t is the time elapsed (which is 6 seconds).
Substituting the given values, we get:
v = 0 + 5 x 6
v = 30 m/sHow would you describe the relationship of an object’s speed
Answer: Average speed is distance divided by time interval for the distance traveled.
Explanation: I hope that helped!
1. Which indicates the vertical component of a sound wave?
A. Amplitude
B. Direction
C. Frequency
D. Speed
2. Which term is synonymous to "Pitch"?
A. Amplitude
B. Direction
C. Frequency
D. Speed
Answer:
1.) Amplitude (How loud something is)
2.) Frequency
Help Plsss
Which of the following objects are subject to the law of universal gravitation? (circle all that apply)
a. Satellites
b. Water
c. Frogs
d. Stars
Can an automobile with a velocity toward the north simultaneously have an acceleration toward the south? Explain.
Matter comprises all of them and some of them are independent. What are they?
Answer:
elementary particles?
Matter is composed of elementary particles i.e. quarks and leptons.
Matter is composed of elementary particles which is called quarks and leptons. Quarks consist of protons, neutrons and electrons. All observable matter is made up of up quarks, down quarks and electrons.
Lepton is an elementary particle consist of half-integer spin that does not undergo strong interactions. Leptons exist on two main classes i.e. charged leptons, and neutral leptons. Electron, electron neutrino, muon, muon neutrino, tau and tau neutrino are the six types of leptons.
Learn more: https://brainly.com/question/24802191
A sound wave enters a new medium where sound travels faster. How does this affect the frequency and wavelength of the sound?
OA. The frequency Increases and the wavelength decreases.
OB. The frequency decreases and the wavelength increases.
OC. The frequency stays the same and the wavelength increases.
OD. The frequency stays the same and the wavelength decreases.
ОЕ. Neither the frequency nor the wavelength is affected.
The frequency stays the same and the wavelength increases.
Explanation;
Sound waves are a type of mechanical wave which requires a material medium for transmission. The transmission of such waves occurs as a result of vibration of particles in the material medium. The faster the vibration of the particles the higher the speed of the sound waves.
When a sound enters a new medium where the sound travels faster, it means the vibration of particles is high, and the wavelength of the waves increases which means the speed of the wave has increased. The frequency on the other hand will remain constant.
Answer:
A. The frequency stays the same and the wavelength decreases
Explanation:(Plato)
) Figure 3 shows the dimensions of a solid block of concrete.
1.5m.
Figure 3
Density of concrete, p, 2100 kg/m².
Calculate the mass of the concrete block.
Use the equation
m=pxv
1.0m
10.20m
The mass of the concrete block is 107100 kg if the Density of concrete is 2100 kg/m².
Density is the ratio of mass to volume. it tells how much mass a body is having for its unit volume. for example egg yolk has 1027kg/m³ of density, means if we collect numbers of egg yolk and keep it in a container having volume 1 m³ then total amount of mass it is having will be 1027kg. Density is a scalar quantity.
In this problem,
three dimensions of the block is given as, 1m 10.20m and 5m.
the volume of the block is V = 1×5×10.20 = 51 m³.
the mass of the concrete is m = Density × Volume
m = 2100 kg/m² × 51 m³
m = 107100 kg
To know more about Density :
https://brainly.com/question/29775886
#SPJ1.
An 1850 kg car is moving to the right at a constant speed of 1.44 m/s.
a. What is the net force on the car?
b. What would be the net force on the car if it were moving to the left?
Answer:
Read explanation and see if that helps
Explanation:
Newton's second law of motion states that the force on an object is given by f = ma. since the car is moving to the right at a constant speed of 1.44 m/s the acceleration a = 0. this means that there is no net force driving the car.
direction doesnt matter as long as the car is moving in a straight line at a constant speed the force will always be zero
The acceleration of the car in both directions (right and left) is zero.
The given parameters;
mass of the car, m = 1850 kgspeed of the car, v = 1.44 m/sThe net force on the car is calculated by applying Newton's second law of motion as shown below;
F = ma
where;
a is the acceleration of the carAt constant speed, the acceleration of the car will be zero
F = m(a)
F m(0)
F = 0
When the car is moving left, the net force is also zero since the acceleration is zero.
Thus, the acceleration of the car in both directions (right and left) is zero.
Learn more here:https://brainly.com/question/19887955
Do all waves travel at the same speed in different materials
No, not all waves move through various materials at the same pace. The characteristics of the medium itself, the kind of wave, and the frequency of the wave are only a few of the variables.
that affect how quickly a wave moves through a given medium. Sound waves, for instance, go through various materials at varying rates, depending on the density and elasticity of the medium. In general, solids transmit sound more quickly than liquids or gases do. Similar to how sound waves go through various materials at various rates, depending on the refractive index of the medium. Light waves, for example, constantly travel in a vacuum at a constant speed of around 299,792,458 meters per second (or about 186,282 miles per second). Nevertheless, as they go on.
learn more about speed here:
https://brainly.com/question/28224010
#SPJ4
The position x for a particular simple harmonic oscillator as a function of time t is given by x() = 0.15.cos (pi1 + pi/7), withx
measured in meters and measured in seconds.
is What is the velocity v of the oscillator at t = 1.0 s?
m/s.
What is the acceleration a of the oscillator at t = 2.0 s?
a
m/s?
The velocity of the oscillator at t = 1.0s is approximately 0.006 m/s, and the acceleration of the oscillator at t = 2.0s is approximately -1.381 m/s².
In a simple harmonic oscillator, position, velocity, and acceleration are related to each other. The position function is given as x(t) = 0.15cos(πt + π/7), with x in meters and t in seconds.
To find the velocity, we need to take the first derivative of the position function with respect to time:
v(t) = dx/dt = -0.15πsin(πt + π/7).
At t = 1.0s, the velocity is:
v(1) = -0.15πsin(π(1) + π/7) = -0.15πsin(8π/7) ≈ 0.006 m/s.
To find the acceleration, we need to take the second derivative of the position function with respect to time:
a(t) = d²x/dt² = -0.15π²cos(πt + π/7).
At t = 2.0s, the acceleration is:
a(2) = -0.15π²cos(π(2) + π/7) = -0.15π²cos(9π/7) ≈ -1.381 m/s².
To learn more about velocity click here https://brainly.com/question/30559316
#SPJ11
The James Webb Space Telescope is positioned around 1.5 million kilometres from the Earth on the side facing away from the Sun. The telescope remains at this distance and orbits around the Sun with the Earth’s orbital velocity.
--Determine the angular velocity ω of the telescope as it orbits around the Sun.
--The centrifugal Fω and gravitational force FG are acting on objects orbiting the Sun: F =Fω−FG. Based on this, how much should the telescope accelerate towards or away from the Sun?
--Why is the orbit of the telescope stable nonetheless? What other forces need to be considered?
The angular velocity depends on the length of the orbit and the orbital
speed of the telescope.
Response:
First question:
The angular velocity of the telescope is approximately 0.199 rad/sSecond question:
The telescope should accelerates away by approximately F = 0.0005·mThird question:
The pulling force between the Earth and the satelliteWhat equations can be used to calculate the velocity and forces acting on the telescope?The distance of the James Webb telescope from the Sun = 1.5 million kilometers from Earth on the side facing away from the Sun
The orbital velocity of the telescope = The Earth's orbital velocity
First question:
\(Angular \ velocity = \mathbf{\dfrac{Angle \ turned}{Time \ taken}}\)
The orbital velocity of the Earth = 29.8 km/s
The distance between the Earth and the Sun = 148.27 million km
The radius of the orbit of the telescope = 148.27 + 1.5 = 149.77
Radius of the orbit, r = 149.77 million kilometer from the Sun
The length of the orbit of the James Webb telescope = 2 × π × r
Which gives;
r = 2 × π × 149.77 million kilometers ≈ 941.03 million kilometers
Therefore;
\(Angular \ velocity = \dfrac{29.8}{941.03}\times 2 \times \pi \approx 0.199\)
The angular velocity of the telescope, ω ≈ 0.199 rad/sSecond question:
Centrifugal force force, \(F_{\omega}\) = m·ω²·r
Which gives;
\(F_{\omega} = m \cdot \dfrac{28,500^2 \, m^2/s^2}{149.77 \times 10^9 \, m} \approx 0.0054233 \cdot m\)
\(Gravitational \ force, F_G = \mathbf{G \cdot \dfrac{m_{1} \cdot m_{2}}{r^{2}}}\)
Universal gravitational constant, G = 6.67408 × 10⁻¹¹ m³·kg⁻¹·s⁻²
Mass of the Sun = 1.989 × 10³⁰ kg
Which gives;
\(F_G = 6.67408 \times 10^{-11} \times \dfrac{1.989 \times 10^{30} \times m}{149.77 \times 10^9} \approx 0.00592 \cdot m\)
Which gives;
\(F_{\omega}\) < \(F_G\), therefore, the James Webb telescope has to accelerate away from the Sun
F = \(\mathbf{F_{\omega}}\) - \(\mathbf{F_G}\)
The amount by which the telescope accelerates away is approximately 0.00592·m - 0.0054233·m ≈ 0.0005·m (away from the Sun)
Third part:
Other forces include;
The force of attraction between the Earth and the telescope which can contribute to the the telescope having a stable orbit at the given speed.Learn more about orbital motion here:
https://brainly.com/question/11069817
If these represent distances in meters, the
new (resultant) vector could be written as
5 m W
5 m E
11 m W
11 m E
The new (resultant) vector could be written as 0 m, since the vectors cancel each other out. The vector going 5 m West is cancelled out by the vector going 5 m East, and the vector going 11 m West is cancelled out by the vector going 11 m East. This means that the final result is a vector with a magnitude of 0 and no direction.
HELP I GIVE BRAINLIST
which of the following is a abiotic factor ?
A ) pH level of water
B ) Coral Reef
C ) fish
D ) seaweed
Answer:
it's A
Explanation:
it's A because the ph level of water is just the level of the water if it's acidic or just a base
Question 8 of 10
What is the equivalent resistance of the circuit?
120.0 V
OA. 40.0 2
Β. 200.0 Ω
C. 20.02
D. 80.0 2
60.002
20.0 Ω
The equivalent resistance of the circuit will be option (D) 80.0 Ω
According to Ohm's law, the voltage across two places is precisely proportional to the current flowing through a conductor between them.
The obstruction to current flow in an electrical circuit is measured by resistance. The Greek letter omega (Ω) represents the unit of measurement for resistance, known as ohms. Georg Simon Ohm is the name given to ohms.
Since in the given figure the resistance are in series so there equivalent resistance will be sum of the two resistance. If they were in parellal connection then we will add reciprocal of their resistance.
Let R1 = 60 Ω and R2 = 20 Ω. So their equivalent resistance will be as follow:
R = R1 + R2
R = 60 + 20
R = 80 Ω
Hence the equivalent resistance of the circuit will be 80 Ω
Learn more about resistance here:
https://brainly.com/question/14883923
#SPJ10
calculate the work done by a girl of mass 40 kg when she climbs a stair case of 20 steps each of height 10 cm and acceleration is 10Nkg^-1
Answer:
i think its a 800x² hope you like it
Answer:
8964
Explanation:
465
a piano wire with mass 3.45 gg and length 80.0 cmcm is stretched with a tension of 30.0 nn. a wave with frequency 120 hzhz and amplitude 1.60 mmmm travels along the wire.
The average power carried by the wave is 0.262. When amplitude is halved, the average power decreases by 4 to 0.065W.
a) The averaged power of a wave on a string is given by Pavg = 1/2 (√(µF)) A^2 w^2
According to the given data,
Mass of piano wire m = 3g = 0.00345kg
Length of piano wire l = 80cm = 0.8m
Tension F = 30 N
Frequency f = 120 Hz
Amplitude A = 1.6mm = 0.0016m
Angular frequency ω = 2πf = 2π (120) = 240π s^-1
Linear mass density μ = m/l = 0.00345/0.8 = 0.00431 kg/m
Hence,
Pavg = 1/2 (√(0.00431*30)) 〖0.0016〗^2 〖(240π)〗^2
Pavg = 0.262W
b) As the average power is always proportional to the square of amplitude, hence
Pavg1/Pavg2 = (A1/A2)^2
0.262/Pavg2 = (0.0016/0.0008)^2
0.262/Pavg2 = 4
Pavg2 = 0.065W
Note: The question is incomplete. The complete question probably is: A piano wire with mass 3.45g and length 80.0 cm is stretched with a tension of 30.0 N. A wave with frequency 120.0 Hz and amplitude 1.6 mm travels along the wire. (a) Calculate the average power carried by the wave. (b) What happens to the average power if the wave amplitude is halved.
Learn more about Averaged power:
https://brainly.com/question/24228412
#SPJ4
A student used three appliances in her dormitory room: a 1,200-watt iron, which she uses 3.5 hours per month: a lamp with a 100-watt bulb she uses 125 hours per month; and a 700-watt coffee maker, which she uses 15 hours month hours per month
A 12kg aluminum box is sliding along a horizontal steel surface while experiencing a rightward applied force of 60N. The box has a displacement of 20m. What is the Net Force acting on the box? *
A.)60N
B.)117.72N
C.)4.67 N
D.)-55.33N
what refers to a type of cable composed of four copper wires twisted around each other within a plastic sheath?
Twisted-pair wiring is a category of cable that is comprised of four copper cables that have been wound around one another and encased in a plastic sheath.
What purpose does a twisted pair cables serve?Also with copper wires, twisted-pair cables were some of the first guided transmission medium. Twisted-pair cables are utilized in a variety of networking and communication applications today, including local area networks, digital subscriber lines, and phone lines.
Where can you use twisted pairs?The common copper cable known as twisted pair is used to link residential and commercial systems to the phone provider. Two copper pipe wires are wound around each other in a spirally to minimize electromagnetic induction or crosstalk between pairs of wires. Twisted pair connections require both wires for each connection.
To know more about Twisted-pair wiring visit:
https://brainly.com/question/14661230
#SPJ4
Order the following objects from smallest to largest, according to their radii.White DwarfStarBlack HoleNeutron Star
Ordering the objects from smallest to largest according to their radii, we have:
1. Black Hole
2. Neutron Star
3. White Dwarf Star
Two components make up black holes. You can see the event horizon as the surface, but it is actually just the location where gravity becomes too powerful for anything to escape. The singularity is then located at the center.
Any member of a class of highly dense, compact stars assumed to be predominantly made of neutrons is a neutron star. The average diameter of a neutron star is 20 km (12 miles).
After using up all of their nuclear fuel, stars like the Sun become white dwarfs. This kind of star expels the majority of its outer material as it nears the conclusion of its nuclear burning cycle, forming a planetary nebula. The star's scorching core is all that is left.
To know more about radii click here:
https://brainly.com/question/8137711
#SPJ11