The wave characteristic that is the same for both waves is wavelength.
Two waves with the same frequency will also have the same wavelength, amplitude, speed, and period. When two waves are travelling at the same frequency, it denotes that their duration and amplitude are also the same.When two waves of the same frequency and amplitude interfere constructively, their peaks and troughs align as shown in diagram A above. As a result, the original waves' amplitude is doubled, resulting in a sound wave that is twice as loud.Thus, Equal frequencies are shared by two waves moving through the same region in the same direction.
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George has a mass of 65 kg what would George weigh on the moon the gravitational field strength on the moon is 1.6 N
Answer:
Weight of George on Moon =104 N
Explanation:
Transient voltage surge suppressors are used to minimize the damage to connected equipment caused by ___.
The correct answer for fill in blank is line surges and spikes.
What is Transient voltage surge suppressors?
Installed on an AC or DC power line, a transient voltage surge suppressor serves as a cut-off in the event of a brief surge of electrical power, or "transient."
To lessen the harm that line surges and spikes do to connected equipment, transient voltage surge.
Thus ,Transient voltage surge suppressors are used to minimize the damage to connected equipment caused by line surges and spikes.
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an automobile with 0.250 m radius tires travels 60,000 km before wearing them out. how many revolutions do the tires make, neglecting any backing up and any change in radius due to wear?
The tires do 38216560.5 revolutions.
Here, one revolution = circumference of the tire
Circumference of the tire is 2 × π × r
Put values in 2 × π × r
Circumference = 2 × π × r
Circumference = 2 × 3.14 × 0.250 m
Circumference = 1.57 m
Given, tire travelled = 60000 km = 60000000 m
Total revolution = 60000000 m / 1.57 m
Total revolution = 38216560.5
Therefore, The tires do 38216560.5 revolutions.
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a converging lens with a focal length 7.00 cm forms an image of a real object of height 4.00 mm. the image is 1.30 cm tall and upright. the magnification of the lens is .
The magnification of the lens is 0.3 cm.
The magnification of a lens is defined as the ratio of image height to object height. It is also given by image distance and object distance. It is equal to the ratio of image distance to object distance. The magnification of a concave mirror is negative if the image is real and inverted.
calculation:-
The magnification of the lens is = height of image/ height of object
= 1.30 cm/ 4cm
= 0.3
The scale factor is given as 1 which also means two things. The image has the same height as the object. The distance from the mirror to the image is the same as the distance from the mirror to the object. A magnification of less than 1 means that the image produced by the lens is smaller than the original size of the object.
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why does the radial velocity method of detecting extrasolar planets only give us the minimum mass of a planet, i.e. a lower limit?
According to some astronomers, at least some of the "planets" discovered using the radial-velocity method are actually very low-mass stars rather than planets. This issue with radial velocity is caused by the fact that the technique can only track a star's motion in relation to the Earth.
The smallest, coolest, and dimmest Main Sequence stars are low mass stars, which are orange, red, or brown in colour. Low mass stars have masses less than half that of the Sun. Low mass stars have extended lives because their hydrogen fuel depletes very slowly.
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Animals like elephants and birds can foretell of the incoming storm, but humans stay unconcerned. How do they know it?
Animals have been known to exhibit unusual behavior before a storm. This could be due to their keen sense of smell and hearing, along with sensitive instincts. Dogs may also sense the change in barometric pressure that comes with storms, causing them to bark, cuddle, or hide in an attempt to seek shelter.
but in other hand humans did not have much power of smell and hearing therefore they cannot able to foretell.
Hope it helps you.
You place a basketball in the back of a pickup truck and then accelerate the pickup quickly.
Describe the motion of the ball relative to:
(a) the ground and
(b) the pickup.
a)When the pickup truck accelerates forward then the ball will shift to the back of the of the truck because of inertia relative to ground.
b)You place a basketball in the back of a pickup truck and then accelerate the pickup quickly then ball would be traveling at the same speed with respect to the truck.
What do you mean by relative motion?Relative Motion refers to the motion of any object with respect to a particular point.
For example, a ball thrown upward in a moving object such as bus, would be traveling in the same speed with respect to the bus and would fall in relation to that speed.
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If you wanted to search for faint rings around a giant planet by sending a spacecraft on a flyby, it would be best to make your observations.
If we wanted to search for faint rings around a giant planet by sending a spacecraft on a flyby, it would be best to make our observations after the spacecraft passed the planet.
The primary demanding situations involved in sending probes to the giant planets are distance, environment, and low energy levels. All gasoline large planets namely Jupiter, Saturn, Uranus, and Neptune inside the sun gadget have jewelry, at the same time as the terrestrial planets.
Mercury, Venus, Earth, and Mars are no longer.in observations of other planets, Mercury is hard to explore. the rate required to attain it is pretty excessive, and its proximity to the sun makes it difficult to maneuver a spacecraft into a solid orbit around it.
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During the final stage of the cell cycle, cytokinesis allows the cell to finish dividing, creating with copies of dna.
During the final stage of the cell cycle, cytokinesis allows the cell to finish dividing, creating copies of DNA: Cytokinesis is the final stage of cell division in eukaryotes as well as prokaryotes. During cytokinesis, the cytoplasm splits in two and the cell divides.
Cytokinesis is part of the cellular division technique in the course of which the cytoplasm of an unmarried eukaryotic mobile divides into two daughter cells. Cytoplasmic division begins in the course of or after the late tiers of the nuclear department in mitosis and meiosis.
Cytokinesis is the physical procedure of mobile division, which divides the cytoplasm of a parental mobile into daughter cells. It occurs concurrently with forms of nuclear division referred to as mitosis and meiosis, which occur in animal cells.
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Answer:
-Two Cells
-Identical
Explanation:
You're welcome.
A car goes around a curve with a radius of 50m at a constant speed of 25 m/s.
What is the centripetal acceleration
Centripetal acceleration is 12.5 m/s².
What is centripetal acceleration?Centripetal acceleration is a characteristic of an object's motion along a circular path. Centripetal acceleration applies to any item travelling in a circle with an acceleration vector pointing in the direction of the circle's center. In your daily existence, you must have encountered numerous instances of centripetal acceleration. A centripetal acceleration occurs when you drive in a circle, and a centripetal acceleration also occurs when a satellite orbits the earth. Centripetal refers to being in the center.
Given parameters:
Radius of the curve; r = 50 m.
Constant speed of the car; v =25 m/s.
We have to find centripetal acceleration = ?
We know that; centripetal acceleration of an object is given by:
a = v²/r
So, the centripetal acceleration of the car = v²/r = (25×25)/50 m/s²
= 12.5 m/s².
Hence, centripetal acceleration of the car is 12.5 m/s².
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why does the mass of a rock weigh down on earth but not in space if someone answers this i will give then 20 points.
Answer:
because there is no gravity in space
Explanation:
The weight of an object is a force. It is the force with which a body is attracted toward Earth or another celestial body. This means that when you are in space, away from Earth, objects do not weight anything since they do not feel gravitational attraction to the Earth.
if a pilot completes initial training as second-in-command (first officer) on a piece of equipment in march for an air carrier not using aqp, when would be the latest this pilot could complete recurrent training?
Recurrent should be whole earlier than the end of April of the subsequent yr.
Transition education is a schooling requirement for team contributors who've qualified and achieved the equal capability on any other plane inside the equal organization, but not of the equal type. The airline should contact his FAA office. Liaise with FAA workplaces and work with assigned inspectors.
This schooling is known as SEP and the price of SEP education is covered by way of the airline and the first month's revenue is likewise paid. The FAA lets in U.S. military pilots certified in military lessons and categories of plane to earn business and device pilot scores equivalent to civilian. Pilots who complete navy flight publications are eligible for FAA certification.
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consider the shock absorbers of a 1250 kg car. how much energy, in joules, must the shock absorbers dissipate in order to damp a bounce that initially has a speed of 0.85 m/s at the equilibrium position?
The car's kinetic energy, K = 384J, is equal to the energy needed to halt it. The law of kinetic energy tells us that: in the equilibrium position, the automobile is moving at its maximum speed according to periodic motion .
using formula: [tex]k=\frac{1}{2}mv^{2}[/tex].
How is energy defined?Electricity as described to by academics as the aptitude for effort. People have figured out how to transform energy from one form to another and then use it to accomplish tasks, making modern civilization possible.
What kinds of energy are there?Chemical, electrical, radiant, mechanical, thermal, and nuclear energy are the six main types of energy. Additional types including electrochemical, acoustic, electromagnetic, and others could be addressed in other studies.
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How does electron pair repulsion determine the molecular shape/molecule geometry?.
The molecular geometry of a molecule is the three-dimensional shape that it takes. The shape of a molecule is determined by the number and location of the electron pairs around the central atom. The electron pairs exert a force on each other called electron pair repulsion. This force determines the shape of the molecule.
The electron pairs around the central atom can be arranged in two ways: linear or angular. In a linear molecule, the electron pairs are arranged in a straight line. In an angular molecule, the electron pairs are arranged in a bent or angular shape.
The molecular geometry of a molecule is determined by the number of electron pairs around the central atom. The more electron pairs there are, the more the electron pairs will repel each other, and the more the molecule will bend or angle.
The molecular geometry of a molecule can be described using the terms linear, trigonal, tetrahedral, and so on. These terms describe the number of electron pairs around the central atom. For example, a linear molecule has two electron pairs around the central atom, and a trigonal molecule has three electron pairs around the central atom.
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Please please help 50pt
The __________ is a unit used to express the loudness of a sound.
decibel
phon
Hertz
Watt
The decibel is a unit used to express the loudness of a sound.
At t = 0 the end you are oscillating is at its maximum positive displacement and is instantaneously at rest. Write an equation for the displacement as a function of time at a point 2. 50 m from that end. Assume that no wave bounces back from the other end.
At t = 0 the end you are oscillating is at its maximum positive displacement and is instantaneously at rest. The displacement as a function of time at point 2. 50 m from that end.
Y= Asin{wt- (2.5m)k + pi/2 } Or Y= Asin{wt- (0.025mm)k + pi/2 }.
The oscillatory behavior, unexplainable in terms of linear theory, is characterized via a regular amplitude and frequency decided by using the nonlinear properties of the system. limit cycles are distinguishable from linear oscillations in that their amplitude of oscillation is impartial of preliminary conditions.
This kind of behavior is known as oscillation, a periodic movement among two points. Plucking a guitar string, swinging a pendulum, bouncing on a pogo stick—those are all examples of oscillating motion.
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if a 0.6 a light bulb powered by 120-v runs for a whole day, how many kilowatt-hours does it use in that day? note that 1.0 kwh
The kilowatt-hours the light bulb ran for that day is 1.73 kilowatt-hours per day.
Briefing :One Watt is the amount of work that is done in an electrical circuit when one ampere of current passes through a conductor with a one Volt electrical potential difference:
Power = Voltage * Current
1W = 1V * 1A
So from the question,
we have Current= 0.6A
Voltage= 120V
So to find out the Power,
we use Power = Voltage * Current
Power = 120*0.6
Power = 72W =[tex]\frac{72}{1000}[/tex] = 0.072 kW.
To find the kilowatt-hours in a day,
we consider the hours it ran which is 24 hours.
so,
0.072*24 =1.728 kWh =1.73 kilowatt-hours.
Therefore, the light bulb ran for 1.73 kilowatt-hours per day.
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How are the acceleration the net force and mass of an object related
Please write it in your own words
Mathematically speaking, acceleration, net force, and mass of an object are related as [tex]F = m \times a[/tex], where F stand for net force, m for mass, and a for acceleration.
What is the second law of Newton?The formula F = m × a, which asserts that the net force acting on an object is equal to the rate at which its momentum is changing, is derived from Newton's second law of motion.
The rate of change of momentum is proportional to acceleration when mass is assumed to be constant.
As vectors, which also have direction and magnitude, force and acceleration imply that if the net force is moving downhill, the acceleration will also be moving downwards. A scalar quantity is mass.
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suppose that a car's radiator contains 2.0kg of water. The water absorbs energy from the car engine. In the process, the water's temperature increases from 298K to 355K. How much energy did the water absorb?
The amount of heat energy the water absorbed, given that the water's temperature increases from 298 K to 355 K is 476976 J
How do I determine the heat absorbed?We know from calorimetry, that heat energy is given by:
Q = MCΔT
Where
Q is the heat energy absorbed or releasedM is the massC is specific heat capacityΔT is the temperature changeWith the above formula, we can determine the heat energy absorbed as follow:
Mass of water (M) = 2.0 KgInitial temperature (T₁) = 298 KFinal temperature (T₂) = 355 KTemperature change (ΔT) = 355 – 298 = 57 KSpecific heat capacity of water (C) = 4184 J/KgºC Heat absorbed (Q) =?Q = MCΔT
Q = 2 × 4184 × 57
Q = 476976 J
Thus, from the above calculation, we can conclude that the heat absorbed is 476976 J
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What is the frequency of an electromagnetic wave having a wavelength of 300 000 km.
Answer:
below
Explanation:
300 000 km = 300 000 000 m
c = wl * f
3 x 10^8 = 300 000 000 m * f
1 hz = f
in the electrical resistor analogy for heat transfer, what are the heat transfer equivalents of current and voltage?
The heat flow has an analogy in the flow of electricity.
what is ohm's law?
The strength of a direct current is inversely related to the resistance of the circuit and directly proportional to the potential difference.
According to Ohm's law, the electrical resistance (R) divided by the voltage potential (E1-E2) equals the current (I) flowing through a wire Re.
I = E₁-E/Re
Since the potential difference and electrical current are analogous to the temperature difference and heat flux in conduction, respectively, the rate of heat conduction through the wall can be expressed as
Q = T₁-T₂/ L/кA = T₁₋T/ R
Where the conductive thermal resistance to heat flow provided by the wall is represented by R = L/кA.
Similar to Ohm's law for electrical circuits, Fourier's law of heat conduction governs heat transfer.
Within the analogy:
The electrical current (I) and heat flow (Q) are relatedthe ratio of electrical resistance to thermal resistancevoltage to temperature (T) in electrical terms (V)the relationship between thermal and electrical conductivityHeat transfer to capacitanceTherefore, the heat flow has an analogy in the flow of electricity.
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a force of 10 newtons pushes a box a distance of 1.86 m. how much work did the force do? do not include units in the answer.
When a force of 10 newtons pushes a box, then the work done is 18.6 joules.
Work done :
Work done is defined as the amount of energy used by a force to move an object.
W = Fd Its unit is joule.Force :
The push and pull of an object.Its unit is newton.A force pushes a box = 10 Newtons
Distance covered = 1.86m
work done is calculated as :
W = F x d
where
W = work done
F = force applied
d = distance covered by a box
W = 10 x 1.86
W = 18.6 joule.
so, the work done is 18.6 j.
When a force of 10 newtons pushes a box, then the work done is 18.6 joules.
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the resistance of a wire is inversely proportional to its diameter, the smaller the wire the greater the resistance. select one: a. true b. false
Answer:
a.true
Explanation:
Inverse Relation means that the two Quantities behaves in opposite manner , so if one increase , the other will decrease
So Since the Resistance is inversely Proportional to its Diameter
Then the smaller the Wire ( smaller the diameter ) , then greater the Resistance.
So the Correct Answer is True
A cyclist rides a bike 18 miles in 3 hours. Assuming the speed is constant, how far can the cyclist ride in 1 hour?.
Answer:
6 MPH
Explanation:
If they ride 18 miles in 3 hours, and their speed is constant, you'd divide 18 by 3.
(18 miles) / (3 hours) = 6 miles per hour
The cyclist can ride 6 miles in 1 hour.
oil spill thickness can be measured by microwave reflection. a drone directs microwave beam from above. the two oil surfaces reflect microwave back to the drone. the refractive index is 1.5 for crude oil, and 1.34 for sea water. at one spot, the strongest reflected frequency (0th order interference) is 5 ghz. find the oil thickness in cm.
Oil spills at sea are frequently assessed based on their visual appearance to determine their characteristics, status, and slick thickness.
This paper reviews these appearances and the oil qualities that go along with them. Oil slicks that are thinner than a rainbow sheen (3 m) in thickness can be estimated by how they appear. There is a compelling physical reason for rainbow sheens. A certain oil look is not connected with larger (>3 m) oil slicks. It was once believed that the appearance of surface discharges from ships was associated with the discharge rate and vessel speed; however, this theory has since been disproved.
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A sledgehammer of mass m = 1.9 kg falls freely vertically downward from a height of h = 2.6 m at an initial speed of v = 11 m/s before striking a partially buried piling. After the blow the piling has moved d = 0.075 m deeper.How much kinetic energy, in joules, does the sledgehammer have just before striking the piling?
Answer:
Kinetic energy= 114.9J
Explanation:
Greetings !
Given values :-
mass= 1.9kg
height=2.6m
velocity= 11m/s
displacement (d)= 0.075m
Required value :-
Kinetic energy (KE)
Solution :-
Firstly, recall the Kinetic energy equation
[tex]ke = \frac{1}{2} mv {}^{2} [/tex]
substitute known variables into the equation
[tex]ke = \frac{1}{2} (1.9)(11) {}^{2} [/tex]
solve for Kinetic energy
[tex]ke = 114.9j[/tex]
Hope it helps!!!
What kind of molecular collisions will not lead to the formation of product in a reaction?.
Answer: ineffective collision. ( is one that does not result in product formation )
Explanation:
If you were to combine two carbon-12 atoms in a fusion process, what element would you get?.
If we combine two carbon-12 atoms in a fusion process, then we get the element Mg (magnesium) atomic no. of Mg = 12.
Fusion would be the joining of two smaller nuclei to form a larger as well as heavier nucleus, whereas fission is the breaking of a heavy nucleoplasm into lighter nuclei. Energy was absorbed or released as a result of fission as well as fusion.
A magnesium-24 nucleus (Z = 12, A = 24) has the same nucleons as two carbon-12 nuclei (Z = 6, A = 12). The reaction is therefore a fusion of two carbon-12 nuclei, and no other particles are produced:
126C+126C→2412Mg
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suppose a heat engine absorbs 1,683 j from the hot reservoir while rejecting 1,069 j to the cold reservoir. calculate the engine's efficiency.
To calculate the engines efficiency learn the hot and cold reservoir.
What is heat reservoir?
A heat reservoir is a body with a constant internal temperature whose mass is sufficiently large for heat to pass through it without changing the temperature.
What is cold reservoir?
The hot reservoir in the context of an automobile engine is the burning fuel, and the cold reservoir is the atmosphere into which the combustion products are exhausted.
Qₐ=1683J
Qr= 1069J
η= Qₐ-Qr/Qₐ
=1683-1069×100
=0.574×100
=57.4%
Therefore, the engines efficiency is 57.4%.
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now consider these conditions with a thin film of water on the surface. if the air is dry and the schmidt number sc is 0.6, what is the evaporative mass flux? is there net energy transfer to or from the water?
Evaporation is a simultaneous heat and mass transfer process. This phenomenon occurs on saturated liquid surfaces where vapor diffuses into unsaturated gases.
Evaporation is a heat transfer process in which the thermal energy of a liquid is released to the environment. The faster the liquid evaporates, the cooler it is. Besides the type of liquid, there are several other factors that affect the evaporation rate of liquids. I need to fix them for testing. The latent heat of a liquid can be used to transfer heat by absorbing the energy required to evaporate that liquid. The absorbed heat is released by condensing liquid on the outside of the enclosure. When a liquid evaporates in a sealed container, its weight remains the same. Like a tennis ball, gas particles are affected by gravity and therefore hit the bottom of the container more often than the top.
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