Answer:evaporation or de-
vaporation i think
What is the spring constant for a supermarket scale that stretches 0.01 m when a force of 4 n is applied? What is the displacement of a spring if it has a constant of 10 N/m and a force of 2.5 N is applied?
A lawyer most likely has __________. a.spatial intelligence b.practical intelligence c.analytical intelligence d.creative intelligence
The type of intelligence required by a profession depends on its job description. Lawyers most likes have analytical intelligence.
A renowned psychologist named Howard Gardner devised a theory of multiple intelligence. This means that nobody is really not intelligent because a person must posses one or more of these multiple intelligence.
A lawyer has a lot to do with analytic reasoning and comparison of evidence to determine their validity. This task requires a strong analytical mind hence a lawyer requires analytical intelligence.
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Identify the smallest measurement.
a) attometer
b) nanometer
c) centimeter
d) megameter
e) petameter
Answer:
Attometer
Explanation:
an attometer is the smallest unit of measurement.
Hope it helped!
Which best describes a radio wave?
A. an electromagnetic wave at very long wavelength (low
frequency)
B. a pressure wave at very long wavelength (low frequency)
C. a pressure wave at very short wavele
Option A. An electromagnetic wave at very long wavelength (low frequency) best describes a radio wave.
A radio wave is best described as an electromagnetic wave at a very long wavelength or low frequency. It is not a pressure wave. Radio waves are a type of electromagnetic radiation, which also includes other forms such as visible light, infrared, and X-rays. The term "wavelength" refers to the distance between two consecutive points in a wave, such as from one crest to the next. In the case of radio waves, the wavelength is quite long, ranging from several millimeters to hundreds of meters. This long wavelength allows radio waves to travel long distances and pass through obstacles such as buildings and trees. Radio waves are used for various purposes, including communication, broadcasting, and radar systems. For example, when you listen to the radio, the sound is encoded onto a carrier wave, which is a specific radio wave frequency. The receiver then extracts the sound from the carrier wave, allowing you to hear it. Similarly, radar systems use radio waves to detect and track objects like airplanes or weather patterns. To summarize, a radio wave is an electromagnetic wave at a very long wavelength or low frequency. It is not a pressure wave. Radio waves are used for communication, broadcasting, and radar systems due to their ability to travel long distances and pass through obstacles. They play a crucial role in everyday life, allowing us to enjoy wireless communication and entertainment.
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denisty of red copper is 8.8 gm/cm³ means
a. the mass of the volume unit of red copper equals 8.8gm.
b.the mass of the volume unit of red copper doesn't equal 8.8gm.
c. the mass of 10cm³ of red copper equals 8.8gm.
d. the mass of the volume unit of red copper equals 0.8gm
Answer:
the mass of the volume unit of red copper equals 8.8gm.
PLEASE MARK ME BRAINLIEST.Which object would sink in honey, which has a density of 1.4 g/cm³?
Object 1 (0.9 g/cm³)
Object 2 (1.2g /cm³)
Object 3 (0.2 g/cm³)
Object 4 (2.3 g/cm³)
Answer:
objective 4
Explanation:
i took the unit test review and the regular unit test
Object 4 with a density of 2.3 g/cm³ would sink in honey, which has a density of 1.4 g/cm³, therefore the correct option is option D.
What is density?It can be defined as the mass of any object or body per unit volume of the particular object or body. Generally, it is expressed as in gram per cm³ or kilogram per meter³.
The mathematical formula for density is given below
ρ =m /v
where ρ is the density of the substance
m is the mass of the substance
v is the volume of the substance
As per the law of floatation, the objects those have less density than the honey do not sink in the honey which has a density of 1.4 g/cm³.
As per the given options, object 1 has a density of 0.9 g/cm³ which is less than the density of honey 1.4 g/cm³, therefore it would not sink in the honey. similarly, objects 2 and object, 3 have a density that is less than the density of the honey, therefore they would float instead of sinking in the honey.
The only object 4 has a density of 2.3 g/cm³ which is more than the density of honey, therefore it would sink on the honey.
Hence, the correct answer is object 4.
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PLEASE HELP ME ASAP!!!
Answer:
90
Explanation:
The portion where gas turns to liquid
plz answer this very soon
Answer:
Im gonna say it is answer A:) Hope this helps!
Explanation:
several thin films are stacked together in each butterfly wing scale. how would these multiple layers of thin films affect the light reflected by the butterfly's wings?
More 400-nm light would be reflected, because some of the light transmitted through the first layer could be reflected by the second layer, light transmitted by the second layer could be reflected by the third, etc. is the correct answer. The correct option is option (2).
In the case of multiple thin films stacked together in a butterfly's wing scale, interference effects play a crucial role in determining the light that is reflected. As light passes through each thin film layer, some of it is transmitted through the film, and some is reflected. The transmitted light then interacts with the subsequent layers and can be further reflected or transmitted.
The multiple layers of thin films create a complex interference pattern where the reflected light waves from each layer either reinforce or cancel out each other. This interference pattern depends on the thickness and refractive indices of the films.
For certain wavelengths of light, constructive interference occurs, causing those wavelengths to be enhanced and reflected more strongly.
Therefore, more 400-nm light (or other specific colors) would be reflected due to the constructive interference of light waves from the multiple layers of thin films in the butterfly's wings. This phenomenon is responsible for the vibrant and iridescent colors seen in butterfly wings. The correct option is option (2).
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The complete question is:
Several thin films are stacked together in each butterfly wing scale. How would these multiple layers of thin films affect the light reflected by the butterfly's wings?
1) There would be no change, because all of the 400−nm light would be reflected by the first scale, and so the light is unaffected by the remaining scales.
2) More 400-nm light would be reflected, because some of the light transmitted through the first layer could be reflected by the second layer, light transmitted by the second layer could be reflected by the third, etc.
3) Less 400−nm light would be reflected because light reflected from the second layer can interfere destructively with light reflected by the first layer.
4) There would be no change because the interference effects would all occur at the first layer.
5) More 400-nm light would be reflected because the effective gap would be three times as wide.
6) Less 400−nm light would be reflected because the effective gap would be three times as wide.
A uniform surface charge density of 5nC/m 2is present in the region defined by x=0 and −2
Given: Uniform surface charge density,
σ = 5nC/m²
Charge per unit area is given by the formula,
`Q = σA`
where, `A` is the area of the charged surface and `Q` is the total charge on the surface.
Area of the charged surface is given by
`A = L * W`
where L is the length and W is the width of the surface.
The charged surface is defined in the region between
x=0 and x=-2,
Therefore,
Length `L = 2 m` and width `W` is infinite.
Hence,
`A = L * W = 2 * ∞ = ∞`
Total charge `Q` on the surface is,
`Q = σ * A = 5 * 10⁻⁹ * ∞ = ∞
the total charge on the surface is infinite because the width of the surface is infinite.
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a 5-gram particle mass carries a charge of 5 x 10-6 c and is moving in an electric field of 100 v/m. what is the acceleration of the particle? (note on units for electric field: v/m
The accelaration of the particle is given as 0.1 m/sec^2.
What is Electric Charge and Electric Field ?An electric field is a physical field that surrounds electrically charged particles and acts as an attractor or repellent to all other charged particles in the vicinity. Additionally, it refers to a system of charged particles' physical field.
When put in an electric and magnetic field, a subatomic particle's electric charge leads it to experience force. Protons and electrons are the most prevalent charge carriers for the positive and negative forms of electric charges, respectively.
Force experienced by the particle in the field is
F = Eq = 5 * 10^-6 * 100 = 5 * 10^-4 N
Now we know
F = ma
or, a = F/m = 5 * 10^-4/5 * 10^-3 = .1 m/sec^2
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You are playing tennis and return a volley. Identify a force pair.
During a tennis volley, the force pair involved is the action-reaction forces.
When playing tennis and returning a volley, the force pair involved is the action and reaction forces. In the process of hitting the ball, the tennis racket exerts a force on the ball, which is the action force.
The ball, in turn, exerts an equal and opposite force on the racket, which is the reaction force.Both the racket and the ball experience the force of impact during the volley.
The force applied by the racket causes the ball to move forward, while the equal and opposite force applied by the ball pushes the racket back.
These two forces are referred to as action-reaction forces or force pairs. A force pair refers to a pair of forces that are equal in magnitude but opposite in direction.
These forces always act on different objects and occur simultaneously. In this scenario, the action force was exerted by the tennis racket while the reaction force was exerted by the ball.
Therefore, during a tennis volley, the force pair involved is the action-reaction forces.
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which of the following characteristics distinguishes uranus from every other planet in our solar system? a. it has more than one moon b. its atmosphere is made of gases c. it rotates on an axis tilted almost 90 degrees to the circle of its orbit d. its orbit is significantly tilted relative to the orbits of the other planets e. its magnetic axis does not lie in the same direction as its rotation axis
Its magnetic axis does not lie in the same direction as its rotation axis. Uranus is the seventh planet from the Sun and the third largest planet in our solar system. Option e is Correct.
It is unique in several ways that distinguish it from every other planet in our solar system. One of these characteristics is that its magnetic axis is tilted almost 90 degrees to the plane of its orbit. The magnetic axis of a planet is the direction in which its magnetic field is pointed. The magnetic axis of a planet is usually aligned with its rotation axis, but this is not the case for Uranus. In fact, Uranus's magnetic axis is tilted by about 59 degrees relative to its orbit, which is much more than any other planet in our solar system.
In contrast, the other characteristics listed in the options are not unique to Uranus. Every planet in our solar system has its own set of moons, and the composition of their atmospheres varies. The orbits of the planets are also tilted with respect to the Sun, and some of them have magnetic fields that are tilted with respect to their rotation axes. However, the tilt of Uranus's magnetic axis is the most extreme of any planet in our solar system.
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How fast would a 20 kg dog have to run, to reach a momentum of 120 kg x m/s? Include unit in your answer. Worth 40 points!
Answer:
6 m/s
Explanation:
momentum= mass times velocity
120 = 20v
v = 120/20
Answer:
7
Explanation:
7
A porpoise sends out an ultrasonic burst and hears the echo off his favorite food in 0.13 seconds. How far away is the food source? Assume that sound travels at 1,530 m/sec in water.
If a porpoise sends out an ultrasonic burst and hears the echo of his favorite food in 0.13 seconds, then the food source would be 99.45 meters.
What is a sound wave?It is a type of mechanical wave composed of the disturbance caused by the movements of the energy. A sound wave travels through compression and rarefaction in an elastic medium such as air.
As given in the problem a porpoise sends out an ultrasonic burst and hears the echo of his favorite food in 0.13 seconds. How far away is the food source,
The distance of the food source = 0.13×1,530 / 2
=198.9 / 2
=99.45 meters
Thus, the distance of the food source would be 99.45 meters.
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what is the closest you can be to speaker b and be at a point of perfectly destructive interference?
The closest you can be to speaker B and be at a point of perfectly destructive interference- 1.008m.
The wavelength of sound emitted by speakers
= velocity / frequency
= 344 / 172
= 2 m
For destructive interference , path difference is equal to odd multiple of half the wavelength .
path difference = 2 / 2 = 1 m
d₂ - d₁ = 1 m
d₂ = d₁ + 1 m
d₂ = .008 m + 1
d₂ = 1.008 m
So, the closest you can be to speaker B and be at a point of perfectly destructive interference- 1.008m.
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The complete question is:
Two loudspeakers, A and B, are driven by the same amplifier and emit sinusoidal waves in phase. The frequency of the waves emitted by each speaker is 172 HzHz. You are 8.00 mm from speaker A. Take the speed of sound in air to be 344 m/sm/s. What is the closest you can be to speaker B and be at a point of perfectly destructive interference?
Matching vocabulary terms
Answer:
.
Explanation:
26 = Terminal Velocity
27 = Force
34 = Momentum
33 = Laws of Conversation of Momentum (I think)
4 Suggest four ways in which participating in physical activities can build healthy relationship? 5.Show in two ways the influebces of values on the choices of goals you set as your life goal❤
Answer:
Increases levels of well-being neurotransmittersImproves fitnessImproves mental healthReduces the risk of developing diseasesExplanation:
Performing physical activities helps to build a healthy relationship with yourself, in the sense that physical activity promotes health at all levels. Health is a set of physical, mental and social well-being, so physical activity reaches all these levels and increases the quality of life for a person as a whole.
There are several types of physical activities that can be performed and you can choose the one that best fits your preferences and routine. A walk for example can be done in any safe place and at any time and it already helps in improving physical conditioning, in receiving serotonin and endorphins, in reducing blood pressure and protecting the heart and in improving mental health.
So the ideal is for each person to set their own goals in relation to their health and seek to achieve them, either to have a better quality of life, to socialize more with people, to prevent diseases, etc.
Physical exercise helps build relationship by:
Reducing one's stress and good level of mental health. One can be able handle anxiety and less mental health problem.What are Exercise?This is known to be any physical activities such as walking, running, etc., that is often done so as to keep the body fit.
It is very important when as it helps one to maintain a good balance of mental health. As a person moves their body, there is the release of endorphins that functions to make us feel good and helps handle the effects of stress and anxiety. The more a person exercise, the less mental health cases and more happier relationships.
Note that Values are the drive force of your actions and they push or motivate as you set your life goals. They help to eliminate any obstacle in term of foreign ideas that are against one's value and it keeps one's focus on the goal.
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the interpretation of the wavefunction that describes them as probability amplitudes was developed by:
The interpretation of the wavefunction that describes them as probability amplitudes was developed by Max Born.
Max Born was one of the renowned physicists known for his splendid work in the field of quantum mechanics.
When the scientists of his time were using the three-dimensional standing wave to describe about the wavelength, he was the person who used probably amplitude to describe a wavefunction.
To describe a wavelength using the probably amplitude, Max Born used and developed the Schrodinger's view of the electron.
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What can we say when one force
is greater than another force?
A. There is no net force.
B. There is no change in motion.
C. There is a change in motion.
D. The forces are in equilibrium.
When one force is greater than another force, we can say that there is a change in motion. The correct answer is option C: "There is a change in motion."
According to Newton's second law of motion, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. When one force is greater than another force, the net force acting on the object is not zero. If the net force acting on an object is not zero, it will cause the object to accelerate in the direction of the larger force. This acceleration leads to a change in motion. The object may speed up, slow down, change direction, or a combination of these.
Option A, "There is no net force," is incorrect because if one force is greater than another, there is a net force acting on the object.
Option B, "There is no change in motion," is incorrect because, as explained above, a greater force leads to a change in motion.
Option D, "The forces are in equilibrium," is incorrect because if one force is greater than another, the forces are not balanced, and the object is not in equilibrium.
Therefore, the correct statement is that there is a change in motion when one force is greater than another force.
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Running water has materials such as dirt, sand, and dead plants and animals in it. When this water ends up in a lake, the materials it was carrying fall to the bottom of the lake and form layers. A layer is thicker when more water enters the lake. For example, thick layers form during times of heavy rain, and thin layers form during times of little rain. Sometimes lakes dry up. The bottoms of dry lakes can change into rock. This rock will still have layers. A geologist studied one of these rocks made from the bottom of a lake. Which rock layer formed during the wettest season? Layer
Answer:
The outside layer is the wettest.
Explanation:
differences differences between gravity and acceleration due to gravity
Look at this table. Accleration of gravity means gravitational constant.
If Earth's circumference at the
equator is 40,070 km, what is the
speed of the stationary satellite
GOES above the equator in km/
hour? (Use the formula: Speed =
Distance/Time)
The stationary satellite crosses the equator at a speed of 1180 kilometres per hour.
How does speed at the equator get calculated?At the equator, where the Earth's circumference is 40,070 kilometres and the day lasts for 24 hours, the speed is 1670 kilometres per hour (1037 miles per hour). This slows down by the latitude's cosine, so at a latitude of 45 degrees, cos(45) =. 707, and the speed is. 707 x 1670 = 1180 kilometres per hour.
How fast would a student travelling at the equator while seated on Earth's surface?
The daily motion felt on our earth is brought on by this spinning. You would move at almost 1,000 miles per hour (1,600 km/hr) if you were standing on the equator of the Earth, but your pace would slow down if you started moving in the direction of the North or South Poles.
A latitude of 45 degrees, cos(45) =. 707, and the speed is. 707 x 1670 = 1180 kilometres per hour.
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V1=2 L
T1= ? degrees Kelvin
V2= 4 L
T2= 300 degrees Kelvin
Explanation:
using Charles law
V1/T1 = V2/T2
2/ T1 = 4/300
cross multiply
4 X T1 = 2 X 300
T1 = 600/4 = 150
T1 = 150°k
When a person sees something, what carries the message from the eyes to the brain?
Answer:
nerves
Explanation:
The optic nerve is the nerve in each eye that carries the signal from your eye to your brain.
When you put your hand above a pan filled with boiling water, does your hand warm up because of convection or conduction? If you touch the pan, does your hand warm up because of convection or conduction? Based on your answers, which type of heat transfer moves heat more easily and efficiently?
Answer:
first one is - conduction
second one is - convection
I think conduction moves more easily
What is the type of radioactive decay represented by the equation above? A. Gamma B. Fusion C. Alpha D. Fission 40. Alberta uses clean coal technology. This means that the coal has a lower i content than coal in other parts of Canada, which results in reduced ii The statement above is completed correctly by the information in row olla sdf to ridW Row i A. sulfur greenhouse gas emissions acid deposition sulfur carbon greenhouse gas emissions acid deposition carbon B. C. D. 29. Which of the following graphs depicts the relationship between gravitational field strength and the mass of the International Space Station orbiting Earth? A. Field Strength (N/kg) C. Field Strength (N/kg) Mass (kg) Mass (kg) B. Field Strength (N/kg) D. Field Strength (N/kg) Mass (kg) CADLC 30. Which of the following sequences of colours represents the changing temperatu from the surface to the atmosphere of the sun? a A. Red, orange, yellow, blue B. Yellow, red, orange, blue C. Orange, yellow, blue, red D. Blue, yellow, orange, red 1. When a star undergoes a blue shift, the star is A. moving away from an observer B. moving towards an observer C. moving parallel to an observer D. stationary Mass (kg)
The sun is Yellow, red, orange, and blue. Therefore option B is correct.
The star is moving toward an observer. Therefore option B is correct.
39. The type of radioactive decay represented by the equation provided Gamma. Therefore option A is correct.
40. The statement is completed correctly by the information which states that the coal in Alberta has a lower carbon content than coal in other parts of Canada, resulting in reduced greenhouse gas emissions.
29. graph B depicts the relationship between gravitational field strength and the mass of the International Space Station orbiting Earth.
30. The correct sequence of colors representing the changing temperature from the surface to the atmosphere of the sun is Yellow, red, orange, and blue. Therefore option B is correct.
1. When a star undergoes a blue shift, it indicates that the star is moving toward an observer. Therefore option B is correct.
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PLEASE HELP!!
Cheetahs can run 550 m with an average speed of 100 km/h. A) How long would it take to do this at that speed? B) If a certain cheetah has an average speed of only 85 km/h, what distance would it cover in the same time interval from part (A)?
Answer:A) 19.8 seconds
B) 467.5 metres
Explanation: 100km/hr = 27.78m/s
So, it covers 27.78 metres in one second
Take the time it would cover 550m as x
Therefore 27.78m = 1second
550m = x
Cross multiplying
27.78x = 550m
Divide both sides by the coefficient of x
x = 550÷27.78
x = 19.8seconds
B) distance = speed × time
Speed = 85km/hr = 23.61m/s
Time = 19.8seconds
Therefore,
Distance = 23.61 × 19.8
Distance = 467.5m
45. When you park on a level road next to a curb: A. Your wheels must be within 18 inches of the curb B. Your front wheels must be turned towards the side of the road C. You do not have to set your parking brake
Answer:
A
Explanation:
You must be within 18 inches.
A 2.90-kg block is released from rest and allowed to slide down a frictionless surface and into a spring. The far end of the spring is attached to a wall, as shown. The initial height of the block is 0.500 m above the lowest part of the slide and the spring constant is 443 N/m. A. What is the maximum compression of the spring?B. The spring sends the block back to the left. How high does the block rise?
Part (a)
The potential energy of the block due to its height can be given as,
\(U=\text{mgh}\)The potential energy due to presence of spring can be expressed as,
\(U=\frac{1}{2}kx^2\)Equating both the values,
\(\begin{gathered} \text{mgh}=\frac{1}{2}kx^2 \\ x^2=\frac{2mgh}{k} \\ x=\sqrt[]{\frac{2mgh}{k}} \end{gathered}\)Substitute the known values,
\(\begin{gathered} x=\sqrt[]{\frac{2(2.90kg)(9.8m/s^2)(0.500\text{ m)}}{(443\text{ N/m)}}(\frac{1\text{ N}}{1kgm/s^2})} \\ \approx0.253\text{ m} \end{gathered}\)Thus, the maximum compression of the spring is 0.253 m.
Part (b)
Since the slide is frictionless, therefore no energy loss happened during the sliding of block. Therefore, the block will rise up to the same initial height which is 0.500 m.