Answer:
Explanation:
MASS of a body indicates the quantity or amount of matter contained in it.S.I, unit of mass is kg
A student's tonsils become infected and she has them removed. What condition does she need to be careful of in the future?
(2 points)
Answer:
she will have a reduced ability to fight airborne pathogen.
Explanation:
This is because the tonsils have an ability to fight airborne diseases as well as protect the body from pathogens
A wave transfers _____ from the source outward in the direction of wave motion.
a. matter
b. energy
c. particles
d. the medium
Answer
b. energy
Explanation:
wave is a disturbance that carries energy from one particle to another particle.
Niels Bohr theorized that as an electron's energy increased, its orbit:
A. changed direction.
B. remained the same.
c. moved away from the atom's nucleus.
D. moved closer to the atom's nucleus.
SUBMIT
Answer:
Moved away from the nucleus
Stars which never disappear below the horizon are called__stars. A. Polaris B. visible C. constellation D. circumpolar
Answer:
D. circumpolar
Explanation:
A circumpolar star is a star, as viewed from a given latitude on Earth, that never sets below the horizon due to its apparent proximity to one of the celestial poles.
-Wikipedia
The table shows data for the planet Uranus.
A 2 column table with 4 rows. The first column is labeled Quantity with entries, Escape velocity in kilometers per second, Gravitational acceleration in meters per second squared, Orbital velocity in kilometers per second, Length of day in hours. The second column is labeled Value with entries, 21.3, 8.7, 6.8, 17.2.
To the nearest whole number, how much would a 25.0 kg rock weigh on Uranus?
170 N | 218 N | 430 N | 532 N
Answer:
218 N
Explanation:
The weight of the object on Uranus W = mg' where m = mass of the object = 25.0 kg and g' = gravitational acceleration.
Since in the table, we are given different values, we look for the value of the gravitational acceleration because, that is the only variable there that can help us calculate the weight of the object.
From the table, the gravitational acceleration g' = 8.7 m/s².
So, the weight of the object W = mg'
= 25.0 kg × 8.7 m/s²
= 217.5 N
≅ 218 N
Answer:
B. 218 N
Explanation:
Edge 2020
does increasing the frquency of a wave also increse its wavelength?if not,how are these quantities related
Answer:
No.
Explanation:
No, increasing the frequency of a wave will not increase it's wavelength. Rather it will decrease the wavelength because frequency and wavelength are inversely related.
According to Formula:
v = f(lemda)
If the speed is kept constant to find the relationship between f and wavelength.
=> f is inversely propotional to wavelength.
Hope this helps!
Have a great day!
Sort the resources into the correct category: renewable or nonrenewable.
Answer:
forests
renewable resources
nonrenewable resources
water
iron
oll
wind
silver
Renewable resources- Water
Forests
Wind
Non-renewable resources-
Oil
Iron
Silver
Lets consider few resources,
forests
water
iron
oll
wind
Silver
Renewable resources-
Water
Forests
Wind
Non-renewable resources-
Oil
Iron
Silver
What are renewable resources ?
"A renewable resource, also known as a flow resource, is a natural resource which will replenish to replace the portion depleted by usage and consumption, either through natural reproduction or other recurring processes in a finite amount of time in a human time."
What are non renewable resources?
"A non-renewable resource is a natural resource that cannot be readily replaced by natural means at a pace quick enough to keep up with consumption. "An example is carbon-based fossil fuels. The original organic matter, with the aid of heat and pressure, becomes a fuel such as oil or gas.
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A new ski area has opened that emphasizes the extreme nature of the skiing possible on its slopes. Suppose an ad intones "Free-fall skydiving is the greatest rush you can experience . . . but we’ll take you as close as you can get on land. When you tip your skis down the slope of our steepest runs, you can accelerate at up to 75% of the acceleration you’d experience in free fall." What angle slope could give such an acceleration?
Answer:
48.6°
Explanation:
The forward force, F equals the component of the weight along the slope.
So mgsinθ = ma where a = acceleration and θ = angle between the slope and the horizontal.
So a = gsinθ
Since we are given that a = 75%g = 0.75g,
0.75g = gsinθ
sinθ = 0.75
θ = sin⁻¹(0.75)
= 48.6°
ten quantities that are pure numbers
Answer:
Explanation:
1, i, π, e, and φ
dozen, gross, googol, and Avogadro's number etc, are pure numbers
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plz mark it as brainliest!
What type of bond is most likely to form between atoms of the same element when the element is a metal?
Answer:Covalent bond
Explanation:
I NEED HELP PLEASE, THANKS :) What does it mean when white light is diffracted and at a particular location the color seen is blue?
Answer:
This is because white light consists of 7 colours with different angles o deviation or retraction.
Explanation:
When a narrow beam of light is refracted by a prism the light spreads into a band of colours (called the spectrum of light )
But in this case if a blue colour is observed it is due to the angle of refraction ,for instance red is refracted the least and hence is seen
Answer:
When while light is diffracted and at a particular location blue color is seen, this means that blue color is reflected while all other colors will be absorbed. When the blue color is seen denotes the shortest wavelength being reflected and all other being absorbed at the specified location.
What are the four main reasons as to why, despite having an abundance of minerals and natural resources, Pakistan has been unable to realize its potential and has not been able to succeed like other countries having similar resources?
please answer me I am so much worry I will mark you as brainy and follow you also
Answer:
GDP growth rate is low
Political instability
Lack of technical skills due to low literacy rate
Pressure from neighboring countries
Explanation:
Gross Domestic Product growth rate of Pakistan is much lower than many developed countries. The GDP growth rate for Pakistan is nearly 5% which is not even stable and it variate from plans. Due to which Pakistan is unable to use its available resources to the fullest. Also one of major issue is political instability in the country. After the loss of great leader Quaid e Azam Pakistan has not faced any loyal leader till date.
Noise pollution, health issues, lack of provision of basic necessities to many are few other factors which give rise to poor law and order situation in the country. Lack of availability of heavy machinery and poor infrastructure has contributed to the country decline. There is abundance of natural resources in the country but due to these issues the country is unable to deal with the challenges.
The pressures from neighboring countries have made the situation even worst. The heavy loan burden is restricting the country from development. The covenants imposed by the lenders have limited the country's ability to use its natural resources and become stable.
What is simple machine
Answer:
A simple machine is a mechanical device that changes direction or magnitude of a force.
Explanation:
the machines which make our work easier faster and more convenient and simple in structure are called simple machines. for example Pulley crowbar nail cutter bottle opener and screw
hope it helps
I NEED HELP PLEASE, THANKS!
Identify each of the following as a conductors or insulators. Explain.
-cloth
-dry wood
-tap water
-glass
Answer:
Cloth:
It is an insulator since it can't let electricity pass through
Dry Wood:
It is an insulator and can't conduct electricity.
Tap Water:
It is a good conductor as it contains dissolved salts.
Glass:
It is an insulator since it can't let electricity pass through.
Garret, Melody and Tony start their school day with brand new pencils. By the end of the day, they want to see who used his or her pencil the most. They decide that the shortest pencil will be the most used, and the longest pencil would be the least used. How should the students determine which pencil was used the most?
THEY SHOULD COMPARE THE LENGTH OF PENCILS WITH EACH OTHER .
HOPE IT HELPS.PLEASE MARK AS BRAINLIEST AND FOLLOW ME ......I NEED HELP PLEASE, THANKS! :) Why does the pattern of colors repeat in a thin soap film?
Answer:
When white light shines on the bubble, it acts as a prism. While some of the white light bounces back off, some of them pass through the prism forming fringes of colors. But then, they too bounce off the inner part of the film. So one set of light rays shine into a soap bubble, but two sets of rays come back out again. When they emerge, the waves that bounce off the inner film have traveled a tiny bit further than the waves that bounced off the outer film. So, we have two sets of light waves. After that, the waves starts merging (Just like the ripples in the pond) . Some add together while some cancel out. That is why we see the pattern of colors repeating in the thin film soap.
Newton’s first law of motion was a giant leap forward in scientific thought during Newton’s time. Even today, the idea is sometimes difficult at first for people to understand. Which statement is the best example of an object and motion that would make it hard for people to believe Newton’s first law? A rolling ball eventually slows down and comes to a stop. A wagon must be pushed before it begins to move. The heavier the load in a cart, the harder the cart is to turn. A box does not move when pushed equally from opposite sides.
Answer: A rolling ball eventually slows down and comes to a stop.
Explanation: Right on Edge2020, not C or B or D.
Answer:
A
Explanation:
Person above me might be right
A softball player moving 3.89 m/s
starts a slide, decelerating at -1.44 m/s2
for 4.80 m. How much time does the
slide take? (She does not come to a stop.)
Answer:
0.119 s is the correct answer to this question.
Explanation:
As mentioned in the question
U=3.89\ m/s
a=-1.44\ m/s^2
S=4.8\ m
Consider the final speed of the softball covering the distance of 4.8m is v
Now using the equation
[tex]v^2=U^2+2aS[/tex]
Putting the value of U, A, S in the previous equation we get
[tex]V^2=3.89^2-2\times 1.44\times 4.8\\V=3.7\ m/s\\[/tex]
Now again using the equation
v=U+at
where U=intial velocity, t= time
Substituting the value of v, U, a
[tex]3.7=3.89-1.44\times t\\t=0.119\ s\\[/tex]
Hence the slide time is 0.119 s
Desde lo alto de un acantilado de 140 m, se lanza verticalmente un objeto hacia abajo con velocidad de 3m/s. Entonces la magnitud del desplazamiento que ejecuta en t = 3s es: (use g = 10 m/s2)
Answer:
54
Explanation:
d = vo*t + ½*g*t²
d = 3*3 + ½*10*3²
d = 9 + 45
d = 54 m
entonces el objeto tiene 54 m de desplazamiento
What are the units of impulse
Answer:
Newton Second
Explanation:
The SI unit of impulse in Newton Second (N.s)
(06.04 MC)
Which of the following best describes a human egg cell? (3 points)
Answer: A haploid cell formed in the female uterus
Which form of government shares goods and services equally, and the political power is disturbing among the people?
Answer:
Socialist
Explanation:
Answer: socialist
Explanation: A socialist form of government is where the goods and services are equally shared, and the political power is distributed among the people.
Un globo es inflado hasta obtener 1.5 atm, con un volumen de 500 cm³ a 273 K. Luego, es colocado en el frezzer ¿Cuál será su temperatura, con 1.2 atm y 300 cm³?
Respuesta: T2 = 131.04K
Explicación: Dado lo siguiente:
Presión, P1 = 1.5 atm = 1.5 × 760 = 1140 mmHg
Presión, P2 = 1.2 atm = 1.2 × 760 = 912 mmHg
Volumen, V1 = 500cm3 Volumen, V2 = 300cm3
Temperatura, T1 = 273K Temperatura, T2 =?
Usando la fórmula de gas combinada:
P1V1 / T1 = P2V2 / T2
Ingresando nuestros valores:
(1140 × 500) / 273 = (912 × 300) / T2
T2 × (1140 × 500) = 912 × 300 × 273
T2 = 74692800/570000 T2 = 131.04K
light waves are bent more easily than sound waves true or false
Light waves are bent more easily than sound waves is refereed to as a false statement.
What is a Wave?This is referred to as the propagation of disturbances from one place to another in a regular and organized way. There is always the transfer of energy during this process however the matter doesn't move and there are different types such as sound and light waves.
Sound waves is a type of wave which has a lower wavelength and are slowed more which is therefore the reason why it is bent more easily than light waves who has a higher wavelength.
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Lien uses a spring scale to pull a block toward the right across the lab table. The scale reads 8 N. Which force should Lien conclude is also 8 N?
Answer:
Frictional forceExplanation:
For the block placed on the table, there are several force acting on the body along the horizontal and vertical axis. All this forces tends to keep the body in a state of equilibrium.The forces acting along the horizontal are the moving force (Fm) and the frictional force (Ff).
Frictional force are forces that acts opposite to the force that causes the body to move (moving force).
If Lien uses a spring scale to pull a block toward the right across the lab table and the scale reads 8 N, this means that the force that causes the body to move is the 8N force (moving force).
Taking the sum of force along the horizontal;
[tex]\sum fx = ma_x[/tex]
Since the body is static, max = 0
[tex]\sum fx = 0\\fm+(-Ff)= 0[/tex]
Note that the frictional force acts is the force of opposition acting in the negative x direction.
[tex]fm = 0+Ff\\fm = Ff[/tex]
Since Fm = 8N, Ff will also be equal to 8N.
Based on the above proof, Lien can also conclude that 8 N is a frictional force
What are the intercepts of the graphed function?
Answer:
the intercepts of a graph are point at which the graph crosses the axes
Which law is all forces exist in an action recreation pairs
Explanation:
Newton's Third Law of Motion
Newton's Third Law of Motion explains that forces always come in action-reaction pairs. The Third Law states that for every action force, there is an equal and opposite reaction force.
what is escape velocity
Answer:
Escape velocity is defined as the velocity which will take a body to go the infinite distance away above the surface of the earth when projected upwards.
Hope this helps...
Good luck on your assignment....
i really need help! please hurry and answer this. i'll give you 5 stars and everything just please answer this as fast as you can.
Answer:
Triple, double, single
Explanation:
They are all the same type of elemental bond, therefore the more of the same bond, you can only assume it would get stronger.
In an experiment, a student placed a sheet of paper on a bar magnet, and iron filings were sprinkled on the
sheet of paper. Thereafter, the paper was gently tapped. The diagram below shows the final result of the experiment
Question 1
experiment
a Give the aim of the experiment. (2 marks)
o What conclusion could be drawn from the result
of such an experiment? (2 marks)
c. What could have happened if the iron filings had been replaced with grit? (2 marks)
Answer:
a. Aim of the experiment: To identify the magnetic fields around the bar magnet.
b. After tapping the paper, the iron filings align themselves according to the lines of the magnetic force of bar magnet. The magnetic field is more concentrated at the ends of poles as most of the iron fillings are attracted at the poles and the pattern form by iron filling shows the magnetic field of the bar magnet.
c. If iron filings will be replaced with grit, there will be no magnetic movement around bar magnet as grit is not a metal and do not have any magnetic properties.
Explanation:
a) The experiment with paper, iron sprinkles and bar magnet was performed to show the presence of the magnetic field around the magnet.
o) In the experiment, when we placed two opposite poles and sprinkled the iron over, the iron filings were aligned between forces applied by the opposite poles that are they attract each other. When the same poles were placed facing each other, the iron sprinkles were arranged away from each other. This shows that opposite poles attract each other while the same poles repel each other.
c) If iron filings were replaced with the grit, the magnetic field will be stronger.
