I think the answer is Resistance. If the link i posted int he comment is right.
Waves that collide with a barrier will reflect at an angle equal to the angle of incidence.
True
False
Answer:
True
Explanation:
This is a fundamental concept in physics dealing with the nature of waves where when the waves collide with a barrier such as wall or some form of surface will reflect at an angle equal to the angle of incidence.
How many electrons do carbon and oxygen share
Answer:
1
Explanation:
To satisfy the Octet Rule, Carbon needs 4 more valence electrons. Since each Oxygen atom has 3 lone pairs of electrons, they can each share 1 pair of electrons with Carbon; as a result, filling Carbon's outer valence shell
Answer:
The Answer Is 4!!
Explanation:
Hope This Helps:)))
Which method is used to separate parts of a solution when the entire solution can pass through a filter?
Answer:
Straining method
Explanation:
Straining method is the method that can be used to separate parts of a liquid mixture when the entire mixture can pass through a filter.
Which term describes an observable fact, event, or circumstance?
A. Experiment
B. Theory
C. Hypothesis
D. Phenomenon
Answer:
Phenomenon
Explanation:
phe·nom·e·non
/fəˈnäməˌnän/
noun
1.
a fact or situation that is observed to exist or happen, especially one whose cause or explanation is in question:
"glaciers are unique and interesting natural phenomena"
synonyms
occurrence, event, happening, fact, situation, etc.
2.
a remarkable person, thing, or event:
"the band was a pop phenomenon just for their sales figures alone"
synonyms
marvel, sensation, wonder, prodigy, miracle, etc.
A car has a mass of 8000 kg and a kinetic energy of 24,000 J. What is its
speed?
A. 1.7 m/s
B. 2.4 m/s
C. 6 m/s
D. 3 m/s
Answer:
2.4
Explanation:
48,000/8000=6
square root of 6 = 2.44948974278
so 2.4
AnswerB.2.4m/s
Explanations;
24000=1/2×8000×v^2
24000/4000=v^2
√ 6.=v
v=2.4
Engineers are trying to improve a race car. Their goal is to increase the acceleration of the car using the same engine. Which change shows the best application of Newton’s laws of motion to achieve this goal? increasing the inertia of the car decreasing the reaction force increasing the action force decreasing the mass of the car Mark this and return
Answer:
d. decreasing the mass of the car
Explanation:
Engineers are trying to improve race cars. Their goal is to increase the acceleration of the car using the same engine, it can be achieved by decreasing the mass of the car, therefore the correct answer is option C.
What is Newton's second law?Newton's Second Law states that The resultant force acting on an object is proportional to the rate of change of momentum.
As given in the problem Engineers are trying to improve a race car. Their goal is to increase the acceleration of the car using the same engine,
The acceleration of the car can be increased by decreasing the mass of the car assuming the engine of the car is producing the same amount of force.
Thus, the acceleration can be increased by decreasing the mass of the car, therefore the correct answer is option C.
To learn more about Newton's second law, here refer to the link given below ;
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Why is this equation wrong?
Answer:
It is not possible to find the square root in such a way
Explanation:
The general kinematic equations of motion for vertical displacement can also be simplified significantly. Write the simplified
equation for y in this case. Explain how you have been able to simplify it from this general displacement equation:
Answer:
Δy = v₀t + (1/2)gt²
where g = 9.81 m/s if the body is moving downwards and g = -9.81 m/s if the body is moving upwards
Explanation:
The general kinematic equation for horizontal displacement is gives as:
Δx = v₀t + (1/2)at²
Where
Δx = change in the x direction
v₀ = initial velocity
t = time
a = acceleration
If the body is vertically instead of horizontally, Δx is changed to Δy
Δy = v₀t + (1/2)at²
For a vertical moving body, the acceleration it experiences is the gravitational accerelation of the earth 'g'
So the equation becomes:
Δy = v₀t + (1/2)gt²
where g = 9.81 m/s if the body is moving downwards and g = -9.81 m/s if the body is moving upwards
The general kinematic equations of motion for vertical displacement is written as [tex]h = v_0_yt - \frac{1}{2} gt^2[/tex].
The general kinematic equations of motion for vertical displacement is written as follows;
[tex]h = v_0_yt - \frac{1}{2} gt^2[/tex]
where;
h is the vertical displacement of the object[tex]v_0_y[/tex] is the initial vertical velocity of the objectg is the acceleration due to gravityt is the time of motion of the objectThus, the general kinematic equations of motion for vertical displacement is written as [tex]h = v_0_yt - \frac{1}{2} gt^2[/tex].
Learn more about vertical displacement here: https://brainly.com/question/2289543
What happens to the gravitational force between two objects as the distance between them decreases?
Answer:
gravitational force increases
Explanation:
Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are brought closer to each other, the force of gravitational attraction between them also increases.
_____ is considered a significant digit when it is to the left or the right of the decimal point and it follows a non-zero digit, or when it is betwee two digits.
Answer:
Zero (0)
Explanation:
Zero is only counted significant in some cases, and some of those are listed in the question.
For eg, 0.0003 (here 0 is insignificant), however, 3000.003 (here all 0's are significant)
Guy received his home loan for $200,000. Determine which of the following was the mortgage company’s most important reason for giving him his loan. budget plan of how the payments will be made the total value of current assets and all income the referral from other clients of the company the neighborhood in which the home is located NEXT QUESTION
Answer: The answer is "the total value of current assets and all income"
Explanation:
Mary is allergic to cats. Mary's friend, Sue, has a roommate who has cats. Whenever Mary visits Sue, Mary sneezes even before she enters Sue's house. Mary's sneezing persists even after Sue's roommate and his cats have moved out. After a while, Mary stops sneezing before she enters Sue's house. The point at which Mary's sneezing stopped is an example of _____.
Answer: Extinction
Explanation: Extinction simply means cessation. A condition whereby an action or behavior exhibited by an individual or organism eventually stops. In psychological parlance, extinction is usually attributed to the discontinuance of a certain behavior usually due to non - reinforcement or eventual absence of the conditioned stimulus.
In the scenario above, the point at which Mary stopped sneezing is called extinction which is due to the removal of the cat which is the cause of Mary's sneezing behavior.
the maximum displacement of a particle, within a wave, above or below its equilibrium position, is called__________
Answer:
the amplitude.
Explanation:
Becky has a younger sister. If the sister was half Becky's age when Becky was 6, and Becky is now 70, how old is Becky's sister?
Answer:
67
Explanation:
Answer:
35
Explanation:
It's a trick question!
Because the younger sister was half the age of Becky when she was 6. She also has to be half the age of Becky today.
So, 70 ÷ 2 = 35
Hope this helps you out! : )
hydrogen bonding is a strong attractive force. T OR F
Answer:
F
Hope it helps you!
Which reaction takes place in a nuclear fission reactor?
Answer:
Last option in the list of possible answers, with U235 and n (neutron) in the left (originators) of the reaction diagram.
Explanation:
Uranium 235 (which is a fissile isotope of uranium) plus slow neutrons is what produce the chain reaction that feeds nuclear reactors.
Answer:
D
Explanation:
Did the test
The degree to which a liquid resists flowing is called _____.
Answer:
Viscosity is a measure of how much a liquid resists flowing freely.
Answer:
velosity is the anser
Explanation:
sorry for the spelling
Which of the following is a personal decision that involves science A)It is immoral to cheat on your homework? B)what movie will I like the most this weekend? C)will an air purifier reduce the dust in my house? D)is $100 a reasonable price for a cell phone?
Answer:
C because air purifier is very essential in dusty homes .
Answer:C
Explanation: The answer is C because an air purifier purifies the air in your room which is science.
In which of the following situations or places would you want to reduce the
force of friction?
I A. Skiing down a hill during a race.
B. Walking down a steep hill.
C. Sitting in the bed of a pickup truck while it turns a corner
D. In the axle of the wheels while you ride your bicycle.
Answer:
D
Explanation:
The correct answer would be in the axle of the wheels while you ride your bicycle.
Options A, B, and C requires that the forces of friction is increased in order to have more control.
However, option D requires that there is a minimal frictional force in the axle of the wheels of a bicycle while riding so that a little effort would be required to keep the bicycle moving.
The lesser the friction, the lower the effort that would be needed to keep the bicycle moving and vice versa.
Answer it plz the answer is easy but cant undersatand
Answer:
2.
a. 3 meters^3 is the volume.
Explanation: This is when we find the volume of a rectangular prism which is whl so, 2*1.5*1=3^3.
b. 3000 is the mass.
Explanation: Density is calculated by mass/volume so, 1000=m/3. When we multiply 3 to both sides, we get 1000*3 which is 3000. So, 1000=3000/3.
Hope this helps!!! PLZ MARK BRAINLIEST!!!
Given the resistivities below, which material is best described as an insulator?
A. 4.5 22•m
B. 2.8 x 10-8
12.m
C. 1.7 x 10-8 2•m
D. 3.2 x 108 2.m
Answer: D) 3.2 × 10^8
Explanation: Insulators are best described as materials which are poor conductors of electricity and hence do not allow passage of electricity through them. Resistivity are hence used to describe property or characteristic of a material which does not allow the flow or passage of electric current.
In summary, materials which high resistivity values are referred to as Insulators. Conversely, those with low resistivity or high conductivity values are called conductors while those with intermediate values are named semiconductors.
In the question given above, the material with a resistivity value of 3.2 × 10^8 - - - has a very high resistivity value (320000000Ω), the other options given have very low resistivity values ; 0.0000000017, etc and are most likely to be conductors due to their excessively low resistivity values.
The diagram illustrates the evolution of the universe, starting from the big bang. Each concentric circle represents a stage in the evolution as stated by the big bang theory. The arrows illustrate the changes that happened after the big bang and leading up to the stage where gases were formed that later led to the formation of stars and galaxies. Choose the inaccurate statements on the diagram.
Answer: The two correct answers are Universe became more dense and universe became less transparent.
Explanation: I took the test and those are correct
The incorrect statements on the diagram universe became more dense Universe became less transparent.
What is the universe?The universe is the whole cosmic system of matter and energy. The Earth, the Sun, the Moon, the planets, and the stars along with the dust, gases, and rocks form the universe.
The big bang is the theory that explains how the universe began. It says that the universe began with just a single point. It went on expanding and stretched to grow as large as possible. It is still now expanding.
The diagram (attached) illustrates the evolution of the universe, starting from the big bang. Each concentric circle represents a stage in the evolution as stated by the big bang theory.
Thus, the inaccurate statements on the diagram universe became more dense Universe became less transparent.
Learn more about the universe.
https://brainly.com/question/9724831
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An overhead projector lens is 32.0 cm from a slide (the object) and has a focal length of 30.1 cm. What is the magnification of the image? (Unit=cm) PLS HELP
Answer: M = 14.3
Explanation:
Given the following :
Object distance (u) = 32cm
Focal length (f) = 30.1 cm
Magnification = image distance (v) / object distance (u)
Recall ; 1/f = 1/u + 1/v
1/30.1 = 1/32 + 1/v
1/v = 1/30.1 - 1/32
1/v = (32 - 30.1) / 963.2
1/v = 2.1 / 963.2
1/v = 0.0021802
v = 1/0.0021802
v = 458.66666 cm
Therefore, Magnification 'M' = v / u
M = 458.66666 / 32
M = 14.333333
M = 14.3
Answer:
M = -15.8
Explanation:
object distance = 32cm
focal length = 30.1 cm
To find M we first need to find di or image distance
I will use the equation: 1/f = 1/di + 1/do
By changing the equation to 1/f - 1/di = 1/do we get 0.0019725
equation with numbers plugged in:
1/30.1 - (1/32) = 0.0019725
To change 1/do to do we divide 1 by 0.0019725
You should get 506.97
Now use the equation
M = -(di/do)
M = -(506.97/32)
You should get M = -15.8
____________ interference occurs when two waves are out of phase
[tex]\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the Wave Optics.
Whenever the waves are out of phase they form a DESTRUCTIVE interference.
thus,
Destructive Interference occurs when two waves are out of phase.
PLS ANSWER (SCIENCE QUESTION) I WILL MARK U AS THE BRAINLIEST!!! PLS ANSWER REALLY EASY!!
Q1. Fill in the blanks:
1. __________________ are the building blocks of matter.
2. Each ________________ has a chemical symbol.
3. ________________ is used in oxy- acetylene flame for welding.
4. Noble gasses are also called __________________.
5. Dimitri Ivanovich Medeleeve arranged the elements systematically in _______________
6. Elements are the simplest kind of __.
7. Metals have __ melting and boiling points.
8. As you move from the left side of the periodic table to the right side, the elements become __________ .
Answer:
1. Atoms
2. element
This is an example of A) alpha decay B) beta decay C) gamma decay D) half-life decay
Answer:
The answer is option A.
alpha decay
Hope this helps
A 51-kg woman runs up a vertical flight of stairs in 5.0 s. Her net upward displacement is 5.0 m. Approximately, what average power did the woman exert while she was running?
Answer:
510
Explanation:
Power= Rate of doing work i.e work done\time
=force*displacement\time
=mass*g*d\t
=51*10*5/5
=510watt
Which statement is true for objects in dynamic equilibrium?
Answer:
The correct answer to the question is objects have zero acceleration.
Explanation:
Before answering the question, first we have to understand dynamic equilibrium .
A body moving with uniform velocity is said to be in dynamic equilibrium if the net external forces acting on the body is zero. Hence, the body is under balanced forces.
If the external forces acting on a body is not balanced, then the body will accelerate which will destroy its equilibrium condition. Hence, the necessary and sufficient condition for a body to be in dynamic equilibrium is that the forces are balanced.
When a body is in dynamic equilibrium, the body moves with uniform velocity along a straight line unless and until it is compelled by some external unbalanced forces.
Hence, the rate of change of velocity or acceleration of the body will be zero.
Answer:
objects have zero acceleration.
Explanation:
When is a train on Earth in motion relative to the sun? A It is relative to the sun only when the train is not moving. B It is never in motion relative to the sun. C It is relative to the sun only when the train is moving. D It is always in motion relative to the sun.
Answer:
A. It is relative to the sun only when the train is not moving.
Explanation:
when taking a shower are girls suppose to wipe front to back ?
Answer:
Explanation:
I don't think it matters while taking a shower, however, while using the restroom, it is especially encourgaed to wipe front to back. The reasoning behind this is to prevent UTI's that are transferred by fecal particles and bacteria from the anus into the vagina. Hope this helps:)