Answers
Answer:
See below
Explanation:
At A they add together (they are both positive)= construct
At B they destruct ( one is neg and one is pos)
c destruct d destruct e construct (both neg)
Related Questions
how can magnets cause objects to have kinetic energy?
please help asap
Answers
Hope this helps!
Have a nice day!
The lens parameter that enables us to brighten an image is _(blank)_.
A. diameter
B. refractive index
C. curvature radius
D. focal length
Answers
The lens parameter that enables us to brighten an image is called" Refractive Index"
What is refractive Index?Refractive index of a material is a dimensionless number that describes how fast light travels through the material. Refractive Index is a value calculated from the ratio of the speed of light in a vacuum to that in a second medium of greater density.
Therefore, refractive index is the lens parameter that enables us to brighten an image.
Read more on Refractive Index:
https://brainly.com/question/10729741
#SPJ1
Answer:
The correct answer is DIAMETER. Just took the quiz
Explanation
lightnig can be described by which statement
Answers
Answer:
Lightning can be described by the flow of electric charges between the cloud and the ground.
What are the basic si units for the speed of light?.
Answers
What are nonrenewable resources?
They are natural resources that are in limited supply and can easily run out.
They are natural resources that are in abundant supply or that can replenish themselves.
They are abundant natural resources that humans do not have to recycle or reuse.
They are artificial resources that humans use but are not able to be recycled or reused
Answers
Answer:
No. 1 is the correct answer.
Explanation:
The natural resources which deplets after long and continious use and are unable to be recreated/ takes a lot of time to renew are non renewable resources
During which phase of the moon can a lunar eclipse happen?.
Answers
when Earth is exactly between the Moon and Sun, Earth's shadow falls upon the surface of the Moon, dimming it and sometimes turning the surface red over the course of a few hours.
How long is a wave that has a frequency of 2.70X102 Hz and is moving through copper at 3560 m/s?
Answers
The wavelength of a wave that has a frequency of 2.70X102 Hz and is moving through copper at 3560 m/s is 13.19m.
How to calculate wavelength?The wavelength of a wave can be calculated using the following formula:
λ = v/f
Where;
λ = wavelength (m)v = speed (m/s)f = frequency (Hz)According to this question, a wave has a frequency of 2.70X10² Hz and is moving through copper at 3560 m/s. The wavelength is calculated as follows:
λ = 3560/270
λ = 13.19m
Therefore, the wavelength of a wave that has a frequency of 2.70X102 Hz and is moving through copper at 3560 m/s is 13.19m.
Learn more about wavelength at: https://brainly.com/question/13533093
#SPJ1
Which is an example of measurement that considers velocity? A the size of a standard basketball B the speed of baseball pitch C the placement of players on a field D the study of how records get broken
Answers
Answer: B, the speed of baseball pitch
Explanation:
The speed of a baseball pitch is an example of a measurement that considers velocity, therefore the correct answer is option B.
What is speed?The total distance covered by any object per unit of time is known as speed. It depends only on the magnitude of the moving object. The unit of speed is a meter/second.
average speed = total distance /Total time
The speed of the baseball pitch is an example of the measurement of velocity.
The size of a standard basketball is an example of the measurement of length.
similarly, option C and option d are unrelated to the measurement of the velocity.
The correct response is option B since a baseball pitch's speed is an example of a measurement that takes velocity into account.
To learn more about speed from here, refer to the link;
brainly.com/question/7359669
#SPJ2
What happens if you suspend a bar magnet so that it can swing freely.
Answers
Plant cells contain both chloroplasts and mitochondria. Compare and contrast the functions
of these organelles.
Answers
Answer:
Mitochondria and chloroplast are organelles found in a plant cell. However, chloroplast is absent in an animal but mitochondria is found in both. Mitochondria generates energy for the cell in the form of ATP using oxygen and nutrients. Chloroplast is the site for photosynthesis in a plant cell.
Help, Please...Please Please, please please please, please, please please please please, please
Answers
Answer: i thinks Its C
Explanation:
1) anything that has mass and takes up space is called
A. Tissues
B. Mass
C. Matter
D. Atomic number
E. Weight
2) mechanical energy is
A. Found in machinery only
B. Usually measured at the atomic level
C. The sum of the chemical and thermal energy of an object
D. The sum of the kinetic and potential energy of an object
( please answer it guys i really bad at my physics TnT))
Answers
2) The sum of the kitenic and potential energy of an object
Not sure about the second one but hope this helps
[tex]\qquad \qquad \huge \pink {\sf{☁Answer☁}} \\ \\ [/tex]
Anything that has mass and takes up space is :-[tex]\pink{\boxed{\sf{↪Option.c↩}}}[/tex]
→Matter✓
mechanical energy is[tex]\pink{\boxed{\sf{↪Option.d↩}}}[/tex]
→The sum of the kinetic and potential energy of an object✓
___________________☃️[tex]\sf{\:мѕнαcкεя\: ♪...}[/tex]
If a rock falls from a cliff, at what point are its kinetic energy and its potential energy the same? Ignore air resistance.
Answers
Answer:
The gravitational potential energy it had from being above the ground is converted to kinetic energy as the rock falls. As kinetic energy increases, the velocity of the rock will also increase.
Explanation:
A scientist shines light from a source onto a piece of metal, and no electrons are released by the metal. Increasing the intensity of the light source does not change this result. What is this effect, and how do scientists explain it?
This is the Doppler effect, and it is best explained by the wave model of light.,
This is the Doppler effect, and it is best explained by the particle model of light.
This is the photoelectric effect, and it is best explained by the wave model of light.,
This is the photoelectric effect, and it is best explained by the particle model of light.
Answers
This is the photoelectric effect, and it is best explained by the particle model of light.
What is the photoelectric effect?The photoelectric effect refers to the emission of negatively charged particles and electromagnetic radiation that hits an object.
The photoelectric effect shows how electrons can be released from a given object when this material is absorbing electromagnetic radiation.
The photoelectric effect is a fundamental piece of evidence for understanding the nature of light particles.
Learn more about the photoelectric effect here:
https://brainly.com/question/1359033
Neutrons are also known as____
neutrinos
photons
alpha particles
beta particles
Answers
Answer:
Beta Particles
Explanation:
what the equation for speed?
Answers
Answer:
Speed Formula:
[tex]s = \frac{d}{t} [/tex]
Whoever is good at physics, can you help me with these questions?
Answers
Answer:
i honestly do not know the awnser , im just setting up my brainly account
Answer:
Q)32) What is the unit of intensity of sound
Ans)Decibel
Q)33) Relate amplitude and distance to the intensity and loudness of sound
Ans)The average amount of energy passing through a unit area per unit of time in a specified direction is called the intensity of the wave. As the amplitude of the sound wave increases, the intensity of the sound increases. (i can't find the answer for distance and loudness i can't find it on g....o...o....g....l.....e and my textbook u will have to search it on ur own sorry)
Q)34) What is the pitch of sound
Pitch is the rise and fall of our voice when we speak. It is the characteristic of sound by which we can distinguish the sounds of the same loudness. Types: Pitch is generally of two types, high pitch and low pitch. High Pitch: The higher the frequency of the sound, the higher will be the pitch.
Q)35) How is pitch of sound related to its frequency of sound waves?
The sensation of a frequency is commonly referred to as the pitch of a sound. The pitch of the sound we hear depends on the frequency of the sound wave. A high frequency sound wave has a high pitch, and a low frequency sound has a low pitch.
Q)36) Define the Doppler effect?
The apparent change in the frequency of sound due to the relative motion between the source and the observer is called the Doppler effect.
Q)37) Explain why the doppler effect occurs
The Doppler effect, or Doppler shift, occurs when the movement of an observer relative to a source (or vice versa) causes a change in wavelength or frequency.
Sorry i can't find the last one i will try to search it afterwards
The summary identifies the location(s) in the electric field where the field strength is the greatest, explains how the electric field strength changes due to a change in position, describes the movements of both a positive and a negative test charge placed in the electric field, predicts how the electric field changes due to an increase and decrease in voltage, and predicts how the electric field changes due to an increase and decrease in the distance between leads.
Answers
(a) When the voltage increases, the electric field increases, and vice versa.
(b) When the distance of the charge increases, the electric field strength decreases, and vice versa.
Electric field directionThe direction of the electric field depends on the direction of the positive charge, electric field is always directed opposite to positive charge.
Relationship between electric field and voltageThe potential of a unit charge is the product of the electric field strength and the distance of the charge.
V = Ed
E = V/d
Thus, when the voltage increases, the electric field increases, and when the voltage decreases, the electric field decreases.
Also, when the distance of the charge increases, the electric field strength decreases, and the distance decreases, the electric field strength increases.
Learn more about electric field here: https://brainly.com/question/14372859
A train travels north at 103 km/hr. Is this an example of speed, velocity, or acceleration?
Answers
Answer:
velocity
Explanation:
when a speed is given with a direction it is velocity
Answer:
Velocity
Explanation:
Velocity is the rate, and direction of an objects movement.
Speed is the rate of and objects movement, no certain direction.
Acceleration is the rate when velocity changes over time, it can both increase and decrease, and it has both speed and direction.
I hope this helps! Have a great day!
Your Murderer~
If a wave has a frequency of 50 Hz and a wavelength of 2 meters.
Find its speed.
Answers
Answer:
100 m/s
Explanation:
here we use the wave equation which states that the velocity is equal to the product of the frequency and the wavelength.
so v = 50 × 2
v = 100 m/s
Community psychologists are not
concerned with worker stress factors.
True
False
Answers
Can someone help me with this please :(
Answers
Answer:
it should be iii) Upthrust exerted on P is more than the upthrust exerted on Q
Under what circumstances can differentiation occur in a planet?.
Answers
5. How much time does it take for a bird flying at a speed of 45 kilometers per hour to travel a
distance of 1800 kilometers
Answers
Answer:
[tex]40h[/tex]
Explanation:
Use the velocity formula to solve
[tex]v = \frac{d}{t}[/tex]
In this question, you are given velocity [tex]v = 45km/h[/tex], and you are given a distance, [tex]d = 1800km[/tex]. Time in this question is what you'll need to find.
Start by rearranging the velocity formula, to isolate for t.
[tex]v = \frac{d}{t}[/tex]
Start by multiplying both sides by t
[tex]v(t) = \frac{d}{t}(t)\\\\vt = d[/tex]
Then divide both sides by v.
[tex]vt\frac{1}{v} = d/v\\ \\t = \frac{d}{v}[/tex]
Now that you've isolated for time, sub in your values and calculate.
[tex]t = \frac{d}{v} = \frac{1800km}{45km/h} = 40 h[/tex]
a. How far does a 100-newton force have to move to do 1,000 joules
of work?
b. An electric hoist does 500 joules of work lifting a crate 2 meters. How
much force does the hoist use?
c. An athlete does one push-up. In the process, she moves half of her body
weight, 250 newtons, a distance of 20 centimeters. This distance is the
distance her center of gravity moves when she fully extends her arms. How
much work did she do after one push-up?
d. You decide to push on a brick wall with all your might for 5 minutes. You
push so hard that you begin to sweat. However, the wall does not move. If
you end up pushing with a force of 500 newtons, how much work did you
do?
Answers
Work done by a force is given as the product of force and the distance moved by the force.
What is work done?Work done is the product of force and the distance moved by the the force.
Work done = Force × distanceThus, distance required by the 100 N force is given as:
Distance = work done/forceDistance = 1000/100 = 10 m
Distance to be moved is 10 m.
Force applied = work done/ distance
Force applied by the hoist = 500/2
Force applied by the hoist = 250 N
Distance moved in one push-up = 25 cm = 0.25 m
Work done by the athlete after one push-up = 250 × 0.25 m
Work done by the athlete = 62.5 J
Distance moved by the force = 0 m
Work done = 500 × 0 = 0 N
Therefore, for work to be done, force has to move a distance.
Learn more about work done at: https://brainly.com/question/25573309
Suppose that your car is stuck on ice. The wheels spin, but the car does not move. Your friend suggests that you let the air out of the tires to increase the amount of friction. What are some reasons your friend might think this? Discuss whether or not these reasons are consistent with what you have learned about friction.
Answers
Explanation:
The center of mass of a system acted on only by internal forces cannot accelerate. without friction a car cannot move. This is a consequence of Newton's third law
If a 20g bullet has a momentum of 8kg calculate its velocity
Answers
Explanation:
I hope this helps, you can ask any questions for clarification
Use the passage to answer the question.
Light can be passed through two slits and projected onto a screen. The light from the two light sources produces a pattern of dark and light spots on the screen. The spots can be the result of interference, which happens with waves but not particles. This shows that the wave explanation is best for explaining the spots.
What is the reasoning in this passage?
(1 point)
Light can be passed through two slits and projected onto a screen.
The light from the two light sources produces a pattern of dark and light spots on the screen.
The spots are the result of interference, which happens with waves but not particles.
This shows that the wave particle is best for explaining the spots.
Answers
The reasoning in the passage is : ( C ) The spots are the result of interference, which happens with waves but not particles
Light wavesLight passed through a slit and projected onto a screen will form a pattern which is very visible and the pattern might have dark spots if there is some form of interference. Interference is present in waves and not particles.
Hence we can conclude that the reasoning in the passage is The spots are the result of interference, which happens with waves but not particles
Learn more about light waves : https://brainly.com/question/25847009
Is the sun making the side walk a chemical or phsical change
Answers
Answer: it is chemical .
Explanation: because chemical change that results in the formation of new chemical substances. During the sun tanning, both vitamin D and melanin are produced. your welcome <3 .
Koto traveled 5,000 meters north from her house with an average velocity of 4.5 m/s. what was the time of her trip? (there are 60 seconds in 1 minute.) 18.5 minutes 20.4 minutes 2 hours 3 hours
Answers
Answer:
20.4 minutes
Explanation:
5000 m / (4 m/s) = 1250 seconds
1250 seconds / 60 seconds/minute = ~ 20.4 minutes
Time taken by Koto during her trip is (a) 18.5 minutes.
The details given in the question:The distance travelled by Koto = 5000 meters
Koto's average velocity = 4.5 meters/second
To calculate time of Koto's trip following formulae is used:
Time = Distance/Velcoity
Time = 5000 meters/4.5 meters*[tex]Seconds^{-1}[/tex]
Time = 1111.11 seconds or 18.5 minutes
To learn more about the relation between speed, distance and time, refer:
https://brainly.com/question/13664094
#SPJ2