Answer: If you remove all of the hawks, it stabilizes an a new equilibrium.
Explanation: For the ecosystem to stabilize at a new equilibrium, the tertiary consumer (hawks) need to be totally removed from the ecosystem. Since there's no tertiary consumer to checkmate the density of other components of the food chain, it will make form a balanced ecosystem.
The infrasound waves were at just the right ________________ to vibrate the human eye. no frikin links!!!
Answer:
pitch
Explanation:
Which of the following is an example of potential energy?
A. The plant sitting on the desk
B. The airplane Flying in the air
C. The car driving on the Street
D. The person standing up
Answer:
A
Explanation:
potential energy is energy due to position
Physicists at CERN study the conditions present during the big bang by using machines to do what?
A.super heat the air to produce new elements
B.super cool the air to create solid gases like hydrogen and helium
C.smash atoms into one another and study the results
D.separate atoms from their electrons
Answer:
The Answer is gonna be According D.separate atoms from their electrons
in comparing sunspots to other areas of the sun's surface one can say that sunspots are...?
slower in reacting to creating energy
similar in temp
cooler
warmer
Answer:
D. Cooler
Explanation:
The Sun's surface has a temperature ranging from 6 000 Kelvin, thus it is very hot. The radioactive reaction in the core of the Sun is a nuclear fusion reaction. This reaction ensures continuous release of high energy from the surface of the Sun.
But during the reaction, some parts becomes cooler than other parts on its surface. Which is due to the release of high amount of energy into space. The Sun's spot can be found in the cooler part of the Sun.
Answer:
C. Cooler
Explanation:
Explain why filing cabinets are
designed so that only one draw
can be pulled out at a time.
Answer:
Cabinets are made to open one at a time so that there's not much of space taken up when all the drawers are open. Hope this helps.
4 A car horn has a frequency of 400 Hz. The car is moving away from an
intersection at 8 m/s. The frequency heard by a woman standing at the
intersection could be
Answer:
f = 409.6 Hz, the woman hears a higher frequency sound
Explanation:
This is a Doppler effect problem, which is described by the equation for the case of a fixed observer
f = fo [tex]\frac{v}{v \pm v_s}[/tex]
where the negative sign is for the source approaching the observer
in this case the car is the one that emits the sound and moves away from the intersection
let's calculate
f = 400 [tex]\frac{343}{343-8}[/tex]
f = 409.6 Hz
therefore the woman hears a higher frequency sound
HELP!!! 50 POINTS
4. Predicting What would have happened, in terms of thermal energy transfer, if the water temperature had originally been10.0°C? Explain your reasoning.
Context:Background InformationThe quantity of energy transferred by heat from a body depends on anumber of physical properties of the body and its surroundings. For a given substance, the rate at which thermal energy is transferred by conduction depends on temperature difference, cross-sectional area,and a thermal conductivity constant that is unique to the substance.By choosing one of these properties as a manipulated variable and making the other properties controlled variables, the effect of the manipulated variable on thermal conduction can be determined experimentally.In this investigation, you will study the rates of cooling of three containers of water of equal volume but different surface area.
Answer:
do u have a picture of the question?
Explanation:
it would be easier to solve
In an electrical circuit, what happens to the current flowing through the wire if the initial voltage of 18 V is doubled, and the initial resistance of 35 Ohms is reduced by a factor of 4?
ANSWER QUICKLY PLEASE! ITS URGENT!
The current is increased by a factor of 8.
From 18/35 A. to 144/35 A.
The electric current changes from 0.514 ampere to 4.14 ampere, i.e, electric current flow in the circuit increases 8 times.
What is electric current?A stream of charged particles, such as electrons or ions, travelling through an electrical conductor or a vacuum is known as an electric current. The net rate of electric charge flowing through a surface or into a control volume is how it is calculated.
Initial electric current flowing through the circuit = (18 volt ÷ 35 ohms)
= 0.514 ampere.
When the initial voltage of 18 V is doubled, and the initial resistance of 35 Ohms is reduced by a factor of 4, electric current flowing through the circuit will be = (2 × 18 volt )÷ (35 ohms÷4)
= 4.114 ampere.
Hence, electric current changes from 0.514 ampere to 4.14 ampere, i.e., electric current flow in the circuit increases 8 times.
Learn more about electric current here:
https://brainly.com/question/2264542
#SPJ2
how does a mirror affect the path of light
Answer:
light bounces off the mirror
Explanation:
What is assimilation? Discuss the importance of social assimilation. Discuss immigration and some key challenges that an immigrant might face. What could be some benchmarks through which you can measure immigrant assimilation? What are some challenges that partners in an intercultural marriage may face? What can they do to avoid conflicts and resolve an argument or a disagreement?
Answer:
Assimilation refers to the process by which a person or ethnic group that constitutes a minority people imitates the culture of the majority population and, when the process is complete, completely abandons its own culture. Thus, the original cultural differences disappear and society becomes a monoculture. For example, immigrant groups or colonized indigenous peoples may abandon their culture, either spontaneously or after religious persecution and coercive measures, called assimilation policies.
A number of immigrant groups were assimilated into American society during the 19th century in what is usually described as a cultural melting pot or Americanization. In this case, the adaptation was not one-way, and largely spontaneous.
Magnesium hydroxide is used in?
soap
batteries
antacids
detergents
Answer:
Antacids.
Explanation:
Magnesium hydroxide is commonly used for sicknesses and etc.
HELP ME PLSSS What are the possible genotypes
of the F, offspring? What are the
possible phenotypes of the F,
offspring?
Answer:
the answer is b i think
Answer:Within an individual organism, the specific combination of alleles for a gene is known as the genotype of the organism, and (as mentioned above) the physical trait associated with that genotype is called the phenotype of the organism.
Explanation:
The phenotype is the trait those genes express. ... Looking at the possible offspring, each box (or possible offspring) has two copies of the dominant gene. This means there is a 100% chance of the offspring having brown eyes, or being BB. It's important to note here that each box represents a possible offspring.
Question 2 please help
Answer:
D
Explanation:
A drop of oil of volume 2×10-¹²m³ spreads out on water to make a circular film of diameter 10-³m . find the thickness of the film
Answer:
Explanation:
2×10-¹² = (5-³*5-³* 3.14)*h
h=0.00000001 m
How do the molecules at point A compare to the molecules at point B? They are farther apart. They have increased in size. They have lost energy. They are moving slower.
Answer: hello the image is missing but am able to provide you with an answer to your but I am unable to attach the image
They are moving fasterThey are farther apart They have gained energyExplanation:
Molecules at point A compared to molecules at point B shows that they are
They are moving fasterThey are farther apart They have gained energyThe movement of molecules is caused by the application of energy in various forms especially thermal energy
Answer:
The answer is A!
Explanation:
Got it right on edge 2021 :>
PLSS HELP YEA 25 POINTSSSS
CAN HUMANS BE " DE-EVOLVING" EXPLAIN WHY OR WHY NOT
Answer: There is no such thing as devolution from a biological standpoint. The idea that humans might regress or "develop" assumes that there is a preferred hierarchy of structure and function, such as lungs being preferable to breathing with gills.
what do you mean by efficiency of a machine?
Answer:
Efficiency in general means How well an object does with respect to its designated purpose for example a battery with Voltage of 10 volts won't exert 10 volts but slightly less due to internal resistance let's say 8V so efficiency will be 8/10 x100 = 80%
Same thing with a machine/engine If an engine is designed to produce 150 horsepower it won't give you the full energy due to part of the energy being dissipated in form of heat due to friction so let's say 145 hp is produced which is 96% efficiency
This graph indicates that the acceleration between 2.00 and 4.00 seconds is the same as that between 12.00 and 14.00 seconds.
True
False
sound and waves plz help
Answer:
A. f = 8 Hz
B. T = 0.125 s
C. λ = 0.0166 m = 16.6 mm
D. d = 7.98 m
Explanation:
A.
The frequency of the wave can be given as:
[tex]f = \frac{n.\ of\ waves}{time}\\\\f = \frac{360}{45\ s}\\[/tex]
f = 8 Hz
B.
The time period will be:
[tex]T = \frac{1}{f}\\\\T = \frac{1}{8\ Hz}\\[/tex]
T = 0.125 s
C.
The wavelength is given as:
[tex]\lambda = \frac{c}{f}\\\\\lambda = \frac{0.133\ m/s}{8\ Hz}[/tex]
λ = 0.0166 m = 16.6 mm
D.
The distance traveled in 1 minute can be found out as follows:
[tex]c = \frac{d}{t}\\\\d = c\ t\\d = (0.133\ m/s)(60\ s)[/tex]
d = 7.98 m
A student's room has a TV (250 W) ,heater (1150 W) and lamp (200 W) Electricity costs 10 fills per KWh. Calculate how much it would cost to run these three appliances for a total of 2 hour 30 minutes
Answer:
Cost = 40 fills
Explanation:
First, we will calculate the total power consumed by all appliances:
[tex]Power = P_{TV}+P_{heater}+P_{lamp}\\Power = 250\ W+1150\ W+200\ W\\Power = 1600\ W = 1.6\ KW[/tex]
Now, we will calculate the energy required:
[tex]Energy = (Power)(Time)\\Energy = (1.6\ KW)(2.5 h)\\Energy = 4 KWh\\[/tex]
Now, for the cost we use the following formula:
[tex]Cost = (Energy)(Unit\ Cost)\\Cost = (4\ KWh)(10\ fills/KWh)\\[/tex]
Cost = 40 fills
True or False: A lake has less thermal energy than a glass of water, because it is larger.
Why is your weight the same any place on Earth?
Answer: A person can weigh differently at various place on Earth because of the fluctuations in Earth's gravity, according to a new high-resolution map. ... Earth's gravity is weaker at the equator due to centrifugal forces produced by the planet's rotation
Explanation:
5. How is the person in the photos separating the
charges in her hair and the balloon?
Explanation:
when a Rubber Balloon is rubbed against human hair, electrons are transferred from the hair to the rubber, giving the balloon a net negative charge and leaving the hair with a net positive charge .As the balloon is pulled away,the opposite charge on the hair causes it to be attracted the balloon
A thin beam of light of wavelength 50 μm (in the infrared portion of the em spectrum) goes through
a thin slit and falls on a screen 3.00 m past the slit. You observe that the first completely dark fringes
occur on the screen at distances of ±8.24 mm from the central bright fringe, and that the central bright
fringe has an intensity of I0 at its center. (a) How wide is the slit? (b) What is the highest order fringe
this scenario is capable of producing? (c) What is the intensity of light at a point on the screen that is
one-quarter of the way from the central bright fringe to the first dark fringe?
Solution :
Given :
Wavelength of the thin beam of light, λ = 50 μm
Distance of the screen from the slit, D = 3.00 m
Width of the fringe, Δy = ±8.24 mm
Therefore, width of the slit is given by :
[tex]$d=\frac{n \lambda D}{\Delta y}$[/tex]
[tex]$=\frac{2 \times 50 \times 10^{-9} \times 3}{2 \times 8.24 \times 10^{-3}}$[/tex]
= 0.000018203 m
= 0.0182 mm
= 0.018 mm
The intensity of light is given by :
[tex]$I=I_0\left(\frac{\sin \beta /2}{\beta/ 2}\right)^2$[/tex] , where [tex]$\beta=\frac{2 \pi D \sin \theta}{\lambda}$[/tex]
[tex]$I=I_0\left(\frac{\sin \frac{\pi d \sin \theta}{\lambda}}{\frac{\pi d \sin \theta}{\lambda}}\right)^2$[/tex]
[tex]$I=I_0\left(\frac{\sin \frac{\pi d y}{D\lambda}}{\frac{\pi d y}{D\lambda}}\right)^2$[/tex]
Now, [tex]$\frac{dy}{D \lambda} = \frac{8.24 \times 10^{-3}\times 0.018 \times 10^{-3}}{4 \times 50\times 10^{-9}\times 4}$[/tex]
= 0.1854
≈ 0.18
[tex]$I=I_0\left(\frac{\sin 0.56}{0.56}\right)^2$[/tex]
[tex]$=I_0 \times 0.81$[/tex]
= 2 x0.81
[tex]$= 1.62 \ W/m^2$[/tex]
PLEASE HELP!! WILL MARK THE BRAINLIEST! HIGH SCHOOL PHYSICAL SCIENCE
Using what you know about the periodic table, list some patterns that organize the elements in terms of atomic number, atomic mass and valence electrons? What do the periods (horizontal rows) and groups (vertical columns) of the periodic table indicate to us about the elements that are categorized within them?
Answer:
Periods indicate that a new period at a new principal energy level which is filled with electrons. Groups indicate that the elements share similar properties because their shells are filled with the same number of valence electons.
Explanation:
e see that starting at period 2 Li has a +1 charge , He has +2 charge, B has +3 charge, C has the potential to have a +4 charge or -4 charge (because it can gain or loose electrons) and N has a -3 charge, etc. Groups however, have similar properties and every element in a 1A - 8A has the same number of valence electrons. All except the noble gases in which He only needs 2 electrons to be in a perfect state. This is its octet as it would be a completely different element if it had more than 2 electrons in its shell. An example of the groups sharing similar properties is if we were to look at group 1A. In group 1A we find H, Na, K, etc. These are all highly unstable elements when alone (not in a compound) and they are very reactive. If you were to put Na for instance in water, it would light up and you'd see a flame sitting on top of the water. A scientist could do that with the rest of the elements in the group and they would see this increasing in reactivity as you go down the periods. Francium isn't visible long enough to be able to see this happen though. It's more of that kind of element that scientists prove that it exists, but not a very common element to get to learn much about.
Could Mars be a suitable alternative to Earth as a second home for humans? Explain your answer.
Answer:
yes
Explanation:
After the Earth, Mars is the most habitable planet in our solar system due to several reasons: Its soil contains water to extract. It isn't too cold or too hot. ... Gravity on Mars is 38% that of our Earth's, which is believed by many to be sufficient for the human body to adapt to.
Photos A and B both show the same field of view containing a star-forming molecular cloud. One of the photos was taken in visible light and the other in infrared light. Which one is the visible-light photo, and how do you know?
Hello. You did not present the photos to which the question refers, which makes it impossible for your question to be answered. However, I will try to help you in the best possible way.
Your question informs us that the photos are of a star-forming molecular cloud. The molecular cloud has dust, especially when the star is forming. In this case, we must keep in mind that in photos taken in visible light, the dust is able to appear, especially in space, where this dust would not reflect light, unlike the star in formation. In this case, we can conclude that in the case of the photo taken in visible light, we could see the molecular cloud as a dark spot, due to the dust. However, it would not be possible to view it in a photo taken with infrared light.
The velocity of a particle is described by an equation v=ct +dt-2 where c=0.1m/s and d=0.02m/s Calculate
Answer:
See solution below
Explanation:
Complete question
The velocity of a particle is described by an equation v= ct + dt²
where c = 0.1 m/s and d = 0.02 m/s. Calculate:
(i) the change in velocity during the time interval t = 3 seconds and
t = 6 seconds.
(ii) the average acceleration in that same time interval
Substitute the value of c and d into the equation to have
v= ct + dt²
v = 0.1t+0.02t²
The velocity at the = 3secs will be expressed as:
V(3) = 0.1(3)+0.03(3)²
v(3) = 0.3+0.27
V(3) = 0.57m/s
When t =6secs
V(6) = 0.1(6)+0.03(6)²
v(6) = 0.6+1.08
V(6) = 1.68m/s
Change in velocity = v(6)-v(3)
Change in velocity = 1.68-0.57
Change in velocity= 1.11m/s
B) Acceleration is the rate of change in velocity
A(t) = dv/dt
A(t) = c+2dt
A(t) = 0.1+2(0.02)t
A(t) = 0.1+0.04t
If t = 3
A(3) = 0.1+0.04(3)
A(3)= 0.1+0.12
A(3) = 0.22m/s²
A(6) = 0.1+0.04(6)
A(6)= 0.1+0.24
A(6) = 0.34m/s²
Average acceleration = 0.34-0.22
Average acceleration = 0.12m/s²
pls answer this right I will give you a brainiest.
Answer:
i would pick c
Explanation:
because, w and y it is very bright and bright can be very conductive like it said.
the object having uniform velocity has zero acceleration why
Because that's what "uniform velocity" means.
Uniform velocity means constant speed in a straight line.
Acceleration means changing speed OR changing direction.