Answer:In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. In secondary succession, an area previously occupied by living things is disturbed—disrupted—then recolonized following the disturbance.The first organisms to appear in areas of primary succession are often mosses or lichens. These organisms are known as pioneer species because they are the first species present; pioneer species must be hardy and strong, just like human pioneers.A heterotroph is an organism that eats other plants or animals for energy and nutrients. The term stems from the Greek words hetero for “other” and trophe for “nourishment.” Organisms are characterized into two broad categories based upon how they obtain their energy and nutrients: autotrophs and heterotrophs.
Explanation:I forgot Extinct
Quentin is playing baseball and is batting. He swings and hits the ball sending it flying to the outfield. Which is greater- the force of the ball on the bat or the force of the bat on the ball ?
Answer:
The force of the ball on the bat is same as the force of the bat on the ball.
Explanation:
A bat hits the ball and the ball moves to the out filed.
According to the Newton's third law, for every action there is an equal and opposite reaction.
The action and the reaction forces acts on the two different bodies but the magnitude of the force is same.
As the ball is hitted by the bat, the bat exerts the force on the ball and the same force is exerted on the bat by the ball according to the Newton's third law.
So, the force of the ball on the bat is same as the force of the bat on the ball but the direction of force is opposite.
Two identical sounds are played from two laptops sitting
next to each other on a table. Both sounds have the same
pitch but one is quiet than the other. Which of the
following is most likely the difference between the two
sound waves produced by the laptops?
Amplitude
O Wavelength
O Frequency
Wave Speed
Ouestion 9
1te
Answer:
Amplitude
Explanation:
The lower the amplitude, the lower the frequency.
(b) With a current of 0.38 A, the average velocity of an electron in the wire is 5.5 10-6 m s-1 and the average magnetic force on one electron is 1.4 10-25 N. Calculate the flux density B of the magnetic field.
Answer:
B = 0.159 T
Explanation:
Given that,
Current, I = 0.38 A
The average velocity of the electron, [tex]v=5.5\times 10^{-6}\ m/s[/tex]
The average magnetic force on the electron, [tex]F=1.4\times 10^{-25}\ N[/tex]
We need to find the flux density B of the magnetic field. We know that the magnetic force is given by :
[tex]F=qvB\\\\B=\dfrac{F}{qv}[/tex]
Put all the values,
[tex]B=\dfrac{1.4\times 10^{-25}}{1.6\times 10^{-19}\times 5.5\times 10^{-6}}\\\\B=0.159\ T[/tex]
So, the required flux density of the magnetic field is 0.159 T.
Any help would be great! Thank you x
Giving brainliest answer xoxo
Answer:
A vacuum would have been created. I hope this helps have a great day
When was Brood X first identified and by who?
Answer:
.....................................................................
Answer:
.................................................................
Explanation:
2. Why is CO2 important?
why is Australia skin cancer rate so high?
claim 2 there is something different about the sunlight in Australia
claim 3 more people in Australia have skin that is easily damaged by sunlight
Answer:
they are also close to the ring of fire and the south pole so..
claim 2
Answer:
None of thoes
Ozone layer depletes, direct effect of sunlight
What formula oan be used to determine the velocity of an object in free fall?
Answer:
A
Explanation:
How much work is done by 0.070 m3 of gas, when the volume remains constant with pressure of 63 x 105 Pa?
Answer:
W = 0 J
Explanation:
The amount of work done by gas at constant pressure is given by the following formula:
[tex]W = P\Delta V[/tex]
where,
W = Work done by the gas
P = Pressure of the gas
ΔV = Change in the volume of the gas
Since the volume of the gas is constant. Therefore, there is no change in the volume of the gas:
[tex]W = P(0\ m^3)\\[/tex]
W = 0 J
What would changing the frequency of a wave do to the wave?
What is the best description of the destructive interference of light?
The crest of one wave overlaps with the trough of another.
A mechanical wave meets an electromagnetic wave.
A longitudinal wave meets a transverse light wave.
The crests of two waves intersect.
Destructive interference occurs when the maxima of two waves are 180 degrees out of phase: a positive displacement of one wave is cancelled exactly by a negative displacement of the other wave.
Answer:
The crest of one wave overlaps the trough of another.
Answer:
The crest of one wave overlaps with the trough of another.
Light travels through water at 2.2506 x 108 m/s. A person shines a light at a friend that is underwater. If the ray in the water makes an angle of 38° with the normal, what is the angle of incidence?
please find your answer in the attached image, than you for 48 points.
The ray in the water makes an angle of 38° with the normal, so the angle of incidence is 55°.
What is Angle of Incidence?The angle of incidence is defined as the angle between a ray incident on a surface and the line which is perpendicular to the surface at the point of incidence called the normal. The beam can be created by any wave, such as optical, acoustic, microwave and X-ray.
Angle of incidence can be find out by Snell's Law. For the above given information,
Speed of light in water, v = [tex]2.2506 * 10^8 m/s[/tex]
Speed of light in vacuum, c= [tex]3* 10^8 m/s[/tex]
Refractive index (µ)= c/ v
So, Refractive index = [tex]3 * 10^8 / 2.2506* 10^8[/tex] = 1.33
Using Snell's Law,
µ of air * sin θ = µ of water * sin 38°
1 * sin θ = 1.33 * 0.61
sin θ = 0.811
θ = 55°
Thus, the ray in the water makes an angle of 38° with the normal, so the angle of incidence is 55°.
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 why are waves faster in liquids and gases than in air
Answer:
see explanation
Explanation:
sound travels faster in liquid than in gases because the molecules are packed closer together!
hope this helped! xoxo raina
whats wavelength? pls explain in 8th grade form pls
Answer:
Wavelength is the distance from one wave ray to the next. They can be from trough to trough or from crest to crest.
A gas has a volume of 60dm³ when it is under a pressure of 30kpa. Calculate it's volume when pressure changes
Explanation:
Given that,
Initial volume = 60dm³
Initial pressure = 30 kPa
We need to find the new volume when pressure changes to 40 kPa (say).
We know that the mathematical relation between volume and pressure is given by :
[tex]\dfrac{P_1}{P_2}=\dfrac{V_2}{V_1}[/tex]
Put all the values,
[tex]V_2=\dfrac{P_1V_1}{P_2}\\\\V_2=\dfrac{30\times 60}{40}\\\\V_2=45\ dm^3[/tex]
So, when pressure of the gas increases, its volume get decreased.
HELP PLZZZZZ NOW!!!
Discuss how earthquakes are affected by the uneven distribution of Earth’s natural resources like minerals, energy, and groundwater resources, and how human activities affect Earth’s processes. Discuss past events and future risks associated with such activities in the country you selected.
Propose at least 1 resolution that the Ministry of Environment can take to limit the negative effects of such activities and as a result protect the country against harmful earthquakes.
Answer:Climatic processes affect the dynamics of Earth's ice sheets and glaciers, and along ... by abrupt events and by continuous reshaping of Earth's surface from surface ... Forecasting natural disasters, including the timing and size of earthquakes, the . Last, human activity has a profound impact on water resources, landscape
Explanation:
step by step
All of the following are bases except
answers:
A. NaOH
B. Al(OH)3
C. HBr
D. Ca(OH)2
Answer:
(C) HBr is an acid .......
The position of a charge an electric field that gives an electric ____ energy
Answer:
"potential"
Explanation:
just completed a assignment on this hope it helped lol.
The position of a charge an electric field that gives an electric potential energy.
What is energy?Energy is the ability or capability to do tasks, such as the ability to move an item (of a certain mass) by exerting force. Energy can exist in many different forms, including electrical, mechanical, chemical, thermal, or nuclear, and it can change its form.
A potential energy that arises from conservative Coulomb forces and is connected to the arrangement of a specific set of point charges inside a given system is known as electric potential energy.
The position of a charge an electric field that gives an electric potential energy.
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What is a Weather Front. in your own words but be more detailed about what you say.
Explanation:
A weather front is a boundary separating air masses of several characteristics eg. Air density, wind and humidity. Disturbed weather often arises from these differences
What is the relation of pressure, force and area?
Answer:Answer: Pressure is directly proportional to force and inversely proportional to area. Explanation: As from above it is visible that pressure is directly proportional to the force applied which means that if force increases, pressure increases. It is also inversely proportional to the area of cross-section.
Explanation: welcome
What does this diagram represent?
A.) a turbine
B.) a motor
C.) a generator
D.) an electromagnet
The image shown in the question is a clear depiction of a generator.
What is a generator?A generator is an equipment that has to do with the production of electricity by the use of electromagnetic induction. The generator has split rings that make contact with the exterior.
The image shown in the question is a clear depiction of a generator.
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Answer:
Explanation:
C. Generator
400 Kelvin to degrees Celsius
Answer:
400-273
127° C
I hope it's helps you
Answer:
126.85
Explanation:
hope it helps you!!
brainliest pls
Im B O R E D someone please entertain me :(
Answer: Boo
Explanation:
Answer:
r u a ghost because i want 2 b ur boo
Explanation:
The Kentucky Derby is a 1¼ mile race. Mandaloun ran it in 1.52 minutes. Hot Rod Charlie ran at a speed of .79 miles per minute. Who won the race?
Answer:
Mandaloun won the race.
Explanation:
First, we will calculate the time taken by the Hot Rod Charlie:
[tex]s = vt\\t = \frac{s}{v}[/tex]
where,
t = time taken by Hot Rod Charlie = ?
s = distance covered = 1.25 miles
v = speed of Hot Rod Charlie = 0.79 miles/min
Therefore,
[tex]t = \frac{1.25\ miles}{0.79\ miles/min} \\t = 1.58 min[/tex]
Since Hot Rod Charlie took more time (1.58 min) than the Mandaloun (1.52 min).
Therefore Mandaloun won the race.
please answer this dear friends please
Answer:
7. 5 pa
8. 5 pa
9. 5 pa
10. 75 pa
11. 25 N
Explanation:
7.
P = F/ A
= 15 / 3
= 5 pa
8.
P = F/ A
= 35 / 7
= 5 pa
9.
area of floor = l × b
= 1 × 4
= 4m^ 2
P = F / A
= 20 / 4
=5 pa
10.
area in m^2 = 400/100 = 4m^2
P = F/A
= 300 / 4
= 75 pa
11.
F = P×A
= 25×1
= 25 N
Electromagnetic waves are made by vibrating electric charges and can travel through what
Answer:
vibrates, and they carry energy from one place to another. Look at the sound wave and the water wave. vibrating electric charges and can travel through space where matter is not present. to particle, electromagnetic waves travel by transferring energy between vibrating electric and magnetic fields.
What is true about the elements that make up a mineral?
Answer:
All minerals have a definite chemical makeup. ... For example, the mineral hematite has two iron atoms for every three oxygen atoms. The mineral magnetite has three iron atoms for every four oxygen atoms. Many minerals have very complex chemical formulas that include several elements.
Explanation:
a 400 g of a liquid of density 1.6g/cm3 is made from mixing liquids of density 1.2g/cm3 and 1.8g/cm3 find the mass of the liquid of density 1.2g/cm3
Answer:
100 g
Explanation:
Let the mass of density 1.2 g/cm³ be x gram and let the mass of density 1.8 g/cm³ be y gram
Applying
Density (D) = mass(m)/Volume (V)
Volume (V) = mass(m)/Density(D)
V = m/D........................... Equation 1
From the question,
x+y = 400...................... Equation 1
Volume of the liquidis
V = 400/1.6 = 250 cm³
(x/1.2)+(y/1.8) = 250
(1.8x/1.2)+y = 450............... Equation 1
Solving both equation simultaneously,
Subtract equation 1 from equation 2
x-(1.8x/1.2)+(y-y) = 400-450
x-1.5x = -50
-0.5x = -50
x = -50/-0.5
x = 100 g.
Hence the mass of the liquid of density 1.2 g/cm³ is 100 g
If an object on earth has a mass of 50 kg, what is its weight in Newtons? Convert that weight to pounds.
Answer:
110.23113077052545
Explanation:
Which statement below BEST explains global warming?
B. an increase in the concentration of ozone
C. a decrease in the amount of deforestation
A. an increase in Earth's average surface temperature
D. an increase in the temperature of the oceans
The correct answer is A. an increase in Earth's average surface temperature.
While all of these are aspects of global warming, option A best summarizes it.