Answer:
Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. ... This extra carbon dioxide is lowering the ocean's pH, through a process called ocean acidification. Humans create horrible pollution, making climate change.
Complete these sentences to identify the types of interference. The type of interference that increases the energy of the resulting wave is called interference. The type of interference that results in a loss of energy is called interference.
Answer:
the result is an increase in energy, this is the so-called CONSTRUCTIVE INTERFERENCE.
resulting energy is zero, this is the so-called DESTRUCTIVE INTERFERENCE
Explanation:
When we have an interference process the optical paths of the two rays are added, when the incident rays arrive in phase the result is an increase in energy, this is the so-called CONSTRUCTIVE INTERFERENCE.
When the rays arrive out of phase a half wavelength the resulting energy is zero, this is the so-called DESTRUCTIVE INTERFERENCE
Answer:
its constructive and destructive
Explanation:
i got it right
Pros and Cons of the Mercator projection as a scientific model.
And
Use what you wrote in the above table and turn it into a paragraph explaining the pros and cons of globes as a scientific model.
Answer:
ok i don't know the answer but I send you tomorrow
A car traveled a distance of 30 km in 20 minutes (1/3 hours). What was the
speed of the car?
O A. 90 km/hr
O B. 60 km/hr
O c. 30 km/hr
O D. 10 km/hr
How much work is done when an engine generates 400 Watts of power in 25 seconds?
Answer:
10000 J or 10 KJ
Explanation:
power = workdone/time taken
400 = workdone/25
workdone = 400 * 25
=10000 J
if a 0.040-kg stone is whirled horizontally on the end of a 60-m string at a speed of 4.4 m/s, what is the centripetal force ? * 0.013 n 4 n 0. 32 n 20.1 n
Answer:
0.013N
Explanation:
[tex]F=\frac{mv^{2} }{r}[/tex]
m=0.04, v=4.4m/s, r=60
F=0.013 N
Who will win 2021 March Mammal Madness championship:
The red kangaroo or the Harpy Eagle
Answer:
im not sure, but i think...
Explanation:
the harpy eagle???
what is the meaning of the word antonyms
Answer:
a word opposite in meaning to another ( bad and good ).
Explanation:
a word which has opposite in meaning to another word
Which would increase the speed of a sound wave?
Answer:
I would say temperature
Which court case provided for Judicial Review?
Answer:
The best-known power of the Supreme Court is judicial review, or the ability of the Court to declare a Legislative or Executive act in violation of the Constitution, is not found within the text of the Constitution itself. The Court established this doctrine in the case of Marbury v. Madison (1803).
A lift moves i)up
and ii) down with an
acceleration of 2 ms
{s}^{ - 2} . In cach case, calculate
the reaction of the floor on a man
of mass 50kg standing in the lift.
Answer:
i) The reaction of the floor on the 50 kg man in the lift to lift up the man is 590 Newtons
ii) The reaction of the floor on the 50 kg man in the lift to move down the man is 390 Newtons
Explanation:
i) The acceleration of the lift upwards, a = 2 ms⁻²
The mass of the man standing in the lift, m = 50 kg
According to Newton's third law of motion, action and reaction are equal and opposite
Therefore, the force with which the elevator lifts the man = The reaction of the floor on the 50 kg man in the lift to lift up the man = The action of the man on the floor
∴ The force with which the elevator lifts the man up, F = The weight of the man, m·g + The force of the upward motion of the man, m·a
F = m·g + m·a
Where;
g = The acceleration due to gravity = 9.8 m/s²
m = The mass of the man = 50 kg
a = The acceleration of the lift = 2 m/s²
∴ F = 50 kg × 9.8 m/s² + 50 kg × 2 m/s² = 590 Newtons
The reaction of the floor on the 50 kg man in the lift to lift up the man = The force with which the elevator lifts the man up, F = 590 Newtons
ii) The reaction of the floor on the man when the acceleration of the lift is downwards, a = 2 ms⁻², is given as follows;
The force with which the elevator takes the man downwards, F = The reaction of the floor on the 50 kg man in the lift to lift up the man
The force with which the elevator takes the man downwards, F = The weight of the man, m·g - The force of the downward motion of the man, m·a
F = m·g - m·a
∴ F = 50 kg × 9.8 m/s² - 50 kg × 2 m/s² = 390 Newtons
The reaction of the floor on the 50 kg man in the lift to move down the man = The force with which the elevator takes the man downwards, F = 390 Newtons
What acceleration can a 1-newton force give to a 1-kilogram object?
Answer: 1 m/s/s
Explanation: One Newton is defined as the amount of force required to give a 1-kg mass an acceleration of 1 m/s/s.
The electric field 1.22 m from
charge is 1570 N/C, pointing
toward the charge. What is the
charge? Include the sign of the
charge, + or -
(The answer is *10^-7 C. Just fill
in the number, not the power.)
(Unit = C)
Answer:
-2.6
Explanation:
it’s for Acellus
The charge with magnitude and sign is -2.6 x 10⁻⁷ C.
What is electric field?The field developed when a charge is moved. In this field, a charge experiences an electrostatic force of attraction or repulsion depending on the nature of charge.
Given, the electric field 1.22 m from charge is 1570 N/C, pointing
toward the charge.
The electric field and charge is related as
E = kq/r²
q = Er²/k
where k = 9 x 10⁹ N.m²/C²
Substitute the given values in the question, we have
q = 1570 x (1.22)² / 9 x 10⁹
q= 2.6 x 10⁻⁷ C.
Thus, the magnitude and sign of charge is -2.6 x 10⁻⁷ C.
Learn more about electric field.
https://brainly.com/question/15800304
#SPJ2
PLEASE HELP ASAP!! An upright wave pulse with an amplitude of 152 mm collides with an inverted wave pulse with an amplitude of 70 mm. At the moment when the two pulses overlap, the amplitude of the pulse will have an amplitude of ________ mm.
10 turns of wire are closely wound around a pencil as shown in the figure. when measured using a scale as shown, the length of total turns is obtained 25mm. then a) What is the thickness of the wire? b) Express the thickness of the wire in centimetre.
Answer:
1. 2.5 mm
2. 0.25 cm
Explanation:
Since the length of the 10 turns of the wire around the pencil is 25 mm, then;
1. the thickness of the wire = [tex]\frac{length of total turns}{number of turns}[/tex]
= [tex]\frac{25}{10}[/tex]
= 2.5 mm
The thickness of the wire is 2.5 mm.
2. Since 10 mm = 1 cm, then;
25 mm = 2.5 cm
So that,
the thickness of the wire in centimetre = [tex]\frac{length of total turns}{number of turns}[/tex]
= [tex]\frac{2.5}{10}[/tex]
= 0.25 cm
The thickness of the wire is 0.25 cm.
A circuit contains a 20-Ohm resistor and an inductor with an inductance of 0.093 H. If the circuit has a frequency of 60 Hz, what is the total impedance of the circuit?
Answer:
Explanation:
The computation of the total impedance of the circuit is shown below:
The Total impedance of the circuit is
=
where
X_L^2 = 2πfL
= (2π) (60Hz) (0.093 H)
= 35.06 Omega
Now put the value of X_L^2 in the above formula
=
A man walks a distance of 2 m every second.
aj What speed is he travelling at?
b) How far wil he have walked in:
5 s
50 s
2 min
2 hr
Please help :(.
Explain how that energy converts itself from POTENTIAL to KINETIC energy.
Answer:
Potential energy can transfer into other forms of energy like kinetic energy. Kinetic energy is energy an object has because of its motion.
Explanation:
The ball was released, as the ball moves faster and faster toward the ground, the force of gravity will transfer the potential energy to kinetic energy.
Plssss help———what is the difference between the weight of an object and the mass of an object? (Needs to be 4-5 complete sentences)
The mass of an object is a measure of the object's inertial property, or the amount of matter it contains. The weight of an object is a measure of the force exerted on the object by gravity, or the force needed to support it. The pull of gravity on the earth gives an object a downward acceleration of about 9.8 m/s2.
The two forces are trying to make the cyclist slow down. They are _________ and _________ .
Answer:
Friction and gravity?
Explanation:
i dont know the possible answers but that's how physics so good luck.
Which describes Einstein’s second postulate about the special theory of relativity? The speed of light in a vacuum is constant, and nothing is faster than the speed of light. The speed of light in a vacuum is constant, and some things are faster than the speed of light. The speed of light in a vacuum fluctuates, but nothing is faster than the speed of light. The speed of light in a vacuum fluctuates, and some things are faster than the speed of light.
Answer:A
Explanation:
Answer: A)The speed of light in a vacuum is constant, and nothing is faster than the speed of light.
Explanation:
Answered Correctly on Edg.
what name given to the heat energy received from the sun
Answer:
solar energy
Explanation:
Please mark as the brainliest.
Answer:
The Name of the heat energy from the is called solar energy.
M= 1000 g g= 10 m/s2 h= 10 K.E at GROUND = 400 j M.E = ....... ........J the answer is 400 so plz explain how
Answer:
M = 500 J
Explanation:
Given that,
Mass, M = 1000 g = 1 kg
Height, h = 10 m
Potential energy is given by :
P = mgh
P = 1×10×10
P = 100 J
The kinetic energy at ground = 400 J
Mechanical energy = sum of kinetic and potential energy
So,
M = 100 + 400
M = 500 J
So, the mechanical energy of the system is 500 J.
Which diagram below shows the earth moon sun system arranged to cause a total solar eclipse
Answer:
its D
Explanation:
It is time when the moon completely covers the sun. So, the diagram that shows the earth moon and sun system arranged to cause a full solar eclipse is in option D.
What is a solar eclipse?A solar eclipse happens when the Moon moves in front of the Sun, blocking the Sun's light entirely or partially from a tiny portion of the Earth.
During the new moon phase of the eclipse season, when the Moon's circular plane is close to the Earth's orbital plane, such an alignment takes place around every six months.
A total eclipse occurs when the Moon completely blocks out the Sun's disk. Only a portion of the Moon is covered by annular and partial eclipses.
In contrast to a total eclipse, which can be seen from any place on Earth's night side, a partial eclipse is only viewable from a fairly tiny portion of the globe.
Therefore, it concludes that option D in the figure shows the cause of the total solar eclipse.
To know more about the solar eclipse:
https://brainly.com/question/17749647
#SPJ2
Good Nicky and Evil Nicky do 800 J of work to move shelly's tank 5 meters across the floor. How much force did you use? if it took 6 seconds to slide the box what was the power used?
Answer:
The force used is 160 N, and the power used is 133 W.
Explanation:
Because the formula for force is Work/Distance, the answer in that case would be 800J/5m, and that would give you an answer of 160 N. For Power, the formula is Work/Time, and for that the expression would be 800/6, and that would give you 133 W as the power used.
A magnet can move in a coil of wire to produce electricity in which system?
A. Generator
B. Motor
C. Magnet
D. Transformer
Answer:
A. Generator
Explanation:
Hope this will help
Answer:
A. Generator
Explanation:
That is the correct answer
1. Which of the following is NOT true about momentum?
a. It has direction
b. It is conserved in a system
c. It depends on mass and velocity
d. It is the same as the energy of a body
2. Which of the following is TRUE about the impulse acting on a body and it's change in momentum?
a. Impulse is equal to the change in momentum
b. Impulse is greater than the change in momentum
c. Impulse is less than the change in momentum
d. There is no relation between impulse and change in momentum
Answer:
1. answer - it is conserved in a system
2. answe- impulse is equal to the change in momentum
Calculate the frequency of an electromagnetic wave having a wavelength of 60 m.
Help Please
Answer:
50000
Explanation:
f= speed of light (c) which is a constant number 3×10^6 divided by wavelength
f = 3×10^6/ 60
f = 50000
1,What were you doing when you felt most passionate and alive?
2,Do you feel like you've lived this same day many times before?
Answer:
wen I was in the car toing home from school after a bad day n si si I have crazzyyy
Answer:-
1. I feel the most passionate and alive when I watch BTS, because they inspir me to do many things such as Loveing Myself and doning what I love in life and chase my dream. I also feel alive when playing soccer, dancing, playing piano, or singing/rapping, because these things are what I love to do and always loved to do.
2. Yes, I feel like I live everyday the same day, some little things change but the things I do every day are the same, never changes. Wake up, eat, homework, clean, eat, tv, eat, and sleep.
Read the excerpt from " Crossing the Brooklyn Ferry." Flood-tide below me! I see you face to face! Clouds of the west – sun there half an hour high – I see you also face to face. Which statement best describes the effect of repeating the phrase "face to face"? It shows that the narrator sees the facial features of others. It demonstrates that the narrator is surrounded by nature. It demonstrates that the narrator is surrounded by people. It shows that the narrator is suspicious of the sea and sky.
Answer:
It demonstrates that the narrator is surrounded by nature.
Explanation:
Walt Whitman's "Crossing the Brooklyn Ferry" is a free verse poem written about the speaker's return trip on a ferry. He talks about his daily commute on the Brooklyn ferry, like the other commuters, and how they all share the same experience.
The given lines are from the very first stanza of the poem. The speaker repeats "face-to-face" when talking about nature. He sees the "flood-tide below" and the "clouds" high in the sky. This repetition demonstrates that he is surrounded by nature, amidst the throng of people around him. This shows the speaker's attitude of seeing the beauty of nature in any way he can, despite the bustle of commuting from Brooklyn to Manhattan.
Thus, the correct answer is the second option.
Answer:
B
Explanation:
edge 2023
Mosa believes that ocean currents help to regulate the climate of the earth. Explain why.
Answer:
Thus, ocean currents regulate global climate, helping to counteract the uneven distribution of solar radiation reaching Earth's surface. Without currents in the ocean, regional temperatures would be more extreme—super hot at the equator and frigid toward the poles—and much less of Earth's land would be habitable.
Ocean currents help to regulate the climate of the earth as it transports warm water from the equator to the polar region and carry cold water from poles back towards the equator .
What is an ocean currents ?
An ocean current is a continuous , directed movement of sea water generated because wind , breaking waves , temperature , salinity differences etc .
Ocean currents that move from north to south ,transports warm water from the equator to the polar region and carry cold water from poles back towards the equator . This is how ocean currents help to counteract the uneven distribution of solar radiation , without ocean current it would be really hot in equator and really cold at poles.
learn more about Ocean currents
https://brainly.in/question/5760177?referrer=searchResults
#SPJ2
