Light is the major component required by marine organisms. The penetration of the light varies with the depth of the ocean.
The penetration of the light rays decreases with an increase in depth. The light is unable to breach below 1000 to 1200 meters.
The light effect on the ocean can be explained as:
1. The seawater absorbs the red, orange, and yellow wavelengths, which causes the blue light to penetrate farther into the ocean. It gives the ocean its distinctive blue color.
2. The water absorbs the light rays as it penetrates deep into the ocean. The light rays get completely absorbed before it reaches the ground of the ocean.
3. The light cannot penetrate deep within the ocean, thus, the deep lengths of the ocean are still unknown to humans.
Thus, the light penetration decreases with an increase in the depth of the ocean.
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an object increases its velocity from 22m/s to 36 m/s in 5s. what is the acceleration of the object?
The acceleration of the object is 2.8 [tex]m/s^2[/tex].
Given the following data:
Initial velocity = 22 m/s. Final velocity = 36 m/s. Time = 5 seconds.To find the acceleration of the object:
Mathematically, acceleration is given by the formula;
[tex]A = \frac{V\; - \;U}{t}[/tex]
Where:
A is the acceleration. V is the final velocity. U is the initial velocity. t is the time measured in seconds.Substituting the parameters into the formula, we have;
[tex]A = \frac{36 \; - \;22}{5}\\\\A = \frac{14}{5}[/tex]
Acceleration, A = 2.8 [tex]m/s^2[/tex]
Therefore, the acceleration of the object is 2.8 [tex]m/s^2[/tex].
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How are convection currents important in the Earth System?
The setting sun is actually visible after it has dropped below the horizon due to the bending of light waves entering the atmosphere at a non-perpendicular angle to the surface, a process known as?
Refraction is the process in which light will bend away or towards the normal at the point of incidence when light comes from one optical medium to another optical medium.
During sunset, sun is still visible after it has dropped below the horizon.It is so because the light coming from sun is refracted when it passes through the atmosphere.
Our atmosphere has not a constant density.It varies depending its position from earth surface. Hence, refractive index of each layer of atmosphere varies which results in the refraction of sun light for which sun is visible though it is geometrically below the horizon.
Hence, the correct answer to the question is refraction.
What percentage of Earth's water is found in glaciers?
Final answer:
Glaciers and ice caps hold about 68.7% of Earth's fresh water, with most freshwater being stored in Antarctica and Greenland. They are essential parts of the water cycle and are vital fresh water reserves that could be affected by global warming.
Explanation:
Approximately 68.7% of Earth's fresh water is contained within glaciers and ice caps, with the vast majority of that - 90% in Antarctica, 9% in Greenland, and the remaining 1% scattered in other alpine regions. Glaciers play a crucial role as they hold about 69% of the world's fresh water, highlighting their importance in the global water cycle and as reserves of fresh water. As the Earth's climate warms, these glaciers are melting at an accelerated pace, which could significantly affect water supplies and sea levels worldwide.
The distribution of water on Earth is predominantly in the oceans, with about 97% being salt water. Freshwater accounts for only 3% of the Earth's water, with glaciers and polar ice caps comprising most of this freshwater. The potential melting of this ice due to global warming poses a serious threat to coastal cities and freshwater systems.
Why does earth orbit the sun rather than any other body in the solar system
Answer: A. nerve cell groups to form tissue
Explanation: hope this helps
Pressure increases with depth towards the center of earth. In which layer would you expect pressure to be the greatest.
If you were trying to build a soundproof room, which of the following materials would you choose in order to absorb the most sound, based on the coefficient of absorption for each material?
A. Heavy curtains
B. Wood
C. Concrete
D. Carpet
Explanation :
Absorption coefficient of a material determines how much sound is absorbed by the material.
To build a soundproof room, Heavy curtains and carpet can be used. They reduce reverberation.
Reverberation means an echoing sound which persists for some time. For example, when we bang on a huge piece of metal, we hear the reverberation even after we stop banging.
Hence, option (A) and (D) are correct.
Concrete, carpet, and heavy curtains would be the best materials to choose in order to absorb the most sound in a soundproof room.
Explanation:If you were trying to build a soundproof room, concrete, carpet, and heavy curtains would be the best materials to choose in order to absorb the most sound, based on their coefficient of absorption.
Concrete is a dense and solid material that effectively absorbs sound waves. Carpet and heavy curtains also have a high coefficient of absorption as they are made from materials that can trap and absorb sound.
Wood, on the other hand, is a harder material that reflects sound rather than absorbing it, making it less effective for soundproofing purposes.
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Which of the following forces can change velocity?
Acceleration forces
Equal and opposite horizontal forces
Equal and opposite vertical forces
Unequal, opposite forces
Answer:
Option A and Option D are correct.
Explanation:
We have the Newton's second law, that is rate of change of momentum is force.
[tex]\frac{dP}{dt}=F\\\\\frac{mv-mu}{dt}=F[/tex]
So if there is a force mv - mu ≠ 0
v - u ≠ 0
v ≠ u
Final velocity ≠ Initial velocity.
a) Option A is correct since there is a force
b) Option B is wrong since total force is zero.
c) Option C is wrong since total force is zero.
d) Option D is correct since there is an effective force
Option A and Option D are correct.
When a pair of enantiomers is treated with a single (pure) enantiomer of another compound, the resulting mixture is?
The resulting mixture of the pair of enantiomers that is treated with a single enantiomer of another compound is the diastereomers which is in pair. The diastereomers usually happens when there is a mixture of stereoisomers but in terms of properties, they all have configurations that are different.
Explain what would most likely happen to cloud formation if the humidity increases. Use complete sentences and give at least two supporting details.
Please do not copy off the internet, and put it in your own words.
Clouds are formed when the moisture content in the atmosphere is saturated. Thus as humidity increases, cloud formation also increases.
What is humidity?Humidity can be defined as the concentration of water vapor in the air. Thus, if there is high amount of water vapour humidity will be high. High humidity can be result in bad weather conditions such as hurricanes.
Clouds are formed by gases , when the air is saturated with water vapour. That is at the point where, maximum water content is accommodated in air.
The moisture, atmospheric gases and dust clog together to form clouds. Hence, as the humidity increases more water content can be accommodated in air and thereby more tends to form clouds in atmosphere.
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Increased humidity leads to higher chances of cloud formation as more water vapor is available in the air to condense around particles, creating moisture droplets which become clouds.
If humidity increases, cloud formation is more likely because humidity refers to the amount of water vapor in the air. When the air is moist and ascends, it cools and reaches a point where the water vapor can condense around particles known as condensation nuclei.
As relative humidity approaches 100%, condensation is likely to occur, particularly when tiny particles like dust or smoke are available to act as nuclei that the water vapor can condensate on, forming visible clouds.
What is the “p” process for elements heavier than iron
A car traveled 1025 kilometers from El Paso to Dallas in 13.5 hours.What was it's average velocity?
Answer:
Average velocity = [tex]\frac{1025}{13.5} = 75.925 km/h[/tex].
Explanation:
To get the average velocity if the car traveled 1025 km in 13.5 hours means that you have to divide the km traveled by the hours:
Average velocity = [tex]\frac{1025}{13.5} = 75.925 km/h[/tex].
find the x y and z components of the vector a given that a 65m
To find the x, y, and z components of the vector [tex]\(\vec{A}\)[/tex] shown in the diagram, we need to use trigonometric relationships.
Here are the steps to calculate each component:
Step 1: Understand the 3D vector components
- The vector [tex]\(\vec{A}\)[/tex] in a 3D space has three components, [tex]\(A_x\)[/tex] along the x-axis, [tex]\(A_y\)[/tex] along the y-axis, and [tex]\(A_z\)[/tex] along the z-axis.
- The given angles provide the direction of the vector in the 3D coordinate system.
Step 2: Calculate the z-component [tex](A_z)[/tex]
- Use the cosine of the angle between the vector [tex]\(\vec{A}\)[/tex] and the x-y plane, which is given as 35°. The cosine of this angle gives the ratio of the adjacent side [tex](A_z)[/tex] to the hypotenuse [tex](\(|\vec{A}|\))[/tex]:
[tex]\[ A_z = |\vec{A}| \cdot \cos(35°) \][/tex]
Step 3: Calculate the projection of A on the x-y plane [tex](A_xy)[/tex]
- Use the sine of the same angle to find the length of the projection of [tex]\(\vec{A}\)[/tex] on the x-y plane: [tex]\[ A_{xy} = |\vec{A}| \cdot \sin(35°) \][/tex]
Step 4: Calculate the x-component [tex](A_x)[/tex] and y-component [tex](A_y)[/tex]
- Now, use the projection [tex]\(A_{xy}\)[/tex] and the angle in the x-y plane (55°) to find [tex]\(A_x\)[/tex] and [tex]\(A_y\)[/tex]:
[tex]\[ A_x = A_{xy} \cdot \cos(55°) \][/tex]
[tex]\[ A_y = A_{xy} \cdot \sin(55°) \][/tex]
Step 5: Apply the calculations
- [tex]\(|\vec{A}| = 65 \, m\)[/tex], and we can now plug this value into the equations to calculate [tex]\(A_x\), \(A_y\), and \(A_z\).[/tex]
Let's perform these calculations.
The components of the vector [tex]\(\vec{A}\)[/tex] are approximately:
-[tex]\( A_x = 21.38 \)[/tex] m (along the x-axis),
- [tex]\( A_y = 30.54 \)[/tex]m (along the y-axis),
- [tex]\( A_z = 53.24 \)[/tex] m (along the z-axis).
To find the x, y, and z components of the vector a, we need more information about the vector. Without the direction or angles, we cannot determine the x, y, and z components of the vector a. Please provide more information so that we can help you further.
Explanation:To find the x, y, and z components of the vector a, we need more information about the vector. From the given information, it seems that the magnitude of vector a is 65 m. However, the x, y, and z components of the vector require the direction or angles.
Without the direction or angles, we cannot determine the x, y, and z components of the vector a. Please provide more information so that we can help you further.
A remote-controlled car is moving in a vacant parking lot. The velocity of the car as a function of time is given by υ⃗ =[5.00m/s−(0.0180m/s3)t2]i^ + [2.00m/s+(0.550m/s2)t]j^. Part A What is ax(t) the x-component of the acceleration of the car as function of time?
What is the difference between a convergent and divergent plate boundary
Answer: Divergent boundaries -- where new crust is generated as the plates pull away from each other. Convergent boundaries -- where the crust is destroyed as one plate dives under another.
In addition, convergent boundaries form earthquakes and volcanoes, while divergent boundaries form seafloor spreading.
Explanation:
Divergent boundaries involve plates moving apart and creating new crust, whereas convergent boundaries involve plates moving toward each other, often resulting in subduction and the destruction of crust.
Divergent Plate Boundaries:
Definition: At a divergent plate boundary, two tectonic plates move away from each other.
Formation: This movement creates a gap between the plates, and magma from the mantle rises to fill this gap, creating new crust as it cools and solidifies. This is why they are sometimes called constructive boundaries.
Examples:
An example of a divergent boundary between oceanic plates is the Mid-Atlantic Ridge, where the Eurasian Plate and the North American Plate are moving apart.An example of a divergent boundary on continental plates is the East African Rift, where the African Plate is splitting into smaller tectonic plates.Convergent Plate Boundaries:
Definition: At a convergent plate boundary, two tectonic plates move toward each other.
Formation: When these plates collide, the denser plate is often forced beneath the less dense plate in a process called subduction. This destruction of the crust is why they are sometimes called destructive boundaries.
Examples:
An example of a convergent boundary between an oceanic and a continental plate is the boundary between the Pacific Plate and the North American Plate, forming the Cascade Mountain Range.Another example is the collision between the Indian Plate and the Eurasian Plate, which has formed the Himalayas.A 30 kg body is moving through space in the positive direction of an x axis with a speed of 170 m/s when, due to an internal explosion, it breaks into three parts. One part, with a mass of 6.1 kg, moves away from the point of explosion with a speed of 69 m/s in the positive y direction. A second part, with a mass of 11 kg, moves in the negative x direction with a speed of 580 m/s. What are the (a) x-component and (b) y-component of the velocity of the third part? (c) How much energy is released in the explosion? Ignore effects due to the gravitational force.
A particle (m = 50 g, q = 5.0 mC) is released from rest when it is 50 cm from a second particle (Q = -20 mC). Determine the magnitude of the initial acceleration of the 50-g particle.
To determine the magnitude of the initial acceleration of the 50-g particle, we can use the formula for the force between two charged particles and Newton's second law of motion.
Explanation:To determine the magnitude of the initial acceleration of the 50-g particle, we can use the formula for the force between two charged particles and Newton's second law of motion. The force between two particles can be calculated using the equation F = k * (|q1 * q2| / r^2), where F is the force, k is Coulomb's constant (8.99 x 10^9 N*m^2/C^2), q1 and q2 are the charges of the particles, and r is the distance between them. In this case, the force can be calculated as F = (8.99 x 10^9 N*m^2/C^2) * (5.0 mC * -20 mC) / (0.5 m)^2. Once we have the force, we can use Newton's second law of motion, F = m * a, to solve for the initial acceleration. Rearranging the equation, we find that a = F / m. Plugging in the values, we get a = (8.99 x 10^9 N*m^2/C^2) * (5.0 mC * -20 mC) / (0.5 m)^2 / 50 g. Calculating this value gives us the magnitude of the initial acceleration of the 50-g particle.
Assume that the light from the flashlight is light from a star. Identify the spot where the light from this “star” is most concentrated.
The spot where the light from this “star” is most concentrated is at the centre.
What is light?Light is a form of electromagnetic radiation that makes things visible or enables the human eye to see. It can also be described as radiation that is visible to the human eye. Light contains photons, which are little energy packets. Light never deviates from a straight course
The spot where the light is most concentrated would be at the center. The light is most dense at the center of the flashlight. It will show brightly at the center where the light is disbursed.
The spot where the light from this “star” is most concentrated is at the centre.
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A child weighs 300 N. What is the child's mass
The mass of a child of weight 300 N is calculated by dividing the weight by the standard acceleration due to gravity (9.8 m/s^2). Thus the child's mass is approximately 30.6 kg.
Explanation:The weight of an object is the force of gravity on it and can be calculated by multiplying the mass of the object by the gravitational constant. The child's weight is given as 300 N. Based on the standard acceleration rate due to gravity, which is about 9.8 m/s2, we can find the mass using the formula W=mg where W is weight, m is mass, and g is gravity. Therefore, m=W/g which gives us m=300 N/9.8 m/s2 which is approximately 30.6 kg.
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I NEED IT CORRECT OR ILL FAIL MY COURSE:(
What role did gravity play in the formation of the planets?
A.
Gravitational forces brought together several moon-sized bodies, called planetesimals, to form larger bodies that became planets.
B.
The gravity of the Sun was too weak to hold it together, and large pieces of the Sun broke off to form the planets.
C.
Planet-sized bodies passing by the solar system were pulled in by Earth's gravity and fell into orbit around the Sun.
D.
The gravitational forces inside small asteroids pushed outward, causing the asteroids to swell to the size of planets.
Answer:
Gravitational forces brought together several moon-sized bodies, called planetesimals, to form larger bodies that became planets.
Explanation:
if you jump from a window that is 2 meters up you will most likely break the bones in your legs when you land however on a trampoline people can jump up to 6 meters without getting hurt explain why this is true?
A 0.5-kg ball accelerated at 50 m/s2 . What force was applied?
Answer:
The answer is Force is equal to 25N
Explanation:
1) Taking into account Newton's second law, which expresses that the acceleration that a body acquires is directly proportional to that resulting from the forces acting on it, and has the same direction as that resulting.
2) This law is expressed with the formula F = ma where (F) represents force, (m) represents mass and (a) represents acceleration.
3) knowing this we can replace the values given in the problem and solve:
F = (0,5kg)(50m/s^2)
F = 25N
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP! PLEASE ANSWER CORRECTLY
Which of these statements about the sun's energy is true?
It is transferred unevenly to land and water.
It is transferred evenly to air and water.
It is transferred to water through the air.
It is transferred only to air.
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C'est transféré à l'eau dans l'air à cause du
cycle de l'eau
jamal combined baking soda and vinegar but he is having trouble determining if what he observed is a chemical reaction or a physical change. a.change in color
b. absorption of heat
c. no change on properties
d. formation of new substances
a car with an initial velocity of 16.0 meter per second east slows uniformly to 6.0 meters per second east in 4.0 seconds. what is the acceleration of the car during this 4.0 second interval.
The acceleration of the car during [tex]4.0 s[/tex] is [tex]\boxed{-2.5\,{\text{m/}}{{\text{s}}^{\text{2}}}}[/tex] i.e. towards the west.
Further explanation:
Acceleration is caused due to the force exerted on the body. In case when body is in equilibrium, the net force on the body will be zero therefore, acceleration will also be zero.
In case when body is moving with certain initial velocity and the net force on the body is zero, body will continue to move with the same velocity or we can say body is moving with uniform velocity.
Given:
Initial velocity of the car is [tex]16\text{ m/s}[/tex] towards east.
Final velocity of the car is [tex]6\text{ m/s}[/tex] towards east.
Time interval is .[tex]4.0\text{ s}[/tex].
Concept:
Instantaneous acceleration is defined as the rate of change of velocity with respect to time. Average acceleration is defined as the change of velocity over a certain period of time.
Mathematically,
[tex]\boxed{a = \dfrac{{\Delta V}}{{\Delta t}}}[/tex] ……(1)
Here, [tex]a[/tex] is the average acceleration of car, [tex]\Delta V[/tex] is the change in velocity and [tex]\Delta t[/tex] is the time interval.
Write the expression for change in velocity
[tex]\Delta V = {V_{\text{f}}} - {V_{\text{i}}}[/tex] …… (2)
Here, [tex]{V_{\text{f}}}[/tex] is the final velocity of car and [tex]{V_{\text{i}}}[/tex] is the initial velocity of the car.
Velocity is a vector quantity so take magnitude as well as direction of the velocity, while substituting in the above expression.
Let’s assume unit vector in the east direction is [tex]\hat i[/tex] and unit vector in west direction is [tex]- \hat j[/tex].
Substitute [tex]6\,\hat i[/tex] for [tex]{V_{\text{f}}}[/tex] and [tex]16\,\hat i[/tex] for [tex]{V_{\text{i}}}[/tex] in equation (2).
[tex]\begin{aligned}\Delta V&=\left( {6{\kern 1pt} \hat i} \right) - \left( {16\,\hat i\,} \right)\\&=10\,\left( { - \hat i} \right)\\\end{aligned}[/tex]
Substitute [tex]10\,\left( { - \hat i} \right)[/tex] for [tex]\Delta V[/tex] and [tex]4.0\text{ s}[/tex] for [tex]\Delta t[/tex] in equation (1).
[tex]\begin{aligned}a&=\frac{{\left( { - 10\,\hat i\,{\text{m/s}}} \right)}}{{\left( {4.0\,{\text{s}}} \right)}} \\&=2.5\,\left( { - \hat i} \right)\,{\text{m/}}{{\text{s}}^{\text{2}}} \\ \end{aligned}[/tex]
Thus, the acceleration of the car during [tex]4.0 s[/tex] is [tex]\boxed{-2.5\,{\text{m/}}{{\text{s}}^{\text{2}}}}[/tex] i.e. towards the west.
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Answer Details:
Grade: High School
Subject: Physics
Chapter: Kinematics
Keywords:
Car, initial, velocity, 16.0 m/s, east, 16 m/s, 16 meter per second, 16.0 meter per second, uniformly, 6.0 m/s, 6 m/s, 6.0 meter per second, 6 meter per second, 4.0 second, 4.0 s, 4 second, 4 s, acceleration, during, interval.
The car decelerated at a rate of -2.5 m/s² east during the four-second interval.
Explanation:The acceleration of a body can be calculated using the formula a = Δv/Δt, where 'a' is acceleration, 'Δv' is the change in velocity and 'Δt' is the change in time.
Here, the change in velocity (Δv) is the final velocity minus the initial velocity, hence Δv = 6.0 m/s - 16.0 m/s = -10.0 m/s. The change in time (Δt) is 4.0 seconds.
Plugging these values into our formula, we get a = -10.0 m/s / 4.0 s = -2.5 m/s².
The negative sign indicates that the car is decelerating or slowing down.
Therefore, the acceleration of the car during this 4.0 second interval is -2.5 m/s² east, meaning it is slowing down.
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Physics homework help.
Donna stretched a spring to increase its length. Nearby in an electrical device, a positive charge attracted a negative charge. Which statement is true about the spring and the negative charge?
They both experienced contact forces.
They both experienced non-contact forces.
The spring experienced a contact force and the charge experienced a non-contact force.
The spring experienced a non-contact force and the charge experienced a contact force.
The spring experienced a contact force and the charge experienced a non-contact force.
If she stopped pulling no contact spring released.
No contact between charge and - charge, not necessarily, at least.
so i believe the correct answer is C)
which of the following can a cell contain. A. a number B. a word C. a function D.all of these.
Answer:
all of these is the answer
9.06 unit test : spreadsheet
Which type of energy is the greatest at the bottom of a roller coaster hill? A) Potential Energy B) Thermal Energy Eliminate C) Sounds Energy D) Kinetic Energy
What is the atomic number for titanium