The decrease in the intensity of light over distance, such as with increasing depth in water, is known as ______.

Answers

Answer 1

Answer:

Attenuation

Step By step Explanation:

The decrease in the intensity of light over distance, such as with increasing depth in water, is known as ______.

It is called attenuation.

The decraese in the amplitude of the signals is called attenuation.


Related Questions

A girl walks 55 m downhill in 3.2 s. What is her average velocity?

Answers

Answer:

V = 17.2

Explanation:

Speed = distance(m) / time(s)

= 55m / 3.2s

=17.2 m/s

A hot air balloon is ascending at the rate of 1.2m/s and is 80m above the ground when a package is dropped over the side.
1) How long does the package take to reach the ground?
2) With what speed does it hit the ground?​

Answers

Answer:

The package reaches the ground in  

4.67 s

and hits the ground with a speed of  

33.8 m/s

.

Explanation:

A train 90m long stops in a train station with its front buffers in line with a lamp post on the platform. Later it starts off with an average acceleration of 0.45m/s. What will be its speed in kilometers per hour when the tail buffers pass the lamp post P?​

Answers

Answer:

The speed of the train when the tail buffers pass the lamp post is 9 m/s

Explanation:

The given parameters are;

The length of the train = 90 m

The initial velocity of the train, u = 0

The average acceleration of the train, a = 0.45 m/s²

When the tail buffer pass the lamp post, P, we have;

The distance travelled, s = The length of the train = 90 m

The kinematic equation of motion is given as follows;

v² = u² + 2·a·s

Where;

v = The speed of the train when the tail buffers pass the lamp post

∴ v² = 0² + 2 × 0.45 m/s² × 90 m = 81 m²/s²

Therefore;

v = √(81 m²/s²) = 9 m/s

The speed of the train when the tail buffers pass the lamp post, v = 9 m/s.

Question 10 of 10

A television weighs 8.50 pounds. How many grams is this? (Hint: You need to

use two unit conversion fractions. 1 pound equals about 0.454 kg.)

A. 3860 g

B. 18.7 g

C. 18,700 g

D. 3.86 g

SUBWT

Answers

C. 18,700g

Explanation:

8.50+1

then -0.454

The  television weighs 8.50 pounds which is equal to 3860 grams. Hence, option (A) is correct.

What is mass?

In physics, mass is a numerical representation of inertia, a fundamental characteristic of all matter. It essentially refers to a body of matter's resistance to changing its speed or location in response to the application of a force.

The change caused by an applied force is smaller the more mass a body has. The kilograms serves as the unit of mass in the International System of Units (SI).

Given that: A television weighs 8.50 pounds.

And 1 pound equals about 0.454 kg.

Hence, the television weighs =  8.50 pounds × (0.454 kg/1 pound).

= 3.859 kg.

Hence,  the television weighs = 3.859 kg × (1000 g/1kg).

= 3859 grams

= 3860 grams ( approx.)

Hence, the  television weighs 3860 grams.

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Which statement is the best interpretation of the ray diagram shown?

Answers

Answer:

Explanation:

First off, this lens is concave. Second, the image is obviously smaller, and third, the only thing that is NOT obvious, is the fact that real images are always upside down and virtual images are always right-side-up. So the choice you're looking for is D.

Answer:

D - A concave lens forms a smaller, virtual image

Explanation:

Which element does not have the same number of electrons in its outermost shell as the other elements in its group?(1 point)

hydrogen (H)
bromine (Br)
boron (B)
helium (He)

Answers

Answer:

The answer is helium (He)

Explanation:

Because helium is in the group 18, and the other elements of group 18 have 8 electrons in it's outermost, while helium just have 2 electrons

Helium (He) does not have the same number of valence electrons as other elements in its group.

The periodic table is divided into groups with the last number of the group coinciding with the number of electrons that an element in the group has in its outermost or valence shell.

Helium is in group 18 which means that it should have the same number of valence electrons as :

NeonArgonKryptonXenon and,Radon

Yet Helium only has 2 valence electrons. We can therefore conclusively say that Helium does not have the same number of valence electrons as other elements in its group.

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State any ten reasons why students in Uganda need to study physics?use examples of the possible technological advancements which can be made using the knowledge of physics

Answers

Answer:

1.it also hleps us to became doctors becuase without physics you can't be a doctor

2.physics needs to be steady whether you like it or not it helps you in life so everybody must study physics no matter is in Uganda USA and plenty more countries there must be physics to dare to be studied

Una partícula efectúa un MAS cuya ecuación es: x=0,3 cos (2t + /6) m. Determinar: Amplitud, frecuencia angular, fase inicial, periodo, frecuencia de oscilación y posición en t=0,25 s

Answers

Answer:

The answer is below

Explanation:

Una partícula efectúa un MAS cuya ecuación es: x=0.3cos (2t + π/6) m. Determinar: Amplitud, frecuencia angular, fase inicial, periodo, frecuencia de oscilación y posición en t=0.25 s

Solution:

La ecuación de la onda es:

x = A cos (ω t + Ф), donde:

A = amplitud, ω = frecuencia angular = 2 π / T = 2 π f, Ф = fase inicial, f = frecuencia, T = período

Por lo tanto, comparando la ecuación de la onda con x = 0.3cos (2t + π / 6), obtenemos:

a) A = 0.3

b) ω = 2 rad / s

c) Ф = π / 6 rad

d) ω = 2π / T

2 = 2π / T

T = 3.14 s

e) ω = 2πf

2 = 2πf

f = 0.32 Hz

f) en t = 0.25 s:

x (t) = 0.3cos (2 * 0.25 + π / 6) = 0.22 m

Las carreras de velocidad pura en el atletismo son:
A. Un ladrón perseguido por la policia
B.100 y 200 mts planos
C. salir corriendo cuando la mama lo va a castigar
D.N.A

Answers

La respuesta es la letra b

An iron weight, suspended by a string, is motionless. The tension
in the string is 4.75 newtons. What is the mass of the iron
weight?

Answers

Answer:

Explanation:

If the mass hangs at the end of the string and the string can support the mass and doesn't break, and the mass hangs still, that means that the tension in the string is equal to the downward pull of the mass. However, we are given the tension in Newtons and the mass needs to be in kg. So we use the equation for weight:

w = mg where w, the weight, is the same as the tension in the string. Gravity is always 9.8 in the metric system:

4.75 = m(9.8) so

m = .48 kg

Answer:

Answer: A

0.485 Kg

Explanation:

20. A semiconductor is a
crystalline solid that conducts current under any condition
metallic solid that conducts current under any condition
metallic solid that conducts current under certain conditions
crystalline solid that conducts current under certain conditions

Answers

Answer:

D. crystalline solid that conducts current under certain conditions

Explanation:

Semiconductors are crystalline solids that has the ability to conduct electrical currents but on certain conditions e.g heat. The conduction of semiconductors is less than that of conductors (metals) but more than insulators (nonmetals), hence, they are said to be intermediates of conductors and insulators in terms of electrical conductivity.

Examples of semiconductors are silicon, boron, carbon, germanium, arsenic etc.

Define measurement with examples.​

Answers

Explanation:

Measurement is defined as the act of measuring or the size of something. An example of measurement means the use of a ruler to determine the length of a piece of paper. An example of measurement is 15" by 25". ... The dimension, quantity, or capacity determined by measuring.

Measurement refers to the comparison of unknown physical quantity with a known quantity.

for eg. measurement of body while sewing clothes.......

Please help!! :)

For this circuit, what will be the voltage drop across R1?

A. 21.3 V

B. 14.2 V

C. 45.0 V

D. 9.47 V

Answers

Answer:

Option D. 9.47 V

Explanation:

We'll begin by calculating the equivalent resistance of the circuit. This can be obtained as follow:

Resistor 1 (R₁) = 20 Ω

Resistor 2 (R₂) = 30 Ω

Resistor 3 (R₃) = 45 Ω

Equivalent Resistance (R) =?

R = R₁ + R₂ + R₃ (series connections)

R = 20 + 30 + 45

R = 95 Ω

Next, we shall determine the current in the circuit. This can be obtained as follow:

Voltage (V) = 45 V

Equivalent Resistance (R) = 95 Ω

Current (I) =?

V = IR

45 = I × 95

Divide both side by 95

I = 45 / 95

I = 0.4737 A

Finally, we shall determine, the voltage across R₁. This can be obtained as follow:

NOTE: Since the resistors are in series connection, the same current will pass through them.

Current (I) = 0.4737 A

Resistor 1 (R₁) = 20 Ω

Voltage 1 (V₁) =?

V₁ = IR₁

V₁ = 0.4737 × 20

V₁ = 9.47 V

Therefore, the voltage across R₁ is 9.47 V.

Answer:

9.47

Explanation:

Just Took the Test

the mass of an object is 45 kg and it has a density of 5 gram per centimetre cube what is the volume ​

Answers

Density = Mass/Volume

=> 5g/cm³ = 45kg/Volume

=> 0.005kg/cm³ = 45kg/Volume

=> Volume = (cm³×45kg)/0.005kg

=> Volume = 9000kg/cm³

5 grams fits into 45 kg 9,000 times.

Since each 5 grams occupies 1 cm³, 9,000 little packages of 5 grams must occupy 9,000 cm³ .  (That's 9 liters.)

What is the dimensional formula of Modulus of Elasticity?​

Answers

Lets find

[tex]\\ \sf\longmapsto Modulus\:of\:elasticity=\dfrac{Stress}{Strain}[/tex]

[tex]\\ \sf\longmapsto \dfrac{\left[ML^{-1}T^{-2}\right]}{\left[M^0L^0T^0\right]}[/tex]

[tex]\\ \sf\longmapsto \left[ML^{-1}T^{-2}\right][/tex]

7. Two billiard balls of equal mass, one blue and the other red, slide towards each other at 2.0m/s in opposite
directions towards each other. They collide head on and rebound both at 1.8m/s in opposite to their original
velocities,a s shown in the diagram below. Show how momentum is conserved in this collision.

Answers

Answer:

P = M V    expresses momentum

Both before and after collision the momenta are equal and in opposite directions. So the the total momentum is zero both before and after the collision. P is a vector quantity as is the velocity. Total momentum must be zero.

state any two effects of gravitational force ​

Answers

Answer:

The effect of gravity extends from each object out into space in all directions, and for an infinite distance. However, the strength of the gravitational force reduces quickly with distance. Humans are never aware of the Sun's gravity pulling them because the pull is so small at the distance between the Earth and Sun.

Answer:

The Earth's gravitational force accelerates objects when they fall. It constantly pulls, and the objects constantly speed up.

Explanation:

What are the correct units for force and for weight?​

Answers

Answer:

The associated SI unit of force and weight is the Newton, with 1 kilogram weighing 9.8 Newtons under standard conditions on the Earth's surface. However, in the US common units, the pound is the unit of force (and therefore weight). The pound is the widely used unit for commerce.

Answer:

Force: Newtons

Nmaed after Isaac Newton

Weight: also Newtons:)

Explanation:

4. An aluminium bar weighs 17 kg in air. How much force is required
to lift the bar while it is immersed in gasoline? The density
of aluminium is 170 kg/m' and that of gasoline is 42 kg/m​

Answers

Explanation:

1ml = 2.7g

Xml = 1.5g

Divide 1.5 by 2.7 to find X.

Obviously, since 1.5 is less than 2.7, you know the answer will be less than 1.

(it’s .5555555555)

Tính công của dòng điện

Answers

Answer:

CG gh sure er go b vh pxuh FPI OO c AM h kh

by how much is the weight of body less on the moon surface than on earth surface why​

Answers

Answer:

Our weight on moon is less than it would be on Earth.

Explanation:

Due to a difference of the strength of gravity on the moon. The moon's gravitation force is determined by the mass and the size of the moon. Since the moon has significantly less mass than the Earth, it will not pull objects toward itself at the strength that Earth will. This means that if you went to the moon you would weigh less, even though your mass stays the same.

Why is it difficult to maintain constant speed of a vehicle?​

Answers

Answer:

The road surface is always rough, so the frictional force between the tires and the road surface make it difficult to maintain constant speed because acceleration always changes.

Hey there!

Yes, it's difficult to maintain a constant speed of a vehicle.

Explanation:

Because, roads surfaces are not always smooth, they are rough too, for which friction occurs.

Hope it help you

Two rams run toward each other. One ram has a mass of 44 kg and runs south with a speed of 6 m/s, while the other has a mass of 50 kg and runs north with a speed of 3 m/s. What will the momentum of the system made up of the two rams be after they collide? Assume the total momentum of the system is conserved.
A. 114 kg-m/s south
B. 414 kg-m/s south
C. 414 kg m/s north
D. 114 kg-m/s north

Answers

Answer = D. 114 kg-m/s north

Noticing large amounts of algal growth in her small farm pond, a farmer adds about 20 grass carp to feed on the abundant algae and plants. After several years, the carp grow large, exceeding 20 pounds each in size. Late one summer, the farmer notices that the carp and most of the other fish are dead. The water also smells very bad. Which one of the following is the most likely explanation for the death of these fish?
A. the algae overgrew the pond and produced toxic levels of ozone
B. carbon dioxide released by the carp and algae eventually suffocated the fish in the pond
C. the large carp grew so large that they could not get enough oxygen
D. bacteria feeding on the large volume of carp feces depleted the oxygen

Answers

Answer:

D. bacteria feeding on the large volume of carp feces depleted the oxygen

Explanation:

In the context, it is given that in a small farm pond, the owner added 20 grass carp and feed them with the abundant plants and algae that is found on her pond. The carp grew large after many years but one summer the owner found the grass carps along with other fishes were dead.

The most possible explanation for the dead of the fishes in the pond because the bacteria feeds on the carp feces which depletes the dissolved oxygen present in the water. Thus the fishes could not breathe and were finally dead.

Therefore, the correct option is (D).

how long do a Tortoise live in the earth?​

Answers

Answer:

80 to 150 years

Explanation:

hope I helped

Answer: 80-150 years and some over 150 years

Explanation:

There are different types of Tortoise in earth everyone eith different lifespan. So basically normal ones have 80-150 while some other like giant tortoise even have over 150 years.

please click thanks and mark brainliest if you like :)

A baseball pitcher throws a 0.14 kg ball toward a batter who is 18 m away.
The ball is traveling at 40 m/s when it leaves the pitcher's hand. What is the
ball's kinetic energy at this point?
A. 112 J
OB. 224 J
C. 12J
D. 3 J
SUBMIT

Answers

Answer:

A. 112 J

Explanation:

KE = ½mv² = ½(0.14)40² = 112 J

help with this physics question please :)

Answers

Answer:

is that rm in you profile pic

Quả bóng 200g chuyển động với v 4m/s đập vào tường rồi bật ra ngược chiều với cùng tốc độ độ biến thiên động lượng của quả bóng là

Answers

bièn shhddkjn usb’s svyevtec tectev ev

The gravitational force of the two objects is 6.67x10-11N. Explain this statement.

Answers

Answer:

it means that the force of attraction between two object in gravitation is 6.67×10-11N

It means that the force of attraction between two object in gravitation is 6.67×10-11N.

What is the formula of mass in gravitational force?

The formula is g = GM/r2, Where M is the mass of the Earth, r is the radius of the Earth (or distance between the center of the Earth and you, standing on its surface), and G is the gravitational constant. G (without the subscripts) is the gravitational constant, and c is the speed of light.

What is the gravitational force between two objects?

The gravitational force between two objects is proportional to their masses and inversely proportional to the square of the distance between their centers. joining the two centers of masses.

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Carter is at the burger joint. To get there he traveled 5 blocks right and 10 blocks up. What coordinates did Carter start from?

Answers

Currently Carter is at 11 (Swimming pool)

Hope it helps you.. pls mark brainliest if it helps you

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what do you mean by health name a food that contain an acid Based on this model, households earn income when firms __________ purchase goods and services ___________in markets for factors of production. Suppose Caroline earns $625 per week working as jewelry appraiser for Classy's Jewelry Store. She uses $10 to get her car washed at Spotless Car Wash. Spotless Car Wash pays Antonio $275 per week to wash cars. Antonio uses $150 to purchase a necklace from Classy's Jewelry Store. Identify whether each of the following events in this scenario occurs in the market for factors of production or the market for goods and services. Event Market for Factors of Production Market for Goods and Services Caroline spends $10 to get her car washed. Antonio spends $150 to purchase a necklace from Classy's Jewelry Store. Antonio earns $275 per week working for Spotless Car Wash. Which of the elements of this scenario represent a flow from a household to a firm? This could be a flow of dollars, inputs, or outputs. i. The car wash Caroline receives ii. The $275 per week iii. Antonio earns working for Spotless Car wash The $150 Antonio spends to purchase a necklace from Classy's Jewelry Store The actual economy is more complicated than the one illustrated in the previous circular-flow diagram of a simple economy True / False The Federal government limits how much soft money financing a political campaign can receive.False True Why did many Southerners feel betrayed by President Zachary Taylor?He favored California's admission as a free state.Once in office, he supported the complete abolition of slavery.O He refused to take a position on the issue of slavery in California.He switched from the Whig Party to the Free-Soil Party. Pine Company provides for doubtful accounts expense at the rate of 2% of credit sales. 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