Perspex is a form of transparent plastic.
It has a refractive index n = 1.50. A ray of light
strikes the flat surface of a Perspex block with
an angle of incidence of 40°. What will be the
angle of refraction?

Answers

Answer 1
1.50+ 40
=41.5
And the answer is 36.

Related Questions

3. In tropical regions,
a, a permanent thermocline traps nutrients in the deep water
b. primary productivity is high all year round, because there is a constant supply of solar energy for
photosynthesis
c, the thermocline disappears in the winter
d. the upper and lower layers of water mix all year round

Answers

Answer:

a, a permanent thermocline traps nutrients in the deep water

b. primary productivity is high all year round, because there is a constant supply of solar energy for  photosynthesis.

Explanation:

Thermocline occurs in the tropical regions because the temperature is very high which warms the upper layer of water bodies whereas the lower layer of water has low temperature due to no sunlight. The primary productivity is high all year in the tropical regions, because there is a constant supply of sunlight that is needed by the plants for  preparing their own food.

The greatest amount of diversity can be found among which type of organism?

Answers

Answer:

insects first then animals

Explanation:

ANIMALS

HELPPP! i’m so confused and i need to get a good grade

Answers

Answer:

Most of the water on earth is located in the oceans

Explanation:

The question states, 97 percent of the worlds water is salt water, which is what oceans are made up of, and, obviously, oceans are made up of salt water, and oceans also cover up approximately 71 percent of the earth, which from there, we can infer, that most of Earths' water is in the oceans.

hope this helps, a brainliest would be appreciated

Most of the available water is frozen

Name at least 2 organelles depend on the ER & describe how they rely on each other

Answers

Answer:The ER also contains domains that contact the plasma membrane (PM) and other organelles including the Golgi, endosomes, mitochondria, lipid droplets, and peroxisomes.

Molecule X is most likely what kind of compound/molecule? *

Answers

Molecule X is a nucleotide

Molecule X is an enzyme to which the starch is bonded and starch- enzyme complex is formed.

What is an enzyme?

An enzyme is a type of protein that acts as a catalytic agent in chemical reactions. Enzymes play a crucial role in metabolism and other biological processes by increasing the rate at which chemical reactions occur.

Enzymes work by lowering the activation energy needed for a reaction to take place. In other words, enzymes make it easier for the reactants in a chemical reaction to come together and form products. This is accomplished by the enzyme binding to one or more of the reactants, known as substrates, and bringing them into a specific orientation that promotes the reaction. Once the reaction has taken place, the enzyme is free to bind to another set of substrates and catalyze the reaction again.

Enzymes are highly specific, meaning that each enzyme typically catalyzes only one particular reaction or a small group of closely related reactions. They are also highly efficient, able to catalyze millions of reactions per second.

Learn more about enzyme, here:

https://brainly.com/question/14953274

#SPJ2

A town plans to clear a patch of forest to make a road wider. What possible changes should the town take into account?

Answers

Answer:

block all ways of passing through .. cut grass where you want your roads expanded so you have full room to install new roads

Which kingdoms contain organisms that are multicellular?

Eubacteria

Animalia

Archaebacteria

Plantae

Answers

Answer:

B and D

Animalia and Plantae

Explanation:

got it right in edg (see pic)

hope this helps :)

The kingdom that contain organisms that are multicellular are Animaliia and plantae

What are multicellular organisms?

Multicellular organisms refers to organisms that gave more than one cells and have nucleus.

These organisms cells bond together to form tissues.

Multiple tissues join together to form organs and organs come together to form system.

Therefore, The kingdom that contain organisms that are multicellular are Animalia and plantae

Learn more about multicellular organisms below.

https://brainly.com/question/2515155

#SPJ5

Use the figure below to complete number 33 and 34.
33.
Identify the type of cell in the picture.
D
E
34.
Identify the cell parts labeled A-E.
Flagella

Answers

Can’t see the pictures is blurry

PLEASEEE HELP TEST GRADE The diagram shows a plant cell.



Drag and drop the correct word or phrase to Identify the structures labeled A, B, C, D, and E in the diagram and match it with their functions.

Answers

Answer:

A- cellulose cell wall

B - cell membrane

C - Nucleus

D- chloroplast

E - Mitochondrion

Name 2 ways wind energy is used to move objects.

Name 2 ways water energy is used to move objects.

Answers

Answer:

Wind - Humans use this wind flow, or motion energy, for many purposes: sailing, flying a kite, and even generating electricity. ... The difference in air pressure across the two sides of the blade creates both lift and drag. The force of the lift is stronger than the drag and this causes the rotor to spin.

Water - The energy from moving water can be used to create electricity in several different ways. For example: A hydroelectric dam captures energy from the movement of a river. Dam operators control the flow of water and the amount of electricity produced

What are two ways you know a chemical reaction has taken place?

Answers

Color Change and Change of Temperature:)

Select the correct answer.
Where does precipitation occur in the water cycle?
The Water Cycle
B
LA

Answers

Answer:

precipitation is when it rains. it occurs last

Explanation:

Answer:

its C

Explanation:

What is an example of weathering, erosion, and deposition in Texas? (A)Gradual change to Guadalupe Peak (B)All of the above (C)The changing coastline of Texas (D)The creation of Palo Duro Canyon

Answers

Answer: Weathering, erosion, and deposition from the terrestrial surface topography and soil characteristics. These processes, for example, have formed a variety of landforms in Texas like beaches, plateaus, mountains, and canyons as well as soil types like fertile soil, clay-rich soil, and sandy soil. The combination of topography, soil, and climatic conditions in an area defines the types of habitats that the area can support this is crucial to ecoregion classification. Ten separate ecoregions occur in Texas including 1) East Texas Pineywoods, 2) Gulf Coast Prairies and Marshes, 3) Oak Woods and Prairies, 4) Blackland Prairie, 5) cross timbers and prairies (6) Rolling Plains, (7) High Plains, (8) TransPecos, (9) South Texas Plains, (Brush Country), and (10) Edwards Plateau. Such ecoregions are named for the major types of habitats topographical features (e.g. Edwards Plateau) present in their areas. The weathering, erosion, and deposition of each of these ecoregions have an important influence. Hope This Helps :)

Answer:

all the above

Explanation:

weathered soil and rock from the ecoregion is eroded and deposited in the upper south Texas plains ecoregion

3. In centaurs, the allele for curly tails (T) is incompletely dominant to the allele for straight tails (t). The hybrid genotype results in wavy tails. In a population of 1500 centaurs, 315 have curly tails, 820 have wavy tails, and the remainder has straight tails.

a. Determine the allele frequencies of: T = ____________ t = ____________

b. Determine the genotype frequencies of TT = ___________ tt = ____________​

Answers

Answer:

a. Determine the allele frequencies of:

f(T) = 0.485 ≅ 0.48

f(t) = 0.515 ≅ 0.52

b. Determine the genotype frequencies of the exposed generation

F (TT) = 0.21F (Tt) = 0.55F (tt) = 0.24

the genotype frequencies of the next generation

F(TT) = 0.23F(Tt) = 0.5F(tt) = 0.27

Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

.
Traits that are due to _______ are considered to be acquired traits.
A education
B nutrition
C injuries
D all of these

Answers

The answer is “D”, all of the above

3. How does our current atmosphere support the concept of a simultaneous coevolution of Earth's systems and life on Earth?​

Answers

Earth systems cause a continual co-evolution of Earth's surface and the life

Some children are playing a kickball game on a flat field. One child kicks the ball and it rolled across
the field. Which statement best explains the motion of the ball?
A. The ball will roll until a force acts on it.
B. The ball will speed up as it crosses the field.
C. The energy in the ball will increase as it rolls.
D. The ball will roll continuously unless it hits something.

Answers

Answer:

A because depends on how a force acts on it is what happens to the ball

What do scientists think will happen as greenhouse gases emissions increase

A. The temperature of the earth will decrease

B. The temperature of the earth will increase

C. Temperature temperature of the earth will stay the same

D. Temperature does not impact the earth

Answers

The answer is B! Greenhouse gases are extremely harmful to the environment, they make the temperature go up! That’s why people are trying to cut down on pollution. You can do your part by recycling :) Hope this helps!

When a car is traveling at a constant speed of 35 mph until the driver presses the brake, this is an example of Newton’s

Answers

i dont know hit the book tho your bad

Metagenomics (check all that apply): Group of answer choices Can leverage Next Generation Sequencing technology to identify and characterize organisms. Rarely finds previously unknown microorganisms. Has resources to support analysis at the DOE-JGI site. Can identify microbiologic organisms without traditional isolation and culturing of individual organisms.

Answers

Answer:

- Can leverage Next Generation Sequencing technology to identify and characterize organisms

- Has resources to support analysis at the DOE-JGI site.  

- Can identify microbiologic organisms without traditional isolation and culturing of individual organisms.

Explanation:

Metagenomics can be defined as the study of whole genomes of biological communities recovered from environmental samples. This genomic field has enabled the discovery of new species (microorganisms) and their effects on the environment. Next-Generation Sequencing (NGS) technologies allow to obtain huge amounts of genomic data, which has been a limitation in genomics and metagenomics. Metagenomic NGS (mNGS) is a technique used for sequencing nucleic acids present in a biological sample containing mixed populations of microorganisms. Finally, the Department of Energy Joint Genome Institute (DOE JGI) is a referent in metagenomic analysis, especially in genome assembly data obtained from microbial communities. This Science User Facility has developed a series of bioinformatics tools and databases in order to analyze metagenomic information.

If you owned a large, varied music collection, how might you devise a key to keep track of all your different kinds of music? Present your idea comprehensively.

Answers

Answer: i would keep all my music in safe with a lock on it so tht nobody cant touch it

Explanation: hope this answers your qeustion

19. Which type of cell has the potential to develop
into any type of cell?

a. totipotent
b pluripotent
c. multipotent
d. differentiated

Answers

Totipotent why is everyone sending links :/


A 15 mL sample of gasoline has a mass of 11 g. What is the density of the gasoline?

Answers

PLS help ASAP I DONT have time to answer this, it also detects if it’s right or wrong. PLS help ASAP I DONT have time to answer this, it also detects if it’s right or wrong. PLS help ASAP I DONT have time to answer this, it also detects if it’s right or wrong. PLS help ASAP I DONT have time to answer this, it also detects if it’s right or wrong. PLS help ASAP I DONT have time to answer this, it also detects if it’s right or wrong. PLS help ASAP I DONT have time to answer this, it also detects if it’s right or wrong. PLS help ASAP I DONT have time to answer this, it also detects if it’s right or wrong. PLS help ASAP I DONT have time to answer this, it also detects if it’s right or wrong. PLS help ASAP I DONT have time to answer this, it also detects if it’s right or wrong.

The density of gasoline with a mass of 11g and volume of 15mL is 0.733g/mL.

DENSITY:The density of a substance can be calculated by dividing the mass of the substance by its volume. That is;

Density = mass ÷ volume

According to this question, a 15 mL sample of gasoline has a mass of 11 g. The density of gasoline is calculated as follows:

Density = 11g ÷ 15mL

Density = 0.733g/mL

Therefore, the density of gasoline with a mass of 11g and volume of 15mL is 0.733g/mL.

Learn more about density at: https://brainly.com/question/952755

Which of the following sentences correctly describes the effect of an invasive species on an area?
1.Invasive species have naturally evolved to be top predators in an ecological area. 2.These species do not have a major effect on an ecosystem.
3 .However, they may decrease the population of local species.
4. This decrease causes a drop in local fishing yields.
5. Because of their exotic nature, invasive species boost local tourism.​

Answers

Answer:

They may decrease the population of local fish

Explanation:

Select ALL of the following genotypes below that respresent males.
XXY
XX
XYY
XXX
XY

Answers

Answer:

Is it XXX that all males want?

Explanation:

Just joking! I still think it is XXY

The genotype that represents males is XY of 50 % of both  X and Y chromosomes where a slight change in the alignment might cause to chromosomal disorders .

XXY , XYY ,  XY represents males genotypes.

What are chromosomal disorders ?

These are the disorders which are associated with the change in the normal XY sequence of males. Various disorders and syndromes are associated with the mutation and the responsible factor can be trisomy like.

XXY  is  a chromosomal mutation found in the males only called as Jacob syndrome, XYY is a chromosomal disorder called as klinefelter syndrome  found in males only.

XX is the genotype of a female, XXX is a condition that affects 1 in every 1000  females.

Thus, except XX and XXX is the exception as both of these represent females.

Learn more about chromosomal disorders at :

https://brainly.com/question/2753255#

    

#SPJ2

 

 

Who ever can do this for me will be marked that Brainly thing and thanked

Answers

Answer:

Explanation:

its my first day going through the first cycle as a drop of water and it starts off with me going through evaporation. it feels.. misty and cozy at the same time. as i rise from the ocean i say goodbye to my brothers and sister who are soon to come. i next go through transpiration in which i transition into the cycle of condensation in which i'm with other follicles of water. we get bundled together until we are to heavy to lay adrift in the clouds. while dropping i land in a puddle in which we land in a puddle. once the cycle has stopped a deer manages upon us and cleanses itself. a little after the matter the deer runs, in which a bear approaches us and replenishes itself. once it releases the water we go through the cycle all over again. Fin.

sorry if not good enough haven't done it in a little

.Explicati de ce algele pluricelulare au culoarea rosie,verde respectiv bruna ?

Answers

Answer:

Due to different pigments.

Explanation:

The multicellular algae are red, green and brown because of the presence of pigments. The red algae are red in colour because of the presence of the phycoerythrin which is a type of pigment. This pigment reflects red light due to already presence in its body and absorbs blue light that is necessary for photosynthesis process. The brown algae contain fucoxanthin pigment and green algae contain xanthophylls pigments that are responsible for its colour so we can conclude that these different types of pigments are responsible for the different colour of algae.

What is the kinetic energy of a 0.05 kg golfball that is rolling at 3 meters
per second?
0.375 J
15 J
0.225 J
0.45 J

Answers

Answer:

0.225

Explanation:

1. The Earth experiences days and nights due to the:

a. revolution around the sun.

b. tilt of Earth.

c. rotation on it's axis.

Answers

C. Rotation on its axis

Which of the following correctly compares the types of root structures.
A. tap roots have many small roots while fibrous roots have a primary root and auxiliary roots
B. Tap roots have a root cap and undergo primary growth, fibrous roots lack a root cap and undergo
secondary growth
C. monocots have fibrous roots, dicots have tap roots
D. monocots have tap roots, dicots have fibrous roots

Answers

Answer:

C

Explanation:

Dicots have a tap root system, while monocots have a fibrous root system. A tap root system has a main root that grows down vertically, and from which many smaller lateral roots arise.

Other Questions
A scientist claims that Fabric A is better able to resist fire than Fabric B.Which option describes an experiment that will produce evidence that willsupport or refute her claim? 1. Evidence should always be analyzed to ensure it strongly supports your thesis/claim. ?True or False2. . Select the correct order for an introductory paragraph.a. Hook, Thesis/Claim, Reasons, Evidenceb. Hook, Reasons, Evidencec. Transition, Hook, Thesis/Claim, Reasonsd. Hook, Thesis/Claim, Reasons3. . Informative essays have a a. Thesisb. Claim4. Argumentative essays have aa. Thesisb. Claim HII IM ON A TIME RUSH ANSWER THIS CORRECT FOR 50+ BRAINLIEST POINTS AND BRAINLIEST PLEASE HELP The tiny isolationist nations of Lorland and Zhangia are considering opening their borders to trade with each other. Both nations produce only two goods: smoothies and sandals. Currently, a worker in Lorland can produce 2 smoothies per day or 8 sandals per day, while a worker in Zhangia can produce 1 smoothie per day or 5 sandals per day. Using this information, please match each nation and good to the most accurate description.Write each item to its matching item . a. the nation that will specialize in producing smoothies once trading begins b. the nation that will specialize in producing sandals once trading begins c. the good that Lorland will import from Zhangia after trading begins d. the good that Lorland will export to Zhangia after trading beginsZhangia Sandals Smoothies Lorland any help is gladly appreciated! Do you think that it is difficult for the Fed to try to control the amount of money in circulation? Why or why not Shaun is 1.88 m tall.David is 6 cm taller than Shaun.How tall is David Mrs Blake is paid a weekly wage of $248. During a certain week she worked 5 hoursovertime. Her total wages were $285.50.Calculateher overtime wages(2 marks)(11)the overtime rate of pay.2 marks)p Please help me In this question Write a letter to your father and request him to buy you a bicycle. 1Write the following:a) 16 as a fraction of 152b) 15 as a fraction of 210 Mr. Enriquez has used 4 1/8 bags of top soil in his backyard.Each bag covers 180. 5 ft square. How many square feet washe able cover with the bags he used? why does iron have two kinds of valence number? Find the 20th number in the sequence I started: 5, 7, 15, 17, 25, 27... HELP FAST ASSAAAAAAAPPPPP 15 POINTS BRAINLEST OF CORRECTEXOPNENTIAL GROWTH AND DECAY PROBLEMThe half-life of radioactive kind of tellurium is 9 hours. How much will be left after 18 hours, if you start with 704 grams of it? How do I solve this? Thank you. I need help I have questions I need answers in coding html,css,js and python.Fast The purpose of the sleep method is to reduce the amount of energy the program uses.TrueFalseThe _____ is a collection of webpages that use the internet.pseudocodeWorld Wide WebPythonserverWhich of the following lines of code would correctly create a list called weapons?weapons == [sword, sling, knife]weapons = [sword or sling or knife]weapons = (sword, sling, knife)weapons = [sword, sling, knife]Which of these lines of code would import both the random and the time modules?import random, timeimport random and timetime.import, random.importimport(random, time)When using HTML, your text should be placed between the opening and the closing tags.TrueFalse Confused- A liquid starts at a temperature of 210 degrees and cools in a room held at a constant 68 degrees. After 8 minutes of cooling, it is at a temperature of 97 degrees. The temperature, F, can be modeled as a function of time in minutes by the equationF(t) = a(b)^t + c Determine the following probabilityRandomly selecting a three child family with either zero or one boy childThe probability is.....? the __________ were not allowed to either study or perform sacrifices. (a)shudras (b)kshatriyas (c)vaishyas