A train travels a distance of 1,200 kilometers in 20 hours. The speed is _________ per __________.​

Answers

Answer 1
The train travels at a speed of 60km/h

Related Questions

What types of reactions are catalyzed by enzymes?
A. Hydrolysis
B. Dehydration Synthesis (also known as Condensation)
C. All of these
D. Other types of reactions​

Answers

Answer:

is B. Dehydration synthesis

Explanation:

I hope this helps

The types of reactions are catalyzed by enzymes which is also known as dehydration Synthesis as condensation. Thus, option B is correct.

What is dehydration synthesis?

When the level of water has been decreased the phenomenon has been known as the dehydration and the types of reactions are catalyzed by enzymes which is also known as dehydration Synthesis as condensation.

Enzymes has been known as the biological catalyst that has been speed up the chemical reaction that use to carries out in the body. Enzymes are the protein by the nature and there are number of the enzymes present in our body such as the salivary amylase, pepsin, renin, lyases, lygases etc

The main function of the enzyme has to make the metabolism fast as well as speed up the chemical reaction carried out in the body. The best example of the enzyme has been salivary amylase which has an enzyme and it is present in the saliva and helps in the digestion of food.

Therefore, The types of reactions are catalyzed by enzymes which is also known as dehydration Synthesis as condensation. Thus, option B is correct.

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How does water change the shape of Earth's surface?
I

Answers

Answer:

water can dissolve rocks and cement thru a process called erosion

Explanation:

Answer:

Without the oceans the Earth would look like it had dents in it. It wouldn't have the round smooth-ish appearance it has with the water.

Electrons were discovered because of the their
a. charge
b. movement
c. mass
d. shapre

Answers

Charge ? I’m not sure

HELP PLEASE!!!!!! :)

Answers

Answer:

A . 10 is the population density in pond a B .20 is the population density in pond b C . pond b is the larger Population density

Are there any parts of the human body that get oxygen directly from the air and not from the blood?

Answers

other then the lungs no all of the body parts get oxygen from blood cells

What reacts with sulfur dioxide in
the atmosphere to form acids that
return to the surface as either dry
or wet deposition?

Answers

Answer:

Acid rain is caused by emissions of sulphur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids.

Start off with 2,500 plants of which 50% have medium-tip leaves, 25% have wide-tip leaves, and 25% have drip-tip leaves,
Each circle in your simulation will represent 125 organisms. Calculate how many circles you need for each trait, and then
create your simulation. Be sure to include a key that states the color coding for each trait.

Answers

Answer:

I don´t know if this is right, but this is what I got.  

Explanation:

Would DNA fingerprinting be useful in solving crimes if there was no such thing as nonsense codes/junk DNA?

Answers

Yes it would be useful because it can still be run through the database and something Can still be found linked to the person .

hello help please i’ll mark brainliest!!! please help

Answers

Answer:

Answer: The hottest time of the day is around 3 p.m. Heat continues building up after noon, when the sun is highest in the sky, as long as more heat is arriving at the earth than leaving. By 3 p.m. or so, the sun is low enough in the sky for outgoing heat to be greater than incoming.

Explanation:

Answer:

The third one

Explanation:

The Green River Formation is famous because it
is the largest fossil deposit in the world
contains the oldest known bat fossil
has the most recently discovghed fossil deposit
is the best known location for carbonized fossils
NEXT OUESTION
© ASK FOR HELP

Answers

Answer:

is the largest fossil deposit in the world

contains the oldest known bat fossil

Identify the type of RNA molecule shown in each of the following pictures. You can use the abbreviated names in your answers.

Answers

The first is transfer RNA or tRNA, which transport amino acids to the ribosome during translation (protein synthesis).

The second is messenger RNA or mRNA, which is produced during transcription and carries the coding sequence for a gene to be translated into a peptide.

The last is ribosomal RNA or rRNA, which, along with proteins, make up the ribosome, the site of protein synthesis.

explain reproduction in hydra​

Answers

Answer:

Budding

Explanation:

The common asexual method of reproduction by hydras is budding. Buds originate at the junction of the stalk and gastric regions. The bud begins as a hemispherical outpouching that eventually elongates, becomes cylindrical, and develops tentacles. The bud then pinches off and a new individual becomes independent. Buds are produced every two to three days under favorable conditions. Following unfavorable conditions, such as injuries or periods of scarce resources, hydras occasionally reproduce through transverse and longitudinal fission.

help me please!
Describe the difference between a scientific law and a scientific theory.

Answers

Answer:A scientific law describes an observed pattern found in nature without explaining it. The theory is the explanation  well tested explanation for a set of observations or experimental results.

Explanation:


Students investigated body temperature in the class.
The bar chart shows the results.
Body temperature in °C
0 One student used the bar chart to calculate the mean body temperature of the class.
The student calculated the mean body temperature as 37.0 °C.
How did the student use the bar chart to calculate the mean?
(2 points)
00
7.
6
5

Answers

The bar graph that is essential to answer the question is attached with the answer:

Answer:

The correct answer is given as follows:

Explanation:

Mean is the average in a common or informal way. It can be calculated by Adding the total numbers up and divide them by the total number of values in the set.

In this case: 37 is the mean value that can be calculated by:

adding all the values: 36.7+36.8+36.9+37+37.1+37.2+37.3 = 259

Number of sets = 7

then mean = 259/7

= 37

Thus, the mean can be calculated by total value divided by the number of sets

PLEASE HELP FAST!!


Why is this considered a theory instead of a hypothesis
or a law?
se
O It is a statement of fact about how nature works
instead of an explanation.
o It provides an explanation for many observations and
accepted hypotheses.
o It describes how to test a possible explanation of one
specific relationship.
It has not changed over time even though new
technology has been developed.

Answers

Answer:

C

Explanation:

The ___ is the mostly closely linked with the destruction of worn out cells.

Answers

The lysosome is the mostly closely linked with the destruction of worn out cells.

hii pls help i’ll give brainliest if you give a correct answer

Answers

I’m pretty sure it’s A north to south I’m sorry if I’m wrong

Answer:

East to West

Explanation:

HELP PLEASE ASAP



Which of the following is common between mitosis and
meiosis?
a. Interphase land Interphase ||
b. S Phase of Interphase
C. Crossing Over
d. Tetrad Formation in Prophase

Answers

Answer: i think its B

Which monomer – polymer pair below is mismatched? *
2 points
amino acid-protein
glucose-glycogen
glucose-starch
amino acids-nucleotide

Answers

Answer:

glucose-glycogen

Explanation:

Because extra glucose is converted into glycogen and stored for when it is needed. It is not a polymer pair.

The middle of the DNA ladder is made up of __?__.

Answers

Answer:

The sugar and phosphate group make up the backbone of the DNA double helix, while the bases are located in the middle.

Explanation:

I NEEEEDDD HEELP PLZZZ

Answers

Answer:

1 red, 2 pink, 1 white

Explanation:

RW x RW = 1 RR, 2 RW, 1 WW

I assume that RR is red, RW is pink, and WW is white

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what type of cells carry out cellular respiration

Answers

all living cells must carry out cellular respiration

PLEASE HELP ME

As polar bears' population decrease, it creeps ever close to extinction This decrease in the population is due to loss of habitat (floating sea ice). This loss of habitat is caused by which of the following?
A. oil spills from ocean drill sites
B. human cities and houses being built in their habitats
C. Global warming
D. introduced can toads which are out competing polar bears for food

Answers

C. Global warming


Because of global warming the ice melts away but the polar bears need the icebergs in order to survive, without the icebergs the polar bears will lead to extinction. If global warming continues the ice will continue to melt and the polar bears won’t have any icebergs.

Help with this plz.

Answers

Answer:

just bro easy aquatic answer

Explanation:

hope it helps .

copy and paste .

mark as brainlest.

Answer:

i'd say it's camouflage...?

B. What is the distance between the two troughs?

Answers

The distance between two troughs (or two crests) is the wavelength.

what rock forms by heat and pressure deep underground​

Answers

Answer:

igneous rock ............

A certain dominant gene is located on the X chromosome. A father will transmit the Gene and the resulting condition to:

Answers

His offspring more specifically if he has a daughter since it’s an X chromosome

Fill in the blanks.

There are ___ different amino acids

Answers

Answer:

twenty

Explanation:

Your answer is 20. Have a good day!

T or F _ Cytosine, guanine, thymine and adenine are referred to as phosphates.

T or F DNA is in the shape of a helix.

A nucleotide is made up of a suqar, phosphate and two nitrogen bases.

Replication is performed prior to cell division.

Adenine always pairs with quanine.

Complementary base pairing matches up complementary sugars.

T or F _The sides of the DNA molecule are made up of repeating nitroqen bases and suqars.

The letters that make up the DNA molecule code for qenes.

T or F _ Replication results in two strands of DNA, each of which has half of the oriqinal strand.

T or F Covalent bonds hold nitrogen bases together, forming the rings of the DNA ladder.

Answers

Answer:

f t f t t t f ? t f

Explanation:

Cytosine, guanine, thymine and adenine are NOT referred to as phosphates (they are nitrogen bases), whereas DNA is in the shape of a double helix'.

A nucleotide is made up of sugar, phosphate and a nitrogen base.

The replication is performed after cell division.

Adenine always pairs with thymine, whereas cytosine pairs with guanine.

Complementary base pairing matches up nitrogen bases.

The letters that make up the DNA molecule code for genes.

Replication results in two strands of DNA, each of which has half of the original strand.

Hydrogen bonds hold nitrogen bases together, forming the rings of the DNA ladder.

In conclusion, Cytosine, guanine, thymine and adenine are NOT referred to as phosphates (they are nitrogen bases), whereas DNA is in the shape of a double helix.

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What causes Earth's seasons?

Answers

The tilt of its axis
Other Questions
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