A helicopter takes off from the ground and rises vertically. It then hovers at a constant height above the ground. Which sequence of energy changes takes place during the gain in height?

Answers

Answer 1

Answer:

First the fuel in the engine gives chemical energy during burning. That chemical energy then converts to kinetic energy if the rotor of blades of the helicopter. Then kinetic energy converts in gravitational potential energy as it gains height.


Related Questions

If an object has two forces acting on it, how can the net force equal 0?

Answers

Answer:

Check explanation.

Explanation:

Net force is essentially the sum of the forces enacting upon an object. One example of net force is gravity and normal force. It is commonly accepted that every object has a force acting upon it, even if it is stationary. To give an example, the weight of an object has a force upon the earth but the earth pushes back, essentially meaning that the object will not sink.

Which of the following might be the material list for an experiment?
A data tables and graphs
B.meters, liters, and kilograms
C plastic containers, soil, water, thermometers, and plants
D temperature, light, and time​

Answers

Answer:

C

Explanation:

A tennis ball, 0.384 kg, is accelerated at a rate of 187 m/s2 when hit by a professional tennis player. What force does the player's tennis racket exert on the ball?

Answers

Answer:

The answer is 71.81 N

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 0.384 × 187 = 71.808

We have the final answer as

71.81 N

Hope this helps you

Why does the earth orbit the sun instead of the moon? *

Answers

Newton realized that the reason the planets orbit the Sun is related to why objects fall to Earth when we drop them. The Sun's gravity pulls on the planets, just as Earth's gravity pulls down anything that is not held up by some other force and keeps you and me on the ground.

is the universe infinite

Answers

Answer:

The observable universe is still huge, but it has limits. because it's most likely like an plane all round.

Explanation:

Answer:

Yes

Explanation:

the universe is constanlty expanding at a rate of 74.3 plus or minus 2.1 kilometers (46.2 plus or minus 1.3 miles) per second per megaparsec (a megaparsec being about 3 million light-years).

What are five atomic models that have been proposed over time ?

Answers

Air, water , atomic acid , and pocket rocket

An object that has 0 acceleration will never be in motion

Answers

Answer:

False

Explanation:


Which of the following is a diatomic molecule?
Cl2
NO
O3
NaCl

Answers

Answer:

Diatomic molecules are composed of only two atoms, of either the same or different chemical elements. Common diatomic molecules include hydrogen (H2), nitrogen (N2), oxygen (O2), and carbon monoxide (CO).

Explanation:

Hello I have the same question but I couldnt figure it out but i looked it up and this is what found it seemed to help me alot.

A volleyball dug out by the opponent popped straight up into the air. It takes 2.05 seconds for the ball to reach its peak. Determine the height to which the ball flies. So far, I got the givens of t=2.05 seconds x=? a=9.8 meter per seconds squared final velocity=0 m/s they might be wrong though so help please!!!!

Answers

Answer:

The height to which the ball flies is 86.6 m.

Explanation:

Given that,

Time = 2.05 sec

Acceleration = 9.8 m/s²

We need to calculate the initial velocity of volleyball

Using equation of motion

[tex]v=u-at[/tex]

Where, u = initial velocity

a = acceleration

t = time

Put the value into the formula

[tex]0=u-9.8\times(2.05)^2[/tex]

[tex]u=41.2\ m/s[/tex]

We need to calculate the height of the the ball

Using equation of motion

[tex]v^2=u^2-2ah[/tex]

Put the value into the formula

[tex]0=(41.2)^2-2\times9.8\times h[/tex]

[tex]h=\dfrac{(41.2)^2}{2\times9.8}[/tex]

[tex]h=86.6\ m[/tex]

Hence, The height to which the ball flies is 86.6 m.

why is epidermis important for plants​

Answers

Answer:

Epidermis, in botany, outermost, protoderm-derived layer of cells covering the stem, root, leaf, flower, fruit, and seed parts of a plant. The epidermis and its waxy cuticle provide a protective barrier against mechanical injury, water loss, and infection.

hope this helps

which statements describes a chemical property

Answers

Answer:

a chemical property can be observed without changing the identity of the substance.

Explanation:

a physical property is a characteristic that can be observed without changing the substance into another substance. The object reacts with acid to form water.

When a racer gets thrown out of a race they gets this?

Answers

What do you mean sorry confused

Answer:

A black flag

Explanation:

An ice skater weighs 500 [N]. He is coasting to the right at a constant velocity of 2 [m/s]. Assume
the ice is frictionless.
What is the net force on the skater?

Answers

Answer:

The net force on the skater is zero. ([tex]F_{net} = 0\,N[/tex])

Explanation:

According to Newton's First Law, an object is at equilibrium when either it is at rest or moves at constant velocity, which means a net force of zero. Based on the given statement, there are no external forces acting on skate and, therefore, the net force on the skater is zero. ([tex]F_{net} = 0\,N[/tex])

write the nature of charges on a glass rod and Silk cloth when they are rubbed with each other​

Answers

Answer:

thik kamm Kar aur TEJ mat ban

If a mass of 10 kg is accelerated at a rate of 2 m/s^2, what force must be
applied?

Answers

Answer:

20N

Explanation:

10kg=mass 2m/s²= Acceleration

Force=?

the equation is;

Force(N)=Mass(kg) × Acceleration(m/s²)

10×2=20

Why do mass numbers have a trailing decimal? use the following words describe for credit isotopes protons neutrons electrons in carbon 13



HELP ME

Answers

Answer:a number without a decimal are generally not significant. Isotopes are atoms of same element which have the same atomic number but different number of neutrons. Isotopes of elements are represented in the following way: In an atom, the number of protons is equal to its atomic number.. An atom of an element is neutral in nature so atom contains the same number of protons and electrons.

Explanation:

non-example of Newton's third law of motion

Answers

Answer:

Unbalanced forces

Explanation:

Olivia and Caitlyn want to know whether the wind affects how far a football will travel. They have one student go outside to the football field when it is not windy and throw the football 30 times. They measure how far the ball goes using a meter stick. On a windy day, they have the same student go to the football field and throw the football 30 times. Again, they measure how far the ball goes using the same meter stick. What is the Independent Variable?

Answers

Answer:

presence or absence of wind

Explanation:

When establishing a relationship between two variables the effect one variable has on the other is studied. The variable that changes with respect to the other is the dependent variable while the other variable is called the independent variable.

Here the distance the football covers in the presence and absence of wind is studied. So, the presence or absence of wind is the independent variable.

can fertilizer grow plants (physics )

Answers

Answer:

A fertilizer or fertiliser is any material of natural or synthetic origin that is applied to soil or to plant tissues to supply one or more plant nutrients essential to the growth of plants. Many sources of fertilizer exist, both natural and industrially produced.

Explanation:

Caregivers who are observed to be abusive or neglectful have been associated with the __________ type of attachment. A. secure B. disorganized-disoriented C. insecure-avoidant D. anxious-ambivalent

Answers

Answer:

B

Explanation:

The disorganized-disoriented kind of attachment has been linked to caregivers who have been observed to be violent or neglectful.

Therefore, option B. is correct.

Who are caregivers?

A caregiver seems to be a salaried member of someone's social network who assists them with everyday routines. Because they lack formal training, they are frequently referred to as informal caregivers.

The disorganized-disoriented kind of attachment has been linked to caregivers who have been observed to be violent or neglectful.

Therefore, option B. is correct.

Find out more information about caregivers here:

https://brainly.com/question/711805?referrer=searchResults

is Babe Ruth?
And can you give me 3-5 sentences about her

Answers

1. Ruth first gained fame as a pitcher.

Although best remembered for swatting a prodigious 714 home runs and slugging .690, which remains a major-league record, Ruth was one of baseball’s most dominant left-handed pitchers in the 1910s. He won 89 games in six seasons with the Boston Red Sox, including 24 in 1917, and helped the team win three World Series titles. Ruth only pitched five games for the New York Yankees as his position switched to outfielder after being sold by Boston before the 1920 season.

2. He did not retire as a New York Yankee.

Ruth’s major-league career not only started in Boston, it ended there as well, but not with the Red Sox. Discarded by the Yankees as his performance waned, Ruth signed with the National League’s Boston Braves in 1935 in the hopes of becoming the team’s manager the following season. When it became clear that his skills had deteriorated and the promise would not be kept, Ruth ended his 22-year career after just 28 games in a Braves uniform.

3. Ruth was not a unanimous choice for the Baseball Hall of Fame.

A year after his retirement, Ruth was among the five initial inductees elected to the new National Baseball Hall of Fame under construction in Cooperstown, New York. In spite of Ruth’s amazing career statistics, 11 of the 226 voters left him off their ballots, and the “Sultan of Swat” trailed Ty Cobb as the leading vote-getter. Ruth’s plaque in Cooperstown refers to him as baseball’s “greatest drawing card,” and proving the point, the Hall of Fame last month opened a new exhibit on Ruth to coincide with the centennial of his first big-league season.

Explanation:

Answer:

He began his career as a pitcher: Ruth was both a left-handed pitcher and left-handed batter.

His father died in a fight with a family member

Ruth played for the Boston Red Sox (1914-1919), the New York Yankees (1920-1934) and briefly the Boston Braves (1935).

Explanation:

also babe ruth is a guy-

Which describes an object in projectile motion?

A. Gravity acts to push the object sideways.
B. The object moves in a straight path.
C. The forward velocity of the object is 0 m/s.
D. The object’s inertia carries it forward.

Answers

D the objects inertia carries it forward
your answer is D the object carries it forward

Which characteristics can be determined given only the information above? 1.) luster 2.) streak 3.) crystal size 4.) crystal structure PLEASE HELP ME!!!!!!

SCIENCE

Answers

Answer:Luster aka (A)

Explanation:Because luster is something you learned in science.

IF IT HELPED CAN I HAVE BRAINLIEST PLS!! AND GOOD LUCK <3

Dolphins and Whales use .................. to find something to eat or find their family members even if it is dark or the water is not clear. *

Echolocation

sight

smell

Answers

Answer:

Echolocation

- sound waves are being used and once they hit an object they are bounced back (that's how an echo is created)

- it's useful since it can tell you where something is

Echolocation is correct

stored energy and the energy of positions are ________________ energy

Answers

Answer:

Gravitational Energy

Which is a trend for marriage and having children today as compared to past generations?
A.
More people are waiting to cohabitate until after marriage and not having children.
B.
More people are getting married overall and having children immediately.
C.
More people are waiting to get married and typically feel regret after having children.
D.
More people are marrying later and having children later in life.

Answers

Answer:

D

Explanation:

Answer:

itssss D

Explanation:

A ball is thrown up in the air for 1 second and has a displacement of 5 m.
Assume the ball is under the influence of gravity. a = -10 m/s. Determine the
initial velocity of the ball.
d=yt+at

Answers

The ball drop 2kms in the air

Which statement accurately describes the motion of the objects in the ticker tape above?


Both objects are speeding up at a constant rate.

One object speeds up before it slows to a stop.

Both objects speed up before stopping.

One object speeds up at a constant rate until it stops.

Answers

Answer:

B

Explanation:

One object speeds up before it slows to a stop.

When reading this type of graph, we know that when the points are far apart, then the object is definitely moving quickly. Also again, we know that when the points are besides each other, then we say that the object is moving slow. When the distance that is between the points are changed, the velocity of the object subsequently changes too, and therefore, we say that the object is accelerated. When there are lots of points in one location, we will see that the object is not moving.

This then translates into that

The object(s) at the top begins to slow, eventually, it increases in its speed, going forward, it slows down again, before it finally halts. The object at the bottom on the other hand, starts fast, before slowing down.

then:

"One object speeds up before it slows to a stop "

What is the mass of 23 mL of a liquid that has a density of 1.5 g/mL?

Answers

Answer:

The answer is 34.5 g

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question

volume = 23 mL

density = 1.5 g/mL

We have

mass = 23 × 1.5

We have the final answer as

34.5 g

Hope this helps you

Ren runs a hamburger stand and needs to clean up a season’s worth of grease buildup on the range hood over his griddle. explain what he should look for in a cleaning product that can handle a layer of grease

Answers

grease cleanerrrrrrr

Answer:

A cleaning product that contains a base.

Explanation:

Ren should use a cleaning product that contains a base. This is because bases readily react with lipids (fats), the kind of compound that makes up grease. A base would break down the grease, forming soap, which would then easily wash away.

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2.) The original price of Airpods is $160.00. Theyare on sale for 15% off. What is the discountAmount James Smith, the president of the club; invited the members to a party on a bleak, cold and rainy evening. *WHAT IS THE ERRORcomma after bleakcomma after Smithsemi-colon after clubno error what is the number 0.0000 04 in standard form At the end of each month, a company pays its employees. Payroll information below is for January, the first month of the fiscal year. Assume that none of the employees exceeds the Federal unemployment tax maximum salary of $7,000 in January. Salaries $ 1,000,000 Federal and state income taxes withheld 170,000 Federal unemployment tax rate 0.80 % State unemployment tax rate (after FUTA deduction) 5.40 % Social Security (FICA) tax rate 7.65 % Required:Record salaries expense and payroll tax expense for the January pay period. which type of Healthcare facility is costly a private b public Alan drive 210 miles using 9 gallons of gas. At this rate,how many gallons of gas would he need to drive 413 miles? WILL MARK BRAINLIEST! PLEASE HURRY! I AM TIMED!!!!!!!!!!!1Read the passage.Queen Hatshepsut ruled Egypt from 14731458 BCE. She took over as pharaoh, saying that she was related to the gods. She also wore mens clothing to make herself appear as strong as a man. She controlled the worlds greatest army, created many monuments, and started trade with other countries.Which piece of evidence from the passage supports the reason "Queen Hatshepsuts actions made her a powerful pharaoh?She ruled Egypt from 14731458 BCE.She said she was related to the gods.She wore mens clothing to appear strong.She controlled a great army and started trade. Why is it important to review all procedures in using standard measuring devices? a. To ensure proper use of standard measuring devices b. To enable a food processor to use the appropriate measuring device c. To enable a food processor to work systematically and accurately d. All of these. plss answer WILL MARK BRAINLYEST What was a religious goal of the Crusades? to reunite the Eastern Orthodox and Roman Catholic Churches to retake control of the Holy Land to expand the Byzantine Empire to make it safer for Christians and Muslims to visit the Holy Land Solve the following rational equation for x+2/3 2x-4/2 The Qur'an is the central religious text in Islam. Muslims say it was written by God, who thenspoke the words to Muhammad. The Qur'an is the primary source of Islamic law, the Sharia.The Sharia contains the rules by which a Muslim society should function.12. How are the Qur'an and the Sharia related? What is one central idea in Martin Luther King Jr.'s "I Have A Dream" speech?Violence will result if things do not change.The past can never be changed.There are fundamental differences between the races.All men are brothers. Shelly and Terrence completed a different number of tasks in a game. Shelly earned 90 points on each task. Terrence's total points were 20 less than Shelly's total. The expression below shows Terrence's total points in the game:90x 20What does the factor x of the first term of the expression represent? what is greater 0 or 2x-6? Behaving in an acceptable manner within a workplace environment is referred to as havingrestraintworkplace etiquettepatienceexperience in what ways do gods interact with humans Select the sets that are not functions.O E = ((6. 2). (7. 3). (6, -1). (5. 4)]O A = {(1, 2), (2, 3), (3, 4). (4. 5)}O C = [(-1, 3), (0.3), (1, 3), (2, 3)}OB = {(1, 2), (2, 1), (3, 0), (4, -1)]OD = {(1, 1), (1, 2), (1, 3), (1. 4)} Order an acute angle, obtuse angle, a straight angle, and a right angle in order from least to greatest measure 1. You are conducting a survey of the people in the United States to find out how popular racket sports (tennis, badminton, racquetball, etc.) are. You randomly choose people to call and make 1,000 calls to people across the country. In this study, what is the statistics term for the people you called? A. Both the people of the U.S. and the people you call are populations B. The people of the U.S. are the population and the people you called are the sample C. The people of the U.S. are the sample and the people you called are the population D. Both the people of the U.S. and the people you called are samples A swot analysis plays an important role in the marketing plan