The rate of change of momentum of a body free falling under gravity is equal to its? A. Velocity B. kinetic energy C. power D. weight

Answers

Answer 1

Answer:

weight

Explanation:

this is because of the lighter the object the faster it will be affected


Related Questions

The form of energy associated with the motion, position, or shape of an objects called:.

Answers

Mechanical energy. . An object's mechanical energy is a combination of its potential energy and its kinetic energy.

The probability that a randomly chosen nucleus in a radioactive sample will have decayed in a given time is 96.875%. How many half-lives has the sample experienced?

A. 5

B. 4

C. 6

D. 3

I believe it's 4, but I'm not entirely sure.

Answers

The probability that a randomly chosen nucleus in a radioactive sample will have decayed in a given time is  96.875%. The sample has experienced 5 half lives. The correct option is A.

What is half life?

Half life is the time required for the heavy nucleus or any radioactive material to disintegrate by half its quantity.

After one half life, the probability of decay of any nucleus is given by 50%. = 0.5

After two half lives gone,  probability of decay is 0.5 + 1/2(0.5) = 0.75

After, three half lives gone,  probability of decay is 0.5 + 1/2(0.5) + (1/2)²(0.5) = 0.875

After, four half lives gone,  probability of decay is 0.5 + 1/2(0.5) = 0.875 + (1/2)³(0.5) = 0.9375.

After, five half lives gone,  probability of decay is 0.9375 + (1/2)⁴(0.5) = 0.96875.

Thus, the sample has experienced 5 half lives. The correct option is A.\

Learn more about half life.

https://brainly.com/question/24710827

#SPJ2

How are temperature and molecular motion related?

Answers

Answer:

temperature is essentially the speed of the molecules.

Explanation:

temperature is the kinetic energy of molecules, and kinetic energy is dependent on velocity.

Water vapor is an important greenhouse gas in Earth's atmosphere. The map here shows the average amount of water vapor in a column of atmosphere during one month in 2015.

Based on the data in the map where would you expect temperatures on Earth to be warmest?

• At higher altitudes
• Over the poles
• At the equator.
• Over landmasses​

Answers

Answer:

The answer in C- At the equator

Explanation:

just took the test and got it correct

Based on the data in the map, the temperatures on Earth to be warmest will be at equator. The third option is correct.

What is greenhouse gas?

The gases which get easily trapped inside the glasses and increase the temperature of the atmosphere causing the global warming level to increase overall.

Water vapor is an important greenhouse gas in Earth's atmosphere. The map here shows the average amount of water vapor in a column of atmosphere during one month in 2015.

Based on the data in the map, the temperatures on Earth to be warmest will be at equator.

Thus, third option is correct.

Learn more about greenhouse gas.

https://brainly.com/question/4509458

#SPJ2

When the reflecting wave flips upside-down on a stretched
string, which of the following is correct?
a The stretched string is with a fixed boundary
b The stretched string is with a free boundary
с
The stretched string may have a fixed boundary or
a free.
d The given information is not enough.
e None of the above is correct.

Answers

The reflecting wave flips upside-down on a stretched string when the wave moves from a less dense part of the rope moves toward a boundary that has a higher density. Hence the correct answer is (Option E).

What is a Reflecting Wave?

A reflecting wave is a wave that abruptly changes its propagation direction when it hits the boundary between two media.

An echo is a real-world example of a reflecting wave.

Learn more about Reflecting Waves at:
https://brainly.com/question/64516

A block of mass 3. 0 kg is hung from a spring, causing it to stretch 12 cm at equilibrium, as shown above. The 3. 0 kg block is then replaced by a 4. 0 kg block, and the new block is released from the position shown above, at which the spring is unstretched. How far will the 4. 0 kg block fall before its direction is reversed?.

Answers

Based on the length of the spring and the mass of the block, the distance the 4.0 kg block can fall before a reversal in direction is 32 cm.

How do we arrive at 32cm?

Because energy is conserved, the distance the block can drop can be found as:

Mass x gravity x distance = (1 / 2) x spring constant x distance ²

Spring constant:

= (Mass x gravity)  / distance

= (3 x 9.8) / 12

= 2.45 cm

Distance is:

Mass x gravity x distance = (1 / 2) x spring constant x distance ²

distance = (2 x Mass x gravity) / spring constant

= (2 x 4 x 9.8) / 2.45

= 32 cm

Find out more on spring constants at https://brainly.com/question/1616151.

The opening graph in the video shows the measured relative abundances of elements in the galaxy. What is the 4th most abundant element?.

Answers

Answer: Carbon

Explanation:

The opening graph in the video shows the measured relative abundances of elements in the galaxy. What is the 4th most abundant element? Carbon has the fourth highest dot on the graph, and therefore is the fourth most abundant element.

Answer:

Carbon is the masured relative abundant element.

Why are choir concerts better in performance halls than in gymnasiums?

Please Mention the scientific terms.

Reflection, Refraction, Diffraction, Echo, Constructive Interference, Destructive Interference, Doppler Effect and Longitudional Waves.

Answers

Constructive interference in performance halls and the elimination of echoes are reasons why choir concerts better in performance halls than in gymnasiums.

What is constructive interference?

Constructive interference is a phenomenon which occurs when two waves travelling in same direction and which are in phase add up together to produce a wave of greater amplitude.

Constructive interference occurs in performance halls while destructive interference occurs in gymnasiums.

Also in performance halls, echoes are minimized due to the padded walls and the curtains while echoes which disturb choir concerts occur in gymnasiums.

Therefore, choir concerts better in performance halls than in gymnasiums because of constructive interference in performance halls and the elimination of echoes.

Learn more about constructive interference and echoes at: https://brainly.in/question/2378717

If our planet was twice as far away how would the Earth’s orbit change?

Answers

Answer:

One of the indirect proofs that orbits change is actually in the growth of our own teeth when we were children. our teeth are some of the most basic, and primitive

parts of our bodies. They grow on a 9 day cycle, which was an ancient full moon to full moon cycle when the Earth and the Moon were a lot smaller, and closer together, and the co-orbital period was only 9 days, not the 29.5 days that it is currently.

So Given any two " Planets " that co-orbit a common gravitational center, the larger planet will grow larger far faster than the smaller planet, and the larger planet will accelerate the smaller planet to a higher orbit with a longer period, and decelerate itself to a lower orbit with a longer period, and the absolute value of the center to center distance will increase, and the orbital period will increase. The two orbs and their common gravitational center will remain co-linear through out the gradual growing and changing process.

This is an important process for the enlargement of the solar system as time passes, and an important process for larger galaxies as they attract and merge with smaller galaxies.

All of the planets grow larger at an accelerating rate, and thus systems spiral outward concentrating mass into larger and fewer galaxies, solar systems, and planet - moon systems.

Distance meters Time (seconds) Trial Tria 2 Trials Average 3 053 059 0.52 055 6 106 719 104 Uning the values trom the data table calculate the speed of the object that traveled 3 meters Round your value to two decimal places past the Decimal 5 4545 m/s 0.18 m/s 0183333 ms 545ms​

Answers

Jsisisusuagahannananana this is worth 22 points g that’s crazy 25

Answer:

I'm pretty sure it's the last one, or D.

Explanation:

I did the math in my head so forgive me if I'm wrong :)

Tomas lives in Brazil. When he looks up to the night sky, he always sees the same side of the Moon. Why does this happen?
A
The Moon orbits the Earth in the same length of time that it takes to make one revolution on its axis.
B
The Moon is stationary on its axis as it orbits the Earth.
C
The Moon orbits the Earth in the same length of time that it takes for the Earth to orbit the Sun.
D
The Moon is stationary in the sky in relation to Earth.

Answers

Answer: The answer is C. Hope it helps!!, and if you get it wrong it's my fault

Which is an example of current electricity

Answers

it would be d as your answer

White light is sent through glass prism. Which color is refracted the most?.

Answers

When white light passes through a prism, violet is the color that is refracted the most.

Viewed from a distance, how would a flashing red light appear as it fell into a black hole?.

Answers

Explanation:

Light rays that pass close to the black hole get caught and cannot escape. so what ends up happening to the light is that it starts bending due to the strong gravitational force of the black hole.

What is average velocity?

Answers

Answer:

amount of displacement divided by the time the displacement occurs

Explanation:

Best answer of those given

A liquid exerts the pressure of 5000 Pascal at the bottom of vessel.If the depth of liquid is 2 m,find the density of the given liquid. (g=10 metre per square)



Please help!​

Answers

Answer:

250

Explanation:

pressure = depth x density of liquid x g

5000 = 2 x density x 10

density = 250

Define the following words:
Phylogenetic:
Bifurcation:
Taxonomy:
Prokaryote:
Eukaryote:
Virus:
Classification:
Biotype:

(brainliest if you use your own words) please hurry!!!

Answers

Taxonomy: the techniques of describing,naming and classifying living organisms on the basis of similarities and dissimilarities

Prokaryote: prokaryotes were the earliest living organisms which are unicellular having a primitive nucleus i.e they don’t have a true nucleus

Virus: viruses are non cellular parasitic entities. They cannot live or reproduce outside of living cells since they lack machinery to do so by themselves. They range in size from 20nm to 250nm

Roughly how long does it take for the sun's light to reach Earth - 8 minutes, 8 hours or 8 days?

Answers

it takes it 8 days for the light to travel

Answer:

8 minutes

Explanation:

Light travels at a speed of 299,792

kilometers per second; 186,287 miles

per second. It takes 499.0 second

for light to travel from the Sun to the

Earth, a distance celled 1 Astronomical

Unit.

A solenoid with an iron core is 25 cm long and is wrapped with 100 turns of wire. When the current through the solenoid is 10 A, the magnetic field inside it is 2.0 T. For this current, what is the permeability of the iron

Answers

Answer:

A solenoid is a long coil of wire wrapped in many turns. When a current passes through it, it creates a nearly uniform magnetic field inside. Solenoids can convert electric current to mechanical action, and so are very commonly used as switches. The magnetic field within a solenoid depends upon the current and density of turns.

Explanation:

hope this helped its pretty long

. Scientific question: Why does a dog circle its bed before lying down?
Write the steps you would take to explore this question using the scientific method.

Answers

Answer:

In the scientific method first of all is you need to identify the problem, the problem to your question is why does the dog circle its bed before lying down. Second is the observation to gather some data, you need to observe the dog if what could be the possibility the the dog may do that action. The third is the per hypothesis, you need to came up with an idea why does the dog do such and action for example the needs to find a correct spot to make itself comfortable and lastly the hypothesis, this should answer to your question or your problem. So my hypothesis is that dogs are one of the animals that are those difficult to find a place to sleep and some of that kind of animals are cat, before they lay on their bed, they have to circle to find a spot that could fit its body to be more comfortable when the dog sleep

Explanation:

Hope that helps you with your question.

There are pros and cons to both e-readers and paper books. Do you think the pros outweigh the cons more for modern electronic readers, or for good old-fashioned paper books? Maybe it simply comes down to personal preferences as opposed to rational decision-making. Which do you prefer? Which do you think is better? Explain.

Answers

E-books have made it easier to carry books across long distances and have made learning  simpler.

E-books or paper books?

In the twenty first century, we have seen a sudden budding of technology  such as have never been. Part of this mordern technology is the introduction of electronic books in several formats such as pdf, epub etc.

These books can be read on computers, ipads, laptops, sart phone etc having the appropriate reader software. These ebooks unlike the paper books have eased the inconvienence associated with carrying  paper books which are often bulky from place to place.

Several ebooks could be housed at once in a  smartphone and carried in the pocket. This has made learning easier than ever. Thus, ebooks are better than paper books.

Learn more about ebooks: https://brainly.com/question/21690258

Seth and Diana were asked to be the leaders for a game of tag during recess at school. Seth and Diana can ensure that all interested students get a chance to participate equally regardless of ability to run fast by having the: Tagged players sit out until the next game starts Tagged players perform a fitness activity then return to the game Two youngest students be the taggers Two fastest students be the taggers

Answers

Answer:

B

Explanation:

did this yesterday with my friend

Answer: Tagged players perform a fitness activity

Explanation: Proof of validity is shown below.

When an object is lifted 12 meters off the ground, it gains a certain amount of potential energy. If the same object is lifted 24 meters off the ground, its potential energy is
A.
the same.
B.
three times as much.
C.
twice as much.
D.
four times as much.

Answers

I think the answer is twice as much

Micah, a young adult, reads a diary he kept in high school, laughing at his former self. He wonders how he could
have thought he was so deeply in love that he'd found his soulmate at the age of 13. What part of Micah's brain
has developed since he was 13 to give him this perspective?

Answers

Hypothalamus is the region of brain is the control centre of love and also make the limbic system of our body.

What is hypothalamus?

The hypothalamus is the region of the brain that makes up the limbic system and is considered as the control centre of love. It gathers the various stimuli felt by the body such as smells, touches, sounds and formed the physical response to the emotions associated with those stimuli.

So we can conclude that hypothalamus is the region of brain is the control centre of love.

Learn more about love here: https://brainly.com/question/931164

Define 1 joule work done.​

Answers

Answer:

1 J is the amount of work done by a force of 1 N on an object that displaces it through a distance of 1 m in the direction of the applied force.

Explanation:

What is the volume of one rubber ball? round to the nearest hundredth of a centimeter. cm3 if the price of the rubber needed to produce a ball is $0.0045/cm3, what is the cost of producing one ball? round to the nearest cent. $ if the company sells a ball for $0.50, how much profit will it make on each ball? $

Answers

The volume of one rubber ball and the cost of producing one ball and the profit will it make on each ball will be 20.58 cm³, $0.09261, and $0.40739 respectively.

What exactly is geometry?

It is concerned with the geometry, region, and density of various 2D and 3D shapes.

The given data in the problem is;

r is the Rubber balls = 1.7 cm

V is the volume

C is the cost of production

P is the profit

The volume of the rubber ball is  found as;

[tex]\rm v= \frac{4}{3} \pi r^3 \\\\ \rm v= \frac{4}{3} \times 3.14 (4.913)^3 \\\\ \rm v= 20.58 cm^3[/tex]

If the price of the rubber required to make a ball is $0.0045/cm3, the ball's production cost will be $0.0045/cm3.

The cost of a ball is the multiplication of the cost of one ball and the selling price of the ball;

C = 0.0045 x 20.58

C = $0.09261

P is the profit gained and profit is the subtraction of the selling price and cost price.

P = S.P.-C.P.

P=0.5 - 0.09261

P = $0.40739

Hence the volume of one rubber ball and the cost of producing one ball and the profit will it make on each ball will be 20.58 cm³, $0.09261, and $0.40739 respectively.

To learn more about the geometry refer to the link;

brainly.com/question/7558603

Answer:  

1: C

2: C

3: A

Explanation: just did it

State Newton's law of motion.

Answers

Answer:

In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration. In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.

Explanation:

Hey there!

☆ There are Newton's three laws of motion.

☆ [tex] 1^{st}[/tex] Law:

An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

☆ [tex]2^{nd}[/tex] Law:

The rate of change of momentum of a body is directly proportional to the applied force,and takes place in the direction in which the force acts.[tex] \mathsf \pink{f = m \times a}[/tex]

☆ [tex]3^{rd}[/tex] Law:

For every action there is an equal and opposite reaction.

Hope it helps

1.0 A weightlifter picks up a barbell.

1.1 .10. Which type of energy is stored in the barbell when it is held above the weightlifter's head?
[1 mark]
Put an X in one box only.
11
Chemical potential
Elastic potential
Gravitational potential
Kinetic

Answers

The type of energy is stored in the barbell when it is held above the weightlifter's head is gravitational potential energy.

What is potential energy?

This is the type of energy possessed by an object due to its position above te ground level.

Potential energy of an object is given by the following formulas;

P.E = mgh

where;

m is mass of the objecth is the height above the groundg is gravity

Thus, the type of energy is stored in the barbell when it is held above the weightlifter's head is gravitational potential energy.

Learn more about Gravitational potential here: https://brainly.com/question/15849218

An electron (me = 9.1 x 10-31 kg) traveling south at a constant speed of 5.0 x 106 m/s enters a
region where the downward component of earth's magnetic field is 3.5 x 10-5 T. What is the
magnitude and direction of the acceleration of the electron at this instant?

Answers

Answer:

F = Q V X B

V X B = south X downard = East - deflection is West

Since Q is negative the deflection = West

a = F / m = Q V B / m

a = 1.6E-19 * 5*E6 * 3.5E-5 / 9.1E-31

a = 1.6 * 5 * 3.5 / 9.1 * 10^13 m/s^2 = 3.1 * 10^13 m/s^2

Levi observed properties of three different waves and recorded observations about each one in his chart. which statement is best supported by the table? wave w and y are light waves. wave x is a sound wave. wave w is a light wave. waves x and y are sound waves. waves y is a sound wave. waves x and w are light waves. wave w is a sound wave. waves x and y are light waves.

Answers

For the three different waves observed and recorded, Waves X and Y are light waves. This is further explained below.

What is a wave?

Generally, A wave is simply defined as a disturbance that propagates through a medium from one point to another.

In conclusion,  Wave Z is impossible to classify, Waves X and Y are light waves, and Wave W is a sound wave.

Read more about Wave

https://brainly.com/question/23271222

Answer:

D

Explanation:

Other Questions
factor with GCF3x^2y + 6xy - 9xy^2 select all the expressions that equal 3 to the power of 4.A.7B.4 to the power of 3C.12D.81E.64F.9 to the power of 2 55=5. what r the value of a? At what age did Lavoisier die? What is the answer to the question 6/7 + 3/4 Boris is studying to become a nursing assistant. His class is taking place at the hospital with a registered nurse. Shetakes the class through the process of getting vital signs of a patient. The RN then breaks the class into four groupsand assigns each group a patient. The groups then practice taking the vital signs of the patient.Which describes the type of learning that happened in Boris's class?O The RN teaching the class about vital signs was formal learning while practicing taking vital signs was informallearning.O The RN teaching the class about vital signs was informal learning while practicing taking vital signs was formallearning.O The Reaching the class about vital signs and students practicing taking vital signs were both formal learning.O The RN teaching the class about vital signs and students practicing taking vital signs were both informal learning A supporter of free-market policies in the late twentieth century would have most likely explained that the policy argued for in the passage did not sufficiently. possible cause of water hammering? what's the sum of 3/8 and 1/16? a. 1/6 b. 7/16 c. 4/24 d. 1/4 Which of the following will you see in acredit card monthly statement?A. The interest charged for each type of service used.B. The deductible for the interest charged to the card.C. The annual financial plan for the year.D. The amount of money you may get in the future. 4. There are 130 students in grade one, 210 students in grade two and 290 students in grade three in a primaryschool, and so on in an arithmetic sequence. What's the total amount of students in the primary school? (PrimarySchool has 6 grades) find the area of a rectangle that measures 2 2/3 in. by 36 1/2 in. Callie stopped for lunch when she was shopping at the mall. She bought two pieces of pizza for $2.95 each and a soda for $2.25. About how much did she spend? I have to round the numbers. HELP PLS Which other countries besides Germany felt the treaty of versailles was unfair? Find the equation of the line thatis perpendicular to y = 4x + 5 andcontains the point (8,-4). What is Gatsby saying about Daisy? Which is a personal reason for using tobacco? weight losspeer pressurefamily usecelebrity use For a 12-month period, the numbers of inches of snow per month in Chicagowere:11, 10, 6, 1,0,0,0,0,0, 1, 2, 9What is the range of the data values?O A. 6.B. 1C. 11D. 10 PLS HELP - FREE BRAINLIEST: Suppose 4 < a < 5 and 2 < b < 4. Find all possible values of each expression. Dna strands are antiparallel. Which of the following statements defines antiparallel?.