which statement can best describe the energy transformations that occur when a pendulum swings back and forth?
a. gravitational energy is converted to spring energy and back.
b. gravitational energy is converted to kinetic energy and back
c. kinetic energy is converted to spring energy and back
d. none of the above.​

Answers

Answer 1

Answer:

I think it is C, I'm not for sure.


Related Questions

One example of angular momentum is someone (like Bill Nye, the Science Guy) on a rotating platform. In a regular year we would have done this in lab ourselves, but since we can't - have a video instead. Assume for now we are talking about when he has his arms pulled in towards his torso and not stretched out. Bill Nye has a mass of 84.0 kg, a height of 1.50 m and a radius of 16.0 cm. He is spinning at a rate of 5.00 rpm (revolutions / minute) by the end of the video. What is his angular momentum based on these numbers

Answers

Answer:

‭0.563 kg-m²/s

Explanation:

Bill Nye's angular momentum L = Iω where I = rotational inertia = 1/2MR² (since we are considering him to be cylinder with his axis of rotation from is top to bottom- that is vertical through his height) where M = his mass = 84.0 kg and R = his radius = 16.0 cm = 0.16 m and ω = angular speed = 5.00 rpm = 5.00 × 2π/60 = π/6 rad/s = 0.524 rad/s

L = Iω

L = 1/2MR²ω

Substituting the values of the variables into the equation, we have

L = 1/2MR²ω

L = 1/2 × 84.0 kg × (0.16 m)² × 0.524 rad/s

L = 1/2 × 84.0 kg × ‭0.0256‬ m² × 0.524 rad/s

L = 1/2 × ‭1.12681 kg-m²rad/s

L = ‭0.5634 kg-m²rad/s

L ≅ ‭0.563 kg-m²/s

How are nuclear reactions used to meet the world’s energy needs?

Both fusion and fission are used to generate electricity, but more fission reactors than fusion reactors are in use.
Fission reactors are used to generate electricity, but fusion is not yet practical enough to be used.
Both fusion and fission are used to generate electricity, but more fusion reactors than fission reactors are in use.
Fusion reactors are used to generate electricity, but fission is not yet practical enough to be used.

Answers

Answer:

Fission reactors are used to generate electricity, but fusion is not yet practical enough to be used

Explanation:

The nuclear fission process a nucleus of a 235U heavy atom is bombarded with neutrons and disintegrates into two smaller nuclei, releasing some neutrons and energy, which can be used to generate electricity.

In the process of nuclear fusion the union of light nuclear produces heavier nuclei, this process is still in the experimental phase and there are no commercial reactors for the production of electricity.

Checking the different statements is correct :

Fission reactors are used to generate electricity, but fusion is not yet practical enough to be used

Nuclear fission reactors are used to generate electricity, but fusion is not yet practical enough to be used.

What are nuclear reactions?

Nuclear reactions are reactions which involves changes in the nucleus of atoms which produces large amounts of energy known as nuclear energy.

The two types of nuclear reactions are:

Nuclear fusion andNuclear fission

Nuclear fission reactors are used to generate electricity, but fusion is not yet practical enough to be used.

Therefore, nuclear reactions produce energy by means of fission reactions.

Learn more about nuclear reactions at: https://brainly.com/question/984564

#SPJ3

A particle cannot generally be localized to distances much smaller than its de Broglie wavelength. This means that a slow neutron appears to be larger to a target particle than does a fast neutron, in the sense that the slow neutron will probably be found over a large volume of space. For a thermal neutron at room temperature (300 K), find (a) the linear momentum and (b) the de Broglie wavelength. Compare this effective neutron size with both nuclear and atomic dimensions.

Answers

Answer:

a)   p = 1.381 10⁻²⁹ kg m / s, b)  λ = 4.80 10⁻⁵ m,

c)  λ/a₀ = 9.6 10⁴ = 10⁵,   λ/aₙ = 4.80 10⁹

Explanation:

a) as the neutral goes at speeds much lower than the speed of light we can use the classical relationships, as the neutral all the thermal energy is the energy of the neutron

           E = p c

           K T = pc

           p = k T / c

           p = [tex]\frac{ 1.381 \ 10^{-23} \ 300}{3 \ 10^8}[/tex]

           p = 1.381 10⁻²⁹ kg m / s

b) the expression for the de Broglie wavelength

          p = h / λ

          λ = h / p

          λ =[tex]\frac{ 6.63 \ 10^{-34} }{1.381 \ 10^{-29}}[/tex]

          λ = 4.80 10⁻⁵ m

c) let's compare this size with the size of atoms a₀ = 0.5 10⁻⁹ m

         λ/a₀ = [tex]\frac{ 4.80 \ 10^{-5} }{0.5 \ 10^{-9}}[/tex]

         λ/a₀ = 9.6 10⁴ = 10⁵

c) let's compare with the atomic nucleus size aₙ = 10⁻¹⁴ m

          λ/aₙ = [tex]\frac{4.80 \ 10^{-5} }{10^{-14} }[/tex]

          λ/aₙ = 4.80 10⁹

what type of image does
a dilated and a Constricted
pupil produce?

Answers

Answer:blue

Explanation:

I read it

Why don’t the northern and Southern Hemisphere experience summer at the same time?

Answers

Answer:

It is because of the tilt of the earth.

Explanation:

the earth is tilted at 23.5 degrees. this makes it so that either the northern or southern hemisphere will be exposed to more rays from the sun. In the areas that are getting more rays from the sun, it gets warmer.  Think about it like this, because the earth is tilted, part of it is more in the shade and part of it is more in the light. And its colder in the shade, so thats why seasons happen and why they dont happen at the same time.

What is not the ideal location for a radioactive waste storage facility?

A.
in an area that already has a lot of background radiation

B.
in an area that has few earthquakes

C.
far away from ground water

D.
in an area that is unpopulated with people

Answers

Answer:

D

Explanation:


What is the mass of a dog house on Jupiter if the house weighs 1,040 N and the acceleration due to gravity on Jupiter is 26 m/s??
Your answer:
A. 1.040 kg
B. 0.65 kg
C. 40 kg
D. 1.5 kg

Answers

Answer:

40kg

Explanation:

1040/26=40

Application question: In Lancaster county, Pennsylvania, it is common for members of the Amish community to use windmills to pump water from underground to fill a tank for drinking water. The wind causes the turbine blades to spin, rotating a shaft, which is transferred through some gears to operate a pump, which pumps water up from deep below the ground to fill an above ground tank. Identify the energy conversions happening at each step below.
Wind blows______causing the turbine to turn, rotating shaft works pump_____energy.
Motion of water moving up from well______energy.
Water in tank which is positioned 5 feet above the ground level______potential energy.

Answers

Answer:

Wind blows__wind energy ____causing the turbine to turn, rotating shaft works pump__mechanical___energy.

Motion of water moving up from well___kinetic energy___energy.

Water in tank which is positioned 5 feet above the ground level______potential energy

Explanation:

Wind has in it wind energy which is then used to rotate the turbine shaft which is a form of mechanical work and hence possess mechanical energy

Moving water posses kinetic energy and when this water is kept at some height it possess potential energy

Explain the meaning of the constant of proportionality ​

Answers

Answer:

The constant of proportionality is the ratio between two directly proportional quantities. Two quantities are directly proportional when they increase and decrease at the same rate. The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other.

Explanation:

fule cells have been developed that can generate a large amount of energy. for example, a hydrogen fuel cell works by combining hydrogen and oxogen gas to produce water and electrical energy. if a fuel cell can generate 10.0 kilowatts of power and the current is 15.8 amps, what is the voltage of the electricity?​

Answers

Answer:

Where are fuel cells used?

Fuel cells are used for primary and backup power for commercial, industrial and residential buildings and in remote or inaccessible areas. They are also used to power fuel cell vehicles, including forklifts, automobiles, buses, boats, motorcycles and submarines

Explanation:

Kilowatts should be converted to watts. Simply just move the decimal place to the right three times.
10,000 W / 15.8 A = V
632.9, or 633.
Hope this helps!

What happens is a series circuit when you increase the number of bulbs?

Answers

The bulbs will produce lesser light than their capacity, In short they will be dimmer because the the energy will get divided in the number of bulbs.

A rabbit dashes across a field in a zig-zag pattern trying to outrun a fox. If the rabbit’s average is speed is 9.8 m/s it reaches the hole in 8.5 s what is the total distance it ran?

Answers

Answer:

83.3 m

Explanation:

From the question,

Applying on of the formula of velocity

V = d/t.................. Equation 1

Where V = average velocity, d = distance, t = time.

make d the subject of the equation

d = V×t................. Equation 2

Given: V = 9.8 m/s, t = 8.5 s

Substitute these values into equation 2

d = 9.8×8.5

d = 83.3 m

Hence the total distance covered by the rabbit is 83.3 m

what produces the distinctive flame color of different substances when they are ignited?

Answers

Answer:

Electrons in different metals

Explanation:

When you heat an atom, some of its electrons are "excited* to higher energy levels. When an electron drops from one level to a lower energy level, it emits a quantum of energy.  The different mix of energy differences for each atom produces different colours. Each metal gives a characteristic flame emission spectrum.

Why does Marx’s workers’ paradise resolve the problems of capitalism?

A. Everything is free, and no one has to work.
B. Workers are divided into three classes, much like in Plato’s ideas.
C. There is no currency in the paradise so no economic problems.
D. People work for their own good instead of a factory owner’s.

Answers

we need the story or article

1. A group of students were trying to find the greatest
rebounded height of a rubber ball dropped on a basketball
court. They dropped from 3 different heights. The chart
below has their data.
26 cm
Drop Height Chart
Trials Drop height Rebound height
Trial 12 meters 103 cm
Trial 2% meter
Trial 31 meter 58 cm
Which explanation is the best reason for why trial 1 has the
greatest rebound height?
A. The speed of the ball is determined by the distance it
travels.
B. The force applied to the ball is a balanced force.
C) The greater the force applied to the ball the greater the
change in motion.
D. The closer the ball is to the ground the more gravity it
has.

Answers

Answer:

D th

Explanation:

D B. The force applied to the ball is a balanced force.

Bonnie has 16 coins in her pocket worth $1.50. What are two different combinations of coins she could have in her pocket?

Answers

Bonnie could have 2 quaters, 8 nickels, and 6 dimes and she could have 10 dimes, 1 quater, and 5 nickels.

On a roller coaster, riders can experience a force of up to 4 g. What is the
maximum acceleration of the roller coaster?
O A. 51.7 m/s2
B. 39.2 m/s2
O C. 58.4 m/s2
O D. 45.6 m/s2
SUBMIT

Answers

Answer is c
Hope this helps

what is the period of motion of an hour hand on a clock face

Answers

Answer:

Reading a modern clock face

Explanation:

In the analog clock, the minute hand is on "14" minutes, and the hour hand is moving from "12" to "1" - this indicates a time of 12:14.

A vertical spring with a spring constant of 420 N/m is mounted on the floor. From directly above the spring, which is unstrained, a 0.15-kg block is dropped from rest. It collides with and sticks to the spring, which is compressed by 3.7 cm in bringing the block to a momentary halt. Assuming air resistance is negligible, from what height above the compressed spring was the block dropped

Answers

Answer:

19.53 cm

Explanation:

The computation of the height is as follows:

Here we applied the conservation of the energy formula

As we know that

P.E of the block = P.E of the spring

 m g h = ( 1 ÷ 2) k x^2

where

m = 0.15

g = 9.81

k = 420

x = 0.037

So now put the values to the above formula

(0.15) (9.81) (h) = 1 ÷2 × 420 × (0.037)^2

1.4715 (h) = 0.28749

h = 0.19537 m

= 19.53 cm

If the acceleration of the body is towards the center, what is the direction of the unbalanced force ? Using a complete sentence , describe the direction of the net force that causes the body to travel in a circle at a constant speed.

Answers

Accelerating objects are changing their velocity. Velocity is often thought of as an object's speed with a direction. Thus, objects which are accelerating are either changing their speed or changing their direction. They are either speeding up, slowing down or changing directions. Changing the velocity in any one of these three ways would be an example of an accelerated motion.

Suppose we have a vacuum with two metal plates separated by 2 meters. One of the plates has a hole in it so that a charged particle coming from the other one can pass through into empty space. ;The plate with a hole is attached to a voltage source of 5,000,000 V and electrons and muons are introduced near the other plate at 0 V. What energies and velocities do the electrons and muons have when they pass through the hole

Answers

Answer:

hello your question has a some missing information below is the missing information

An electron is one of the most fundamental particles in nature. It is everywhere, in all the matter we can see, and it is with electrons that light interacts when it is emitted, absorbed, or scattered in everyday matter. The electron has a more massive cousin called a muon, also with a charge of -1 e, but with a mass of 1.88x10-28 kg. The electron's mass is 9.11x10-31 kg. You can see why a muon is called a "heavy" electron. A muon is also unstable, and left alone at rest in a lab it will turn into an electron, kinetic energy, and two neutrinos with a lifetime of 2.20x10-6 s.

answer :

energy and velocity of Electron : 8*10^-13 J , < 3*10^8 m/s

energy and velocity of Muon :  8*10^-13 J,  9.22 * 10^7 m/s

Explanation:

Determine the energies and velocities of the electrons and Muons when they pass through the hole

i) energy of electron = q1 * V -- ( 1 )

V ( voltage ) = 5 * 10^6 V

q1 ( charge on electron ) = 1.6 * 10^-19 C

back to equation 1 ; energy of electron = ( 1.6 * 10^-19 ) * 5 * 10^6

= 8*10^-13 J

ii) velocity of electron = 1/2 * Me *( Ve)^2

1/2 * Me *( Ve)^2 = 8*10^-13

∴Ve = [tex]\sqrt{(8*10^{-13} )/(9.11*10^{-31} )}[/tex]   <   3*10^8 m/s

iii) energy of muon

= Eu = q*v = 8*10^-13 J

iv ) velocity of Muon = [tex]\sqrt{(8*10^{-13} )/(1.88*10^{-28} )}[/tex]  = 9.22 * 10^7 m/s

6. If an object accelerates at 3m/s/s, how long does it take for the object to travel at a speed of 12 m/s. ​

Answers

Answer:

4 seconds

Explanation:

Assuming that the object started from rest,

v = at

--> t = v/a = (12 m/s) / (3 m/s^2)

= 4 seconds

Which is the best analogy of a wave?

A wave is like building a ramp.
A wave is like shaking a hand.
A wave is like water rippling in a pond.
A wave is like knocking down a building.

Answers

Answer:

c i think

Explanation:

Answer:

answer is C

Explanation:

What is the answer to the problem?

Answers

Answer:

Other

Explanation:

charge quantity - Q

Big Q represents the source charge which creates the electric field. Little q represents the test charge which is used to measure the strength of the electric field at a given location surrounding the source charge. Give considerable attention to the charge quantity - Q or q - being used in each equation.

Police radar guns measure the speed of moving vehicles by transmitting electromagnetic waves at a vehicle and detecting a Doppler shift in the reflected wave. Suppose police radar transmits at a frequency of 24.0 GHz and receives a wave reflected from a car moving toward the radar at 65.0 mph. Find the frequency shift Df 5 fO 2 fS between the observed (received) and source (transmitted) frequencies.

Answers

Answer:

[tex]4649.20\ \text{Hz}[/tex]

Explanation:

u = Speed of car = 65 mph

[tex]f_s[/tex] = Frequency of source = 24 GHz

c = Speed of light = [tex]3\times 10^8\ \text{m/s}[/tex]

Beat frequency or frequency shift between the observed (received) and source (transmitted) frequencies is given by

[tex]f_o-f_s=\dfrac{2uf_s}{c}\\\Rightarrow \Delta f=\dfrac{2\times 65\times \dfrac{1609.34}{3600}\times 24\times 10^9}{3\times 10^8}\\\Rightarrow \Delta f=4649.20\ \text{Hz}[/tex]

The difference between te required frequencies is [tex]4649.20\ \text{Hz}[/tex].

pls help

What is the frequency range of UV light? Of infrared light?

Answers

Answer:

violet region (UV) is wavelength less than 400 nm, the most common is between 200 and 400 nm,

The infrared (IR) range wavelengths greater than 700 nm

Explanation:

The spectral region near the visible is what humans can see with our eyes.

The range of the ultra violet region (UV) is wavelength less than 400 nm, the most common is between 200 and 400 nm, this radiation is responsible for tanning and skin burns.

The infrared (IR) range is a very wide range that begins at wavelengths greater than 700 nm and continues up to approximately 25,000 nm (1012 Hz).

If the girl skater has a mass of 30 kg and moves backward at 5 m/s, what is the velocity or the boy skater
his mass is 50 kg?

Answers

Question: Two people stand facing each other at a roller-skating rink then push off each other. If the girl skater has a mass of 30 kg and moves backward at 5 m/s, what is the velocity of the boy skater if his mass is 50 kg?

Answer:

3 m/s

Explanation:

Applying,

The Law of conservation of momentum

Momentum of the girl skater = momentum of the boy skater

MV = mv...................... Equation 1

Where M = mass of the girl skater, V = velocity of the girl skater, m = mass of the boy skater, v = velocity of the boy skater

From the question, we were asked to calculate v

v = MV/m.................. Equation 1

Given: M = 30 kg, V = 5 m/s, m = 50 kg

Substitute these values into equation 1

v = (30×5)/50

v = 3 m/s

Hence the velocity of the the boy skater is 3m/s

In medieval times it was believed that projectiles were pushed through the air until they reached their impetus.

a. True
b. Fals

Answers

Answer:

false

Explanation:

19. Using the formula V - IX R, find the voltage in an electrical component with a current of 2 A, and a resistance of 5 omega

O A 20 v
O 8.5v
O C. 2.5 V
O D. 10 v

Answers

Answer:

B

Explanation:

Answer:

B

Explanation:

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Which of the following is an example of kinetic energy being converted to potential energy?

Answers

Of the following...?? Is there more to this question? :)

Answer:

not completed questions

Other Questions
what is 4 1/2 plus 6 2/5 Is this an example of physical or chemical weathering?chemicalphysical Please help I will give brainliest Complete the square to findthe vertex of this parabola.x2 - 2x + y - 4 = 0([?], [ ] _____ 1. Mississippi River _____ 2. area above an aquifer _____ 3. bottled water _____ 4. bacteria _____ 5. multiple sources _____ 6. fertilizer runoff _____ 7. law designed to improve water quality _____ 8. surface water that percolates through soil MULTIPLE CHOICE In the space provided, write the letter of the term or phrase that best completes each statement or best answers each question. _____ 9. Ninety-seven percent of the worlds water resources are found in a. fresh water. c. icecaps and glaciers. b. salt water. d. groundwater. _____ 10. Earths surface water is found in a. lakes. c. streams. b. rivers. d. All of the above _____ 11. Most of the oil that pollutes the ocean comes from a. operating boats and personal watercraft. b. spills from oil tankers. c. runoff from cities and towns. d. leaking underground storage facilities. _____ 12. The three major global uses of fresh water are a. manufacturing goods, wastewater disposal, and irrigation. b. drinking, bathing, and growing crops. c. drinking, manufacturing goods, and generating power. d. residential, agricultural, and industrial uses. Dave is flying to Orlando for spring break, he will be gone a week. run-on or correct? ^ the question is in the picture above how to find an object in a sentence ?? Which of the following describes a complete nucleotide Why did Southern states pass the Black Codes?Group of answer choicesA).to maintain the old way of lifeB).to end the system of slaveryC).to spread slavery to Union statesD).to reduce discrimination against Black people Pluto, the dwarf planet, is 5.9 billion kilometers from the Sun. Explain how a model showing the gravitational pull on Pluto would differ from your model of Earths orbit. (MC)Select the question you would use to discuss the following topic: your opinion about Ramadan.O Qu'est-ce que tu crois qu'ils font?O Qu'est-ce que tu vois qu'ils font?O Comment font-ils?O Qu'est-ce que tu penses de ce qu'ils font? Marco has 2 bags of flour with 6 2/3 cups of flour in each bag. He makes 6 batches of muffins and uses 1 2/3 cups of flour for each batch. How many more batches of muffins can Marco make with the flour he has left? Why is waiting / pausing after making a comment to a child sometimes supportive of their language development? a. you are giving the child the chance to walk away if they do not want to talk to you b. you are giving the child time to process and encouraging the child to use language c. you are giving another child the chance to say something in response d. you are giving the child the chance to memorize what you just said to them Solve the algebraic expression , is it equivalent? What is your favorite part of English class? What about this class is better or worse than other classes you have had? I NEED EXAMPLES! GIVING BRAINLIEST! select the compound inequality shown on the graph. what is the subject for this question'what are you doing here?' Let f(x) = 6x - 54x+100 and g(x)=-3x + 19. Identify the solution(s) of f(x) = g(x). Constructive play involves creating or manipulating objects.O TrueO False similarities between the vas deferens of a male reproductive system and fallopian tube of a female reproductive system are ?