A ball is thrown 125 meters upward and then falls the same distance back to Earth. Neglecting air resistance, its total time in the air is

Answers

Answer 1

Answer:

the ball is in the air for 10 seconds

Explanation:

let gravity = 10m/s/s

height = 1/2 acceleration • time^2

125 m = 1/2 •  10 m/s/s • time ^2

125m = 5 m/s/s • time^2

25s = time^2

5 s = time

5 seconds is the time required for half of the flight

time total = 2 • time

time total = 2 • 5s

time total = 10 s


Related Questions

what would the mass be of an object that was moving at a velocity of 35 m/s and has a kinetic energy of 500j be?

Answers

Answer:

0.816 kg

Explanation:

[tex]E_k=\frac{1}{2}mv^{2}\\[/tex]

so [tex]m=\frac{2E_k}{v^2}=\frac{2\times500}{35^2}=0.816 kg[/tex]

7 principles of Exercise and Sports Training

Answers

Answer: individuality, specificity, progression, overload, adaptation, recovery, and reversibility.

Explanation:

individuality, specificity, progression, overload, adaptation, recovery, and reversibility.

Answer:

1. individuality

2. specificity

3. overload

4. adaptation

5. recovery

6. reversibility

7. progression

Explanation:

I learned this last year.

HITLOW
SS
1/6
A5 kg body is having a Kinetic energy of 250 J. What is the velocity of the body?
15 m/s
20 m/s
40 m/s
10 m/s
ME

Answers

Answer:

10 m/s

Explanation:

KE = 1/2 • m • v^2

250 J = 1/2 • 5 kg • v^2
(2 • 250 J / 5 kg )^1/2 = v

(100)^1/2 = v

10 = v

What is the velocity (in metres per second) of a Canadian
Forces CF-18 fighter jet that travels 8.864 km [S] in
0.297 min?

Answers

Answer:

497 m/s

Explanation:

(8.864 x 10^3 m)/(0.297 * 60 sec) = 497 m/s

The  velocity (in metres per second) of a Canadian Forces CF-18 fighter jet would be 497.41 meters/second.

What is speed?

The total distance covered by any object per unit of time is known as speed.

As given in the problem we have to find out the  velocity (in meters per second) of a Canadian Forces CF-18 fighter jet that travels 8.864 kilometers [S] in 0.297 minutes,

The distance traveled by the  CF-18 fighter jet =  8.864 kilometers

1 kilometer = 1000 meters

8.864 kilometers = 8.864× 1000 meters

                             =8864 meters

The time taken by  CF-18 fighter jet = 0.297 minutes

1 minute = 60 seconds

0.297 minutes = 0.297 ×60 seconds

                        =17.82 seconds

The velocity of the CF-18 fighter jet =8864 meters/17.82 seconds

                                                         = 497.41 meters/second

To learn more about speed from here, refer to the link;

brainly.com/question/7359669

#SPJ2

What is the difference between molecules and
compounds?

Answers

Answer:

All compounds can be classified as molecules, but not all molecules can be called compounds. Molecules are formed by two or more atoms that are bonded by chemical bonding's. Compounds are constructed by two or more elements where the elements are mixed in fixed ratios.

Answer:

Molecules are formed by two or more atoms that are bonded by chemical bondings.
Compounds are constructed by two or more elements where the elements are mixed in fixed ratios

*All compounds can be classified as molecules, but not all molecules can be called compounds.

Explanation:

 pls brainliest if you don't mind

anyway i hope this helped have an awesome day bye byee

The largest identified asteroid is Ceres and is about three times the size of the Moon.
True
or
False

Answers

[tex]false[/tex]

Hope it helps you

GIVING BRAINIEST TO FAST ANSWER!!!!
How does the sun's energy help maintain Earth's energy budget? (3 points)
A part of it is trapped by carbon dioxide and methane.
A part of it heats up Earth's land and water equally.
All of it is turned back towards space.
All of it is trapped by the clouds.

Answers

Answer : Energy from the Sun heats the surface, warms the atmosphere, and powers the ocean currents .

So that's means the answer is the second one

Brainliest if correct Question 5 of 10
Which two types of energy does a book have as it falls to the floor?
A. Kinetic energy
B. Potential energy
c. Nuclear energy
D. Magnetic energy
E. Light energy
SUBMIT

Answers

Answer:

A and B

Explanation:

Kinetic energy is when an object is in motion, and potential energy is kind of when an object stops being in motion, or there is a pause in motion for an extent of time.

When you are holding the book before dropping it, that book is at potential energy. When you drop the book, the book gains kinetic energy as it falls from your hands and hits the floor. Once it hits the floor and rests, it regains potential energy.

I hope that this helps.

A bullet is shot vertically upward with an initial velocity of 128 ft/s. The bullet's height after t seconds is y(t) = 128t - 16t2. What is the height of the bullet at the time the velocity is 0 ft/s?

Answers

The height of the bullet when the velocity is zero is 256 ft.

Height of the bullet when the velocity is zero

The height of the bullet when the velocity is zero is determined by taking derivative of the function as shown below;

[tex]v = \frac{dy}{dt} = 128 -32t \\\\when \ v \ is \ zero\\\\v = 0\\\\128 - 32t = 0\\\\32t = 128\\\\t = \frac{128}{32} \\\\t = 4 \ s[/tex]

The height of the bullet at this time is calculated as follows;

[tex]y(4) = 128(4) - 16(4)^2\\\\y(4) = 256 \ ft[/tex]

Learn more about height of projectiles here: https://brainly.com/question/10008919

Why is it incorrect to say that astronauts are weightlesS in space while orbiting Earth in a space shuttle?​

Answers

This is because Gravity exists everywhere in the universe.

What is Gravity?

This is the force of attraction which acts on all matters in the universe. Astronauts appear weightless while in orbiting the Earth because the space shuttle and the astronauts are in free fall around it.

They fall at the same rate as the space shuttle which is why the astronauts appear weightless.

Read more about Gravity here https://brainly.com/question/88039

Astronauts and their spaceship are affected by Earth's gravity in space. Even though Earth's gravitational influence is weaker in orbit than on Earth's surface, they have weight. They don't feel their weight since nothing's pushing back.

What is weightlessness in space?

Weightlessness means no weight. It's also called zero-G. Weight is the force on a stationary object in a strong gravitational field.

The sensation of weightlessness that astronauts on board the International Space Station enjoy is due to the fact that they are free falling toward the planet Earth. Because the space station and the astronauts are moving at the same rate, there is no external normal force acting upon the body in free fall to balance out the effects of the body's own weight (equal to g).

Therefore, the astronauts and their spaceship continue to have mass and are still affected by the gravitational pull of the Earth.

Learn more about weightlessness, here:

https://brainly.com/question/845413

#SPJ2

how has globalization led to underdeveloped countries?

Answers

Answer: Economic growth is the main channel. Globalization can affect poverty. when countries open up to trade, they tend to grow faster and living standards do tend to increase.

Explanation: I hope this helps :)

List any two reasons for shifting to alternate energy resources?

Answers

Answer:

because non renewables resources are ending day by day ,

alternative energy resources are renewables so it can reduce the load of using non renewables,etc

Explanation:

hope this will help you!

the use of alternative energy sources lets us rely less on the import of fossil fuel. they also help us reduce the need for oil drilling

In a pulley system, two blocks are connected by a rope as shown below. The coefficient of static friction between block A and the surface is 0.8. Block A has a mass of 20kg. What is the minimum mass that block B can have so that block A moves?

Answers

Hi there!

We can begin by doing a summation of forces for each block.

Block A:

This block has the force of tension (in direction of acceleration +) and static friction (opposite direction -) acting on it. Thus:

[tex]\Sigma F_A = T - F_s\\\\m_Aa = T - \mu m_Ag[/tex]

Block B:

This block has the force of tension (opposite of acc. -) and gravity (in direction of acc +), working on it.

[tex]\Sigma F_B = m_Bg - T\\\\ m_Ba = m_Bg - T[/tex]

Add both of the expressions and solve for the maximum mass of Block B.

[tex]\Sigma F = m_Bg - T + T - \mu m_Ag\\\\a(m_A + m_B) = m_Bg - \mu m_Ag[/tex]

To find the minimum value, we can set a = 0, so:

[tex]0 = m_Bg - \mu m_Ag\\\\\mu m_Ag = m_B g\\\\0.8(20)(9.8) = m_B (9.8)\\\\m_B = \frac{0.8(20)(9.8)}{9.8)} = \boxed{16 kg}[/tex]

The block must weigh > 16 kg for block A to move.

A 0.001 kg nail is placed 0.2m away from 0.1 kg hammer. Calculate the gravitational force on the nail from the hammer.   ​

Answers

Answer:

F= 1.67 x [tex]10^{-13}[/tex]N

Explanation:

I used this equation:

F = GMm/R²

Where M is mass 1

where m is mass 2

where R is distance

where F is gravitational force

the nuclues of an atom contains which subatomic particles

Answers

Protons and neutrons. Explanation:
Protons are massive, positively charged
nuclear particles.

Is black made of all colors?

Answers

Black is not a color, but rather a shade. In color theory, a shade is a pure color mixed with black. It decreases its lightness while nearly conserving its chromaticity. Strictly speaking, a "shade of black" is always a pure black itself and a "tint of black" would be a neutral gray. Unlike these, many off-black colors possess a hue and a colorfulness (also called saturation).

Attached is an image showing a few of the different shades of black.

Hope this helps! Brainliest would be much appreciated! Have a great day! :)

The answer is "no" because black is not made of all colors, in fact black is not a color, but black is the absence of light.

What is Light?

Light is an electromagnetic radiation which can be recognized by the human eye. Electromagnetic radiation occurs at a wide variety of wavelengths, from cosmic rays with wavelengths smaller than around 1 1011 meters to radio waves estimated in meters.

Within that large spectrum, the colors visible to humans comprise a relatively small band, ranging from around 700 nanometers for red light to roughly 400 nm for violet light. The spectral areas close to the visible band are also referred to as light, with infrared at one side and ultraviolet the other.

The absence or full assimilation of visible light produces the color black. It is an anamorphic lens color with no tint, similar to white and gray. It is frequently used symbolically or colloquially to denote darkness.

To know more about Light :

https://brainly.com/question/15200315

#SPJ2

A heat engine is used to convert heat into which of the following?

Answers

What are the options?

Answer:

work

Explanation:

A 1,200 kg car accelerates at 3 m/s2. What net force is the car experiencing during this
acceleration?
0 3600 N
0 2000 N
2400 N
O ON

Answers

Answer:

3600 N

Explanation:

F=ma

1200*3 = 3600

One day, the distance between the crests of the waves at sea is 2.5m. The shortest time between the lowest and highest positions of the floating boat was 0.625 seconds.
a) Calculate the wave period.
b) Calculate the speed of the wave.

Answers

Answer:

1.25 sec, 2 m/s

Explanation:

Period = 2 * 0.625 sec = 1.25 sec

speed = 2.5/1.25 = 2 m/s

Activity 5: My FB (Faulty Block)

Directions: Given the illustration of the fault blocks below, draw how it looks like

after acted upon by stress forces. Draw the direction of forces acting on each type

of stress force in the fault blocks and identify the type of stress acting on the

block. ​

Answers

Answer :23


Explanation: i can’t see the image

Find the charge on capacitor, C2 , in the diagram below if V_ab=24.0 volts,〖 C〗_1=6.00 μF,〖 C〗_2= 3.00 μF,and C_3=10.0 μF.

Answers

The charge on the capacitor 2 (C₂) is 48μF.

Analysis of the circuit diagram

In the circuit diagram, C₁ and C₂ are in series connection, while C₃ is parallel to C₁ and C₂.

Same charge flows in a series arrangement (charge on C₁ = charge on C₂).Same voltage flows in a parallel arrangement (voltage on C₁, C₂ = voltage on C₃).

Charge on capacitor C₁ and C₂

[tex]Q_1 = Q_2 = Q\\\\V = \frac{Q}{C_1} + \frac{Q}{C_2} \\\\V = Q(\frac{1}{C_1}+ \frac{1}{C_2} )\\\\V = Q(\frac{C_2 + C_1}{C_1 C_2} )\\\\Q = V(\frac{C_1 C_2}{C_2+ C_1} )\\\\Q = 24 \times (\frac{6\times 10^{-6} \times 3 \times 10^{-6}}{6\times 10^{-6} \ + \ 3\times 10^{-6}} )\\\\Q = \frac{4.32 \times 10^{-10}}{9\times 10^{-6}} \\\\Q = 4.8\times 10^{-5} \ C\\\\Q = 48 \ \mu C[/tex]

Thus, the charge on the capacitor 2 (C₂) is 48μF.

Learn more about charge on capacitor here: https://brainly.com/question/13578522

Which of the following shows the correct order of a life cycle for an animal?

Egg → Adolescent → Infant → Adult → Embryo
Egg → Embryo → Infant → Adolescent → Adult
Embryo → Egg → Infant → Adult → Adolescent
Infant → Adolescent → Adult → Embryo → Egg

Answers

Answer:

Egg, Embryo, infant, adolescent and adult

Answer:

egg,embryo,infant,adolesent,adlt /B

Explanation:

What is the Story of Issac Newton​

Answers

Answer:

Isaac Newton is considered one of the most important scientists in history. ... During his lifetime Newton developed the theory of gravity, the laws of motion (which became the basis for physics), a new type of mathematics called calculus. The legend is that Newton discovered Gravity when he saw a falling apple while thinking about the forces of nature. Whatever really happened, Newton realized that some force must be acting on falling objects like apples because otherwise they would not start moving from rest.

A ball is placed at the top of a hill then released. After 5 seconds it has a speed of 20 m/s. What is the average acceleration of the ball

Answers

Answer:2

Explanation:When the ball is released from the top of the hill then it's initial velocity (u)=0 And it's final velocity will be after 5 second (v)=2.

Answer:

Explanation:

a ball is placed at the top of the hill and then released after five seconds and has a speed of 20 m/s. What is the average acceleration of the ball?

What does acid rain look like so that anyone can recognize it?

Answers

Possibly green rain.. maybe

A copper wire has a diameter of 1.947 mm. What magnitude current flows when the drift velocity is 1.79 mm/s

Answers

Answer:

  72.5 A

Explanation:

There are about 13.6 coulombs of free electron charges in each cubic mm of copper. So, the rate of movement of charge is that quantity multiplied by the volume in the flow.

  V = πr²h  . . . . .  volume of a cylinder

  V = π(1.947 mm/2)²(1.79 mm/s) = 5.329 mm³/s

Then the charge flow rate is ...

  (13.6 C/mm³)(5.329 mm³/s) = 72.5 C/s

The magnitude of the current is about 72.5 amperes.

______

Additional comment

The volume of free charge in copper can be computed from the density, molar mass, number of atoms in a mole, number of charges in a coulomb, and the number of free charges per atom. Some of the combinations of necessary calculations can be found with a web search, so it is not unreasonable to presume that the charge density is known.

list some of the electronic system?

Answers

Answer:

list some of the electronic system?

An audio system, TV, or any Mp3 player is the example of an electronic system. The sound waves are converted to electrical signals and they are amplified to process the output of high strengthened audio signals, through speakers.

[tex]TextFromYourMrEx...[/tex]

#CarryOnLearning

I am confused how to find the final velocity after the collision of the block?

Answers

Answer:

kmvmm x=0

               l

              V  

                  V

                      0 = kmvm = x=0

Explanation:

A ray of light bends upon entering a new medium. What is the phenomenon called?

Answers

Explanation:

refraction is the change in direction of a wave passing from one medium to another or from a gradual change in the medium.

Can a convex mirror form a real image?​

Answers

Answer:

yes !

Explanation:

a mirror transforms and flips , but nonetheless produces a real image.

Other Questions
what is the mode of 5, 8, 9, 10, 4, 5, 10, 12, 5 Which evidence card could be eliminated because it did not isolate variables?Evidence Card A: Magnetic pole arrangementEvidence Card A: Magnetic pole arrangementEvidence Card B: Number of wire coilsEvidence Card B: Number of wire coilsEvidence Card C: Rail materialEvidence Card C: Rail materialEvidence Card D: Distance between the car and launcherEvidence Card D: Distance between the car and launcherNone should be eliminated.None should be eliminated. What happened to Mexican Americans after the Mexican Americans war? Im Gloria anzaldua point of viewfrom the book borderlands la frontera HELP QUICK QUICK In what ways did the geography of Arkansas influence both settlement and cultural development of the Mississippi All==uvial Plains and Ozark Mountain regions? Which of the following is NOT a requirement for the Class E driving skillstest?A. You must be able to give hand signals.B. Your bumpers must meet height requirements.C. The vehicle must be able to exceed 25 mph.D. A parent or legal guardian must accompany you. Which metal in the fourth period is the least reactive? Explain your reasoning Ahmad has $112 in his checking account and earns $75 per weeksworking part-time. Assume he has no expenses currently.Calculate how much will Ahmad save in his account at the end of 4weeks 2 What popular form of pirate entertainment is described in the chapter on pirates that you read for this lesson? (You can look back.)wrestling on a slippery plankacting out courtroom trialscard games with serious penalties for losersteasing their prisoners Briefly discuss three objectives of the government A spinner has three sections. The table shows the results of spinning the arrow on the spinner 80 times. What is the experimental probability of the arrow stopping over Section 1?. The excerpt is an example of inductive reasoning because the authors work from a generalization to formulate specific examples. Arrive at a generalization after starting with another generalization. Formulate a generalization by studying specific examples. Arrive at specific examples by studying other examples. An onion has five times as much DNA as a human. Why doesnt that make onions more complex than humans? 14 students have volunteered for a committee. Eight of them are seniors and six of them are juniors. (a) How many ways are there to select a committee of 5 students Results in a net release of energyCatabolicAnabolic How long do employers need to keep the records for osha bloodborne pathogens standard training?. its not fair h0w i cant get to ask for help without pay like yall need to fix. Heres my question 52 companies; 25% increase Which of the following expression is equivalent to 35+14 Area of a circle D=10 a.62.80b.78.50c.314d.15.70e.31.40 Genetic engineers use plasmids. A plasmid isA. a map of a gene.B. a cell that is not yet specialized.C. a small, circular piece of DNA.D. an enzyme that can cut DNA into pieces. HELP!!! In what ways was Tecumseh'splan a good one, and in what ways was it likelyto fail?